prompt

.bazelignore

@@ -1,3 +0,0 @@
-# Without this, Bazel will consider BUILD.bazel files in
-# .git/sl/origbackups (which can be populated by Sapling SCM).
-.git

.bazelrc

@@ -1,46 +0,0 @@
-common --repo_env=BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=1
-common --repo_env=BAZEL_NO_APPLE_CPP_TOOLCHAIN=1
-
-common --disk_cache=~/.cache/bazel-disk-cache
-common --repo_contents_cache=~/.cache/bazel-repo-contents-cache
-common --repository_cache=~/.cache/bazel-repo-cache
-startup --experimental_remote_repo_contents_cache
-
-common --experimental_platform_in_output_dir
-
-common --enable_platform_specific_config
-# TODO(zbarsky): We need to untangle these libc constraints to get linux remote builds working.
-common:linux --host_platform=//:local
-common --@rules_cc//cc/toolchains/args/archiver_flags:use_libtool_on_macos=False
-common --@toolchains_llvm_bootstrapped//config:experimental_stub_libgcc_s
-
-# We need to use the sh toolchain on windows so we don't send host bash paths to the linux executor.
-common:windows --@rules_rust//rust/settings:experimental_use_sh_toolchain_for_bootstrap_process_wrapper
-
-# TODO(zbarsky): rules_rust doesn't implement this flag properly with remote exec...
-# common --@rules_rust//rust/settings:pipelined_compilation
-
-common --incompatible_strict_action_env
-# Not ideal, but We need to allow dotslash to be found
-common --test_env=PATH=/opt/homebrew/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
-
-common --test_output=errors
-common --bes_results_url=https://app.buildbuddy.io/invocation/
-common --bes_backend=grpcs://remote.buildbuddy.io
-common --remote_cache=grpcs://remote.buildbuddy.io
-common --remote_download_toplevel
-common --nobuild_runfile_links
-common --remote_timeout=3600
-common --noexperimental_throttle_remote_action_building
-common --experimental_remote_execution_keepalive
-common --grpc_keepalive_time=30s
-
-# This limits both in-flight executions and concurrent downloads. Even with high number
-# of jobs execution will still be limited by CPU cores, so this just pays a bit of
-# memory in exchange for higher download concurrency.
-common --jobs=30
-
-common:remote --extra_execution_platforms=//:rbe
-common:remote --remote_executor=grpcs://remote.buildbuddy.io
-common:remote --jobs=800
-

.bazelversion

@@ -1 +0,0 @@
-9.0.0

.github/ISSUE_TEMPLATE/2-bug-report.yml

@@ -40,18 +40,11 @@ body:
       description: |
         For MacOS and Linux: copy the output of `uname -mprs`
         For Windows: copy the output of `"$([Environment]::OSVersion | ForEach-Object VersionString) $(if ([Environment]::Is64BitOperatingSystem) { "x64" } else { "x86" })"` in the PowerShell console
-  - type: input
-    id: terminal
-    attributes:
-      label: What terminal emulator and version are you using (if applicable)?
-      description: Also note any multiplexer in use (screen / tmux / zellij)
-      description: |
-        E.g, VSCode, Terminal.app, iTerm2, Ghostty, Windows Terminal (WSL / PowerShell)
   - type: textarea
     id: actual
     attributes:
       label: What issue are you seeing?
-      description: Please include the full error messages and prompts with PII redacted. If possible, please provide text instead of a screenshot.
+      description: Please include the full error messages and prompts with PII redacted. If possible, please provide text instead of a screenshot. 
     validations:
       required: true
   - type: textarea

.github/scripts/install-musl-build-tools.sh

@@ -1,163 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-: "${TARGET:?TARGET environment variable is required}"
-: "${GITHUB_ENV:?GITHUB_ENV environment variable is required}"
-
-apt_update_args=()
-if [[ -n "${APT_UPDATE_ARGS:-}" ]]; then
-  # shellcheck disable=SC2206
-  apt_update_args=(${APT_UPDATE_ARGS})
-fi
-
-apt_install_args=()
-if [[ -n "${APT_INSTALL_ARGS:-}" ]]; then
-  # shellcheck disable=SC2206
-  apt_install_args=(${APT_INSTALL_ARGS})
-fi
-
-sudo apt-get update "${apt_update_args[@]}"
-sudo apt-get install -y "${apt_install_args[@]}" musl-tools pkg-config g++ clang libc++-dev libc++abi-dev lld
-
-case "${TARGET}" in
-  x86_64-unknown-linux-musl)
-    arch="x86_64"
-    ;;
-  aarch64-unknown-linux-musl)
-    arch="aarch64"
-    ;;
-  *)
-    echo "Unexpected musl target: ${TARGET}" >&2
-    exit 1
-    ;;
-esac
-
-# Use the musl toolchain as the Rust linker to avoid Zig injecting its own CRT.
-if command -v "${arch}-linux-musl-gcc" >/dev/null; then
-  musl_linker="$(command -v "${arch}-linux-musl-gcc")"
-elif command -v musl-gcc >/dev/null; then
-  musl_linker="$(command -v musl-gcc)"
-else
-  echo "musl gcc not found after install; arch=${arch}" >&2
-  exit 1
-fi
-
-zig_target="${TARGET/-unknown-linux-musl/-linux-musl}"
-runner_temp="${RUNNER_TEMP:-/tmp}"
-tool_root="${runner_temp}/codex-musl-tools-${TARGET}"
-mkdir -p "${tool_root}"
-
-sysroot=""
-if command -v zig >/dev/null; then
-  zig_bin="$(command -v zig)"
-  cc="${tool_root}/zigcc"
-  cxx="${tool_root}/zigcxx"
-
-  cat >"${cc}" <<EOF
-#!/usr/bin/env bash
-set -euo pipefail
-
-args=()
-skip_next=0
-for arg in "\$@"; do
-  if [[ "\${skip_next}" -eq 1 ]]; then
-    skip_next=0
-    continue
-  fi
-  case "\${arg}" in
-    --target)
-      skip_next=1
-      continue
-      ;;
-    --target=*|-target=*|-target)
-      # Drop any explicit --target/-target flags. Zig expects -target and
-      # rejects Rust triples like *-unknown-linux-musl.
-      if [[ "\${arg}" == "-target" ]]; then
-        skip_next=1
-      fi
-      continue
-      ;;
-  esac
-  args+=("\${arg}")
-done
-
-exec "${zig_bin}" cc -target "${zig_target}" "\${args[@]}"
-EOF
-  cat >"${cxx}" <<EOF
-#!/usr/bin/env bash
-set -euo pipefail
-
-args=()
-skip_next=0
-for arg in "\$@"; do
-  if [[ "\${skip_next}" -eq 1 ]]; then
-    skip_next=0
-    continue
-  fi
-  case "\${arg}" in
-    --target)
-      skip_next=1
-      continue
-      ;;
-    --target=*|-target=*|-target)
-      if [[ "\${arg}" == "-target" ]]; then
-        skip_next=1
-      fi
-      continue
-      ;;
-  esac
-  args+=("\${arg}")
-done
-
-exec "${zig_bin}" c++ -target "${zig_target}" "\${args[@]}"
-EOF
-  chmod +x "${cc}" "${cxx}"
-
-  sysroot="$("${zig_bin}" cc -target "${zig_target}" -print-sysroot 2>/dev/null || true)"
-else
-  cc="${musl_linker}"
-
-  if command -v "${arch}-linux-musl-g++" >/dev/null; then
-    cxx="$(command -v "${arch}-linux-musl-g++")"
-  elif command -v musl-g++ >/dev/null; then
-    cxx="$(command -v musl-g++)"
-  else
-    cxx="${cc}"
-  fi
-fi
-
-if [[ -n "${sysroot}" && "${sysroot}" != "/" ]]; then
-  echo "BORING_BSSL_SYSROOT=${sysroot}" >> "$GITHUB_ENV"
-  boring_sysroot_var="BORING_BSSL_SYSROOT_${TARGET}"
-  boring_sysroot_var="${boring_sysroot_var//-/_}"
-  echo "${boring_sysroot_var}=${sysroot}" >> "$GITHUB_ENV"
-fi
-
-cflags="-pthread"
-cxxflags="-pthread"
-if [[ "${TARGET}" == "aarch64-unknown-linux-musl" ]]; then
-  # BoringSSL enables -Wframe-larger-than=25344 under clang and treats warnings as errors.
-  cflags="${cflags} -Wno-error=frame-larger-than"
-  cxxflags="${cxxflags} -Wno-error=frame-larger-than"
-fi
-
-echo "CFLAGS=${cflags}" >> "$GITHUB_ENV"
-echo "CXXFLAGS=${cxxflags}" >> "$GITHUB_ENV"
-echo "CC=${cc}" >> "$GITHUB_ENV"
-echo "TARGET_CC=${cc}" >> "$GITHUB_ENV"
-target_cc_var="CC_${TARGET}"
-target_cc_var="${target_cc_var//-/_}"
-echo "${target_cc_var}=${cc}" >> "$GITHUB_ENV"
-echo "CXX=${cxx}" >> "$GITHUB_ENV"
-echo "TARGET_CXX=${cxx}" >> "$GITHUB_ENV"
-target_cxx_var="CXX_${TARGET}"
-target_cxx_var="${target_cxx_var//-/_}"
-echo "${target_cxx_var}=${cxx}" >> "$GITHUB_ENV"
-
-cargo_linker_var="CARGO_TARGET_${TARGET^^}_LINKER"
-cargo_linker_var="${cargo_linker_var//-/_}"
-echo "${cargo_linker_var}=${musl_linker}" >> "$GITHUB_ENV"
-
-echo "CMAKE_C_COMPILER=${cc}" >> "$GITHUB_ENV"
-echo "CMAKE_CXX_COMPILER=${cxx}" >> "$GITHUB_ENV"
-echo "CMAKE_ARGS=-DCMAKE_HAVE_THREADS_LIBRARY=1 -DCMAKE_USE_PTHREADS_INIT=1 -DCMAKE_THREAD_LIBS_INIT=-pthread -DTHREADS_PREFER_PTHREAD_FLAG=ON" >> "$GITHUB_ENV"

.github/workflows/Dockerfile.bazel

@@ -1,20 +0,0 @@
-FROM ubuntu:24.04
-
-# TODO(mbolin): Published to docker.io/mbolin491/codex-bazel:latest for
-# initial debugging, but we should publish to a more proper location.
-#
-# docker buildx create --use
-# docker buildx build --platform linux/amd64,linux/arm64 -f .github/workflows/Dockerfile.bazel -t mbolin491/codex-bazel:latest --push .
-
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-    curl git python3 ca-certificates && \
-    rm -rf /var/lib/apt/lists/*
-
-# Install dotslash.
-RUN curl -LSfs "https://github.com/facebook/dotslash/releases/download/v0.5.8/dotslash-ubuntu-22.04.$(uname -m).tar.gz" | tar fxz - -C /usr/local/bin
-
-# Ubuntu 24.04 ships with user 'ubuntu' already created with UID 1000.
-USER ubuntu
-
-WORKDIR /workspace

.github/workflows/bazel.yml

@@ -1,110 +0,0 @@
-name: Bazel (experimental)
-
-# Note this workflow was originally derived from:
-# https://github.com/cerisier/toolchains_llvm_bootstrapped/blob/main/.github/workflows/ci.yaml
-
-on:
-  pull_request: {}
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-concurrency:
-  # Cancel previous actions from the same PR or branch except 'main' branch.
-  # See https://docs.github.com/en/actions/using-jobs/using-concurrency and https://docs.github.com/en/actions/learn-github-actions/contexts for more info.
-  group: concurrency-group::${{ github.workflow }}::${{ github.event.pull_request.number > 0 && format('pr-{0}', github.event.pull_request.number) || github.ref_name }}${{ github.ref_name == 'main' && format('::{0}', github.run_id) || ''}}
-  cancel-in-progress: ${{ github.ref_name != 'main' }}
-jobs:
-  test:
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          # macOS
-          - os: macos-15-xlarge
-            target: aarch64-apple-darwin
-          - os: macos-15-xlarge
-            target: x86_64-apple-darwin
-
-          # Linux
-          - os: ubuntu-24.04-arm
-            target: aarch64-unknown-linux-gnu
-          - os: ubuntu-24.04
-            target: x86_64-unknown-linux-gnu
-          - os: ubuntu-24.04-arm
-            target: aarch64-unknown-linux-musl
-          - os: ubuntu-24.04
-            target: x86_64-unknown-linux-musl
-          # TODO: Enable Windows once we fix the toolchain issues there.
-          #- os: windows-latest
-          #  target: x86_64-pc-windows-gnullvm
-    runs-on: ${{ matrix.os }}
-
-    # Configure a human readable name for each job
-    name: Local Bazel build on ${{ matrix.os }} for ${{ matrix.target }}
-
-    steps:
-      - uses: actions/checkout@v6
-
-      # Some integration tests rely on DotSlash being installed.
-      # See https://github.com/openai/codex/pull/7617.
-      - name: Install DotSlash
-        uses: facebook/install-dotslash@v2
-
-      - name: Make DotSlash available in PATH (Unix)
-        if: runner.os != 'Windows'
-        run: cp "$(which dotslash)" /usr/local/bin
-
-      - name: Make DotSlash available in PATH (Windows)
-        if: runner.os == 'Windows'
-        shell: pwsh
-        run: Copy-Item (Get-Command dotslash).Source -Destination "$env:LOCALAPPDATA\Microsoft\WindowsApps\dotslash.exe"
-
-      # Install Bazel via Bazelisk
-      - name: Set up Bazel
-        uses: bazelbuild/setup-bazelisk@v3
-
-      # TODO(mbolin): Bring this back once we have caching working. Currently,
-      # we never seem to get a cache hit but we still end up paying the cost of
-      # uploading at the end of the build, which takes over a minute!
-      #
-      # Cache build and external artifacts so that the next ci build is incremental.
-      # Because github action caches cannot be updated after a build, we need to
-      # store the contents of each build in a unique cache key, then fall back to loading
-      # it on the next ci run. We use hashFiles(...) in the key and restore-keys- with
-      # the prefix to load the most recent cache for the branch on a cache miss. You
-      # should customize the contents of hashFiles to capture any bazel input sources,
-      # although this doesn't need to be perfect. If none of the input sources change
-      # then a cache hit will load an existing cache and bazel won't have to do any work.
-      # In the case of a cache miss, you want the fallback cache to contain most of the
-      # previously built artifacts to minimize build time. The more precise you are with
-      # hashFiles sources the less work bazel will have to do.
-      # - name: Mount bazel caches
-      #   uses: actions/cache@v5
-      #   with:
-      #     path: |
-      #       ~/.cache/bazel-repo-cache
-      #       ~/.cache/bazel-repo-contents-cache
-      #     key: bazel-cache-${{ matrix.os }}-${{ hashFiles('**/BUILD.bazel', '**/*.bzl', 'MODULE.bazel') }}
-      #     restore-keys: |
-      #       bazel-cache-${{ matrix.os }}
-
-      - name: Configure Bazel startup args (Windows)
-        if: runner.os == 'Windows'
-        shell: pwsh
-        run: |
-          # Use a very short path to reduce argv/path length issues.
-          "BAZEL_STARTUP_ARGS=--output_user_root=C:\" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
-
-      - name: bazel test //...
-        env:
-          BUILDBUDDY_API_KEY: ${{ secrets.BUILDBUDDY_API_KEY }}
-        shell: bash
-        run: |
-          bazel $BAZEL_STARTUP_ARGS --bazelrc=.github/workflows/ci.bazelrc test //... \
-            --build_metadata=REPO_URL=https://github.com/openai/codex.git \
-            --build_metadata=COMMIT_SHA=$(git rev-parse HEAD) \
-            --build_metadata=ROLE=CI \
-            --build_metadata=VISIBILITY=PUBLIC \
-            "--remote_header=x-buildbuddy-api-key=$BUILDBUDDY_API_KEY"

.github/workflows/ci.bazelrc

@@ -1,20 +0,0 @@
-common --remote_download_minimal
-common --nobuild_runfile_links
-common --keep_going
-
-# We prefer to run the build actions entirely remotely so we can dial up the concurrency.
-# We have platform-specific tests, so we want to execute the tests on all platforms using the strongest sandboxing available on each platform.
-
-# On linux, we can do a full remote build/test, by targeting the right (x86/arm) runners, so we have coverage of both.
-# Linux crossbuilds don't work until we untangle the libc constraint mess.
-common:linux --config=remote
-common:linux --strategy=remote
-common:linux --platforms=//:rbe
-
-# On mac, we can run all the build actions remotely but test actions locally.
-common:macos --config=remote
-common:macos --strategy=remote
-common:macos --strategy=TestRunner=darwin-sandbox,local
-
-common:windows --strategy=TestRunner=local
-

.github/workflows/rust-ci.yml

@@ -59,7 +59,7 @@ jobs:
         working-directory: codex-rs
     steps:
       - uses: actions/checkout@v6
-      - uses: dtolnay/rust-toolchain@1.92
+      - uses: dtolnay/rust-toolchain@1.90
         with:
           components: rustfmt
       - name: cargo fmt
@@ -77,7 +77,7 @@ jobs:
         working-directory: codex-rs
     steps:
       - uses: actions/checkout@v6
-      - uses: dtolnay/rust-toolchain@1.92
+      - uses: dtolnay/rust-toolchain@1.90
       - uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2
         with:
           tool: cargo-shear
@@ -88,7 +88,7 @@ jobs:
   # --- CI to validate on different os/targets --------------------------------
   lint_build:
     name: Lint/Build — ${{ matrix.runner }} - ${{ matrix.target }}${{ matrix.profile == 'release' && ' (release)' || '' }}
-    runs-on: ${{ matrix.runs_on || matrix.runner }}
+    runs-on: ${{ matrix.runner }}
     timeout-minutes: 30
     needs: changed
     # Keep job-level if to avoid spinning up runners when not needed
@@ -106,78 +106,51 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - runner: macos-15-xlarge
+          - runner: macos-14
             target: aarch64-apple-darwin
             profile: dev
-          - runner: macos-15-xlarge
+          - runner: macos-14
             target: x86_64-apple-darwin
             profile: dev
           - runner: ubuntu-24.04
             target: x86_64-unknown-linux-musl
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-linux-x64
           - runner: ubuntu-24.04
             target: x86_64-unknown-linux-gnu
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-linux-x64
           - runner: ubuntu-24.04-arm
             target: aarch64-unknown-linux-musl
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-linux-arm64
           - runner: ubuntu-24.04-arm
             target: aarch64-unknown-linux-gnu
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-linux-arm64
-          - runner: windows-x64
+          - runner: windows-latest
             target: x86_64-pc-windows-msvc
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-windows-x64
-          - runner: windows-arm64
+          - runner: windows-11-arm
             target: aarch64-pc-windows-msvc
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-windows-arm64
 
           # Also run representative release builds on Mac and Linux because
           # there could be release-only build errors we want to catch.
           # Hopefully this also pre-populates the build cache to speed up
           # releases.
-          - runner: macos-15-xlarge
+          - runner: macos-14
             target: aarch64-apple-darwin
             profile: release
           - runner: ubuntu-24.04
             target: x86_64-unknown-linux-musl
             profile: release
-            runs_on:
-              group: codex-runners
-              labels: codex-linux-x64
-          - runner: windows-x64
+          - runner: windows-latest
             target: x86_64-pc-windows-msvc
             profile: release
-            runs_on:
-              group: codex-runners
-              labels: codex-windows-x64
-          - runner: windows-arm64
+          - runner: windows-11-arm
             target: aarch64-pc-windows-msvc
             profile: release
-            runs_on:
-              group: codex-runners
-              labels: codex-windows-arm64
 
     steps:
       - uses: actions/checkout@v6
-      - uses: dtolnay/rust-toolchain@1.92
+      - uses: dtolnay/rust-toolchain@1.90
         with:
           targets: ${{ matrix.target }}
           components: clippy
@@ -261,21 +234,15 @@ jobs:
             /var/cache/apt
           key: apt-${{ matrix.runner }}-${{ matrix.target }}-v1
 
-      - if: ${{ matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl'}}
-        name: Install Zig
-        uses: mlugg/setup-zig@v2
-        with:
-          version: 0.14.0
-
       - if: ${{ matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl'}}
         name: Install musl build tools
         env:
           DEBIAN_FRONTEND: noninteractive
-          TARGET: ${{ matrix.target }}
-          APT_UPDATE_ARGS: -o Acquire::Retries=3
-          APT_INSTALL_ARGS: --no-install-recommends
         shell: bash
-        run: bash "${GITHUB_WORKSPACE}/.github/scripts/install-musl-build-tools.sh"
+        run: |
+          set -euo pipefail
+          sudo apt-get -y update -o Acquire::Retries=3
+          sudo apt-get -y install --no-install-recommends musl-tools pkg-config
 
       - name: Install cargo-chef
         if: ${{ matrix.profile == 'release' }}
@@ -369,7 +336,7 @@ jobs:
 
   tests:
     name: Tests — ${{ matrix.runner }} - ${{ matrix.target }}
-    runs-on: ${{ matrix.runs_on || matrix.runner }}
+    runs-on: ${{ matrix.runner }}
     timeout-minutes: 30
     needs: changed
     if: ${{ needs.changed.outputs.codex == 'true' || needs.changed.outputs.workflows == 'true' || github.event_name == 'push' }}
@@ -386,43 +353,46 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - runner: macos-15-xlarge
+          - runner: macos-14
             target: aarch64-apple-darwin
             profile: dev
           - runner: ubuntu-24.04
             target: x86_64-unknown-linux-gnu
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-linux-x64
           - runner: ubuntu-24.04-arm
             target: aarch64-unknown-linux-gnu
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-linux-arm64
-          - runner: windows-x64
+          - runner: windows-latest
             target: x86_64-pc-windows-msvc
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-windows-x64
-          - runner: windows-arm64
+          - runner: windows-11-arm
             target: aarch64-pc-windows-msvc
             profile: dev
-            runs_on:
-              group: codex-runners
-              labels: codex-windows-arm64
 
     steps:
       - uses: actions/checkout@v6
 
+      # We have been running out of space when running this job on Linux for
+      # x86_64-unknown-linux-gnu, so remove some unnecessary dependencies.
+      - name: Remove unnecessary dependencies to save space
+        if: ${{ startsWith(matrix.runner, 'ubuntu') }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          sudo rm -rf \
+            /usr/local/lib/android \
+            /usr/share/dotnet \
+            /usr/local/share/boost \
+            /usr/local/lib/node_modules \
+            /opt/ghc
+          sudo apt-get remove -y docker.io docker-compose podman buildah
+
       # Some integration tests rely on DotSlash being installed.
       # See https://github.com/openai/codex/pull/7617.
       - name: Install DotSlash
         uses: facebook/install-dotslash@v2
 
-      - uses: dtolnay/rust-toolchain@1.92
+      - uses: dtolnay/rust-toolchain@1.90
         with:
           targets: ${{ matrix.target }}
 

.github/workflows/rust-release.yml

@@ -20,7 +20,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: dtolnay/rust-toolchain@1.92
 
       - name: Validate tag matches Cargo.toml version
         shell: bash
@@ -46,20 +45,11 @@ jobs:
           echo "✅  Tag and Cargo.toml agree (${tag_ver})"
           echo "::endgroup::"
 
-      - name: Verify config schema fixture
-        shell: bash
-        working-directory: codex-rs
-        run: |
-          set -euo pipefail
-          echo "If this fails, run: just write-config-schema to overwrite fixture with intentional changes."
-          cargo run -p codex-core --bin codex-write-config-schema
-          git diff --exit-code core/config.schema.json
-
   build:
     needs: tag-check
     name: Build - ${{ matrix.runner }} - ${{ matrix.target }}
     runs-on: ${{ matrix.runner }}
-    timeout-minutes: 60
+    timeout-minutes: 30
     permissions:
       contents: read
       id-token: write
@@ -90,7 +80,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v6
-      - uses: dtolnay/rust-toolchain@1.92
+      - uses: dtolnay/rust-toolchain@1.90
         with:
           targets: ${{ matrix.target }}
 
@@ -104,17 +94,11 @@ jobs:
             ${{ github.workspace }}/codex-rs/target/
           key: cargo-${{ matrix.runner }}-${{ matrix.target }}-release-${{ hashFiles('**/Cargo.lock') }}
 
-      - if: ${{ matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl'}}
-        name: Install Zig
-        uses: mlugg/setup-zig@v2
-        with:
-          version: 0.14.0
-
       - if: ${{ matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl'}}
         name: Install musl build tools
-        env:
-          TARGET: ${{ matrix.target }}
-        run: bash "${GITHUB_WORKSPACE}/.github/scripts/install-musl-build-tools.sh"
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y musl-tools pkg-config
 
       - name: Cargo build
         shell: bash
@@ -291,28 +275,7 @@ jobs:
             # Must run from inside the dest dir so 7z won't
             # embed the directory path inside the zip.
             if [[ "${{ matrix.runner }}" == windows* ]]; then
-              if [[ "$base" == "codex-${{ matrix.target }}.exe" ]]; then
-                # Bundle the sandbox helper binaries into the main codex zip so
-                # WinGet installs include the required helpers next to codex.exe.
-                # Fall back to the single-binary zip if the helpers are missing
-                # to avoid breaking releases.
-                bundle_dir="$(mktemp -d)"
-                runner_src="$dest/codex-command-runner-${{ matrix.target }}.exe"
-                setup_src="$dest/codex-windows-sandbox-setup-${{ matrix.target }}.exe"
-                if [[ -f "$runner_src" && -f "$setup_src" ]]; then
-                  cp "$dest/$base" "$bundle_dir/$base"
-                  cp "$runner_src" "$bundle_dir/codex-command-runner.exe"
-                  cp "$setup_src" "$bundle_dir/codex-windows-sandbox-setup.exe"
-                  (cd "$bundle_dir" && 7z a "$dest/${base}.zip" .)
-                else
-                  echo "warning: missing sandbox binaries; falling back to single-binary zip"
-                  echo "warning: expected $runner_src and $setup_src"
-                  (cd "$dest" && 7z a "${base}.zip" "$base")
-                fi
-                rm -rf "$bundle_dir"
-              else
-                (cd "$dest" && 7z a "${base}.zip" "$base")
-              fi
+              (cd "$dest" && 7z a "${base}.zip" "$base")
             fi
 
             # Also create .zst (existing behaviour) *and* remove the original
@@ -395,10 +358,6 @@ jobs:
 
           ls -R dist/
 
-      - name: Add config schema release asset
-        run: |
-          cp codex-rs/core/config.schema.json dist/config-schema.json
-
       - name: Define release name
         id: release_name
         run: |
@@ -469,19 +428,6 @@ jobs:
           tag: ${{ github.ref_name }}
           config: .github/dotslash-config.json
 
-      - name: Trigger developers.openai.com deploy
-        # Only trigger the deploy if the release is not a pre-release.
-        # The deploy is used to update the developers.openai.com website with the new config schema json file.
-        if: ${{ !contains(steps.release_name.outputs.name, '-') }}
-        continue-on-error: true
-        env:
-          DEV_WEBSITE_VERCEL_DEPLOY_HOOK_URL: ${{ secrets.DEV_WEBSITE_VERCEL_DEPLOY_HOOK_URL }}
-        run: |
-          if ! curl -sS -f -o /dev/null -X POST "$DEV_WEBSITE_VERCEL_DEPLOY_HOOK_URL"; then
-            echo "::warning title=developers.openai.com deploy hook failed::Vercel deploy hook POST failed for ${GITHUB_REF_NAME}"
-            exit 1
-          fi
-
   # Publish to npm using OIDC authentication.
   # July 31, 2025: https://github.blog/changelog/2025-07-31-npm-trusted-publishing-with-oidc-is-generally-available/
   # npm docs: https://docs.npmjs.com/trusted-publishers

.github/workflows/sdk.yml

@@ -24,7 +24,7 @@ jobs:
           node-version: 22
           cache: pnpm
 
-      - uses: dtolnay/rust-toolchain@1.92
+      - uses: dtolnay/rust-toolchain@1.90
 
       - name: build codex
         run: cargo build --bin codex

.github/workflows/shell-tool-mcp.yml

@@ -93,21 +93,15 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
-      - uses: dtolnay/rust-toolchain@1.92
+      - uses: dtolnay/rust-toolchain@1.90
         with:
           targets: ${{ matrix.target }}
 
-      - if: ${{ matrix.install_musl }}
-        name: Install Zig
-        uses: mlugg/setup-zig@v2
-        with:
-          version: 0.14.0
-
       - if: ${{ matrix.install_musl }}
         name: Install musl build dependencies
-        env:
-          TARGET: ${{ matrix.target }}
-        run: bash "${GITHUB_WORKSPACE}/.github/scripts/install-musl-build-tools.sh"
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y musl-tools pkg-config
 
       - name: Build exec server binaries
         run: cargo build --release --target ${{ matrix.target }} --bin codex-exec-mcp-server --bin codex-execve-wrapper
@@ -204,7 +198,7 @@ jobs:
         shell: bash
         run: |
           set -euo pipefail
-          git clone --depth 1 https://github.com/bolinfest/bash /tmp/bash
+          git clone --depth 1 https://github.com/bminor/bash /tmp/bash
           cd /tmp/bash
           git fetch --depth 1 origin a8a1c2fac029404d3f42cd39f5a20f24b6e4fe4b
           git checkout a8a1c2fac029404d3f42cd39f5a20f24b6e4fe4b
@@ -246,7 +240,7 @@ jobs:
         shell: bash
         run: |
           set -euo pipefail
-          git clone --depth 1 https://github.com/bolinfest/bash /tmp/bash
+          git clone --depth 1 https://github.com/bminor/bash /tmp/bash
           cd /tmp/bash
           git fetch --depth 1 origin a8a1c2fac029404d3f42cd39f5a20f24b6e4fe4b
           git checkout a8a1c2fac029404d3f42cd39f5a20f24b6e4fe4b

.gitignore

@@ -9,7 +9,6 @@ node_modules
 
 # build
 dist/
-bazel-*
 build/
 out/
 storybook-static/

.markdownlint-cli2.yaml

@@ -1,6 +0,0 @@
-config:
-  MD013:
-    line_length: 100
-
-globs:
-  - "docs/tui-chat-composer.md"

AGENTS.md

@@ -13,14 +13,12 @@ In the codex-rs folder where the rust code lives:
 - Use method references over closures when possible per https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_for_method_calls
 - When writing tests, prefer comparing the equality of entire objects over fields one by one.
 - When making a change that adds or changes an API, ensure that the documentation in the `docs/` folder is up to date if applicable.
-- If you change `ConfigToml` or nested config types, run `just write-config-schema` to update `codex-rs/core/config.schema.json`.
 
-Run `just fmt` (in `codex-rs` directory) automatically after you have finished making Rust code changes; do not ask for approval to run it. Additionally, run the tests:
+Run `just fmt` (in `codex-rs` directory) automatically after making Rust code changes; do not ask for approval to run it. Before finalizing a change to `codex-rs`, run `just fix -p <project>` (in `codex-rs` directory) to fix any linter issues in the code. Prefer scoping with `-p` to avoid slow workspace‑wide Clippy builds; only run `just fix` without `-p` if you changed shared crates. Additionally, run the tests:
 
 1. Run the test for the specific project that was changed. For example, if changes were made in `codex-rs/tui`, run `cargo test -p codex-tui`.
-2. Once those pass, if any changes were made in common, core, or protocol, run the complete test suite with `cargo test --all-features`. project-specific or individual tests can be run without asking the user, but do ask the user before running the complete test suite.
-
-Before finalizing a large change to `codex-rs`, run `just fix -p <project>` (in `codex-rs` directory) to fix any linter issues in the code. Prefer scoping with `-p` to avoid slow workspace‑wide Clippy builds; only run `just fix` without `-p` if you changed shared crates.
+2. Once those pass, if any changes were made in common, core, or protocol, run the complete test suite with `cargo test --all-features`.
+   When running interactively, ask the user before running `just fix` to finalize. `just fmt` does not require approval. project-specific or individual tests can be run without asking the user, but do ask the user before running the complete test suite.
 
 ## TUI style conventions
 
@@ -79,11 +77,11 @@ If you don’t have the tool:
 - Prefer deep equals comparisons whenever possible. Perform `assert_eq!()` on entire objects, rather than individual fields.
 - Avoid mutating process environment in tests; prefer passing environment-derived flags or dependencies from above.
 
-### Spawning workspace binaries in tests (Cargo vs Bazel)
+### Spawning workspace binaries in tests (Cargo vs Buck2)
 
 - Prefer `codex_utils_cargo_bin::cargo_bin("...")` over `assert_cmd::Command::cargo_bin(...)` or `escargot` when tests need to spawn first-party binaries.
-  - Under Bazel, binaries and resources may live under runfiles; use `codex_utils_cargo_bin::cargo_bin` to resolve absolute paths that remain stable after `chdir`.
-- When locating fixture files or test resources under Bazel, avoid `env!("CARGO_MANIFEST_DIR")`. Prefer `codex_utils_cargo_bin::find_resource!` so paths resolve correctly under both Cargo and Bazel runfiles.
+  - Under Buck2, `CARGO_BIN_EXE_*` may be project-relative (e.g. `buck-out/...`), which breaks if a test changes its working directory. `codex_utils_cargo_bin::cargo_bin` resolves to an absolute path first.
+- When locating fixture files under Buck2, avoid `env!("CARGO_MANIFEST_DIR")` (Buck codegen sets it to `"."`). Prefer deriving paths from `codex_utils_cargo_bin::buck_project_root()` when needed.
 
 ### Integration tests (core)
 

BUILD.bazel

@@ -1,19 +0,0 @@
-# We mark the local platform as glibc-compatible so that rust can grab a toolchain for us.
-# TODO(zbarsky): Upstream a better libc constraint into rules_rust.
-# We only enable this on linux though for sanity, and because it breaks remote execution.
-platform(
-    name = "local",
-    constraint_values = [
-        "@toolchains_llvm_bootstrapped//constraints/libc:gnu.2.28",
-    ],
-    parents = [
-        "@platforms//host",
-    ],
-)
-
-alias(
-    name = "rbe",
-    actual = "@rbe_platform",
-)
-
-exports_files(["AGENTS.md"])

MODULE.bazel

@@ -1,124 +0,0 @@
-bazel_dep(name = "platforms", version = "1.0.0")
-bazel_dep(name = "toolchains_llvm_bootstrapped", version = "0.3.1")
-archive_override(
-    module_name = "toolchains_llvm_bootstrapped",
-    integrity = "sha256-4/2h4tYSUSptxFVI9G50yJxWGOwHSeTeOGBlaLQBV8g=",
-    strip_prefix = "toolchains_llvm_bootstrapped-d20baf67e04d8e2887e3779022890d1dc5e6b948",
-    urls = ["https://github.com/cerisier/toolchains_llvm_bootstrapped/archive/d20baf67e04d8e2887e3779022890d1dc5e6b948.tar.gz"],
-)
-
-osx = use_extension("@toolchains_llvm_bootstrapped//toolchain/extension:osx.bzl", "osx")
-osx.framework(name = "ApplicationServices")
-osx.framework(name = "AppKit")
-osx.framework(name = "ColorSync")
-osx.framework(name = "CoreFoundation")
-osx.framework(name = "CoreGraphics")
-osx.framework(name = "CoreServices")
-osx.framework(name = "CoreText")
-osx.framework(name = "CFNetwork")
-osx.framework(name = "Foundation")
-osx.framework(name = "ImageIO")
-osx.framework(name = "Kernel")
-osx.framework(name = "OSLog")
-osx.framework(name = "Security")
-osx.framework(name = "SystemConfiguration")
-
-register_toolchains(
-    "@toolchains_llvm_bootstrapped//toolchain:all",
-)
-
-bazel_dep(name = "rules_cc", version = "0.2.16")
-bazel_dep(name = "rules_platform", version = "0.1.0")
-bazel_dep(name = "rules_rust", version = "0.68.1")
-single_version_override(
-    module_name = "rules_rust",
-    patch_strip = 1,
-    patches = [
-        "//patches:rules_rust.patch",
-        "//patches:rules_rust_windows_gnu.patch",
-        "//patches:rules_rust_musl.patch",
-    ],
-)
-
-RUST_TRIPLES = [
-    "aarch64-unknown-linux-musl",
-    "aarch64-apple-darwin",
-    "aarch64-pc-windows-gnullvm",
-    "x86_64-unknown-linux-musl",
-    "x86_64-apple-darwin",
-    "x86_64-pc-windows-gnullvm",
-]
-
-rust = use_extension("@rules_rust//rust:extensions.bzl", "rust")
-rust.toolchain(
-    edition = "2024",
-    extra_target_triples = RUST_TRIPLES,
-    versions = ["1.90.0"],
-)
-use_repo(rust, "rust_toolchains")
-
-register_toolchains("@rust_toolchains//:all")
-
-bazel_dep(name = "rules_rs", version = "0.0.23")
-
-crate = use_extension("@rules_rs//rs:extensions.bzl", "crate")
-crate.from_cargo(
-    cargo_lock = "//codex-rs:Cargo.lock",
-    cargo_toml = "//codex-rs:Cargo.toml",
-    platform_triples = RUST_TRIPLES,
-)
-
-bazel_dep(name = "openssl", version = "3.5.4.bcr.0")
-
-crate.annotation(
-    build_script_data = [
-        "@openssl//:gen_dir",
-    ],
-    build_script_env = {
-        "OPENSSL_DIR": "$(execpath @openssl//:gen_dir)",
-        "OPENSSL_NO_VENDOR": "1",
-        "OPENSSL_STATIC": "1",
-    },
-    crate = "openssl-sys",
-    data = ["@openssl//:gen_dir"],
-)
-
-inject_repo(crate, "openssl")
-
-# Fix readme inclusions
-crate.annotation(
-    crate = "windows-link",
-    patch_args = ["-p1"],
-    patches = [
-        "//patches:windows-link.patch",
-    ],
-)
-
-WINDOWS_IMPORT_LIB = """
-load("@rules_cc//cc:defs.bzl", "cc_import")
-
-cc_import(
-    name = "windows_import_lib",
-    static_library = glob(["lib/*.a"])[0],
-)
-"""
-
-crate.annotation(
-    additive_build_file_content = WINDOWS_IMPORT_LIB,
-    crate = "windows_x86_64_gnullvm",
-    gen_build_script = "off",
-    deps = [":windows_import_lib"],
-)
-crate.annotation(
-    additive_build_file_content = WINDOWS_IMPORT_LIB,
-    crate = "windows_aarch64_gnullvm",
-    gen_build_script = "off",
-    deps = [":windows_import_lib"],
-)
-use_repo(crate, "crates")
-
-rbe_platform_repository = use_repo_rule("//:rbe.bzl", "rbe_platform_repository")
-
-rbe_platform_repository(
-    name = "rbe_platform",
-)

announcement_tip.toml

@@ -10,7 +10,6 @@ from_date = "2024-10-01"
 to_date = "2024-10-15"
 target_app = "cli"
 
-# Test announcement only for local build version until 2026-01-10 excluded (past)
 [[announcements]]
 content = "This is a test announcement"
 version_regex = "^0\\.0\\.0$"

codex-cli/bin/codex.js

@@ -95,6 +95,7 @@ function detectPackageManager() {
     return "bun";
   }
 
+
   if (
     __dirname.includes(".bun/install/global") ||
     __dirname.includes(".bun\\install\\global")

codex-rs/BUILD.bazel

@@ -1 +0,0 @@
-

codex-rs/Cargo.toml

@@ -6,7 +6,6 @@ members = [
     "app-server",
     "app-server-protocol",
     "app-server-test-client",
-    "debug-client",
     "apply-patch",
     "arg0",
     "feedback",
@@ -27,7 +26,6 @@ members = [
     "login",
     "mcp-server",
     "mcp-types",
-    "network-proxy",
     "ollama",
     "process-hardening",
     "protocol",
@@ -36,6 +34,7 @@ members = [
     "stdio-to-uds",
     "otel",
     "tui",
+    "tui2",
     "utils/absolute-path",
     "utils/cargo-bin",
     "utils/git",
@@ -71,7 +70,6 @@ codex-arg0 = { path = "arg0" }
 codex-async-utils = { path = "async-utils" }
 codex-backend-client = { path = "backend-client" }
 codex-chatgpt = { path = "chatgpt" }
-codex-cli = { path = "cli"}
 codex-client = { path = "codex-client" }
 codex-common = { path = "common" }
 codex-core = { path = "core" }
@@ -93,6 +91,7 @@ codex-responses-api-proxy = { path = "responses-api-proxy" }
 codex-rmcp-client = { path = "rmcp-client" }
 codex-stdio-to-uds = { path = "stdio-to-uds" }
 codex-tui = { path = "tui" }
+codex-tui2 = { path = "tui2" }
 codex-utils-absolute-path = { path = "utils/absolute-path" }
 codex-utils-cache = { path = "utils/cache" }
 codex-utils-cargo-bin = { path = "utils/cargo-bin" }
@@ -121,12 +120,12 @@ axum = { version = "0.8", default-features = false }
 base64 = "0.22.1"
 bytes = "1.10.1"
 chardetng = "0.1.17"
-chrono = "0.4.43"
+chrono = "0.4.42"
 clap = "4"
 clap_complete = "4"
 color-eyre = "0.6.3"
 crossterm = "0.28.1"
-ctor = "0.6.3"
+ctor = "0.5.0"
 derive_more = "2"
 diffy = "0.4.2"
 dirs = "6"
@@ -135,15 +134,14 @@ dunce = "1.0.4"
 encoding_rs = "0.8.35"
 env-flags = "0.1.1"
 env_logger = "0.11.5"
+escargot = "0.5"
 eventsource-stream = "0.2.3"
 futures = { version = "0.3", default-features = false }
-globset = "0.4"
 http = "1.3.1"
 icu_decimal = "2.1"
 icu_locale_core = "2.1"
 icu_provider = { version = "2.1", features = ["sync"] }
 ignore = "0.4.23"
-indoc = "2.0"
 image = { version = "^0.25.9", default-features = false }
 include_dir = "0.7.4"
 indexmap = "2.12.0"
@@ -178,6 +176,7 @@ pretty_assertions = "1.4.1"
 pulldown-cmark = "0.10"
 rand = "0.9"
 ratatui = "0.29.0"
+ratatui-core = "0.1.0"
 ratatui-macros = "0.6.0"
 regex = "1.12.2"
 regex-lite = "0.1.8"
@@ -188,13 +187,11 @@ seccompiler = "0.5.0"
 sentry = "0.46.0"
 serde = "1"
 serde_json = "1"
-serde_path_to_error = "0.1.20"
 serde_with = "3.16"
 serde_yaml = "0.9"
 serial_test = "3.2.0"
 sha1 = "0.10.6"
 sha2 = "0.10"
-semver = "1.0"
 shlex = "1.3.0"
 similar = "2.7.0"
 socket2 = "0.6.1"
@@ -212,8 +209,7 @@ tiny_http = "0.12"
 tokio = "1"
 tokio-stream = "0.1.18"
 tokio-test = "0.4"
-tokio-tungstenite = { version = "0.28.0", features = ["proxy", "rustls-tls-native-roots"] }
-tokio-util = "0.7.18"
+tokio-util = "0.7.16"
 toml = "0.9.5"
 toml_edit = "0.24.0"
 tracing = "0.1.43"
@@ -222,9 +218,9 @@ tracing-subscriber = "0.3.22"
 tracing-test = "0.2.5"
 tree-sitter = "0.25.10"
 tree-sitter-bash = "0.25"
-zstd = "0.13"
 tree-sitter-highlight = "0.25.10"
 ts-rs = "11"
+tui-scrollbar = "0.2.1"
 uds_windows = "1.1.0"
 unicode-segmentation = "1.12.0"
 unicode-width = "0.2"
@@ -234,7 +230,7 @@ uuid = "1"
 vt100 = "0.16.2"
 walkdir = "2.5.0"
 webbrowser = "1.0"
-which = "8"
+which = "6"
 wildmatch = "2.6.1"
 
 wiremock = "0.6"
@@ -302,10 +298,6 @@ opt-level = 0
 # ratatui = { path = "../../ratatui" }
 crossterm = { git = "https://github.com/nornagon/crossterm", branch = "nornagon/color-query" }
 ratatui = { git = "https://github.com/nornagon/ratatui", branch = "nornagon-v0.29.0-patch" }
-tokio-tungstenite = { git = "https://github.com/JakkuSakura/tokio-tungstenite", rev = "2ae536b0de793f3ddf31fc2f22d445bf1ef2023d" }
 
 # Uncomment to debug local changes.
 # rmcp = { path = "../../rust-sdk/crates/rmcp" }
-
-[patch."ssh://git@github.com/JakkuSakura/tungstenite-rs.git"]
-tungstenite = { git = "https://github.com/JakkuSakura/tungstenite-rs", rev = "f514de8644821113e5d18a027d6d28a5c8cc0a6e" }

codex-rs/ansi-escape/BUILD.bazel

@@ -1,6 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "ansi-escape",
-    crate_name = "codex_ansi_escape",
-)

codex-rs/app-server-protocol/BUILD.bazel

@@ -1,6 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "app-server-protocol",
-    crate_name = "codex_app_server_protocol",
-)

codex-rs/app-server-protocol/src/protocol/common.rs

@@ -109,10 +109,6 @@ client_request_definitions! {
         params: v2::ThreadResumeParams,
         response: v2::ThreadResumeResponse,
     },
-    ThreadFork => "thread/fork" {
-        params: v2::ThreadForkParams,
-        response: v2::ThreadForkResponse,
-    },
     ThreadArchive => "thread/archive" {
         params: v2::ThreadArchiveParams,
         response: v2::ThreadArchiveResponse,
@@ -125,26 +121,10 @@ client_request_definitions! {
         params: v2::ThreadListParams,
         response: v2::ThreadListResponse,
     },
-    ThreadLoadedList => "thread/loaded/list" {
-        params: v2::ThreadLoadedListParams,
-        response: v2::ThreadLoadedListResponse,
-    },
-    ThreadRead => "thread/read" {
-        params: v2::ThreadReadParams,
-        response: v2::ThreadReadResponse,
-    },
     SkillsList => "skills/list" {
         params: v2::SkillsListParams,
         response: v2::SkillsListResponse,
     },
-    AppsList => "app/list" {
-        params: v2::AppsListParams,
-        response: v2::AppsListResponse,
-    },
-    SkillsConfigWrite => "skills/config/write" {
-        params: v2::SkillsConfigWriteParams,
-        response: v2::SkillsConfigWriteResponse,
-    },
     TurnStart => "turn/start" {
         params: v2::TurnStartParams,
         response: v2::TurnStartResponse,
@@ -162,22 +142,12 @@ client_request_definitions! {
         params: v2::ModelListParams,
         response: v2::ModelListResponse,
     },
-    /// EXPERIMENTAL - list collaboration mode presets.
-    CollaborationModeList => "collaborationMode/list" {
-        params: v2::CollaborationModeListParams,
-        response: v2::CollaborationModeListResponse,
-    },
 
     McpServerOauthLogin => "mcpServer/oauth/login" {
         params: v2::McpServerOauthLoginParams,
         response: v2::McpServerOauthLoginResponse,
     },
 
-    McpServerRefresh => "config/mcpServer/reload" {
-        params: #[ts(type = "undefined")] #[serde(skip_serializing_if = "Option::is_none")] Option<()>,
-        response: v2::McpServerRefreshResponse,
-    },
-
     McpServerStatusList => "mcpServerStatus/list" {
         params: v2::ListMcpServerStatusParams,
         response: v2::ListMcpServerStatusResponse,
@@ -214,12 +184,6 @@ client_request_definitions! {
         response: v2::CommandExecResponse,
     },
 
-    /// Run a single turn to completion without managing a thread lifecycle.
-    ExecRun => "exec/run" {
-        params: v2::ExecRunParams,
-        response: v2::ExecRunResponse,
-    },
-
     ConfigRead => "config/read" {
         params: v2::ConfigReadParams,
         response: v2::ConfigReadResponse,
@@ -233,11 +197,6 @@ client_request_definitions! {
         response: v2::ConfigWriteResponse,
     },
 
-    ConfigRequirementsRead => "configRequirements/read" {
-        params: #[ts(type = "undefined")] #[serde(skip_serializing_if = "Option::is_none")] Option<()>,
-        response: v2::ConfigRequirementsReadResponse,
-    },
-
     GetAccount => "account/read" {
         params: v2::GetAccountParams,
         response: v2::GetAccountResponse,
@@ -262,11 +221,6 @@ client_request_definitions! {
         params: v1::ResumeConversationParams,
         response: v1::ResumeConversationResponse,
     },
-    /// Fork a recorded Codex conversation into a new session.
-    ForkConversation {
-        params: v1::ForkConversationParams,
-        response: v1::ForkConversationResponse,
-    },
     ArchiveConversation {
         params: v1::ArchiveConversationParams,
         response: v1::ArchiveConversationResponse,
@@ -524,18 +478,6 @@ server_request_definitions! {
         response: v2::FileChangeRequestApprovalResponse,
     },
 
-    /// EXPERIMENTAL - Request input from the user for a tool call.
-    ToolRequestUserInput => "item/tool/requestUserInput" {
-        params: v2::ToolRequestUserInputParams,
-        response: v2::ToolRequestUserInputResponse,
-    },
-
-    /// Execute a dynamic tool call on the client.
-    DynamicToolCall => "item/tool/call" {
-        params: v2::DynamicToolCallParams,
-        response: v2::DynamicToolCallResponse,
-    },
-
     /// DEPRECATED APIs below
     /// Request to approve a patch.
     /// This request is used for Turns started via the legacy APIs (i.e. SendUserTurn, SendUserMessage).
@@ -602,7 +544,6 @@ server_notification_definitions! {
     ReasoningTextDelta => "item/reasoning/textDelta" (v2::ReasoningTextDeltaNotification),
     ContextCompacted => "thread/compacted" (v2::ContextCompactedNotification),
     DeprecationNotice => "deprecationNotice" (v2::DeprecationNoticeNotification),
-    ConfigWarning => "configWarning" (v2::ConfigWarningNotification),
 
     /// Notifies the user of world-writable directories on Windows, which cannot be protected by the sandbox.
     WindowsWorldWritableWarning => "windows/worldWritableWarning" (v2::WindowsWorldWritableWarningNotification),
@@ -770,22 +711,6 @@ mod tests {
         Ok(())
     }
 
-    #[test]
-    fn serialize_config_requirements_read() -> Result<()> {
-        let request = ClientRequest::ConfigRequirementsRead {
-            request_id: RequestId::Integer(1),
-            params: None,
-        };
-        assert_eq!(
-            json!({
-                "method": "configRequirements/read",
-                "id": 1,
-            }),
-            serde_json::to_value(&request)?,
-        );
-        Ok(())
-    }
-
     #[test]
     fn serialize_account_login_api_key() -> Result<()> {
         let request = ClientRequest::LoginAccount {
@@ -909,21 +834,4 @@ mod tests {
         );
         Ok(())
     }
-
-    #[test]
-    fn serialize_list_collaboration_modes() -> Result<()> {
-        let request = ClientRequest::CollaborationModeList {
-            request_id: RequestId::Integer(7),
-            params: v2::CollaborationModeListParams::default(),
-        };
-        assert_eq!(
-            json!({
-                "method": "collaborationMode/list",
-                "id": 7,
-                "params": {}
-            }),
-            serde_json::to_value(&request)?,
-        );
-        Ok(())
-    }
 }

codex-rs/app-server-protocol/src/protocol/thread_history.rs

@@ -197,12 +197,6 @@ impl ThreadHistoryBuilder {
         if !payload.message.trim().is_empty() {
             content.push(UserInput::Text {
                 text: payload.message.clone(),
-                text_elements: payload
-                    .text_elements
-                    .iter()
-                    .cloned()
-                    .map(Into::into)
-                    .collect(),
             });
         }
         if let Some(images) = &payload.images {
@@ -210,9 +204,6 @@ impl ThreadHistoryBuilder {
                 content.push(UserInput::Image { url: image.clone() });
             }
         }
-        for path in &payload.local_images {
-            content.push(UserInput::LocalImage { path: path.clone() });
-        }
         content
     }
 }
@@ -253,8 +244,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "First turn".into(),
                 images: Some(vec!["https://example.com/one.png".into()]),
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "Hi there".into(),
@@ -268,8 +257,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "Second turn".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "Reply two".into(),
@@ -290,7 +277,6 @@ mod tests {
                 content: vec![
                     UserInput::Text {
                         text: "First turn".into(),
-                        text_elements: Vec::new(),
                     },
                     UserInput::Image {
                         url: "https://example.com/one.png".into(),
@@ -322,8 +308,7 @@ mod tests {
             ThreadItem::UserMessage {
                 id: "item-4".into(),
                 content: vec![UserInput::Text {
-                    text: "Second turn".into(),
-                    text_elements: Vec::new(),
+                    text: "Second turn".into()
                 }],
             }
         );
@@ -342,8 +327,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "Turn start".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentReasoning(AgentReasoningEvent {
                 text: "first summary".into(),
@@ -388,8 +371,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "Please do the thing".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "Working...".into(),
@@ -400,8 +381,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "Let's try again".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "Second attempt complete.".into(),
@@ -419,8 +398,7 @@ mod tests {
             ThreadItem::UserMessage {
                 id: "item-1".into(),
                 content: vec![UserInput::Text {
-                    text: "Please do the thing".into(),
-                    text_elements: Vec::new(),
+                    text: "Please do the thing".into()
                 }],
             }
         );
@@ -440,8 +418,7 @@ mod tests {
             ThreadItem::UserMessage {
                 id: "item-3".into(),
                 content: vec![UserInput::Text {
-                    text: "Let's try again".into(),
-                    text_elements: Vec::new(),
+                    text: "Let's try again".into()
                 }],
             }
         );
@@ -460,8 +437,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "First".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "A1".into(),
@@ -469,8 +444,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "Second".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "A2".into(),
@@ -479,8 +452,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "Third".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "A3".into(),
@@ -498,7 +469,6 @@ mod tests {
                         id: "item-1".into(),
                         content: vec![UserInput::Text {
                             text: "First".into(),
-                            text_elements: Vec::new(),
                         }],
                     },
                     ThreadItem::AgentMessage {
@@ -516,7 +486,6 @@ mod tests {
                         id: "item-3".into(),
                         content: vec![UserInput::Text {
                             text: "Third".into(),
-                            text_elements: Vec::new(),
                         }],
                     },
                     ThreadItem::AgentMessage {
@@ -535,8 +504,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "One".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "A1".into(),
@@ -544,8 +511,6 @@ mod tests {
             EventMsg::UserMessage(UserMessageEvent {
                 message: "Two".into(),
                 images: None,
-                text_elements: Vec::new(),
-                local_images: Vec::new(),
             }),
             EventMsg::AgentMessage(AgentMessageEvent {
                 message: "A2".into(),

codex-rs/app-server-protocol/src/protocol/v1.rs

@@ -16,8 +16,6 @@ use codex_protocol::protocol::ReviewDecision;
 use codex_protocol::protocol::SandboxPolicy;
 use codex_protocol::protocol::SessionSource;
 use codex_protocol::protocol::TurnAbortReason;
-use codex_protocol::user_input::ByteRange as CoreByteRange;
-use codex_protocol::user_input::TextElement as CoreTextElement;
 use codex_utils_absolute_path::AbsolutePathBuf;
 use schemars::JsonSchema;
 use serde::Deserialize;
@@ -85,15 +83,6 @@ pub struct ResumeConversationResponse {
     pub rollout_path: PathBuf,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-pub struct ForkConversationResponse {
-    pub conversation_id: ThreadId,
-    pub model: String,
-    pub initial_messages: Option<Vec<EventMsg>>,
-    pub rollout_path: PathBuf,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(untagged)]
 pub enum GetConversationSummaryParams {
@@ -128,7 +117,6 @@ pub struct ConversationSummary {
     pub path: PathBuf,
     pub preview: String,
     pub timestamp: Option<String>,
-    pub updated_at: Option<String>,
     pub model_provider: String,
     pub cwd: PathBuf,
     pub cli_version: String,
@@ -160,14 +148,6 @@ pub struct ResumeConversationParams {
     pub overrides: Option<NewConversationParams>,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-pub struct ForkConversationParams {
-    pub path: Option<PathBuf>,
-    pub conversation_id: Option<ThreadId>,
-    pub overrides: Option<NewConversationParams>,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 pub struct AddConversationSubscriptionResponse {
@@ -447,71 +427,9 @@ pub struct RemoveConversationListenerParams {
 #[serde(rename_all = "camelCase")]
 #[serde(tag = "type", content = "data")]
 pub enum InputItem {
-    Text {
-        text: String,
-        /// UI-defined spans within `text` used to render or persist special elements.
-        #[serde(default)]
-        text_elements: Vec<V1TextElement>,
-    },
-    Image {
-        image_url: String,
-    },
-    LocalImage {
-        path: PathBuf,
-    },
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, Eq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(rename = "ByteRange")]
-pub struct V1ByteRange {
-    /// Start byte offset (inclusive) within the UTF-8 text buffer.
-    pub start: usize,
-    /// End byte offset (exclusive) within the UTF-8 text buffer.
-    pub end: usize,
-}
-
-impl From<CoreByteRange> for V1ByteRange {
-    fn from(value: CoreByteRange) -> Self {
-        Self {
-            start: value.start,
-            end: value.end,
-        }
-    }
-}
-
-impl From<V1ByteRange> for CoreByteRange {
-    fn from(value: V1ByteRange) -> Self {
-        Self {
-            start: value.start,
-            end: value.end,
-        }
-    }
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(rename = "TextElement")]
-pub struct V1TextElement {
-    /// Byte range in the parent `text` buffer that this element occupies.
-    pub byte_range: V1ByteRange,
-    /// Optional human-readable placeholder for the element, displayed in the UI.
-    pub placeholder: Option<String>,
-}
-
-impl From<CoreTextElement> for V1TextElement {
-    fn from(value: CoreTextElement) -> Self {
-        Self {
-            byte_range: value.byte_range.into(),
-            placeholder: value._placeholder_for_conversion_only().map(str::to_string),
-        }
-    }
-}
-
-impl From<V1TextElement> for CoreTextElement {
-    fn from(value: V1TextElement) -> Self {
-        Self::new(value.byte_range.into(), value.placeholder)
-    }
+    Text { text: String },
+    Image { image_url: String },
+    LocalImage { path: PathBuf },
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]

codex-rs/app-server-protocol/src/protocol/v2.rs

@@ -4,14 +4,10 @@ use std::path::PathBuf;
 use crate::protocol::common::AuthMode;
 use codex_protocol::account::PlanType;
 use codex_protocol::approvals::ExecPolicyAmendment as CoreExecPolicyAmendment;
-use codex_protocol::config_types::CollaborationMode;
-use codex_protocol::config_types::CollaborationModeMask;
 use codex_protocol::config_types::ForcedLoginMethod;
-use codex_protocol::config_types::Personality;
 use codex_protocol::config_types::ReasoningSummary;
 use codex_protocol::config_types::SandboxMode as CoreSandboxMode;
 use codex_protocol::config_types::Verbosity;
-use codex_protocol::config_types::WebSearchMode;
 use codex_protocol::items::AgentMessageContent as CoreAgentMessageContent;
 use codex_protocol::items::TurnItem as CoreTurnItem;
 use codex_protocol::models::ResponseItem;
@@ -19,7 +15,6 @@ use codex_protocol::openai_models::ReasoningEffort;
 use codex_protocol::parse_command::ParsedCommand as CoreParsedCommand;
 use codex_protocol::plan_tool::PlanItemArg as CorePlanItemArg;
 use codex_protocol::plan_tool::StepStatus as CorePlanStepStatus;
-use codex_protocol::protocol::AgentStatus as CoreAgentStatus;
 use codex_protocol::protocol::AskForApproval as CoreAskForApproval;
 use codex_protocol::protocol::CodexErrorInfo as CoreCodexErrorInfo;
 use codex_protocol::protocol::CreditsSnapshot as CoreCreditsSnapshot;
@@ -28,14 +23,10 @@ use codex_protocol::protocol::RateLimitSnapshot as CoreRateLimitSnapshot;
 use codex_protocol::protocol::RateLimitWindow as CoreRateLimitWindow;
 use codex_protocol::protocol::SessionSource as CoreSessionSource;
 use codex_protocol::protocol::SkillErrorInfo as CoreSkillErrorInfo;
-use codex_protocol::protocol::SkillInterface as CoreSkillInterface;
 use codex_protocol::protocol::SkillMetadata as CoreSkillMetadata;
 use codex_protocol::protocol::SkillScope as CoreSkillScope;
-use codex_protocol::protocol::SubAgentSource as CoreSubAgentSource;
 use codex_protocol::protocol::TokenUsage as CoreTokenUsage;
 use codex_protocol::protocol::TokenUsageInfo as CoreTokenUsageInfo;
-use codex_protocol::user_input::ByteRange as CoreByteRange;
-use codex_protocol::user_input::TextElement as CoreTextElement;
 use codex_protocol::user_input::UserInput as CoreUserInput;
 use codex_utils_absolute_path::AbsolutePathBuf;
 use mcp_types::ContentBlock as McpContentBlock;
@@ -220,6 +211,7 @@ v2_enum_from_core!(
     }
 );
 
+// TODO(mbolin): Support in-repo layer.
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
 #[serde(tag = "type", rename_all = "camelCase")]
 #[ts(tag = "type")]
@@ -325,15 +317,6 @@ pub struct ToolsV2 {
     pub view_image: Option<bool>,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct DynamicToolSpec {
-    pub name: String,
-    pub description: String,
-    pub input_schema: JsonValue,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "snake_case")]
 #[ts(export_to = "v2/")]
@@ -344,7 +327,6 @@ pub struct ProfileV2 {
     pub model_reasoning_effort: Option<ReasoningEffort>,
     pub model_reasoning_summary: Option<ReasoningSummary>,
     pub model_verbosity: Option<Verbosity>,
-    pub web_search: Option<WebSearchMode>,
     pub chatgpt_base_url: Option<String>,
     #[serde(default, flatten)]
     pub additional: HashMap<String, JsonValue>,
@@ -373,7 +355,6 @@ pub struct Config {
     pub sandbox_workspace_write: Option<SandboxWorkspaceWrite>,
     pub forced_chatgpt_workspace_id: Option<String>,
     pub forced_login_method: Option<ForcedLoginMethod>,
-    pub web_search: Option<WebSearchMode>,
     pub tools: Option<ToolsV2>,
     pub profile: Option<String>,
     #[serde(default)]
@@ -404,8 +385,6 @@ pub struct ConfigLayer {
     pub name: ConfigLayerSource,
     pub version: String,
     pub config: JsonValue,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub disabled_reason: Option<String>,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
@@ -462,10 +441,6 @@ pub enum ConfigWriteErrorCode {
 pub struct ConfigReadParams {
     #[serde(default)]
     pub include_layers: bool,
-    /// Optional working directory to resolve project config layers. If specified,
-    /// return the effective config as seen from that directory (i.e., including any
-    /// project layers between `cwd` and the project/repo root).
-    pub cwd: Option<String>,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
@@ -478,22 +453,6 @@ pub struct ConfigReadResponse {
     pub layers: Option<Vec<ConfigLayer>>,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ConfigRequirements {
-    pub allowed_approval_policies: Option<Vec<AskForApproval>>,
-    pub allowed_sandbox_modes: Option<Vec<SandboxMode>>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ConfigRequirementsReadResponse {
-    /// Null if no requirements are configured (e.g. no requirements.toml/MDM entries).
-    pub requirements: Option<ConfigRequirements>,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -711,7 +670,6 @@ pub enum SessionSource {
     VsCode,
     Exec,
     AppServer,
-    SubAgent(CoreSubAgentSource),
     #[serde(other)]
     Unknown,
 }
@@ -723,7 +681,7 @@ impl From<CoreSessionSource> for SessionSource {
             CoreSessionSource::VSCode => SessionSource::VsCode,
             CoreSessionSource::Exec => SessionSource::Exec,
             CoreSessionSource::Mcp => SessionSource::AppServer,
-            CoreSessionSource::SubAgent(sub) => SessionSource::SubAgent(sub),
+            CoreSessionSource::SubAgent(_) => SessionSource::Unknown,
             CoreSessionSource::Unknown => SessionSource::Unknown,
         }
     }
@@ -736,7 +694,6 @@ impl From<SessionSource> for CoreSessionSource {
             SessionSource::VsCode => CoreSessionSource::VSCode,
             SessionSource::Exec => CoreSessionSource::Exec,
             SessionSource::AppServer => CoreSessionSource::Mcp,
-            SessionSource::SubAgent(sub) => CoreSessionSource::SubAgent(sub),
             SessionSource::Unknown => CoreSessionSource::Unknown,
         }
     }
@@ -914,8 +871,6 @@ pub struct Model {
     pub description: String,
     pub supported_reasoning_efforts: Vec<ReasoningEffortOption>,
     pub default_reasoning_effort: ReasoningEffort,
-    #[serde(default)]
-    pub supports_personality: bool,
     // Only one model should be marked as default.
     pub is_default: bool,
 }
@@ -938,20 +893,6 @@ pub struct ModelListResponse {
     pub next_cursor: Option<String>,
 }
 
-/// EXPERIMENTAL - list collaboration mode presets.
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Default, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct CollaborationModeListParams {}
-
-/// EXPERIMENTAL - collaboration mode presets response.
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct CollaborationModeListResponse {
-    pub data: Vec<CollaborationModeMask>,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -983,49 +924,6 @@ pub struct ListMcpServerStatusResponse {
     pub next_cursor: Option<String>,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Default, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct AppsListParams {
-    /// Opaque pagination cursor returned by a previous call.
-    pub cursor: Option<String>,
-    /// Optional page size; defaults to a reasonable server-side value.
-    pub limit: Option<u32>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct AppInfo {
-    pub id: String,
-    pub name: String,
-    pub description: Option<String>,
-    pub logo_url: Option<String>,
-    pub install_url: Option<String>,
-    #[serde(default)]
-    pub is_accessible: bool,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct AppsListResponse {
-    pub data: Vec<AppInfo>,
-    /// Opaque cursor to pass to the next call to continue after the last item.
-    /// If None, there are no more items to return.
-    pub next_cursor: Option<String>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct McpServerRefreshParams {}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct McpServerRefreshResponse {}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -1083,35 +981,6 @@ pub struct CommandExecResponse {
     pub stderr: String,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ExecRunParams {
-    pub input: Vec<UserInput>,
-    pub model: Option<String>,
-    pub model_provider: Option<String>,
-    pub cwd: Option<String>,
-    pub effort: Option<ReasoningEffort>,
-    pub summary: Option<ReasoningSummary>,
-    pub collaboration_mode: Option<CollaborationMode>,
-    pub personality: Option<Personality>,
-    pub config: Option<HashMap<String, JsonValue>>,
-    pub base_instructions: Option<String>,
-    pub developer_instructions: Option<String>,
-    pub output_schema: Option<JsonValue>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ExecRunResponse {
-    pub thread_id: String,
-    pub turn_id: String,
-    pub status: TurnStatus,
-    pub last_agent_message: Option<String>,
-    pub error: Option<TurnError>,
-}
-
 // === Threads, Turns, and Items ===
 // Thread APIs
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Default, JsonSchema, TS)]
@@ -1126,9 +995,6 @@ pub struct ThreadStartParams {
     pub config: Option<HashMap<String, JsonValue>>,
     pub base_instructions: Option<String>,
     pub developer_instructions: Option<String>,
-    pub personality: Option<Personality>,
-    pub ephemeral: Option<bool>,
-    pub dynamic_tools: Option<Vec<DynamicToolSpec>>,
     /// If true, opt into emitting raw response items on the event stream.
     ///
     /// This is for internal use only (e.g. Codex Cloud).
@@ -1183,7 +1049,6 @@ pub struct ThreadResumeParams {
     pub config: Option<HashMap<String, serde_json::Value>>,
     pub base_instructions: Option<String>,
     pub developer_instructions: Option<String>,
-    pub personality: Option<Personality>,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
@@ -1199,47 +1064,6 @@ pub struct ThreadResumeResponse {
     pub reasoning_effort: Option<ReasoningEffort>,
 }
 
-#[derive(Serialize, Deserialize, Debug, Default, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-/// There are two ways to fork a thread:
-/// 1. By thread_id: load the thread from disk by thread_id and fork it into a new thread.
-/// 2. By path: load the thread from disk by path and fork it into a new thread.
-///
-/// If using path, the thread_id param will be ignored.
-///
-/// Prefer using thread_id whenever possible.
-pub struct ThreadForkParams {
-    pub thread_id: String,
-
-    /// [UNSTABLE] Specify the rollout path to fork from.
-    /// If specified, the thread_id param will be ignored.
-    pub path: Option<PathBuf>,
-
-    /// Configuration overrides for the forked thread, if any.
-    pub model: Option<String>,
-    pub model_provider: Option<String>,
-    pub cwd: Option<String>,
-    pub approval_policy: Option<AskForApproval>,
-    pub sandbox: Option<SandboxMode>,
-    pub config: Option<HashMap<String, serde_json::Value>>,
-    pub base_instructions: Option<String>,
-    pub developer_instructions: Option<String>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ThreadForkResponse {
-    pub thread: Thread,
-    pub model: String,
-    pub model_provider: String,
-    pub cwd: PathBuf,
-    pub approval_policy: AskForApproval,
-    pub sandbox: SandboxPolicy,
-    pub reasoning_effort: Option<ReasoningEffort>,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -1284,22 +1108,9 @@ pub struct ThreadListParams {
     pub cursor: Option<String>,
     /// Optional page size; defaults to a reasonable server-side value.
     pub limit: Option<u32>,
-    /// Optional sort key; defaults to created_at.
-    pub sort_key: Option<ThreadSortKey>,
     /// Optional provider filter; when set, only sessions recorded under these
     /// providers are returned. When present but empty, includes all providers.
     pub model_providers: Option<Vec<String>>,
-    /// Optional archived filter; when set to true, only archived threads are returned.
-    /// If false or null, only non-archived threads are returned.
-    pub archived: Option<bool>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "snake_case")]
-#[ts(export_to = "v2/")]
-pub enum ThreadSortKey {
-    CreatedAt,
-    UpdatedAt,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
@@ -1312,44 +1123,6 @@ pub struct ThreadListResponse {
     pub next_cursor: Option<String>,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Default, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ThreadLoadedListParams {
-    /// Opaque pagination cursor returned by a previous call.
-    pub cursor: Option<String>,
-    /// Optional page size; defaults to no limit.
-    pub limit: Option<u32>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ThreadLoadedListResponse {
-    /// Thread ids for sessions currently loaded in memory.
-    pub data: Vec<String>,
-    /// Opaque cursor to pass to the next call to continue after the last item.
-    /// if None, there are no more items to return.
-    pub next_cursor: Option<String>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ThreadReadParams {
-    pub thread_id: String,
-    /// When true, include turns and their items from rollout history.
-    #[serde(default)]
-    pub include_turns: bool,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ThreadReadResponse {
-    pub thread: Thread,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -1387,34 +1160,11 @@ pub enum SkillScope {
 pub struct SkillMetadata {
     pub name: String,
     pub description: String,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
     #[ts(optional)]
-    /// Legacy short_description from SKILL.md. Prefer SKILL.toml interface.short_description.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
     pub short_description: Option<String>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    #[ts(optional)]
-    pub interface: Option<SkillInterface>,
     pub path: PathBuf,
     pub scope: SkillScope,
-    pub enabled: bool,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct SkillInterface {
-    #[ts(optional)]
-    pub display_name: Option<String>,
-    #[ts(optional)]
-    pub short_description: Option<String>,
-    #[ts(optional)]
-    pub icon_small: Option<PathBuf>,
-    #[ts(optional)]
-    pub icon_large: Option<PathBuf>,
-    #[ts(optional)]
-    pub brand_color: Option<String>,
-    #[ts(optional)]
-    pub default_prompt: Option<String>,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
@@ -1434,44 +1184,14 @@ pub struct SkillsListEntry {
     pub errors: Vec<SkillErrorInfo>,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct SkillsConfigWriteParams {
-    pub path: PathBuf,
-    pub enabled: bool,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct SkillsConfigWriteResponse {
-    pub effective_enabled: bool,
-}
-
 impl From<CoreSkillMetadata> for SkillMetadata {
     fn from(value: CoreSkillMetadata) -> Self {
         Self {
             name: value.name,
             description: value.description,
             short_description: value.short_description,
-            interface: value.interface.map(SkillInterface::from),
             path: value.path,
             scope: value.scope.into(),
-            enabled: true,
-        }
-    }
-}
-
-impl From<CoreSkillInterface> for SkillInterface {
-    fn from(value: CoreSkillInterface) -> Self {
-        Self {
-            display_name: value.display_name,
-            short_description: value.short_description,
-            brand_color: value.brand_color,
-            default_prompt: value.default_prompt,
-            icon_small: value.icon_small,
-            icon_large: value.icon_large,
         }
     }
 }
@@ -1508,11 +1228,8 @@ pub struct Thread {
     /// Unix timestamp (in seconds) when the thread was created.
     #[ts(type = "number")]
     pub created_at: i64,
-    /// Unix timestamp (in seconds) when the thread was last updated.
-    #[ts(type = "number")]
-    pub updated_at: i64,
     /// [UNSTABLE] Path to the thread on disk.
-    pub path: Option<PathBuf>,
+    pub path: PathBuf,
     /// Working directory captured for the thread.
     pub cwd: PathBuf,
     /// Version of the CLI that created the thread.
@@ -1521,8 +1238,7 @@ pub struct Thread {
     pub source: SessionSource,
     /// Optional Git metadata captured when the thread was created.
     pub git_info: Option<GitInfo>,
-    /// Only populated on `thread/resume`, `thread/rollback`, `thread/fork`, and `thread/read`
-    /// (when `includeTurns` is true) responses.
+    /// Only populated on `thread/resume` and `thread/rollback` responses.
     /// For all other responses and notifications returning a Thread,
     /// the turns field will be an empty list.
     pub turns: Vec<Turn>,
@@ -1598,7 +1314,7 @@ impl From<CoreTokenUsage> for TokenUsageBreakdown {
 #[ts(export_to = "v2/")]
 pub struct Turn {
     pub id: String,
-    /// Only populated on a `thread/resume` or `thread/fork` response.
+    /// Only populated on a `thread/resume` response.
     /// For all other responses and notifications returning a Turn,
     /// the items field will be an empty list.
     pub items: Vec<ThreadItem>,
@@ -1659,14 +1375,8 @@ pub struct TurnStartParams {
     pub effort: Option<ReasoningEffort>,
     /// Override the reasoning summary for this turn and subsequent turns.
     pub summary: Option<ReasoningSummary>,
-    /// Override the personality for this turn and subsequent turns.
-    pub personality: Option<Personality>,
     /// Optional JSON Schema used to constrain the final assistant message for this turn.
     pub output_schema: Option<JsonValue>,
-
-    /// EXPERIMENTAL - set a pre-set collaboration mode.
-    /// Takes precedence over model, reasoning_effort, and developer instructions if set.
-    pub collaboration_mode: Option<CollaborationMode>,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
@@ -1742,110 +1452,22 @@ pub struct TurnInterruptParams {
 pub struct TurnInterruptResponse {}
 
 // User input types
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ByteRange {
-    pub start: usize,
-    pub end: usize,
-}
-
-impl From<CoreByteRange> for ByteRange {
-    fn from(value: CoreByteRange) -> Self {
-        Self {
-            start: value.start,
-            end: value.end,
-        }
-    }
-}
-
-impl From<ByteRange> for CoreByteRange {
-    fn from(value: ByteRange) -> Self {
-        Self {
-            start: value.start,
-            end: value.end,
-        }
-    }
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct TextElement {
-    /// Byte range in the parent `text` buffer that this element occupies.
-    pub byte_range: ByteRange,
-    /// Optional human-readable placeholder for the element, displayed in the UI.
-    placeholder: Option<String>,
-}
-
-impl TextElement {
-    pub fn new(byte_range: ByteRange, placeholder: Option<String>) -> Self {
-        Self {
-            byte_range,
-            placeholder,
-        }
-    }
-
-    pub fn set_placeholder(&mut self, placeholder: Option<String>) {
-        self.placeholder = placeholder;
-    }
-
-    pub fn placeholder(&self) -> Option<&str> {
-        self.placeholder.as_deref()
-    }
-}
-
-impl From<CoreTextElement> for TextElement {
-    fn from(value: CoreTextElement) -> Self {
-        Self::new(
-            value.byte_range.into(),
-            value._placeholder_for_conversion_only().map(str::to_string),
-        )
-    }
-}
-
-impl From<TextElement> for CoreTextElement {
-    fn from(value: TextElement) -> Self {
-        Self::new(value.byte_range.into(), value.placeholder)
-    }
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(tag = "type", rename_all = "camelCase")]
 #[ts(tag = "type")]
 #[ts(export_to = "v2/")]
 pub enum UserInput {
-    Text {
-        text: String,
-        /// UI-defined spans within `text` used to render or persist special elements.
-        #[serde(default)]
-        text_elements: Vec<TextElement>,
-    },
-    Image {
-        url: String,
-    },
-    LocalImage {
-        path: PathBuf,
-    },
-    Skill {
-        name: String,
-        path: PathBuf,
-    },
+    Text { text: String },
+    Image { url: String },
+    LocalImage { path: PathBuf },
 }
 
 impl UserInput {
     pub fn into_core(self) -> CoreUserInput {
         match self {
-            UserInput::Text {
-                text,
-                text_elements,
-            } => CoreUserInput::Text {
-                text,
-                text_elements: text_elements.into_iter().map(Into::into).collect(),
-            },
+            UserInput::Text { text } => CoreUserInput::Text { text },
             UserInput::Image { url } => CoreUserInput::Image { image_url: url },
             UserInput::LocalImage { path } => CoreUserInput::LocalImage { path },
-            UserInput::Skill { name, path } => CoreUserInput::Skill { name, path },
         }
     }
 }
@@ -1853,16 +1475,9 @@ impl UserInput {
 impl From<CoreUserInput> for UserInput {
     fn from(value: CoreUserInput) -> Self {
         match value {
-            CoreUserInput::Text {
-                text,
-                text_elements,
-            } => UserInput::Text {
-                text,
-                text_elements: text_elements.into_iter().map(Into::into).collect(),
-            },
+            CoreUserInput::Text { text } => UserInput::Text { text },
             CoreUserInput::Image { image_url } => UserInput::Image { url: image_url },
             CoreUserInput::LocalImage { path } => UserInput::LocalImage { path },
-            CoreUserInput::Skill { name, path } => UserInput::Skill { name, path },
             _ => unreachable!("unsupported user input variant"),
         }
     }
@@ -1934,25 +1549,6 @@ pub enum ThreadItem {
     },
     #[serde(rename_all = "camelCase")]
     #[ts(rename_all = "camelCase")]
-    CollabAgentToolCall {
-        /// Unique identifier for this collab tool call.
-        id: String,
-        /// Name of the collab tool that was invoked.
-        tool: CollabAgentTool,
-        /// Current status of the collab tool call.
-        status: CollabAgentToolCallStatus,
-        /// Thread ID of the agent issuing the collab request.
-        sender_thread_id: String,
-        /// Thread ID of the receiving agent, when applicable. In case of spawn operation,
-        /// this corresponds to the newly spawned agent.
-        receiver_thread_ids: Vec<String>,
-        /// Prompt text sent as part of the collab tool call, when available.
-        prompt: Option<String>,
-        /// Last known status of the target agents, when available.
-        agents_states: HashMap<String, CollabAgentState>,
-    },
-    #[serde(rename_all = "camelCase")]
-    #[ts(rename_all = "camelCase")]
     WebSearch { id: String, query: String },
     #[serde(rename_all = "camelCase")]
     #[ts(rename_all = "camelCase")]
@@ -2005,16 +1601,6 @@ pub enum CommandExecutionStatus {
     Declined,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub enum CollabAgentTool {
-    SpawnAgent,
-    SendInput,
-    Wait,
-    CloseAgent,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -2053,66 +1639,6 @@ pub enum McpToolCallStatus {
     Failed,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub enum CollabAgentToolCallStatus {
-    InProgress,
-    Completed,
-    Failed,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub enum CollabAgentStatus {
-    PendingInit,
-    Running,
-    Completed,
-    Errored,
-    Shutdown,
-    NotFound,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct CollabAgentState {
-    pub status: CollabAgentStatus,
-    pub message: Option<String>,
-}
-
-impl From<CoreAgentStatus> for CollabAgentState {
-    fn from(value: CoreAgentStatus) -> Self {
-        match value {
-            CoreAgentStatus::PendingInit => Self {
-                status: CollabAgentStatus::PendingInit,
-                message: None,
-            },
-            CoreAgentStatus::Running => Self {
-                status: CollabAgentStatus::Running,
-                message: None,
-            },
-            CoreAgentStatus::Completed(message) => Self {
-                status: CollabAgentStatus::Completed,
-                message,
-            },
-            CoreAgentStatus::Errored(message) => Self {
-                status: CollabAgentStatus::Errored,
-                message: Some(message),
-            },
-            CoreAgentStatus::Shutdown => Self {
-                status: CollabAgentStatus::Shutdown,
-                message: None,
-            },
-            CoreAgentStatus::NotFound => Self {
-                status: CollabAgentStatus::NotFound,
-                message: None,
-            },
-        }
-    }
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -2370,18 +1896,6 @@ pub struct CommandExecutionRequestApprovalParams {
     pub item_id: String,
     /// Optional explanatory reason (e.g. request for network access).
     pub reason: Option<String>,
-    /// The command to be executed.
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    #[ts(optional)]
-    pub command: Option<String>,
-    /// The command's working directory.
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    #[ts(optional)]
-    pub cwd: Option<PathBuf>,
-    /// Best-effort parsed command actions for friendly display.
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    #[ts(optional)]
-    pub command_actions: Option<Vec<CommandAction>>,
     /// Optional proposed execpolicy amendment to allow similar commands without prompting.
     pub proposed_execpolicy_amendment: Option<ExecPolicyAmendment>,
 }
@@ -2413,72 +1927,6 @@ pub struct FileChangeRequestApprovalResponse {
     pub decision: FileChangeApprovalDecision,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct DynamicToolCallParams {
-    pub thread_id: String,
-    pub turn_id: String,
-    pub call_id: String,
-    pub tool: String,
-    pub arguments: JsonValue,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct DynamicToolCallResponse {
-    pub output: String,
-    pub success: bool,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-/// EXPERIMENTAL. Defines a single selectable option for request_user_input.
-pub struct ToolRequestUserInputOption {
-    pub label: String,
-    pub description: String,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-/// EXPERIMENTAL. Represents one request_user_input question and its optional options.
-pub struct ToolRequestUserInputQuestion {
-    pub id: String,
-    pub header: String,
-    pub question: String,
-    pub options: Option<Vec<ToolRequestUserInputOption>>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-/// EXPERIMENTAL. Params sent with a request_user_input event.
-pub struct ToolRequestUserInputParams {
-    pub thread_id: String,
-    pub turn_id: String,
-    pub item_id: String,
-    pub questions: Vec<ToolRequestUserInputQuestion>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-/// EXPERIMENTAL. Captures a user's answer to a request_user_input question.
-pub struct ToolRequestUserInputAnswer {
-    pub answers: Vec<String>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-/// EXPERIMENTAL. Response payload mapping question ids to answers.
-pub struct ToolRequestUserInputResponse {
-    pub answers: HashMap<String, ToolRequestUserInputAnswer>,
-}
-
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -2568,42 +2016,6 @@ pub struct DeprecationNoticeNotification {
     pub details: Option<String>,
 }
 
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct TextPosition {
-    /// 1-based line number.
-    pub line: usize,
-    /// 1-based column number (in Unicode scalar values).
-    pub column: usize,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct TextRange {
-    pub start: TextPosition,
-    pub end: TextPosition,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export_to = "v2/")]
-pub struct ConfigWarningNotification {
-    /// Concise summary of the warning.
-    pub summary: String,
-    /// Optional extra guidance or error details.
-    pub details: Option<String>,
-    /// Optional path to the config file that triggered the warning.
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    #[ts(optional)]
-    pub path: Option<String>,
-    /// Optional range for the error location inside the config file.
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    #[ts(optional)]
-    pub range: Option<TextRange>,
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -2644,7 +2056,6 @@ mod tests {
             content: vec![
                 CoreUserInput::Text {
                     text: "hello".to_string(),
-                    text_elements: Vec::new(),
                 },
                 CoreUserInput::Image {
                     image_url: "https://example.com/image.png".to_string(),
@@ -2652,10 +2063,6 @@ mod tests {
                 CoreUserInput::LocalImage {
                     path: PathBuf::from("local/image.png"),
                 },
-                CoreUserInput::Skill {
-                    name: "skill-creator".to_string(),
-                    path: PathBuf::from("/repo/.codex/skills/skill-creator/SKILL.md"),
-                },
             ],
         });
 
@@ -2666,7 +2073,6 @@ mod tests {
                 content: vec![
                     UserInput::Text {
                         text: "hello".to_string(),
-                        text_elements: Vec::new(),
                     },
                     UserInput::Image {
                         url: "https://example.com/image.png".to_string(),
@@ -2674,10 +2080,6 @@ mod tests {
                     UserInput::LocalImage {
                         path: PathBuf::from("local/image.png"),
                     },
-                    UserInput::Skill {
-                        name: "skill-creator".to_string(),
-                        path: PathBuf::from("/repo/.codex/skills/skill-creator/SKILL.md"),
-                    },
                 ],
             }
         );

codex-rs/app-server-test-client/BUILD.bazel

@@ -1,6 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "codex-app-server-test-client",
-    crate_name = "codex_app_server_test_client",
-)

codex-rs/app-server-test-client/src/main.rs

@@ -256,11 +256,7 @@ fn send_message_v2_with_policies(
     println!("< thread/start response: {thread_response:?}");
     let mut turn_params = TurnStartParams {
         thread_id: thread_response.thread.id.clone(),
-        input: vec![V2UserInput::Text {
-            text: user_message,
-            // Test client sends plain text without UI element ranges.
-            text_elements: Vec::new(),
-        }],
+        input: vec![V2UserInput::Text { text: user_message }],
         ..Default::default()
     };
     turn_params.approval_policy = approval_policy;
@@ -292,8 +288,6 @@ fn send_follow_up_v2(
         thread_id: thread_response.thread.id.clone(),
         input: vec![V2UserInput::Text {
             text: first_message,
-            // Test client sends plain text without UI element ranges.
-            text_elements: Vec::new(),
         }],
         ..Default::default()
     };
@@ -305,8 +299,6 @@ fn send_follow_up_v2(
         thread_id: thread_response.thread.id.clone(),
         input: vec![V2UserInput::Text {
             text: follow_up_message,
-            // Test client sends plain text without UI element ranges.
-            text_elements: Vec::new(),
         }],
         ..Default::default()
     };
@@ -479,8 +471,6 @@ impl CodexClient {
                 conversation_id: *conversation_id,
                 items: vec![InputItem::Text {
                     text: message.to_string(),
-                    // Test client sends plain text without UI element ranges.
-                    text_elements: Vec::new(),
                 }],
             },
         };
@@ -555,7 +545,7 @@ impl CodexClient {
                         print!("{}", event.delta);
                         std::io::stdout().flush().ok();
                     }
-                    EventMsg::TurnComplete(event) => {
+                    EventMsg::TaskComplete(event) => {
                         println!("\n[task complete: {event:?}]");
                         break;
                     }
@@ -842,9 +832,6 @@ impl CodexClient {
             turn_id,
             item_id,
             reason,
-            command,
-            cwd,
-            command_actions,
             proposed_execpolicy_amendment,
         } = params;
 
@@ -854,17 +841,6 @@ impl CodexClient {
         if let Some(reason) = reason.as_deref() {
             println!("< reason: {reason}");
         }
-        if let Some(command) = command.as_deref() {
-            println!("< command: {command}");
-        }
-        if let Some(cwd) = cwd.as_ref() {
-            println!("< cwd: {}", cwd.display());
-        }
-        if let Some(command_actions) = command_actions.as_ref()
-            && !command_actions.is_empty()
-        {
-            println!("< command actions: {command_actions:?}");
-        }
         if let Some(execpolicy_amendment) = proposed_execpolicy_amendment.as_ref() {
             println!("< proposed execpolicy amendment: {execpolicy_amendment:?}");
         }

codex-rs/app-server/BUILD.bazel

@@ -1,8 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "app-server",
-    crate_name = "codex_app_server",
-    integration_deps_extra = ["//codex-rs/app-server/tests/common:common"],
-    test_tags = ["no-sandbox"],
-)

codex-rs/app-server/Cargo.toml

@@ -22,7 +22,6 @@ codex-common = { workspace = true, features = ["cli"] }
 codex-core = { workspace = true }
 codex-backend-client = { workspace = true }
 codex-file-search = { workspace = true }
-codex-chatgpt = { workspace = true }
 codex-login = { workspace = true }
 codex-protocol = { workspace = true }
 codex-app-server-protocol = { workspace = true }
@@ -35,7 +34,6 @@ serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
 mcp-types = { workspace = true }
 tempfile = { workspace = true }
-time = { workspace = true }
 toml = { workspace = true }
 tokio = { workspace = true, features = [
     "io-std",
@@ -50,20 +48,11 @@ uuid = { workspace = true, features = ["serde", "v7"] }
 
 [dev-dependencies]
 app_test_support = { workspace = true }
-axum = { workspace = true, default-features = false, features = [
-    "http1",
-    "json",
-    "tokio",
-] }
 base64 = { workspace = true }
 core_test_support = { workspace = true }
 mcp-types = { workspace = true }
 os_info = { workspace = true }
 pretty_assertions = { workspace = true }
-rmcp = { workspace = true, default-features = false, features = [
-    "server",
-    "transport-streamable-http-server",
-] }
 serial_test = { workspace = true }
 wiremock = { workspace = true }
 shlex = { workspace = true }

codex-rs/app-server/README.md

@@ -41,9 +41,8 @@ Use the thread APIs to create, list, or archive conversations. Drive a conversat
 ## Lifecycle Overview
 
 - Initialize once: Immediately after launching the codex app-server process, send an `initialize` request with your client metadata, then emit an `initialized` notification. Any other request before this handshake gets rejected.
-- Start (or resume) a thread: Call `thread/start` to open a fresh conversation. The response returns the thread object and you’ll also get a `thread/started` notification. If you’re continuing an existing conversation, call `thread/resume` with its ID instead. If you want to branch from an existing conversation, call `thread/fork` to create a new thread id with copied history.
+- Start (or resume) a thread: Call `thread/start` to open a fresh conversation. The response returns the thread object and you’ll also get a `thread/started` notification. If you’re continuing an existing conversation, call `thread/resume` with its ID instead.
 - Begin a turn: To send user input, call `turn/start` with the target `threadId` and the user's input. Optional fields let you override model, cwd, sandbox policy, etc. This immediately returns the new turn object and triggers a `turn/started` notification.
-- Or run once: Call `exec/run` to execute a single turn to completion and receive the final status/message in the response without subscribing to the event stream.
 - Stream events: After `turn/start`, keep reading JSON-RPC notifications on stdout. You’ll see `item/started`, `item/completed`, deltas like `item/agentMessage/delta`, tool progress, etc. These represent streaming model output plus any side effects (commands, tool calls, reasoning notes).
 - Finish the turn: When the model is done (or the turn is interrupted via making the `turn/interrupt` call), the server sends `turn/completed` with the final turn state and token usage.
 
@@ -53,10 +52,6 @@ Clients must send a single `initialize` request before invoking any other method
 
 Applications building on top of `codex app-server` should identify themselves via the `clientInfo` parameter.
 
-**Important**: `clientInfo.name` is used to identify the client for the OpenAI Compliance Logs Platform. If
-you are developing a new Codex integration that is intended for enterprise use, please contact us to get it
-added to a known clients list. For more context: https://chatgpt.com/admin/api-reference#tag/Logs:-Codex
-
 Example (from OpenAI's official VSCode extension):
 
 ```json
@@ -65,7 +60,7 @@ Example (from OpenAI's official VSCode extension):
   "id": 0,
   "params": {
     "clientInfo": {
-      "name": "codex_vscode",
+      "name": "codex-vscode",
       "title": "Codex VS Code Extension",
       "version": "0.1.0"
     }
@@ -77,32 +72,22 @@ Example (from OpenAI's official VSCode extension):
 
 - `thread/start` — create a new thread; emits `thread/started` and auto-subscribes you to turn/item events for that thread.
 - `thread/resume` — reopen an existing thread by id so subsequent `turn/start` calls append to it.
-- `thread/fork` — fork an existing thread into a new thread id by copying the stored history; emits `thread/started` and auto-subscribes you to turn/item events for the new thread.
 - `thread/list` — page through stored rollouts; supports cursor-based pagination and optional `modelProviders` filtering.
-- `thread/loaded/list` — list the thread ids currently loaded in memory.
-- `thread/read` — read a stored thread by id without resuming it; optionally include turns via `includeTurns`.
 - `thread/archive` — move a thread’s rollout file into the archived directory; returns `{}` on success.
 - `thread/rollback` — drop the last N turns from the agent’s in-memory context and persist a rollback marker in the rollout so future resumes see the pruned history; returns the updated `thread` (with `turns` populated) on success.
 - `turn/start` — add user input to a thread and begin Codex generation; responds with the initial `turn` object and streams `turn/started`, `item/*`, and `turn/completed` notifications.
 - `turn/interrupt` — request cancellation of an in-flight turn by `(thread_id, turn_id)`; success is an empty `{}` response and the turn finishes with `status: "interrupted"`.
 - `review/start` — kick off Codex’s automated reviewer for a thread; responds like `turn/start` and emits `item/started`/`item/completed` notifications with `enteredReviewMode` and `exitedReviewMode` items, plus a final assistant `agentMessage` containing the review.
-- `exec/run` — run a single turn to completion and return the final status/message inline without streaming notifications.
 - `command/exec` — run a single command under the server sandbox without starting a thread/turn (handy for utilities and validation).
 - `model/list` — list available models (with reasoning effort options).
-- `collaborationMode/list` — list available collaboration mode presets (experimental, no pagination).
 - `skills/list` — list skills for one or more `cwd` values (optional `forceReload`).
-- `app/list` — list available apps.
-- `skills/config/write` — write user-level skill config by path.
 - `mcpServer/oauth/login` — start an OAuth login for a configured MCP server; returns an `authorization_url` and later emits `mcpServer/oauthLogin/completed` once the browser flow finishes.
-- `tool/requestUserInput` — prompt the user with 1–3 short questions for a tool call and return their answers (experimental).
-- `config/mcpServer/reload` — reload MCP server config from disk and queue a refresh for loaded threads (applied on each thread's next active turn); returns `{}`. Use this after editing `config.toml` without restarting the server.
 - `mcpServerStatus/list` — enumerate configured MCP servers with their tools, resources, resource templates, and auth status; supports cursor+limit pagination.
 - `feedback/upload` — submit a feedback report (classification + optional reason/logs and conversation_id); returns the tracking thread id.
 - `command/exec` — run a single command under the server sandbox without starting a thread/turn (handy for utilities and validation).
 - `config/read` — fetch the effective config on disk after resolving config layering.
 - `config/value/write` — write a single config key/value to the user's config.toml on disk.
 - `config/batchWrite` — apply multiple config edits atomically to the user's config.toml on disk.
-- `configRequirements/read` — fetch the loaded requirements allow-lists from `requirements.toml` and/or MDM (or `null` if none are configured).
 
 ### Example: Start or resume a thread
 
@@ -116,20 +101,6 @@ Start a fresh thread when you need a new Codex conversation.
     "cwd": "/Users/me/project",
     "approvalPolicy": "never",
     "sandbox": "workspaceWrite",
-    "personality": "friendly",
-    "dynamicTools": [
-        {
-            "name": "lookup_ticket",
-            "description": "Fetch a ticket by id",
-            "inputSchema": {
-                "type": "object",
-                "properties": {
-                    "id": { "type": "string" }
-                },
-                "required": ["id"]
-            }
-        }
-    ],
 } }
 { "id": 10, "result": {
     "thread": {
@@ -142,33 +113,20 @@ Start a fresh thread when you need a new Codex conversation.
 { "method": "thread/started", "params": { "thread": { … } } }
 ```
 
-To continue a stored session, call `thread/resume` with the `thread.id` you previously recorded. The response shape matches `thread/start`, and no additional notifications are emitted. You can also pass the same configuration overrides supported by `thread/start`, such as `personality`:
+To continue a stored session, call `thread/resume` with the `thread.id` you previously recorded. The response shape matches `thread/start`, and no additional notifications are emitted:
 
 ```json
-{ "method": "thread/resume", "id": 11, "params": {
-    "threadId": "thr_123",
-    "personality": "friendly"
-} }
+{ "method": "thread/resume", "id": 11, "params": { "threadId": "thr_123" } }
 { "id": 11, "result": { "thread": { "id": "thr_123", … } } }
 ```
 
-To branch from a stored session, call `thread/fork` with the `thread.id`. This creates a new thread id and emits a `thread/started` notification for it:
-
-```json
-{ "method": "thread/fork", "id": 12, "params": { "threadId": "thr_123" } }
-{ "id": 12, "result": { "thread": { "id": "thr_456", … } } }
-{ "method": "thread/started", "params": { "thread": { … } } }
-```
-
 ### Example: List threads (with pagination & filters)
 
-`thread/list` lets you render a history UI. Results default to `createdAt` (newest first) descending. Pass any combination of:
+`thread/list` lets you render a history UI. Pass any combination of:
 
 - `cursor` — opaque string from a prior response; omit for the first page.
 - `limit` — server defaults to a reasonable page size if unset.
-- `sortKey` — `created_at` (default) or `updated_at`.
 - `modelProviders` — restrict results to specific providers; unset, null, or an empty array will include all providers.
-- `archived` — when `true`, list archived threads only. When `false` or `null`, list non-archived threads (default).
 
 Example:
 
@@ -176,12 +134,11 @@ Example:
 { "method": "thread/list", "id": 20, "params": {
     "cursor": null,
     "limit": 25,
-    "sortKey": "created_at"
 } }
 { "id": 20, "result": {
     "data": [
-        { "id": "thr_a", "preview": "Create a TUI", "modelProvider": "openai", "createdAt": 1730831111, "updatedAt": 1730831111 },
-        { "id": "thr_b", "preview": "Fix tests", "modelProvider": "openai", "createdAt": 1730750000, "updatedAt": 1730750000 }
+        { "id": "thr_a", "preview": "Create a TUI", "modelProvider": "openai", "createdAt": 1730831111 },
+        { "id": "thr_b", "preview": "Fix tests", "modelProvider": "openai", "createdAt": 1730750000 }
     ],
     "nextCursor": "opaque-token-or-null"
 } }
@@ -189,31 +146,6 @@ Example:
 
 When `nextCursor` is `null`, you’ve reached the final page.
 
-### Example: List loaded threads
-
-`thread/loaded/list` returns thread ids currently loaded in memory. This is useful when you want to check which sessions are active without scanning rollouts on disk.
-
-```json
-{ "method": "thread/loaded/list", "id": 21 }
-{ "id": 21, "result": {
-    "data": ["thr_123", "thr_456"]
-} }
-```
-
-### Example: Read a thread
-
-Use `thread/read` to fetch a stored thread by id without resuming it. Pass `includeTurns` when you want the rollout history loaded into `thread.turns`.
-
-```json
-{ "method": "thread/read", "id": 22, "params": { "threadId": "thr_123" } }
-{ "id": 22, "result": { "thread": { "id": "thr_123", "turns": [] } } }
-```
-
-```json
-{ "method": "thread/read", "id": 23, "params": { "threadId": "thr_123", "includeTurns": true } }
-{ "id": 23, "result": { "thread": { "id": "thr_123", "turns": [ ... ] } } }
-```
-
 ### Example: Archive a thread
 
 Use `thread/archive` to move the persisted rollout (stored as a JSONL file on disk) into the archived sessions directory.
@@ -223,7 +155,7 @@ Use `thread/archive` to move the persisted rollout (stored as a JSONL file on di
 { "id": 21, "result": {} }
 ```
 
-An archived thread will not appear in `thread/list` unless `archived` is set to `true`.
+An archived thread will not appear in future calls to `thread/list`.
 
 ### Example: Start a turn (send user input)
 
@@ -250,7 +182,6 @@ You can optionally specify config overrides on the new turn. If specified, these
     "model": "gpt-5.1-codex",
     "effort": "medium",
     "summary": "concise",
-    "personality": "friendly",
     // Optional JSON Schema to constrain the final assistant message for this turn.
     "outputSchema": {
         "type": "object",
@@ -269,14 +200,13 @@ You can optionally specify config overrides on the new turn. If specified, these
 
 ### Example: Start a turn (invoke a skill)
 
-Invoke a skill explicitly by including `$<skill-name>` in the text input and adding a `skill` input item alongside it.
+Invoke a skill by sending a text input that begins with `$<skill-name>`.
 
 ```json
 { "method": "turn/start", "id": 33, "params": {
     "threadId": "thr_123",
     "input": [
-        { "type": "text", "text": "$skill-creator Add a new skill for triaging flaky CI and include step-by-step usage." },
-        { "type": "skill", "name": "skill-creator", "path": "/Users/me/.codex/skills/skill-creator/SKILL.md" }
+        { "type": "text", "text": "$skill-creator Add a new skill for triaging flaky CI and include step-by-step usage." }
     ]
 } }
 { "id": 33, "result": { "turn": {
@@ -370,34 +300,6 @@ containing an `exitedReviewMode` item with the final review text:
 
 The `review` string is plain text that already bundles the overall explanation plus a bullet list for each structured finding (matching `ThreadItem::ExitedReviewMode` in the generated schema). Use this notification to render the reviewer output in your client.
 
-### Example: Exec run to completion
-
-Run a single turn to completion without subscribing to streamed turn/item events:
-
-```json
-{ "method": "exec/run", "id": 31, "params": {
-    "input": [{
-        "type": "text",
-        "text": "Generate a concise thread title",
-        "textElements": []
-    }]
-} }
-{ "id": 31, "result": {
-    "threadId": "thread-123",
-    "turnId": "turn-456",
-    "status": "completed",
-    "lastAgentMessage": "Fix title generation for app-server",
-    "error": null
-} }
-```
-
-Notes:
-
-- `exec/run` is best for one-off utilities (for example, generating a title) where you just need the final result.
-- `exec/run` always runs ephemerally, so it does not create a rollout and will not appear in `thread/list`.
-- `exec/run` forces `approvalPolicy: "never"` and a read-only sandbox.
-- Use `turn/start` when you want streaming events, intermediate items, or a long-lived thread.
-
 ### Example: One-off command execution
 
 Run a standalone command (argv vector) in the server’s sandbox without creating a thread or turn:
@@ -445,7 +347,6 @@ Today both notifications carry an empty `items` array even when item events were
 - `commandExecution` — `{id, command, cwd, status, commandActions, aggregatedOutput?, exitCode?, durationMs?}` for sandboxed commands; `status` is `inProgress`, `completed`, `failed`, or `declined`.
 - `fileChange` — `{id, changes, status}` describing proposed edits; `changes` list `{path, kind, diff}` and `status` is `inProgress`, `completed`, `failed`, or `declined`.
 - `mcpToolCall` — `{id, server, tool, status, arguments, result?, error?}` describing MCP calls; `status` is `inProgress`, `completed`, or `failed`.
-- `collabToolCall` — `{id, tool, status, senderThreadId, receiverThreadId?, newThreadId?, prompt?, agentStatus?}` describing collab tool calls (`spawn_agent`, `send_input`, `wait`, `close_agent`); `status` is `inProgress`, `completed`, or `failed`.
 - `webSearch` — `{id, query}` for a web search request issued by the agent.
 - `imageView` — `{id, path}` emitted when the agent invokes the image viewer tool.
 - `enteredReviewMode` — `{id, review}` sent when the reviewer starts; `review` is a short user-facing label such as `"current changes"` or the requested target description.
@@ -510,7 +411,7 @@ Certain actions (shell commands or modifying files) may require explicit user ap
 Order of messages:
 
 1. `item/started` — shows the pending `commandExecution` item with `command`, `cwd`, and other fields so you can render the proposed action.
-2. `item/commandExecution/requestApproval` (request) — carries the same `itemId`, `threadId`, `turnId`, optionally `reason`, plus `command`, `cwd`, and `commandActions` for friendly display.
+2. `item/commandExecution/requestApproval` (request) — carries the same `itemId`, `threadId`, `turnId`, optionally `reason` or `risk`, plus `parsedCmd` for friendly display.
 3. Client response — `{ "decision": "accept", "acceptSettings": { "forSession": false } }` or `{ "decision": "decline" }`.
 4. `item/completed` — final `commandExecution` item with `status: "completed" | "failed" | "declined"` and execution output. Render this as the authoritative result.
 
@@ -527,30 +428,7 @@ UI guidance for IDEs: surface an approval dialog as soon as the request arrives.
 
 ## Skills
 
-Invoke a skill by including `$<skill-name>` in the text input. Add a `skill` input item (recommended) so the backend injects full skill instructions instead of relying on the model to resolve the name.
-
-```json
-{
-  "method": "turn/start",
-  "id": 101,
-  "params": {
-    "threadId": "thread-1",
-    "input": [
-      {
-        "type": "text",
-        "text": "$skill-creator Add a new skill for triaging flaky CI."
-      },
-      {
-        "type": "skill",
-        "name": "skill-creator",
-        "path": "/Users/me/.codex/skills/skill-creator/SKILL.md"
-      }
-    ]
-  }
-}
-```
-
-If you omit the `skill` item, the model will still parse the `$<skill-name>` marker and try to locate the skill, which can add latency.
+Skills are invoked by sending a text input that starts with `$<skill-name>`. The rest of the text is passed to the skill as its input.
 
 Example:
 
@@ -558,49 +436,20 @@ Example:
 $skill-creator Add a new skill for triaging flaky CI and include step-by-step usage.
 ```
 
-Use `skills/list` to fetch the available skills (optionally scoped by `cwds`, with `forceReload`).
+Use `skills/list` to fetch the available skills (optionally scoped by `cwd` and/or with `forceReload`).
 
 ```json
 { "method": "skills/list", "id": 25, "params": {
-    "cwds": ["/Users/me/project"],
+    "cwd": "/Users/me/project",
     "forceReload": false
 } }
 { "id": 25, "result": {
-    "data": [{
-        "cwd": "/Users/me/project",
-        "skills": [
-            {
-              "name": "skill-creator",
-              "description": "Create or update a Codex skill",
-              "enabled": true,
-              "interface": {
-                "displayName": "Skill Creator",
-                "shortDescription": "Create or update a Codex skill",
-                "iconSmall": "icon.svg",
-                "iconLarge": "icon-large.svg",
-                "brandColor": "#111111",
-                "defaultPrompt": "Add a new skill for triaging flaky CI."
-              }
-            }
-        ],
-        "errors": []
-    }]
+    "skills": [
+        { "name": "skill-creator", "description": "Create or update a Codex skill" }
+    ]
 } }
 ```
 
-To enable or disable a skill by path:
-
-```json
-{
-  "method": "skills/config/write",
-  "id": 26,
-  "params": {
-    "path": "/Users/me/.codex/skills/skill-creator/SKILL.md",
-    "enabled": false
-  }
-}
-```
-
 ## Auth endpoints
 
 The JSON-RPC auth/account surface exposes request/response methods plus server-initiated notifications (no `id`). Use these to determine auth state, start or cancel logins, logout, and inspect ChatGPT rate limits.

codex-rs/app-server/src/bespoke_event_handling.rs

@@ -14,9 +14,6 @@ use codex_app_server_protocol::AgentMessageDeltaNotification;
 use codex_app_server_protocol::ApplyPatchApprovalParams;
 use codex_app_server_protocol::ApplyPatchApprovalResponse;
 use codex_app_server_protocol::CodexErrorInfo as V2CodexErrorInfo;
-use codex_app_server_protocol::CollabAgentState as V2CollabAgentStatus;
-use codex_app_server_protocol::CollabAgentTool;
-use codex_app_server_protocol::CollabAgentToolCallStatus as V2CollabToolCallStatus;
 use codex_app_server_protocol::CommandAction as V2ParsedCommand;
 use codex_app_server_protocol::CommandExecutionApprovalDecision;
 use codex_app_server_protocol::CommandExecutionOutputDeltaNotification;
@@ -25,7 +22,6 @@ use codex_app_server_protocol::CommandExecutionRequestApprovalResponse;
 use codex_app_server_protocol::CommandExecutionStatus;
 use codex_app_server_protocol::ContextCompactedNotification;
 use codex_app_server_protocol::DeprecationNoticeNotification;
-use codex_app_server_protocol::DynamicToolCallParams;
 use codex_app_server_protocol::ErrorNotification;
 use codex_app_server_protocol::ExecCommandApprovalParams;
 use codex_app_server_protocol::ExecCommandApprovalResponse;
@@ -55,10 +51,6 @@ use codex_app_server_protocol::ThreadItem;
 use codex_app_server_protocol::ThreadRollbackResponse;
 use codex_app_server_protocol::ThreadTokenUsage;
 use codex_app_server_protocol::ThreadTokenUsageUpdatedNotification;
-use codex_app_server_protocol::ToolRequestUserInputOption;
-use codex_app_server_protocol::ToolRequestUserInputParams;
-use codex_app_server_protocol::ToolRequestUserInputQuestion;
-use codex_app_server_protocol::ToolRequestUserInputResponse;
 use codex_app_server_protocol::Turn;
 use codex_app_server_protocol::TurnCompletedNotification;
 use codex_app_server_protocol::TurnDiffUpdatedNotification;
@@ -86,11 +78,8 @@ use codex_core::protocol::TurnDiffEvent;
 use codex_core::review_format::format_review_findings_block;
 use codex_core::review_prompts;
 use codex_protocol::ThreadId;
-use codex_protocol::dynamic_tools::DynamicToolResponse as CoreDynamicToolResponse;
 use codex_protocol::plan_tool::UpdatePlanArgs;
 use codex_protocol::protocol::ReviewOutputEvent;
-use codex_protocol::request_user_input::RequestUserInputAnswer as CoreRequestUserInputAnswer;
-use codex_protocol::request_user_input::RequestUserInputResponse as CoreRequestUserInputResponse;
 use std::collections::HashMap;
 use std::convert::TryFrom;
 use std::path::PathBuf;
@@ -117,7 +106,7 @@ pub(crate) async fn apply_bespoke_event_handling(
         msg,
     } = event;
     match msg {
-        EventMsg::TurnComplete(_ev) => {
+        EventMsg::TaskComplete(_ev) => {
             handle_turn_complete(
                 conversation_id,
                 event_turn_id,
@@ -243,9 +232,6 @@ pub(crate) async fn apply_bespoke_event_handling(
                     // and emit the corresponding EventMsg, we repurpose the call_id as the item_id.
                     item_id: item_id.clone(),
                     reason,
-                    command: Some(command_string.clone()),
-                    cwd: Some(cwd.clone()),
-                    command_actions: Some(command_actions.clone()),
                     proposed_execpolicy_amendment: proposed_execpolicy_amendment_v2,
                 };
                 let rx = outgoing
@@ -269,91 +255,6 @@ pub(crate) async fn apply_bespoke_event_handling(
                 });
             }
         },
-        EventMsg::RequestUserInput(request) => {
-            if matches!(api_version, ApiVersion::V2) {
-                let questions = request
-                    .questions
-                    .into_iter()
-                    .map(|question| ToolRequestUserInputQuestion {
-                        id: question.id,
-                        header: question.header,
-                        question: question.question,
-                        options: question.options.map(|options| {
-                            options
-                                .into_iter()
-                                .map(|option| ToolRequestUserInputOption {
-                                    label: option.label,
-                                    description: option.description,
-                                })
-                                .collect()
-                        }),
-                    })
-                    .collect();
-                let params = ToolRequestUserInputParams {
-                    thread_id: conversation_id.to_string(),
-                    turn_id: request.turn_id,
-                    item_id: request.call_id,
-                    questions,
-                };
-                let rx = outgoing
-                    .send_request(ServerRequestPayload::ToolRequestUserInput(params))
-                    .await;
-                tokio::spawn(async move {
-                    on_request_user_input_response(event_turn_id, rx, conversation).await;
-                });
-            } else {
-                error!(
-                    "request_user_input is only supported on api v2 (call_id: {})",
-                    request.call_id
-                );
-                let empty = CoreRequestUserInputResponse {
-                    answers: HashMap::new(),
-                };
-                if let Err(err) = conversation
-                    .submit(Op::UserInputAnswer {
-                        id: event_turn_id,
-                        response: empty,
-                    })
-                    .await
-                {
-                    error!("failed to submit UserInputAnswer: {err}");
-                }
-            }
-        }
-        EventMsg::DynamicToolCallRequest(request) => {
-            if matches!(api_version, ApiVersion::V2) {
-                let call_id = request.call_id;
-                let params = DynamicToolCallParams {
-                    thread_id: conversation_id.to_string(),
-                    turn_id: request.turn_id,
-                    call_id: call_id.clone(),
-                    tool: request.tool,
-                    arguments: request.arguments,
-                };
-                let rx = outgoing
-                    .send_request(ServerRequestPayload::DynamicToolCall(params))
-                    .await;
-                tokio::spawn(async move {
-                    crate::dynamic_tools::on_call_response(call_id, rx, conversation).await;
-                });
-            } else {
-                error!(
-                    "dynamic tool calls are only supported on api v2 (call_id: {})",
-                    request.call_id
-                );
-                let call_id = request.call_id;
-                let _ = conversation
-                    .submit(Op::DynamicToolResponse {
-                        id: call_id.clone(),
-                        response: CoreDynamicToolResponse {
-                            call_id,
-                            output: "dynamic tool calls require api v2".to_string(),
-                            success: false,
-                        },
-                    })
-                    .await;
-            }
-        }
         // TODO(celia): properly construct McpToolCall TurnItem in core.
         EventMsg::McpToolCallBegin(begin_event) => {
             let notification = construct_mcp_tool_call_notification(
@@ -377,218 +278,6 @@ pub(crate) async fn apply_bespoke_event_handling(
                 .send_server_notification(ServerNotification::ItemCompleted(notification))
                 .await;
         }
-        EventMsg::CollabAgentSpawnBegin(begin_event) => {
-            let item = ThreadItem::CollabAgentToolCall {
-                id: begin_event.call_id,
-                tool: CollabAgentTool::SpawnAgent,
-                status: V2CollabToolCallStatus::InProgress,
-                sender_thread_id: begin_event.sender_thread_id.to_string(),
-                receiver_thread_ids: Vec::new(),
-                prompt: Some(begin_event.prompt),
-                agents_states: HashMap::new(),
-            };
-            let notification = ItemStartedNotification {
-                thread_id: conversation_id.to_string(),
-                turn_id: event_turn_id.clone(),
-                item,
-            };
-            outgoing
-                .send_server_notification(ServerNotification::ItemStarted(notification))
-                .await;
-        }
-        EventMsg::CollabAgentSpawnEnd(end_event) => {
-            let has_receiver = end_event.new_thread_id.is_some();
-            let status = match &end_event.status {
-                codex_protocol::protocol::AgentStatus::Errored(_)
-                | codex_protocol::protocol::AgentStatus::NotFound => V2CollabToolCallStatus::Failed,
-                _ if has_receiver => V2CollabToolCallStatus::Completed,
-                _ => V2CollabToolCallStatus::Failed,
-            };
-            let (receiver_thread_ids, agents_states) = match end_event.new_thread_id {
-                Some(id) => {
-                    let receiver_id = id.to_string();
-                    let received_status = V2CollabAgentStatus::from(end_event.status.clone());
-                    (
-                        vec![receiver_id.clone()],
-                        [(receiver_id, received_status)].into_iter().collect(),
-                    )
-                }
-                None => (Vec::new(), HashMap::new()),
-            };
-            let item = ThreadItem::CollabAgentToolCall {
-                id: end_event.call_id,
-                tool: CollabAgentTool::SpawnAgent,
-                status,
-                sender_thread_id: end_event.sender_thread_id.to_string(),
-                receiver_thread_ids,
-                prompt: Some(end_event.prompt),
-                agents_states,
-            };
-            let notification = ItemCompletedNotification {
-                thread_id: conversation_id.to_string(),
-                turn_id: event_turn_id.clone(),
-                item,
-            };
-            outgoing
-                .send_server_notification(ServerNotification::ItemCompleted(notification))
-                .await;
-        }
-        EventMsg::CollabAgentInteractionBegin(begin_event) => {
-            let receiver_thread_ids = vec![begin_event.receiver_thread_id.to_string()];
-            let item = ThreadItem::CollabAgentToolCall {
-                id: begin_event.call_id,
-                tool: CollabAgentTool::SendInput,
-                status: V2CollabToolCallStatus::InProgress,
-                sender_thread_id: begin_event.sender_thread_id.to_string(),
-                receiver_thread_ids,
-                prompt: Some(begin_event.prompt),
-                agents_states: HashMap::new(),
-            };
-            let notification = ItemStartedNotification {
-                thread_id: conversation_id.to_string(),
-                turn_id: event_turn_id.clone(),
-                item,
-            };
-            outgoing
-                .send_server_notification(ServerNotification::ItemStarted(notification))
-                .await;
-        }
-        EventMsg::CollabAgentInteractionEnd(end_event) => {
-            let status = match &end_event.status {
-                codex_protocol::protocol::AgentStatus::Errored(_)
-                | codex_protocol::protocol::AgentStatus::NotFound => V2CollabToolCallStatus::Failed,
-                _ => V2CollabToolCallStatus::Completed,
-            };
-            let receiver_id = end_event.receiver_thread_id.to_string();
-            let received_status = V2CollabAgentStatus::from(end_event.status);
-            let item = ThreadItem::CollabAgentToolCall {
-                id: end_event.call_id,
-                tool: CollabAgentTool::SendInput,
-                status,
-                sender_thread_id: end_event.sender_thread_id.to_string(),
-                receiver_thread_ids: vec![receiver_id.clone()],
-                prompt: Some(end_event.prompt),
-                agents_states: [(receiver_id, received_status)].into_iter().collect(),
-            };
-            let notification = ItemCompletedNotification {
-                thread_id: conversation_id.to_string(),
-                turn_id: event_turn_id.clone(),
-                item,
-            };
-            outgoing
-                .send_server_notification(ServerNotification::ItemCompleted(notification))
-                .await;
-        }
-        EventMsg::CollabWaitingBegin(begin_event) => {
-            let receiver_thread_ids = begin_event
-                .receiver_thread_ids
-                .iter()
-                .map(ToString::to_string)
-                .collect();
-            let item = ThreadItem::CollabAgentToolCall {
-                id: begin_event.call_id,
-                tool: CollabAgentTool::Wait,
-                status: V2CollabToolCallStatus::InProgress,
-                sender_thread_id: begin_event.sender_thread_id.to_string(),
-                receiver_thread_ids,
-                prompt: None,
-                agents_states: HashMap::new(),
-            };
-            let notification = ItemStartedNotification {
-                thread_id: conversation_id.to_string(),
-                turn_id: event_turn_id.clone(),
-                item,
-            };
-            outgoing
-                .send_server_notification(ServerNotification::ItemStarted(notification))
-                .await;
-        }
-        EventMsg::CollabWaitingEnd(end_event) => {
-            let status = if end_event.statuses.values().any(|status| {
-                matches!(
-                    status,
-                    codex_protocol::protocol::AgentStatus::Errored(_)
-                        | codex_protocol::protocol::AgentStatus::NotFound
-                )
-            }) {
-                V2CollabToolCallStatus::Failed
-            } else {
-                V2CollabToolCallStatus::Completed
-            };
-            let receiver_thread_ids = end_event.statuses.keys().map(ToString::to_string).collect();
-            let agents_states = end_event
-                .statuses
-                .iter()
-                .map(|(id, status)| (id.to_string(), V2CollabAgentStatus::from(status.clone())))
-                .collect();
-            let item = ThreadItem::CollabAgentToolCall {
-                id: end_event.call_id,
-                tool: CollabAgentTool::Wait,
-                status,
-                sender_thread_id: end_event.sender_thread_id.to_string(),
-                receiver_thread_ids,
-                prompt: None,
-                agents_states,
-            };
-            let notification = ItemCompletedNotification {
-                thread_id: conversation_id.to_string(),
-                turn_id: event_turn_id.clone(),
-                item,
-            };
-            outgoing
-                .send_server_notification(ServerNotification::ItemCompleted(notification))
-                .await;
-        }
-        EventMsg::CollabCloseBegin(begin_event) => {
-            let item = ThreadItem::CollabAgentToolCall {
-                id: begin_event.call_id,
-                tool: CollabAgentTool::CloseAgent,
-                status: V2CollabToolCallStatus::InProgress,
-                sender_thread_id: begin_event.sender_thread_id.to_string(),
-                receiver_thread_ids: vec![begin_event.receiver_thread_id.to_string()],
-                prompt: None,
-                agents_states: HashMap::new(),
-            };
-            let notification = ItemStartedNotification {
-                thread_id: conversation_id.to_string(),
-                turn_id: event_turn_id.clone(),
-                item,
-            };
-            outgoing
-                .send_server_notification(ServerNotification::ItemStarted(notification))
-                .await;
-        }
-        EventMsg::CollabCloseEnd(end_event) => {
-            let status = match &end_event.status {
-                codex_protocol::protocol::AgentStatus::Errored(_)
-                | codex_protocol::protocol::AgentStatus::NotFound => V2CollabToolCallStatus::Failed,
-                _ => V2CollabToolCallStatus::Completed,
-            };
-            let receiver_id = end_event.receiver_thread_id.to_string();
-            let agents_states = [(
-                receiver_id.clone(),
-                V2CollabAgentStatus::from(end_event.status),
-            )]
-            .into_iter()
-            .collect();
-            let item = ThreadItem::CollabAgentToolCall {
-                id: end_event.call_id,
-                tool: CollabAgentTool::CloseAgent,
-                status,
-                sender_thread_id: end_event.sender_thread_id.to_string(),
-                receiver_thread_ids: vec![receiver_id],
-                prompt: None,
-                agents_states,
-            };
-            let notification = ItemCompletedNotification {
-                thread_id: conversation_id.to_string(),
-                turn_id: event_turn_id.clone(),
-                item,
-            };
-            outgoing
-                .send_server_notification(ServerNotification::ItemCompleted(notification))
-                .await;
-        }
         EventMsg::AgentMessageContentDelta(event) => {
             let notification = AgentMessageDeltaNotification {
                 thread_id: conversation_id.to_string(),
@@ -1042,15 +731,7 @@ pub(crate) async fn apply_bespoke_event_handling(
             };
 
             if let Some(request_id) = pending {
-                let Some(rollout_path) = conversation.rollout_path() else {
-                    let error = JSONRPCErrorError {
-                        code: INVALID_REQUEST_ERROR_CODE,
-                        message: "thread has no persisted rollout".to_string(),
-                        data: None,
-                    };
-                    outgoing.send_error(request_id, error).await;
-                    return;
-                };
+                let rollout_path = conversation.rollout_path();
                 let response = match read_summary_from_rollout(
                     rollout_path.as_path(),
                     fallback_model_provider.as_str(),
@@ -1451,65 +1132,6 @@ async fn on_exec_approval_response(
     }
 }
 
-async fn on_request_user_input_response(
-    event_turn_id: String,
-    receiver: oneshot::Receiver<JsonValue>,
-    conversation: Arc<CodexThread>,
-) {
-    let response = receiver.await;
-    let value = match response {
-        Ok(value) => value,
-        Err(err) => {
-            error!("request failed: {err:?}");
-            let empty = CoreRequestUserInputResponse {
-                answers: HashMap::new(),
-            };
-            if let Err(err) = conversation
-                .submit(Op::UserInputAnswer {
-                    id: event_turn_id,
-                    response: empty,
-                })
-                .await
-            {
-                error!("failed to submit UserInputAnswer: {err}");
-            }
-            return;
-        }
-    };
-
-    let response =
-        serde_json::from_value::<ToolRequestUserInputResponse>(value).unwrap_or_else(|err| {
-            error!("failed to deserialize ToolRequestUserInputResponse: {err}");
-            ToolRequestUserInputResponse {
-                answers: HashMap::new(),
-            }
-        });
-    let response = CoreRequestUserInputResponse {
-        answers: response
-            .answers
-            .into_iter()
-            .map(|(id, answer)| {
-                (
-                    id,
-                    CoreRequestUserInputAnswer {
-                        answers: answer.answers,
-                    },
-                )
-            })
-            .collect(),
-    };
-
-    if let Err(err) = conversation
-        .submit(Op::UserInputAnswer {
-            id: event_turn_id,
-            response,
-        })
-        .await
-    {
-        error!("failed to submit UserInputAnswer: {err}");
-    }
-}
-
 const REVIEW_FALLBACK_MESSAGE: &str = "Reviewer failed to output a response.";
 
 fn render_review_output_text(output: &ReviewOutputEvent) -> String {

codex-rs/app-server/src/config_api.rs

@@ -3,18 +3,13 @@ use crate::error_code::INVALID_REQUEST_ERROR_CODE;
 use codex_app_server_protocol::ConfigBatchWriteParams;
 use codex_app_server_protocol::ConfigReadParams;
 use codex_app_server_protocol::ConfigReadResponse;
-use codex_app_server_protocol::ConfigRequirements;
-use codex_app_server_protocol::ConfigRequirementsReadResponse;
 use codex_app_server_protocol::ConfigValueWriteParams;
 use codex_app_server_protocol::ConfigWriteErrorCode;
 use codex_app_server_protocol::ConfigWriteResponse;
 use codex_app_server_protocol::JSONRPCErrorError;
-use codex_app_server_protocol::SandboxMode;
 use codex_core::config::ConfigService;
 use codex_core::config::ConfigServiceError;
-use codex_core::config_loader::ConfigRequirementsToml;
 use codex_core::config_loader::LoaderOverrides;
-use codex_core::config_loader::SandboxModeRequirement as CoreSandboxModeRequirement;
 use serde_json::json;
 use std::path::PathBuf;
 use toml::Value as TomlValue;
@@ -42,19 +37,6 @@ impl ConfigApi {
         self.service.read(params).await.map_err(map_error)
     }
 
-    pub(crate) async fn config_requirements_read(
-        &self,
-    ) -> Result<ConfigRequirementsReadResponse, JSONRPCErrorError> {
-        let requirements = self
-            .service
-            .read_requirements()
-            .await
-            .map_err(map_error)?
-            .map(map_requirements_toml_to_api);
-
-        Ok(ConfigRequirementsReadResponse { requirements })
-    }
-
     pub(crate) async fn write_value(
         &self,
         params: ConfigValueWriteParams,
@@ -70,32 +52,6 @@ impl ConfigApi {
     }
 }
 
-fn map_requirements_toml_to_api(requirements: ConfigRequirementsToml) -> ConfigRequirements {
-    ConfigRequirements {
-        allowed_approval_policies: requirements.allowed_approval_policies.map(|policies| {
-            policies
-                .into_iter()
-                .map(codex_app_server_protocol::AskForApproval::from)
-                .collect()
-        }),
-        allowed_sandbox_modes: requirements.allowed_sandbox_modes.map(|modes| {
-            modes
-                .into_iter()
-                .filter_map(map_sandbox_mode_requirement_to_api)
-                .collect()
-        }),
-    }
-}
-
-fn map_sandbox_mode_requirement_to_api(mode: CoreSandboxModeRequirement) -> Option<SandboxMode> {
-    match mode {
-        CoreSandboxModeRequirement::ReadOnly => Some(SandboxMode::ReadOnly),
-        CoreSandboxModeRequirement::WorkspaceWrite => Some(SandboxMode::WorkspaceWrite),
-        CoreSandboxModeRequirement::DangerFullAccess => Some(SandboxMode::DangerFullAccess),
-        CoreSandboxModeRequirement::ExternalSandbox => None,
-    }
-}
-
 fn map_error(err: ConfigServiceError) -> JSONRPCErrorError {
     if let Some(code) = err.write_error_code() {
         return config_write_error(code, err.to_string());
@@ -117,39 +73,3 @@ fn config_write_error(code: ConfigWriteErrorCode, message: impl Into<String>) ->
         })),
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use codex_protocol::protocol::AskForApproval as CoreAskForApproval;
-    use pretty_assertions::assert_eq;
-
-    #[test]
-    fn map_requirements_toml_to_api_converts_core_enums() {
-        let requirements = ConfigRequirementsToml {
-            allowed_approval_policies: Some(vec![
-                CoreAskForApproval::Never,
-                CoreAskForApproval::OnRequest,
-            ]),
-            allowed_sandbox_modes: Some(vec![
-                CoreSandboxModeRequirement::ReadOnly,
-                CoreSandboxModeRequirement::ExternalSandbox,
-            ]),
-            mcp_servers: None,
-        };
-
-        let mapped = map_requirements_toml_to_api(requirements);
-
-        assert_eq!(
-            mapped.allowed_approval_policies,
-            Some(vec![
-                codex_app_server_protocol::AskForApproval::Never,
-                codex_app_server_protocol::AskForApproval::OnRequest,
-            ])
-        );
-        assert_eq!(
-            mapped.allowed_sandbox_modes,
-            Some(vec![SandboxMode::ReadOnly]),
-        );
-    }
-}

codex-rs/app-server/src/dynamic_tools.rs

@@ -1,58 +0,0 @@
-use codex_app_server_protocol::DynamicToolCallResponse;
-use codex_core::CodexThread;
-use codex_protocol::dynamic_tools::DynamicToolResponse as CoreDynamicToolResponse;
-use codex_protocol::protocol::Op;
-use std::sync::Arc;
-use tokio::sync::oneshot;
-use tracing::error;
-
-pub(crate) async fn on_call_response(
-    call_id: String,
-    receiver: oneshot::Receiver<serde_json::Value>,
-    conversation: Arc<CodexThread>,
-) {
-    let response = receiver.await;
-    let value = match response {
-        Ok(value) => value,
-        Err(err) => {
-            error!("request failed: {err:?}");
-            let fallback = CoreDynamicToolResponse {
-                call_id: call_id.clone(),
-                output: "dynamic tool request failed".to_string(),
-                success: false,
-            };
-            if let Err(err) = conversation
-                .submit(Op::DynamicToolResponse {
-                    id: call_id.clone(),
-                    response: fallback,
-                })
-                .await
-            {
-                error!("failed to submit DynamicToolResponse: {err}");
-            }
-            return;
-        }
-    };
-
-    let response = serde_json::from_value::<DynamicToolCallResponse>(value).unwrap_or_else(|err| {
-        error!("failed to deserialize DynamicToolCallResponse: {err}");
-        DynamicToolCallResponse {
-            output: "dynamic tool response was invalid".to_string(),
-            success: false,
-        }
-    });
-    let response = CoreDynamicToolResponse {
-        call_id: call_id.clone(),
-        output: response.output,
-        success: response.success,
-    };
-    if let Err(err) = conversation
-        .submit(Op::DynamicToolResponse {
-            id: call_id,
-            response,
-        })
-        .await
-    {
-        error!("failed to submit DynamicToolResponse: {err}");
-    }
-}

codex-rs/app-server/src/lib.rs

@@ -1,9 +1,7 @@
 #![deny(clippy::print_stdout, clippy::print_stderr)]
 
 use codex_common::CliConfigOverrides;
-use codex_core::config::Config;
 use codex_core::config::ConfigBuilder;
-use codex_core::config_loader::ConfigLayerStackOrdering;
 use codex_core::config_loader::LoaderOverrides;
 use std::io::ErrorKind;
 use std::io::Result as IoResult;
@@ -12,15 +10,7 @@ use std::path::PathBuf;
 use crate::message_processor::MessageProcessor;
 use crate::outgoing_message::OutgoingMessage;
 use crate::outgoing_message::OutgoingMessageSender;
-use codex_app_server_protocol::ConfigLayerSource;
-use codex_app_server_protocol::ConfigWarningNotification;
 use codex_app_server_protocol::JSONRPCMessage;
-use codex_app_server_protocol::TextPosition as AppTextPosition;
-use codex_app_server_protocol::TextRange as AppTextRange;
-use codex_core::ExecPolicyError;
-use codex_core::check_execpolicy_for_warnings;
-use codex_core::config_loader::ConfigLoadError;
-use codex_core::config_loader::TextRange as CoreTextRange;
 use codex_feedback::CodexFeedback;
 use tokio::io::AsyncBufReadExt;
 use tokio::io::AsyncWriteExt;
@@ -31,7 +21,6 @@ use toml::Value as TomlValue;
 use tracing::debug;
 use tracing::error;
 use tracing::info;
-use tracing::warn;
 use tracing_subscriber::EnvFilter;
 use tracing_subscriber::Layer;
 use tracing_subscriber::layer::SubscriberExt;
@@ -40,7 +29,6 @@ use tracing_subscriber::util::SubscriberInitExt;
 mod bespoke_event_handling;
 mod codex_message_processor;
 mod config_api;
-mod dynamic_tools;
 mod error_code;
 mod fuzzy_file_search;
 mod message_processor;
@@ -52,117 +40,10 @@ mod outgoing_message;
 /// plenty for an interactive CLI.
 const CHANNEL_CAPACITY: usize = 128;
 
-fn config_warning_from_error(
-    summary: impl Into<String>,
-    err: &std::io::Error,
-) -> ConfigWarningNotification {
-    let (path, range) = match config_error_location(err) {
-        Some((path, range)) => (Some(path), Some(range)),
-        None => (None, None),
-    };
-    ConfigWarningNotification {
-        summary: summary.into(),
-        details: Some(err.to_string()),
-        path,
-        range,
-    }
-}
-
-fn config_error_location(err: &std::io::Error) -> Option<(String, AppTextRange)> {
-    err.get_ref()
-        .and_then(|err| err.downcast_ref::<ConfigLoadError>())
-        .map(|err| {
-            let config_error = err.config_error();
-            (
-                config_error.path.to_string_lossy().to_string(),
-                app_text_range(&config_error.range),
-            )
-        })
-}
-
-fn exec_policy_warning_location(err: &ExecPolicyError) -> (Option<String>, Option<AppTextRange>) {
-    match err {
-        ExecPolicyError::ParsePolicy { path, source } => {
-            if let Some(location) = source.location() {
-                let range = AppTextRange {
-                    start: AppTextPosition {
-                        line: location.range.start.line,
-                        column: location.range.start.column,
-                    },
-                    end: AppTextPosition {
-                        line: location.range.end.line,
-                        column: location.range.end.column,
-                    },
-                };
-                return (Some(location.path), Some(range));
-            }
-            (Some(path.clone()), None)
-        }
-        _ => (None, None),
-    }
-}
-
-fn app_text_range(range: &CoreTextRange) -> AppTextRange {
-    AppTextRange {
-        start: AppTextPosition {
-            line: range.start.line,
-            column: range.start.column,
-        },
-        end: AppTextPosition {
-            line: range.end.line,
-            column: range.end.column,
-        },
-    }
-}
-
-fn project_config_warning(config: &Config) -> Option<ConfigWarningNotification> {
-    let mut disabled_folders = Vec::new();
-
-    for layer in config
-        .config_layer_stack
-        .get_layers(ConfigLayerStackOrdering::LowestPrecedenceFirst, true)
-    {
-        if !matches!(layer.name, ConfigLayerSource::Project { .. })
-            || layer.disabled_reason.is_none()
-        {
-            continue;
-        }
-        if let ConfigLayerSource::Project { dot_codex_folder } = &layer.name {
-            disabled_folders.push((
-                dot_codex_folder.as_path().display().to_string(),
-                layer
-                    .disabled_reason
-                    .as_ref()
-                    .map(ToString::to_string)
-                    .unwrap_or_else(|| "Config folder disabled.".to_string()),
-            ));
-        }
-    }
-
-    if disabled_folders.is_empty() {
-        return None;
-    }
-
-    let mut message = "The following config folders are disabled:\n".to_string();
-    for (index, (folder, reason)) in disabled_folders.iter().enumerate() {
-        let display_index = index + 1;
-        message.push_str(&format!("    {display_index}. {folder}\n"));
-        message.push_str(&format!("       {reason}\n"));
-    }
-
-    Some(ConfigWarningNotification {
-        summary: message,
-        details: None,
-        path: None,
-        range: None,
-    })
-}
-
 pub async fn run_main(
     codex_linux_sandbox_exe: Option<PathBuf>,
     cli_config_overrides: CliConfigOverrides,
     loader_overrides: LoaderOverrides,
-    default_analytics_enabled: bool,
 ) -> IoResult<()> {
     // Set up channels.
     let (incoming_tx, mut incoming_rx) = mpsc::channel::<JSONRPCMessage>(CHANNEL_CAPACITY);
@@ -200,57 +81,24 @@ pub async fn run_main(
         )
     })?;
     let loader_overrides_for_config_api = loader_overrides.clone();
-    let mut config_warnings = Vec::new();
-    let config = match ConfigBuilder::default()
+    let config = ConfigBuilder::default()
         .cli_overrides(cli_kv_overrides.clone())
         .loader_overrides(loader_overrides)
         .build()
         .await
-    {
-        Ok(config) => config,
-        Err(err) => {
-            let message = config_warning_from_error("Invalid configuration; using defaults.", &err);
-            config_warnings.push(message);
-            Config::load_default_with_cli_overrides(cli_kv_overrides.clone()).map_err(|e| {
-                std::io::Error::new(
-                    ErrorKind::InvalidData,
-                    format!("error loading default config after config error: {e}"),
-                )
-            })?
-        }
-    };
-
-    if let Ok(Some(err)) =
-        check_execpolicy_for_warnings(&config.features, &config.config_layer_stack).await
-    {
-        let (path, range) = exec_policy_warning_location(&err);
-        let message = ConfigWarningNotification {
-            summary: "Error parsing rules; custom rules not applied.".to_string(),
-            details: Some(err.to_string()),
-            path,
-            range,
-        };
-        config_warnings.push(message);
-    }
-
-    if let Some(warning) = project_config_warning(&config) {
-        config_warnings.push(warning);
-    }
+        .map_err(|e| {
+            std::io::Error::new(ErrorKind::InvalidData, format!("error loading config: {e}"))
+        })?;
 
     let feedback = CodexFeedback::new();
 
-    let otel = codex_core::otel_init::build_provider(
-        &config,
-        env!("CARGO_PKG_VERSION"),
-        Some("codex_app_server"),
-        default_analytics_enabled,
-    )
-    .map_err(|e| {
-        std::io::Error::new(
-            ErrorKind::InvalidData,
-            format!("error loading otel config: {e}"),
-        )
-    })?;
+    let otel =
+        codex_core::otel_init::build_provider(&config, env!("CARGO_PKG_VERSION")).map_err(|e| {
+            std::io::Error::new(
+                ErrorKind::InvalidData,
+                format!("error loading otel config: {e}"),
+            )
+        })?;
 
     // Install a simple subscriber so `tracing` output is visible.  Users can
     // control the log level with `RUST_LOG`.
@@ -273,12 +121,6 @@ pub async fn run_main(
         .with(otel_logger_layer)
         .with(otel_tracing_layer)
         .try_init();
-    for warning in &config_warnings {
-        match &warning.details {
-            Some(details) => error!("{} {}", warning.summary, details),
-            None => error!("{}", warning.summary),
-        }
-    }
 
     // Task: process incoming messages.
     let processor_handle = tokio::spawn({
@@ -292,41 +134,14 @@ pub async fn run_main(
             cli_overrides,
             loader_overrides,
             feedback.clone(),
-            config_warnings,
         );
-        let mut thread_created_rx = processor.thread_created_receiver();
         async move {
-            let mut listen_for_threads = true;
-            loop {
-                tokio::select! {
-                    msg = incoming_rx.recv() => {
-                        let Some(msg) = msg else {
-                            break;
-                        };
-                        match msg {
-                            JSONRPCMessage::Request(r) => processor.process_request(r).await,
-                            JSONRPCMessage::Response(r) => processor.process_response(r).await,
-                            JSONRPCMessage::Notification(n) => processor.process_notification(n).await,
-                            JSONRPCMessage::Error(e) => processor.process_error(e),
-                        }
-                    }
-                    created = thread_created_rx.recv(), if listen_for_threads => {
-                        match created {
-                            Ok(thread_id) => {
-                                processor.try_attach_thread_listener(thread_id).await;
-                            }
-                            Err(tokio::sync::broadcast::error::RecvError::Lagged(_)) => {
-                                // TODO(jif) handle lag.
-                                // Assumes thread creation volume is low enough that lag never happens.
-                                // If it does, we log and continue without resyncing to avoid attaching
-                                // listeners for threads that should remain unsubscribed.
-                                warn!("thread_created receiver lagged; skipping resync");
-                            }
-                            Err(tokio::sync::broadcast::error::RecvError::Closed) => {
-                                listen_for_threads = false;
-                            }
-                        }
-                    }
+            while let Some(msg) = incoming_rx.recv().await {
+                match msg {
+                    JSONRPCMessage::Request(r) => processor.process_request(r).await,
+                    JSONRPCMessage::Response(r) => processor.process_response(r).await,
+                    JSONRPCMessage::Notification(n) => processor.process_notification(n).await,
+                    JSONRPCMessage::Error(e) => processor.process_error(e),
                 }
             }
 

codex-rs/app-server/src/main.rs

@@ -20,7 +20,6 @@ fn main() -> anyhow::Result<()> {
             codex_linux_sandbox_exe,
             CliConfigOverrides::default(),
             loader_overrides,
-            false,
         )
         .await?;
         Ok(())

codex-rs/app-server/src/message_processor.rs

@@ -10,7 +10,6 @@ use codex_app_server_protocol::ClientRequest;
 use codex_app_server_protocol::ConfigBatchWriteParams;
 use codex_app_server_protocol::ConfigReadParams;
 use codex_app_server_protocol::ConfigValueWriteParams;
-use codex_app_server_protocol::ConfigWarningNotification;
 use codex_app_server_protocol::InitializeResponse;
 use codex_app_server_protocol::JSONRPCError;
 use codex_app_server_protocol::JSONRPCErrorError;
@@ -18,19 +17,14 @@ use codex_app_server_protocol::JSONRPCNotification;
 use codex_app_server_protocol::JSONRPCRequest;
 use codex_app_server_protocol::JSONRPCResponse;
 use codex_app_server_protocol::RequestId;
-use codex_app_server_protocol::ServerNotification;
 use codex_core::AuthManager;
 use codex_core::ThreadManager;
 use codex_core::config::Config;
 use codex_core::config_loader::LoaderOverrides;
-use codex_core::default_client::SetOriginatorError;
 use codex_core::default_client::USER_AGENT_SUFFIX;
 use codex_core::default_client::get_codex_user_agent;
-use codex_core::default_client::set_default_originator;
 use codex_feedback::CodexFeedback;
-use codex_protocol::ThreadId;
 use codex_protocol::protocol::SessionSource;
-use tokio::sync::broadcast;
 use toml::Value as TomlValue;
 
 pub(crate) struct MessageProcessor {
@@ -38,7 +32,6 @@ pub(crate) struct MessageProcessor {
     codex_message_processor: CodexMessageProcessor,
     config_api: ConfigApi,
     initialized: bool,
-    config_warnings: Vec<ConfigWarningNotification>,
 }
 
 impl MessageProcessor {
@@ -51,7 +44,6 @@ impl MessageProcessor {
         cli_overrides: Vec<(String, TomlValue)>,
         loader_overrides: LoaderOverrides,
         feedback: CodexFeedback,
-        config_warnings: Vec<ConfigWarningNotification>,
     ) -> Self {
         let outgoing = Arc::new(outgoing);
         let auth_manager = AuthManager::shared(
@@ -80,7 +72,6 @@ impl MessageProcessor {
             codex_message_processor,
             config_api,
             initialized: false,
-            config_warnings,
         }
     }
 
@@ -130,27 +121,6 @@ impl MessageProcessor {
                         title: _title,
                         version,
                     } = params.client_info;
-                    if let Err(error) = set_default_originator(name.clone()) {
-                        match error {
-                            SetOriginatorError::InvalidHeaderValue => {
-                                let error = JSONRPCErrorError {
-                                    code: INVALID_REQUEST_ERROR_CODE,
-                                    message: format!(
-                                        "Invalid clientInfo.name: '{name}'. Must be a valid HTTP header value."
-                                    ),
-                                    data: None,
-                                };
-                                self.outgoing.send_error(request_id, error).await;
-                                return;
-                            }
-                            SetOriginatorError::AlreadyInitialized => {
-                                // No-op. This is expected to happen if the originator is already set via env var.
-                                // TODO(owen): Once we remove support for CODEX_INTERNAL_ORIGINATOR_OVERRIDE,
-                                // this will be an unexpected state and we can return a JSON-RPC error indicating
-                                // internal server error.
-                            }
-                        }
-                    }
                     let user_agent_suffix = format!("{name}; {version}");
                     if let Ok(mut suffix) = USER_AGENT_SUFFIX.lock() {
                         *suffix = Some(user_agent_suffix);
@@ -161,15 +131,6 @@ impl MessageProcessor {
                     self.outgoing.send_response(request_id, response).await;
 
                     self.initialized = true;
-                    if !self.config_warnings.is_empty() {
-                        for notification in self.config_warnings.drain(..) {
-                            self.outgoing
-                                .send_server_notification(ServerNotification::ConfigWarning(
-                                    notification,
-                                ))
-                                .await;
-                        }
-                    }
 
                     return;
                 }
@@ -197,12 +158,6 @@ impl MessageProcessor {
             ClientRequest::ConfigBatchWrite { request_id, params } => {
                 self.handle_config_batch_write(request_id, params).await;
             }
-            ClientRequest::ConfigRequirementsRead {
-                request_id,
-                params: _,
-            } => {
-                self.handle_config_requirements_read(request_id).await;
-            }
             other => {
                 self.codex_message_processor.process_request(other).await;
             }
@@ -215,19 +170,6 @@ impl MessageProcessor {
         tracing::info!("<- notification: {:?}", notification);
     }
 
-    pub(crate) fn thread_created_receiver(&self) -> broadcast::Receiver<ThreadId> {
-        self.codex_message_processor.thread_created_receiver()
-    }
-
-    pub(crate) async fn try_attach_thread_listener(&mut self, thread_id: ThreadId) {
-        if !self.initialized {
-            return;
-        }
-        self.codex_message_processor
-            .try_attach_thread_listener(thread_id)
-            .await;
-    }
-
     /// Handle a standalone JSON-RPC response originating from the peer.
     pub(crate) async fn process_response(&mut self, response: JSONRPCResponse) {
         tracing::info!("<- response: {:?}", response);
@@ -268,11 +210,4 @@ impl MessageProcessor {
             Err(error) => self.outgoing.send_error(request_id, error).await,
         }
     }
-
-    async fn handle_config_requirements_read(&self, request_id: RequestId) {
-        match self.config_api.config_requirements_read().await {
-            Ok(response) => self.outgoing.send_response(request_id, response).await,
-            Err(error) => self.outgoing.send_error(request_id, error).await,
-        }
-    }
 }

codex-rs/app-server/src/models.rs

@@ -4,13 +4,12 @@ use codex_app_server_protocol::Model;
 use codex_app_server_protocol::ReasoningEffortOption;
 use codex_core::ThreadManager;
 use codex_core::config::Config;
-use codex_core::models_manager::manager::RefreshStrategy;
 use codex_protocol::openai_models::ModelPreset;
 use codex_protocol::openai_models::ReasoningEffortPreset;
 
 pub async fn supported_models(thread_manager: Arc<ThreadManager>, config: &Config) -> Vec<Model> {
     thread_manager
-        .list_models(config, RefreshStrategy::OnlineIfUncached)
+        .list_models(config)
         .await
         .into_iter()
         .filter(|preset| preset.show_in_picker)
@@ -28,7 +27,6 @@ fn model_from_preset(preset: ModelPreset) -> Model {
             preset.supported_reasoning_efforts,
         ),
         default_reasoning_effort: preset.default_reasoning_effort,
-        supports_personality: preset.supports_personality,
         is_default: preset.is_default,
     }
 }

codex-rs/app-server/src/outgoing_message.rs

@@ -162,7 +162,6 @@ mod tests {
     use codex_app_server_protocol::AccountRateLimitsUpdatedNotification;
     use codex_app_server_protocol::AccountUpdatedNotification;
     use codex_app_server_protocol::AuthMode;
-    use codex_app_server_protocol::ConfigWarningNotification;
     use codex_app_server_protocol::LoginChatGptCompleteNotification;
     use codex_app_server_protocol::RateLimitSnapshot;
     use codex_app_server_protocol::RateLimitWindow;
@@ -280,28 +279,4 @@ mod tests {
             "ensure the notification serializes correctly"
         );
     }
-
-    #[test]
-    fn verify_config_warning_notification_serialization() {
-        let notification = ServerNotification::ConfigWarning(ConfigWarningNotification {
-            summary: "Config error: using defaults".to_string(),
-            details: Some("error loading config: bad config".to_string()),
-            path: None,
-            range: None,
-        });
-
-        let jsonrpc_notification = OutgoingMessage::AppServerNotification(notification);
-        assert_eq!(
-            json!( {
-                "method": "configWarning",
-                "params": {
-                    "summary": "Config error: using defaults",
-                    "details": "error loading config: bad config",
-                },
-            }),
-            serde_json::to_value(jsonrpc_notification)
-                .expect("ensure the notification serializes correctly"),
-            "ensure the notification serializes correctly"
-        );
-    }
 }

codex-rs/app-server/tests/common/BUILD.bazel

@@ -1,7 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "common",
-    crate_name = "app_test_support",
-    crate_srcs = glob(["*.rs"]),
-)

codex-rs/app-server/tests/common/auth_fixtures.rs

@@ -49,16 +49,6 @@ impl ChatGptAuthFixture {
         self
     }
 
-    pub fn chatgpt_user_id(mut self, chatgpt_user_id: impl Into<String>) -> Self {
-        self.claims.chatgpt_user_id = Some(chatgpt_user_id.into());
-        self
-    }
-
-    pub fn chatgpt_account_id(mut self, chatgpt_account_id: impl Into<String>) -> Self {
-        self.claims.chatgpt_account_id = Some(chatgpt_account_id.into());
-        self
-    }
-
     pub fn email(mut self, email: impl Into<String>) -> Self {
         self.claims.email = Some(email.into());
         self
@@ -79,8 +69,6 @@ impl ChatGptAuthFixture {
 pub struct ChatGptIdTokenClaims {
     pub email: Option<String>,
     pub plan_type: Option<String>,
-    pub chatgpt_user_id: Option<String>,
-    pub chatgpt_account_id: Option<String>,
 }
 
 impl ChatGptIdTokenClaims {
@@ -97,16 +85,6 @@ impl ChatGptIdTokenClaims {
         self.plan_type = Some(plan_type.into());
         self
     }
-
-    pub fn chatgpt_user_id(mut self, chatgpt_user_id: impl Into<String>) -> Self {
-        self.chatgpt_user_id = Some(chatgpt_user_id.into());
-        self
-    }
-
-    pub fn chatgpt_account_id(mut self, chatgpt_account_id: impl Into<String>) -> Self {
-        self.chatgpt_account_id = Some(chatgpt_account_id.into());
-        self
-    }
 }
 
 pub fn encode_id_token(claims: &ChatGptIdTokenClaims) -> Result<String> {
@@ -115,20 +93,10 @@ pub fn encode_id_token(claims: &ChatGptIdTokenClaims) -> Result<String> {
     if let Some(email) = &claims.email {
         payload.insert("email".to_string(), json!(email));
     }
-    let mut auth_payload = serde_json::Map::new();
     if let Some(plan_type) = &claims.plan_type {
-        auth_payload.insert("chatgpt_plan_type".to_string(), json!(plan_type));
-    }
-    if let Some(chatgpt_user_id) = &claims.chatgpt_user_id {
-        auth_payload.insert("chatgpt_user_id".to_string(), json!(chatgpt_user_id));
-    }
-    if let Some(chatgpt_account_id) = &claims.chatgpt_account_id {
-        auth_payload.insert("chatgpt_account_id".to_string(), json!(chatgpt_account_id));
-    }
-    if !auth_payload.is_empty() {
         payload.insert(
             "https://api.openai.com/auth".to_string(),
-            serde_json::Value::Object(auth_payload),
+            json!({ "chatgpt_plan_type": plan_type }),
         );
     }
     let payload = serde_json::Value::Object(payload);

codex-rs/app-server/tests/common/lib.rs

@@ -17,21 +17,16 @@ pub use core_test_support::format_with_current_shell_non_login;
 pub use core_test_support::test_path_buf_with_windows;
 pub use core_test_support::test_tmp_path;
 pub use core_test_support::test_tmp_path_buf;
-pub use mcp_process::DEFAULT_CLIENT_NAME;
 pub use mcp_process::McpProcess;
-pub use mock_model_server::create_mock_responses_server_repeating_assistant;
-pub use mock_model_server::create_mock_responses_server_sequence;
-pub use mock_model_server::create_mock_responses_server_sequence_unchecked;
+pub use mock_model_server::create_mock_chat_completions_server;
+pub use mock_model_server::create_mock_chat_completions_server_unchecked;
 pub use models_cache::write_models_cache;
 pub use models_cache::write_models_cache_with_models;
 pub use responses::create_apply_patch_sse_response;
 pub use responses::create_exec_command_sse_response;
 pub use responses::create_final_assistant_message_sse_response;
-pub use responses::create_request_user_input_sse_response;
 pub use responses::create_shell_command_sse_response;
 pub use rollout::create_fake_rollout;
-pub use rollout::create_fake_rollout_with_text_elements;
-pub use rollout::rollout_path;
 use serde::de::DeserializeOwned;
 
 pub fn to_response<T: DeserializeOwned>(response: JSONRPCResponse) -> anyhow::Result<T> {

codex-rs/app-server/tests/common/mcp_process.rs

@@ -12,19 +12,15 @@ use tokio::process::ChildStdout;
 
 use anyhow::Context;
 use codex_app_server_protocol::AddConversationListenerParams;
-use codex_app_server_protocol::AppsListParams;
 use codex_app_server_protocol::ArchiveConversationParams;
 use codex_app_server_protocol::CancelLoginAccountParams;
 use codex_app_server_protocol::CancelLoginChatGptParams;
 use codex_app_server_protocol::ClientInfo;
 use codex_app_server_protocol::ClientNotification;
-use codex_app_server_protocol::CollaborationModeListParams;
 use codex_app_server_protocol::ConfigBatchWriteParams;
 use codex_app_server_protocol::ConfigReadParams;
 use codex_app_server_protocol::ConfigValueWriteParams;
-use codex_app_server_protocol::ExecRunParams;
 use codex_app_server_protocol::FeedbackUploadParams;
-use codex_app_server_protocol::ForkConversationParams;
 use codex_app_server_protocol::GetAccountParams;
 use codex_app_server_protocol::GetAuthStatusParams;
 use codex_app_server_protocol::InitializeParams;
@@ -47,16 +43,12 @@ use codex_app_server_protocol::SendUserTurnParams;
 use codex_app_server_protocol::ServerRequest;
 use codex_app_server_protocol::SetDefaultModelParams;
 use codex_app_server_protocol::ThreadArchiveParams;
-use codex_app_server_protocol::ThreadForkParams;
 use codex_app_server_protocol::ThreadListParams;
-use codex_app_server_protocol::ThreadLoadedListParams;
-use codex_app_server_protocol::ThreadReadParams;
 use codex_app_server_protocol::ThreadResumeParams;
 use codex_app_server_protocol::ThreadRollbackParams;
 use codex_app_server_protocol::ThreadStartParams;
 use codex_app_server_protocol::TurnInterruptParams;
 use codex_app_server_protocol::TurnStartParams;
-use codex_core::default_client::CODEX_INTERNAL_ORIGINATOR_OVERRIDE_ENV_VAR;
 use tokio::process::Command;
 
 pub struct McpProcess {
@@ -68,11 +60,9 @@ pub struct McpProcess {
     process: Child,
     stdin: ChildStdin,
     stdout: BufReader<ChildStdout>,
-    pending_messages: VecDeque<JSONRPCMessage>,
+    pending_user_messages: VecDeque<JSONRPCNotification>,
 }
 
-pub const DEFAULT_CLIENT_NAME: &str = "codex-app-server-tests";
-
 impl McpProcess {
     pub async fn new(codex_home: &Path) -> anyhow::Result<Self> {
         Self::new_with_env(codex_home, &[]).await
@@ -96,7 +86,6 @@ impl McpProcess {
         cmd.stderr(Stdio::piped());
         cmd.env("CODEX_HOME", codex_home);
         cmd.env("RUST_LOG", "debug");
-        cmd.env_remove(CODEX_INTERNAL_ORIGINATOR_OVERRIDE_ENV_VAR);
 
         for (k, v) in env_overrides {
             match v {
@@ -138,66 +127,37 @@ impl McpProcess {
             process,
             stdin,
             stdout,
-            pending_messages: VecDeque::new(),
+            pending_user_messages: VecDeque::new(),
         })
     }
 
     /// Performs the initialization handshake with the MCP server.
     pub async fn initialize(&mut self) -> anyhow::Result<()> {
-        let initialized = self
-            .initialize_with_client_info(ClientInfo {
-                name: DEFAULT_CLIENT_NAME.to_string(),
+        let params = Some(serde_json::to_value(InitializeParams {
+            client_info: ClientInfo {
+                name: "codex-app-server-tests".to_string(),
                 title: None,
                 version: "0.1.0".to_string(),
-            })
-            .await?;
-        let JSONRPCMessage::Response(_) = initialized else {
+            },
+        })?);
+        let req_id = self.send_request("initialize", params).await?;
+        let initialized = self.read_jsonrpc_message().await?;
+        let JSONRPCMessage::Response(response) = initialized else {
             unreachable!("expected JSONRPCMessage::Response for initialize, got {initialized:?}");
         };
-        Ok(())
-    }
-
-    /// Sends initialize with the provided client info and returns the response/error message.
-    pub async fn initialize_with_client_info(
-        &mut self,
-        client_info: ClientInfo,
-    ) -> anyhow::Result<JSONRPCMessage> {
-        let params = Some(serde_json::to_value(InitializeParams { client_info })?);
-        let request_id = self.send_request("initialize", params).await?;
-        let message = self.read_jsonrpc_message().await?;
-        match message {
-            JSONRPCMessage::Response(response) => {
-                if response.id != RequestId::Integer(request_id) {
-                    anyhow::bail!(
-                        "initialize response id mismatch: expected {}, got {:?}",
-                        request_id,
-                        response.id
-                    );
-                }
-
-                // Send notifications/initialized to ack the response.
-                self.send_notification(ClientNotification::Initialized)
-                    .await?;
-
-                Ok(JSONRPCMessage::Response(response))
-            }
-            JSONRPCMessage::Error(error) => {
-                if error.id != RequestId::Integer(request_id) {
-                    anyhow::bail!(
-                        "initialize error id mismatch: expected {}, got {:?}",
-                        request_id,
-                        error.id
-                    );
-                }
-                Ok(JSONRPCMessage::Error(error))
-            }
-            JSONRPCMessage::Notification(notification) => {
-                anyhow::bail!("unexpected JSONRPCMessage::Notification: {notification:?}");
-            }
-            JSONRPCMessage::Request(request) => {
-                anyhow::bail!("unexpected JSONRPCMessage::Request: {request:?}");
-            }
+        if response.id != RequestId::Integer(req_id) {
+            anyhow::bail!(
+                "initialize response id mismatch: expected {}, got {:?}",
+                req_id,
+                response.id
+            );
         }
+
+        // Send notifications/initialized to ack the response.
+        self.send_notification(ClientNotification::Initialized)
+            .await?;
+
+        Ok(())
     }
 
     /// Send a `newConversation` JSON-RPC request.
@@ -348,15 +308,6 @@ impl McpProcess {
         self.send_request("thread/resume", params).await
     }
 
-    /// Send a `thread/fork` JSON-RPC request.
-    pub async fn send_thread_fork_request(
-        &mut self,
-        params: ThreadForkParams,
-    ) -> anyhow::Result<i64> {
-        let params = Some(serde_json::to_value(params)?);
-        self.send_request("thread/fork", params).await
-    }
-
     /// Send a `thread/archive` JSON-RPC request.
     pub async fn send_thread_archive_request(
         &mut self,
@@ -384,24 +335,6 @@ impl McpProcess {
         self.send_request("thread/list", params).await
     }
 
-    /// Send a `thread/loaded/list` JSON-RPC request.
-    pub async fn send_thread_loaded_list_request(
-        &mut self,
-        params: ThreadLoadedListParams,
-    ) -> anyhow::Result<i64> {
-        let params = Some(serde_json::to_value(params)?);
-        self.send_request("thread/loaded/list", params).await
-    }
-
-    /// Send a `thread/read` JSON-RPC request.
-    pub async fn send_thread_read_request(
-        &mut self,
-        params: ThreadReadParams,
-    ) -> anyhow::Result<i64> {
-        let params = Some(serde_json::to_value(params)?);
-        self.send_request("thread/read", params).await
-    }
-
     /// Send a `model/list` JSON-RPC request.
     pub async fn send_list_models_request(
         &mut self,
@@ -411,21 +344,6 @@ impl McpProcess {
         self.send_request("model/list", params).await
     }
 
-    /// Send an `app/list` JSON-RPC request.
-    pub async fn send_apps_list_request(&mut self, params: AppsListParams) -> anyhow::Result<i64> {
-        let params = Some(serde_json::to_value(params)?);
-        self.send_request("app/list", params).await
-    }
-
-    /// Send a `collaborationMode/list` JSON-RPC request.
-    pub async fn send_list_collaboration_modes_request(
-        &mut self,
-        params: CollaborationModeListParams,
-    ) -> anyhow::Result<i64> {
-        let params = Some(serde_json::to_value(params)?);
-        self.send_request("collaborationMode/list", params).await
-    }
-
     /// Send a `resumeConversation` JSON-RPC request.
     pub async fn send_resume_conversation_request(
         &mut self,
@@ -435,15 +353,6 @@ impl McpProcess {
         self.send_request("resumeConversation", params).await
     }
 
-    /// Send a `forkConversation` JSON-RPC request.
-    pub async fn send_fork_conversation_request(
-        &mut self,
-        params: ForkConversationParams,
-    ) -> anyhow::Result<i64> {
-        let params = Some(serde_json::to_value(params)?);
-        self.send_request("forkConversation", params).await
-    }
-
     /// Send a `loginApiKey` JSON-RPC request.
     pub async fn send_login_api_key_request(
         &mut self,
@@ -467,12 +376,6 @@ impl McpProcess {
         self.send_request("turn/start", params).await
     }
 
-    /// Send an `exec/run` JSON-RPC request (v2).
-    pub async fn send_exec_run_request(&mut self, params: ExecRunParams) -> anyhow::Result<i64> {
-        let params = Some(serde_json::to_value(params)?);
-        self.send_request("exec/run", params).await
-    }
-
     /// Send a `turn/interrupt` JSON-RPC request (v2).
     pub async fn send_turn_interrupt_request(
         &mut self,
@@ -641,16 +544,27 @@ impl McpProcess {
     pub async fn read_stream_until_request_message(&mut self) -> anyhow::Result<ServerRequest> {
         eprintln!("in read_stream_until_request_message()");
 
-        let message = self
-            .read_stream_until_message(|message| matches!(message, JSONRPCMessage::Request(_)))
-            .await?;
+        loop {
+            let message = self.read_jsonrpc_message().await?;
 
-        let JSONRPCMessage::Request(jsonrpc_request) = message else {
-            unreachable!("expected JSONRPCMessage::Request, got {message:?}");
-        };
-        jsonrpc_request
-            .try_into()
-            .with_context(|| "failed to deserialize ServerRequest from JSONRPCRequest")
+            match message {
+                JSONRPCMessage::Notification(notification) => {
+                    eprintln!("notification: {notification:?}");
+                    self.enqueue_user_message(notification);
+                }
+                JSONRPCMessage::Request(jsonrpc_request) => {
+                    return jsonrpc_request.try_into().with_context(
+                        || "failed to deserialize ServerRequest from JSONRPCRequest",
+                    );
+                }
+                JSONRPCMessage::Error(_) => {
+                    anyhow::bail!("unexpected JSONRPCMessage::Error: {message:?}");
+                }
+                JSONRPCMessage::Response(_) => {
+                    anyhow::bail!("unexpected JSONRPCMessage::Response: {message:?}");
+                }
+            }
+        }
     }
 
     pub async fn read_stream_until_response_message(
@@ -659,32 +573,52 @@ impl McpProcess {
     ) -> anyhow::Result<JSONRPCResponse> {
         eprintln!("in read_stream_until_response_message({request_id:?})");
 
-        let message = self
-            .read_stream_until_message(|message| {
-                Self::message_request_id(message) == Some(&request_id)
-            })
-            .await?;
-
-        let JSONRPCMessage::Response(response) = message else {
-            unreachable!("expected JSONRPCMessage::Response, got {message:?}");
-        };
-        Ok(response)
+        loop {
+            let message = self.read_jsonrpc_message().await?;
+            match message {
+                JSONRPCMessage::Notification(notification) => {
+                    eprintln!("notification: {notification:?}");
+                    self.enqueue_user_message(notification);
+                }
+                JSONRPCMessage::Request(_) => {
+                    anyhow::bail!("unexpected JSONRPCMessage::Request: {message:?}");
+                }
+                JSONRPCMessage::Error(_) => {
+                    anyhow::bail!("unexpected JSONRPCMessage::Error: {message:?}");
+                }
+                JSONRPCMessage::Response(jsonrpc_response) => {
+                    if jsonrpc_response.id == request_id {
+                        return Ok(jsonrpc_response);
+                    }
+                }
+            }
+        }
     }
 
     pub async fn read_stream_until_error_message(
         &mut self,
         request_id: RequestId,
     ) -> anyhow::Result<JSONRPCError> {
-        let message = self
-            .read_stream_until_message(|message| {
-                Self::message_request_id(message) == Some(&request_id)
-            })
-            .await?;
-
-        let JSONRPCMessage::Error(err) = message else {
-            unreachable!("expected JSONRPCMessage::Error, got {message:?}");
-        };
-        Ok(err)
+        loop {
+            let message = self.read_jsonrpc_message().await?;
+            match message {
+                JSONRPCMessage::Notification(notification) => {
+                    eprintln!("notification: {notification:?}");
+                    self.enqueue_user_message(notification);
+                }
+                JSONRPCMessage::Request(_) => {
+                    anyhow::bail!("unexpected JSONRPCMessage::Request: {message:?}");
+                }
+                JSONRPCMessage::Response(_) => {
+                    // Keep scanning; we're waiting for an error with matching id.
+                }
+                JSONRPCMessage::Error(err) => {
+                    if err.id == request_id {
+                        return Ok(err);
+                    }
+                }
+            }
+        }
     }
 
     pub async fn read_stream_until_notification_message(
@@ -693,64 +627,46 @@ impl McpProcess {
     ) -> anyhow::Result<JSONRPCNotification> {
         eprintln!("in read_stream_until_notification_message({method})");
 
-        let message = self
-            .read_stream_until_message(|message| {
-                matches!(
-                    message,
-                    JSONRPCMessage::Notification(notification) if notification.method == method
-                )
-            })
-            .await?;
-
-        let JSONRPCMessage::Notification(notification) = message else {
-            unreachable!("expected JSONRPCMessage::Notification, got {message:?}");
-        };
-        Ok(notification)
-    }
-
-    /// Clears any buffered messages so future reads only consider new stream items.
-    ///
-    /// We call this when e.g. we want to validate against the next turn and no longer care about
-    /// messages buffered from the prior turn.
-    pub fn clear_message_buffer(&mut self) {
-        self.pending_messages.clear();
-    }
-
-    /// Reads the stream until a message matches `predicate`, buffering any non-matching messages
-    /// for later reads.
-    async fn read_stream_until_message<F>(&mut self, predicate: F) -> anyhow::Result<JSONRPCMessage>
-    where
-        F: Fn(&JSONRPCMessage) -> bool,
-    {
-        if let Some(message) = self.take_pending_message(&predicate) {
-            return Ok(message);
+        if let Some(notification) = self.take_pending_notification_by_method(method) {
+            return Ok(notification);
         }
 
         loop {
             let message = self.read_jsonrpc_message().await?;
-            if predicate(&message) {
-                return Ok(message);
+            match message {
+                JSONRPCMessage::Notification(notification) => {
+                    if notification.method == method {
+                        return Ok(notification);
+                    }
+                    self.enqueue_user_message(notification);
+                }
+                JSONRPCMessage::Request(_) => {
+                    anyhow::bail!("unexpected JSONRPCMessage::Request: {message:?}");
+                }
+                JSONRPCMessage::Error(_) => {
+                    anyhow::bail!("unexpected JSONRPCMessage::Error: {message:?}");
+                }
+                JSONRPCMessage::Response(_) => {
+                    anyhow::bail!("unexpected JSONRPCMessage::Response: {message:?}");
+                }
             }
-            self.pending_messages.push_back(message);
         }
     }
 
-    fn take_pending_message<F>(&mut self, predicate: &F) -> Option<JSONRPCMessage>
-    where
-        F: Fn(&JSONRPCMessage) -> bool,
-    {
-        if let Some(pos) = self.pending_messages.iter().position(predicate) {
-            return self.pending_messages.remove(pos);
+    fn take_pending_notification_by_method(&mut self, method: &str) -> Option<JSONRPCNotification> {
+        if let Some(pos) = self
+            .pending_user_messages
+            .iter()
+            .position(|notification| notification.method == method)
+        {
+            return self.pending_user_messages.remove(pos);
         }
         None
     }
 
-    fn message_request_id(message: &JSONRPCMessage) -> Option<&RequestId> {
-        match message {
-            JSONRPCMessage::Request(request) => Some(&request.id),
-            JSONRPCMessage::Response(response) => Some(&response.id),
-            JSONRPCMessage::Error(err) => Some(&err.id),
-            JSONRPCMessage::Notification(_) => None,
+    fn enqueue_user_message(&mut self, notification: JSONRPCNotification) {
+        if notification.method == "codex/event/user_message" {
+            self.pending_user_messages.push_back(notification);
         }
     }
 }

codex-rs/app-server/tests/common/mock_model_server.rs

@@ -1,18 +1,17 @@
 use std::sync::atomic::AtomicUsize;
 use std::sync::atomic::Ordering;
 
-use core_test_support::responses;
 use wiremock::Mock;
 use wiremock::MockServer;
 use wiremock::Respond;
 use wiremock::ResponseTemplate;
 use wiremock::matchers::method;
-use wiremock::matchers::path_regex;
+use wiremock::matchers::path;
 
 /// Create a mock server that will provide the responses, in order, for
-/// requests to the `/v1/responses` endpoint.
-pub async fn create_mock_responses_server_sequence(responses: Vec<String>) -> MockServer {
-    let server = responses::start_mock_server().await;
+/// requests to the `/v1/chat/completions` endpoint.
+pub async fn create_mock_chat_completions_server(responses: Vec<String>) -> MockServer {
+    let server = MockServer::start().await;
 
     let num_calls = responses.len();
     let seq_responder = SeqResponder {
@@ -21,7 +20,7 @@ pub async fn create_mock_responses_server_sequence(responses: Vec<String>) -> Mo
     };
 
     Mock::given(method("POST"))
-        .and(path_regex(".*/responses$"))
+        .and(path("/v1/chat/completions"))
         .respond_with(seq_responder)
         .expect(num_calls as u64)
         .mount(&server)
@@ -30,10 +29,10 @@ pub async fn create_mock_responses_server_sequence(responses: Vec<String>) -> Mo
     server
 }
 
-/// Same as `create_mock_responses_server_sequence` but does not enforce an
+/// Same as `create_mock_chat_completions_server` but does not enforce an
 /// expectation on the number of calls.
-pub async fn create_mock_responses_server_sequence_unchecked(responses: Vec<String>) -> MockServer {
-    let server = responses::start_mock_server().await;
+pub async fn create_mock_chat_completions_server_unchecked(responses: Vec<String>) -> MockServer {
+    let server = MockServer::start().await;
 
     let seq_responder = SeqResponder {
         num_calls: AtomicUsize::new(0),
@@ -41,7 +40,7 @@ pub async fn create_mock_responses_server_sequence_unchecked(responses: Vec<Stri
     };
 
     Mock::given(method("POST"))
-        .and(path_regex(".*/responses$"))
+        .and(path("/v1/chat/completions"))
         .respond_with(seq_responder)
         .mount(&server)
         .await;
@@ -58,24 +57,10 @@ impl Respond for SeqResponder {
     fn respond(&self, _: &wiremock::Request) -> ResponseTemplate {
         let call_num = self.num_calls.fetch_add(1, Ordering::SeqCst);
         match self.responses.get(call_num) {
-            Some(response) => responses::sse_response(response.clone()),
+            Some(response) => ResponseTemplate::new(200)
+                .insert_header("content-type", "text/event-stream")
+                .set_body_raw(response.clone(), "text/event-stream"),
             None => panic!("no response for {call_num}"),
         }
     }
 }
-
-/// Create a mock responses API server that returns the same assistant message for every request.
-pub async fn create_mock_responses_server_repeating_assistant(message: &str) -> MockServer {
-    let server = responses::start_mock_server().await;
-    let body = responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_assistant_message("msg-1", message),
-        responses::ev_completed("resp-1"),
-    ]);
-    Mock::given(method("POST"))
-        .and(path_regex(".*/responses$"))
-        .respond_with(responses::sse_response(body))
-        .mount(&server)
-        .await;
-    server
-}

codex-rs/app-server/tests/common/models_cache.rs

@@ -25,9 +25,8 @@ fn preset_to_info(preset: &ModelPreset, priority: i32) -> ModelInfo {
         },
         supported_in_api: true,
         priority,
-        upgrade: preset.upgrade.as_ref().map(|u| u.into()),
+        upgrade: preset.upgrade.as_ref().map(|u| u.id.clone()),
         base_instructions: "base instructions".to_string(),
-        model_instructions_template: None,
         supports_reasoning_summaries: false,
         support_verbosity: false,
         default_verbosity: None,

codex-rs/app-server/tests/common/responses.rs

@@ -1,4 +1,3 @@
-use core_test_support::responses;
 use serde_json::json;
 use std::path::Path;
 
@@ -15,30 +14,85 @@ pub fn create_shell_command_sse_response(
         "workdir": workdir.map(|w| w.to_string_lossy()),
         "timeout_ms": timeout_ms
     }))?;
-    Ok(responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_function_call(call_id, "shell_command", &tool_call_arguments),
-        responses::ev_completed("resp-1"),
-    ]))
+    let tool_call = json!({
+        "choices": [
+            {
+                "delta": {
+                    "tool_calls": [
+                        {
+                            "id": call_id,
+                            "function": {
+                                "name": "shell_command",
+                                "arguments": tool_call_arguments
+                            }
+                        }
+                    ]
+                },
+                "finish_reason": "tool_calls"
+            }
+        ]
+    });
+
+    let sse = format!(
+        "data: {}\n\ndata: DONE\n\n",
+        serde_json::to_string(&tool_call)?
+    );
+    Ok(sse)
 }
 
 pub fn create_final_assistant_message_sse_response(message: &str) -> anyhow::Result<String> {
-    Ok(responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_assistant_message("msg-1", message),
-        responses::ev_completed("resp-1"),
-    ]))
+    let assistant_message = json!({
+        "choices": [
+            {
+                "delta": {
+                    "content": message
+                },
+                "finish_reason": "stop"
+            }
+        ]
+    });
+
+    let sse = format!(
+        "data: {}\n\ndata: DONE\n\n",
+        serde_json::to_string(&assistant_message)?
+    );
+    Ok(sse)
 }
 
 pub fn create_apply_patch_sse_response(
     patch_content: &str,
     call_id: &str,
 ) -> anyhow::Result<String> {
-    Ok(responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_apply_patch_shell_command_call_via_heredoc(call_id, patch_content),
-        responses::ev_completed("resp-1"),
-    ]))
+    // Use shell_command to call apply_patch with heredoc format
+    let command = format!("apply_patch <<'EOF'\n{patch_content}\nEOF");
+    let tool_call_arguments = serde_json::to_string(&json!({
+        "command": command
+    }))?;
+
+    let tool_call = json!({
+        "choices": [
+            {
+                "delta": {
+                    "tool_calls": [
+                        {
+                            "id": call_id,
+                            "function": {
+                                "name": "shell_command",
+                                "arguments": tool_call_arguments
+                            }
+                        }
+                    ]
+                },
+                "finish_reason": "tool_calls"
+            }
+        ]
+    });
+
+    let sse = format!(
+        "data: {}\n\ndata: DONE\n\n",
+        serde_json::to_string(&tool_call)?
+    );
+    Ok(sse)
 }
 
 pub fn create_exec_command_sse_response(call_id: &str) -> anyhow::Result<String> {
@@ -54,32 +108,28 @@ pub fn create_exec_command_sse_response(call_id: &str) -> anyhow::Result<String>
         "cmd": command.join(" "),
         "yield_time_ms": 500
     }))?;
-    Ok(responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_function_call(call_id, "exec_command", &tool_call_arguments),
-        responses::ev_completed("resp-1"),
-    ]))
-}
+    let tool_call = json!({
+        "choices": [
+            {
+                "delta": {
+                    "tool_calls": [
+                        {
+                            "id": call_id,
+                            "function": {
+                                "name": "exec_command",
+                                "arguments": tool_call_arguments
+                            }
+                        }
+                    ]
+                },
+                "finish_reason": "tool_calls"
+            }
+        ]
+    });
 
-pub fn create_request_user_input_sse_response(call_id: &str) -> anyhow::Result<String> {
-    let tool_call_arguments = serde_json::to_string(&json!({
-        "questions": [{
-            "id": "confirm_path",
-            "header": "Confirm",
-            "question": "Proceed with the plan?",
-            "options": [{
-                "label": "Yes (Recommended)",
-                "description": "Continue the current plan."
-            }, {
-                "label": "No",
-                "description": "Stop and revisit the approach."
-            }]
-        }]
-    }))?;
-
-    Ok(responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_function_call(call_id, "request_user_input", &tool_call_arguments),
-        responses::ev_completed("resp-1"),
-    ]))
+    let sse = format!(
+        "data: {}\n\ndata: DONE\n\n",
+        serde_json::to_string(&tool_call)?
+    );
+    Ok(sse)
 }

codex-rs/app-server/tests/common/rollout.rs

@@ -6,23 +6,10 @@ use codex_protocol::protocol::SessionMetaLine;
 use codex_protocol::protocol::SessionSource;
 use serde_json::json;
 use std::fs;
-use std::fs::FileTimes;
 use std::path::Path;
 use std::path::PathBuf;
 use uuid::Uuid;
 
-pub fn rollout_path(codex_home: &Path, filename_ts: &str, thread_id: &str) -> PathBuf {
-    let year = &filename_ts[0..4];
-    let month = &filename_ts[5..7];
-    let day = &filename_ts[8..10];
-    codex_home
-        .join("sessions")
-        .join(year)
-        .join(month)
-        .join(day)
-        .join(format!("rollout-{filename_ts}-{thread_id}.jsonl"))
-}
-
 /// Create a minimal rollout file under `CODEX_HOME/sessions/YYYY/MM/DD/`.
 ///
 /// - `filename_ts` is the filename timestamp component in `YYYY-MM-DDThh-mm-ss` format.
@@ -43,23 +30,25 @@ pub fn create_fake_rollout(
     let uuid_str = uuid.to_string();
     let conversation_id = ThreadId::from_string(&uuid_str)?;
 
-    let file_path = rollout_path(codex_home, filename_ts, &uuid_str);
-    let dir = file_path
-        .parent()
-        .ok_or_else(|| anyhow::anyhow!("missing rollout parent directory"))?;
-    fs::create_dir_all(dir)?;
+    // sessions/YYYY/MM/DD derived from filename_ts (YYYY-MM-DDThh-mm-ss)
+    let year = &filename_ts[0..4];
+    let month = &filename_ts[5..7];
+    let day = &filename_ts[8..10];
+    let dir = codex_home.join("sessions").join(year).join(month).join(day);
+    fs::create_dir_all(&dir)?;
+
+    let file_path = dir.join(format!("rollout-{filename_ts}-{uuid}.jsonl"));
 
     // Build JSONL lines
     let meta = SessionMeta {
         id: conversation_id,
-        forked_from_id: None,
         timestamp: meta_rfc3339.to_string(),
         cwd: PathBuf::from("/"),
         originator: "codex".to_string(),
         cli_version: "0.0.0".to_string(),
+        instructions: None,
         source: SessionSource::Cli,
         model_provider: model_provider.map(str::to_string),
-        base_instructions: None,
     };
     let payload = serde_json::to_value(SessionMetaLine {
         meta,
@@ -95,85 +84,6 @@ pub fn create_fake_rollout(
         .to_string(),
     ];
 
-    fs::write(&file_path, lines.join("\n") + "\n")?;
-    let parsed = chrono::DateTime::parse_from_rfc3339(meta_rfc3339)?.with_timezone(&chrono::Utc);
-    let times = FileTimes::new().set_modified(parsed.into());
-    std::fs::OpenOptions::new()
-        .append(true)
-        .open(&file_path)?
-        .set_times(times)?;
-    Ok(uuid_str)
-}
-
-pub fn create_fake_rollout_with_text_elements(
-    codex_home: &Path,
-    filename_ts: &str,
-    meta_rfc3339: &str,
-    preview: &str,
-    text_elements: Vec<serde_json::Value>,
-    model_provider: Option<&str>,
-    git_info: Option<GitInfo>,
-) -> Result<String> {
-    let uuid = Uuid::new_v4();
-    let uuid_str = uuid.to_string();
-    let conversation_id = ThreadId::from_string(&uuid_str)?;
-
-    // sessions/YYYY/MM/DD derived from filename_ts (YYYY-MM-DDThh-mm-ss)
-    let year = &filename_ts[0..4];
-    let month = &filename_ts[5..7];
-    let day = &filename_ts[8..10];
-    let dir = codex_home.join("sessions").join(year).join(month).join(day);
-    fs::create_dir_all(&dir)?;
-
-    let file_path = dir.join(format!("rollout-{filename_ts}-{uuid}.jsonl"));
-
-    // Build JSONL lines
-    let meta = SessionMeta {
-        id: conversation_id,
-        forked_from_id: None,
-        timestamp: meta_rfc3339.to_string(),
-        cwd: PathBuf::from("/"),
-        originator: "codex".to_string(),
-        cli_version: "0.0.0".to_string(),
-        source: SessionSource::Cli,
-        model_provider: model_provider.map(str::to_string),
-        base_instructions: None,
-    };
-    let payload = serde_json::to_value(SessionMetaLine {
-        meta,
-        git: git_info,
-    })?;
-
-    let lines = [
-        json!( {
-            "timestamp": meta_rfc3339,
-            "type": "session_meta",
-            "payload": payload
-        })
-        .to_string(),
-        json!( {
-            "timestamp": meta_rfc3339,
-            "type":"response_item",
-            "payload": {
-                "type":"message",
-                "role":"user",
-                "content":[{"type":"input_text","text": preview}]
-            }
-        })
-        .to_string(),
-        json!( {
-            "timestamp": meta_rfc3339,
-            "type":"event_msg",
-            "payload": {
-                "type":"user_message",
-                "message": preview,
-                "text_elements": text_elements,
-                "local_images": []
-            }
-        })
-        .to_string(),
-    ];
-
     fs::write(file_path, lines.join("\n") + "\n")?;
     Ok(uuid_str)
 }

codex-rs/app-server/tests/suite/auth.rs

@@ -37,7 +37,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "http://127.0.0.1:0/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 {requires_line}

codex-rs/app-server/tests/suite/codex_message_processor_flow.rs

@@ -1,7 +1,7 @@
 use anyhow::Result;
 use app_test_support::McpProcess;
 use app_test_support::create_final_assistant_message_sse_response;
-use app_test_support::create_mock_responses_server_sequence;
+use app_test_support::create_mock_chat_completions_server;
 use app_test_support::create_shell_command_sse_response;
 use app_test_support::format_with_current_shell;
 use app_test_support::to_response;
@@ -65,7 +65,7 @@ async fn test_codex_jsonrpc_conversation_flow() -> Result<()> {
         )?,
         create_final_assistant_message_sse_response("Enjoy your new git repo!")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
+    let server = create_mock_chat_completions_server(responses).await;
     create_config_toml(&codex_home, &server.uri())?;
 
     // Start MCP server and initialize.
@@ -108,17 +108,12 @@ async fn test_codex_jsonrpc_conversation_flow() -> Result<()> {
     let AddConversationSubscriptionResponse { subscription_id } =
         to_response::<AddConversationSubscriptionResponse>(add_listener_resp)?;
 
-    // Drop any buffered events from conversation setup to avoid
-    // matching an earlier task_complete.
-    mcp.clear_message_buffer();
-
     // 3) sendUserMessage (should trigger notifications; we only validate an OK response)
     let send_user_id = mcp
         .send_send_user_message_request(SendUserMessageParams {
             conversation_id,
             items: vec![codex_app_server_protocol::InputItem::Text {
                 text: "text".to_string(),
-                text_elements: Vec::new(),
             }],
         })
         .await?;
@@ -129,38 +124,13 @@ async fn test_codex_jsonrpc_conversation_flow() -> Result<()> {
     .await??;
     let SendUserMessageResponse {} = to_response::<SendUserMessageResponse>(send_user_resp)?;
 
-    let task_started_notification: JSONRPCNotification = timeout(
+    // Verify the task_finished notification is received.
+    // Note this also ensures that the final request to the server was made.
+    let task_finished_notification: JSONRPCNotification = timeout(
         DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("codex/event/task_started"),
+        mcp.read_stream_until_notification_message("codex/event/task_complete"),
     )
     .await??;
-    let task_started_event: Event = serde_json::from_value(
-        task_started_notification
-            .params
-            .clone()
-            .expect("task_started should have params"),
-    )
-    .expect("task_started should deserialize to Event");
-
-    // Verify the task_finished notification for this turn is received.
-    // Note this also ensures that the final request to the server was made.
-    let task_finished_notification: JSONRPCNotification = loop {
-        let notification: JSONRPCNotification = timeout(
-            DEFAULT_READ_TIMEOUT,
-            mcp.read_stream_until_notification_message("codex/event/task_complete"),
-        )
-        .await??;
-        let event: Event = serde_json::from_value(
-            notification
-                .params
-                .clone()
-                .expect("task_complete should have params"),
-        )
-        .expect("task_complete should deserialize to Event");
-        if event.id == task_started_event.id {
-            break notification;
-        }
-    };
     let serde_json::Value::Object(map) = task_finished_notification
         .params
         .expect("notification should have params")
@@ -227,7 +197,7 @@ async fn test_send_user_turn_changes_approval_policy_behavior() -> Result<()> {
         )?,
         create_final_assistant_message_sse_response("done 2")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
+    let server = create_mock_chat_completions_server(responses).await;
     create_config_toml(&codex_home, &server.uri())?;
 
     // Start MCP server and initialize.
@@ -271,7 +241,6 @@ async fn test_send_user_turn_changes_approval_policy_behavior() -> Result<()> {
             conversation_id,
             items: vec![codex_app_server_protocol::InputItem::Text {
                 text: "run python".to_string(),
-                text_elements: Vec::new(),
             }],
         })
         .await?;
@@ -314,7 +283,7 @@ async fn test_send_user_turn_changes_approval_policy_behavior() -> Result<()> {
     )
     .await?;
 
-    // Wait for first TurnComplete
+    // Wait for first TaskComplete
     let _ = timeout(
         DEFAULT_READ_TIMEOUT,
         mcp.read_stream_until_notification_message("codex/event/task_complete"),
@@ -327,7 +296,6 @@ async fn test_send_user_turn_changes_approval_policy_behavior() -> Result<()> {
             conversation_id,
             items: vec![codex_app_server_protocol::InputItem::Text {
                 text: "run python again".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: working_directory.clone(),
             approval_policy: AskForApproval::Never,
@@ -395,7 +363,7 @@ async fn test_send_user_turn_updates_sandbox_and_cwd_between_turns() -> Result<(
         )?,
         create_final_assistant_message_sse_response("done second")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
+    let server = create_mock_chat_completions_server(responses).await;
     create_config_toml(&codex_home, &server.uri())?;
 
     let mut mcp = McpProcess::new(&codex_home).await?;
@@ -437,7 +405,6 @@ async fn test_send_user_turn_updates_sandbox_and_cwd_between_turns() -> Result<(
             conversation_id,
             items: vec![InputItem::Text {
                 text: "first turn".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: first_cwd.clone(),
             approval_policy: AskForApproval::Never,
@@ -463,14 +430,12 @@ async fn test_send_user_turn_updates_sandbox_and_cwd_between_turns() -> Result<(
         mcp.read_stream_until_notification_message("codex/event/task_complete"),
     )
     .await??;
-    mcp.clear_message_buffer();
 
     let second_turn_id = mcp
         .send_send_user_turn_request(SendUserTurnParams {
             conversation_id,
             items: vec![InputItem::Text {
                 text: "second turn".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: second_cwd.clone(),
             approval_policy: AskForApproval::Never,
@@ -534,7 +499,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/app-server/tests/suite/create_thread.rs

@@ -1,6 +1,7 @@
 use anyhow::Result;
 use app_test_support::McpProcess;
 use app_test_support::create_final_assistant_message_sse_response;
+use app_test_support::create_mock_chat_completions_server;
 use app_test_support::to_response;
 use codex_app_server_protocol::AddConversationListenerParams;
 use codex_app_server_protocol::AddConversationSubscriptionResponse;
@@ -11,7 +12,6 @@ use codex_app_server_protocol::NewConversationResponse;
 use codex_app_server_protocol::RequestId;
 use codex_app_server_protocol::SendUserMessageParams;
 use codex_app_server_protocol::SendUserMessageResponse;
-use core_test_support::responses;
 use pretty_assertions::assert_eq;
 use serde_json::json;
 use std::path::Path;
@@ -23,9 +23,8 @@ const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn test_conversation_create_and_send_message_ok() -> Result<()> {
     // Mock server – we won't strictly rely on it, but provide one to satisfy any model wiring.
-    let response_body = create_final_assistant_message_sse_response("Done")?;
-    let server = responses::start_mock_server().await;
-    let response_mock = responses::mount_sse_sequence(&server, vec![response_body]).await;
+    let responses = vec![create_final_assistant_message_sse_response("Done")?];
+    let server = create_mock_chat_completions_server(responses).await;
 
     // Temporary Codex home with config pointing at the mock server.
     let codex_home = TempDir::new()?;
@@ -77,7 +76,6 @@ async fn test_conversation_create_and_send_message_ok() -> Result<()> {
             conversation_id,
             items: vec![InputItem::Text {
                 text: "Hello".to_string(),
-                text_elements: Vec::new(),
             }],
         })
         .await?;
@@ -88,30 +86,32 @@ async fn test_conversation_create_and_send_message_ok() -> Result<()> {
     .await??;
     let _ok: SendUserMessageResponse = to_response::<SendUserMessageResponse>(send_resp)?;
 
-    // Avoid race condition by waiting for the mock server to receive the responses request.
+    // avoid race condition by waiting for the mock server to receive the chat.completions request
     let deadline = std::time::Instant::now() + DEFAULT_READ_TIMEOUT;
     let requests = loop {
-        let requests = response_mock.requests();
+        let requests = server.received_requests().await.unwrap_or_default();
         if !requests.is_empty() {
             break requests;
         }
         if std::time::Instant::now() >= deadline {
-            panic!("mock server did not receive the responses request in time");
+            panic!("mock server did not receive the chat.completions request in time");
         }
         tokio::time::sleep(std::time::Duration::from_millis(10)).await;
     };
 
-    // Verify the outbound request body matches expectations for Responses.
+    // Verify the outbound request body matches expectations for Chat Completions.
     let request = requests
         .first()
         .expect("mock server should have received at least one request");
-    let body = request.body_json();
+    let body = request.body_json::<serde_json::Value>()?;
     assert_eq!(body["model"], json!("o3"));
-    let user_texts = request.message_input_texts("user");
-    assert!(
-        user_texts.iter().any(|text| text == "Hello"),
-        "expected user input to include Hello, got {user_texts:?}"
-    );
+    assert!(body["stream"].as_bool().unwrap_or(false));
+    let messages = body["messages"]
+        .as_array()
+        .expect("messages should be array");
+    let last = messages.last().expect("at least one message");
+    assert_eq!(last["role"], json!("user"));
+    assert_eq!(last["content"], json!("Hello"));
 
     drop(server);
     Ok(())
@@ -133,7 +133,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/app-server/tests/suite/fork_thread.rs

@@ -1,140 +0,0 @@
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::create_fake_rollout;
-use app_test_support::to_response;
-use codex_app_server_protocol::ForkConversationParams;
-use codex_app_server_protocol::ForkConversationResponse;
-use codex_app_server_protocol::JSONRPCNotification;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::NewConversationParams; // reused for overrides shape
-use codex_app_server_protocol::RequestId;
-use codex_app_server_protocol::ServerNotification;
-use codex_app_server_protocol::SessionConfiguredNotification;
-use codex_core::protocol::EventMsg;
-use pretty_assertions::assert_eq;
-use tempfile::TempDir;
-use tokio::time::timeout;
-
-const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn fork_conversation_creates_new_rollout() -> Result<()> {
-    let codex_home = TempDir::new()?;
-
-    let preview = "Hello A";
-    let conversation_id = create_fake_rollout(
-        codex_home.path(),
-        "2025-01-02T12-00-00",
-        "2025-01-02T12:00:00Z",
-        preview,
-        Some("openai"),
-        None,
-    )?;
-
-    let original_path = codex_home
-        .path()
-        .join("sessions")
-        .join("2025")
-        .join("01")
-        .join("02")
-        .join(format!(
-            "rollout-2025-01-02T12-00-00-{conversation_id}.jsonl"
-        ));
-    assert!(
-        original_path.exists(),
-        "expected original rollout to exist at {}",
-        original_path.display()
-    );
-    let original_contents = std::fs::read_to_string(&original_path)?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let fork_req_id = mcp
-        .send_fork_conversation_request(ForkConversationParams {
-            path: Some(original_path.clone()),
-            conversation_id: None,
-            overrides: Some(NewConversationParams {
-                model: Some("o3".to_string()),
-                ..Default::default()
-            }),
-        })
-        .await?;
-
-    // Expect a sessionConfigured notification for the forked session.
-    let notification: JSONRPCNotification = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("sessionConfigured"),
-    )
-    .await??;
-    let session_configured: ServerNotification = notification.try_into()?;
-    let ServerNotification::SessionConfigured(SessionConfiguredNotification {
-        model,
-        session_id,
-        rollout_path,
-        initial_messages: session_initial_messages,
-        ..
-    }) = session_configured
-    else {
-        unreachable!("expected sessionConfigured notification");
-    };
-
-    assert_eq!(model, "o3");
-    assert_ne!(
-        session_id.to_string(),
-        conversation_id,
-        "expected a new conversation id when forking"
-    );
-    assert_ne!(
-        rollout_path, original_path,
-        "expected a new rollout path when forking"
-    );
-    assert!(
-        rollout_path.exists(),
-        "expected forked rollout to exist at {}",
-        rollout_path.display()
-    );
-
-    let session_initial_messages =
-        session_initial_messages.expect("expected initial messages when forking from rollout");
-    match session_initial_messages.as_slice() {
-        [EventMsg::UserMessage(message)] => {
-            assert_eq!(message.message, preview);
-        }
-        other => panic!("unexpected initial messages from rollout fork: {other:#?}"),
-    }
-
-    // Then the response for forkConversation.
-    let fork_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(fork_req_id)),
-    )
-    .await??;
-    let ForkConversationResponse {
-        conversation_id: forked_id,
-        model: forked_model,
-        initial_messages: response_initial_messages,
-        rollout_path: response_rollout_path,
-    } = to_response::<ForkConversationResponse>(fork_resp)?;
-
-    assert_eq!(forked_model, "o3");
-    assert_eq!(response_rollout_path, rollout_path);
-    assert_ne!(forked_id.to_string(), conversation_id);
-
-    let response_initial_messages =
-        response_initial_messages.expect("expected initial messages in fork response");
-    match response_initial_messages.as_slice() {
-        [EventMsg::UserMessage(message)] => {
-            assert_eq!(message.message, preview);
-        }
-        other => panic!("unexpected initial messages in fork response: {other:#?}"),
-    }
-
-    let after_contents = std::fs::read_to_string(&original_path)?;
-    assert_eq!(
-        after_contents, original_contents,
-        "fork should not mutate the original rollout file"
-    );
-
-    Ok(())
-}

codex-rs/app-server/tests/suite/interrupt.rs

@@ -18,7 +18,7 @@ use tempfile::TempDir;
 use tokio::time::timeout;
 
 use app_test_support::McpProcess;
-use app_test_support::create_mock_responses_server_sequence;
+use app_test_support::create_mock_chat_completions_server;
 use app_test_support::create_shell_command_sse_response;
 use app_test_support::to_response;
 
@@ -56,7 +56,7 @@ async fn shell_command_interruption() -> anyhow::Result<()> {
     std::fs::create_dir(&working_directory)?;
 
     // Create mock server with a single SSE response: the long sleep command
-    let server = create_mock_responses_server_sequence(vec![create_shell_command_sse_response(
+    let server = create_mock_chat_completions_server(vec![create_shell_command_sse_response(
         shell_command.clone(),
         Some(&working_directory),
         Some(10_000), // 10 seconds timeout in ms
@@ -105,7 +105,6 @@ async fn shell_command_interruption() -> anyhow::Result<()> {
             conversation_id,
             items: vec![codex_app_server_protocol::InputItem::Text {
                 text: "run first sleep command".to_string(),
-                text_elements: Vec::new(),
             }],
         })
         .await?;
@@ -154,7 +153,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/app-server/tests/suite/list_resume.rs

@@ -307,7 +307,6 @@ async fn test_list_and_resume_conversations() -> Result<()> {
         content: vec![ContentItem::InputText {
             text: fork_history_text.to_string(),
         }],
-        end_turn: None,
     }];
     let resume_with_history_req_id = mcp
         .send_resume_conversation_request(ResumeConversationParams {

codex-rs/app-server/tests/suite/login.rs

@@ -32,7 +32,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "http://127.0.0.1:0/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#,

codex-rs/app-server/tests/suite/mod.rs

@@ -3,7 +3,6 @@ mod auth;
 mod codex_message_processor_flow;
 mod config;
 mod create_thread;
-mod fork_thread;
 mod fuzzy_file_search;
 mod interrupt;
 mod list_resume;

codex-rs/app-server/tests/suite/output_schema.rs

@@ -80,7 +80,6 @@ async fn send_user_turn_accepts_output_schema_v1() -> Result<()> {
             conversation_id,
             items: vec![InputItem::Text {
                 text: "Hello".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: codex_home.path().to_path_buf(),
             approval_policy: AskForApproval::Never,
@@ -182,7 +181,6 @@ async fn send_user_turn_output_schema_is_per_turn_v1() -> Result<()> {
             conversation_id,
             items: vec![InputItem::Text {
                 text: "Hello".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: codex_home.path().to_path_buf(),
             approval_policy: AskForApproval::Never,
@@ -230,7 +228,6 @@ async fn send_user_turn_output_schema_is_per_turn_v1() -> Result<()> {
             conversation_id,
             items: vec![InputItem::Text {
                 text: "Hello again".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: codex_home.path().to_path_buf(),
             approval_policy: AskForApproval::Never,

codex-rs/app-server/tests/suite/send_message.rs

@@ -1,5 +1,7 @@
 use anyhow::Result;
 use app_test_support::McpProcess;
+use app_test_support::create_final_assistant_message_sse_response;
+use app_test_support::create_mock_chat_completions_server;
 use app_test_support::to_response;
 use codex_app_server_protocol::AddConversationListenerParams;
 use codex_app_server_protocol::AddConversationSubscriptionResponse;
@@ -13,15 +15,10 @@ use codex_app_server_protocol::SendUserMessageParams;
 use codex_app_server_protocol::SendUserMessageResponse;
 use codex_protocol::ThreadId;
 use codex_protocol::models::ContentItem;
-use codex_protocol::models::DeveloperInstructions;
 use codex_protocol::models::ResponseItem;
-use codex_protocol::protocol::AskForApproval;
 use codex_protocol::protocol::RawResponseItemEvent;
-use codex_protocol::protocol::SandboxPolicy;
-use core_test_support::responses;
 use pretty_assertions::assert_eq;
 use std::path::Path;
-use std::path::PathBuf;
 use tempfile::TempDir;
 use tokio::time::timeout;
 
@@ -29,21 +26,13 @@ const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs
 
 #[tokio::test]
 async fn test_send_message_success() -> Result<()> {
-    // Spin up a mock responses server that immediately ends the Codex turn.
+    // Spin up a mock completions server that immediately ends the Codex turn.
     // Two Codex turns hit the mock model (session start + send-user-message). Provide two SSE responses.
-    let server = responses::start_mock_server().await;
-    let body1 = responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_assistant_message("msg-1", "Done"),
-        responses::ev_completed("resp-1"),
-    ]);
-    let body2 = responses::sse(vec![
-        responses::ev_response_created("resp-2"),
-        responses::ev_assistant_message("msg-2", "Done"),
-        responses::ev_completed("resp-2"),
-    ]);
-    let _response_mock1 = responses::mount_sse_once(&server, body1).await;
-    let _response_mock2 = responses::mount_sse_once(&server, body2).await;
+    let responses = vec![
+        create_final_assistant_message_sse_response("Done")?,
+        create_final_assistant_message_sse_response("Done")?,
+    ];
+    let server = create_mock_chat_completions_server(responses).await;
 
     // Create a temporary Codex home with config pointing at the mock server.
     let codex_home = TempDir::new()?;
@@ -101,7 +90,6 @@ async fn send_message(
             conversation_id,
             items: vec![InputItem::Text {
                 text: message.to_string(),
-                text_elements: Vec::new(),
             }],
         })
         .await?;
@@ -147,13 +135,8 @@ async fn send_message(
 
 #[tokio::test]
 async fn test_send_message_raw_notifications_opt_in() -> Result<()> {
-    let server = responses::start_mock_server().await;
-    let body = responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_assistant_message("msg-1", "Done"),
-        responses::ev_completed("resp-1"),
-    ]);
-    let _response_mock = responses::mount_sse_once(&server, body).await;
+    let responses = vec![create_final_assistant_message_sse_response("Done")?];
+    let server = create_mock_chat_completions_server(responses).await;
 
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
@@ -195,14 +178,10 @@ async fn test_send_message_raw_notifications_opt_in() -> Result<()> {
             conversation_id,
             items: vec![InputItem::Text {
                 text: "Hello".to_string(),
-                text_elements: Vec::new(),
             }],
         })
         .await?;
 
-    let permissions = read_raw_response_item(&mut mcp, conversation_id).await;
-    assert_permissions_message(&permissions);
-
     let developer = read_raw_response_item(&mut mcp, conversation_id).await;
     assert_developer_message(&developer, "Use the test harness tools.");
 
@@ -247,7 +226,6 @@ async fn test_send_message_session_not_found() -> Result<()> {
             conversation_id: unknown,
             items: vec![InputItem::Text {
                 text: "ping".to_string(),
-                text_elements: Vec::new(),
             }],
         })
         .await?;
@@ -281,7 +259,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#
@@ -291,7 +269,6 @@ stream_max_retries = 0
 
 #[expect(clippy::expect_used)]
 async fn read_raw_response_item(mcp: &mut McpProcess, conversation_id: ThreadId) -> ResponseItem {
-    // TODO: Switch to rawResponseItem/completed once we migrate to app server v2 in codex web.
     loop {
         let raw_notification: JSONRPCNotification = timeout(
             DEFAULT_READ_TIMEOUT,
@@ -350,27 +327,6 @@ fn assert_instructions_message(item: &ResponseItem) {
     }
 }
 
-fn assert_permissions_message(item: &ResponseItem) {
-    match item {
-        ResponseItem::Message { role, content, .. } => {
-            assert_eq!(role, "developer");
-            let texts = content_texts(content);
-            let expected = DeveloperInstructions::from_policy(
-                &SandboxPolicy::DangerFullAccess,
-                AskForApproval::Never,
-                &PathBuf::from("/tmp"),
-            )
-            .into_text();
-            assert_eq!(
-                texts,
-                vec![expected.as_str()],
-                "expected permissions developer message, got {texts:?}"
-            );
-        }
-        other => panic!("expected permissions message, got {other:?}"),
-    }
-}
-
 fn assert_developer_message(item: &ResponseItem, expected_text: &str) {
     match item {
         ResponseItem::Message { role, content, .. } => {
@@ -428,7 +384,7 @@ fn content_texts(content: &[ContentItem]) -> Vec<&str> {
     content
         .iter()
         .filter_map(|item| match item {
-            ContentItem::InputText { text, .. } | ContentItem::OutputText { text } => {
+            ContentItem::InputText { text } | ContentItem::OutputText { text } => {
                 Some(text.as_str())
             }
             _ => None,

codex-rs/app-server/tests/suite/user_agent.rs

@@ -1,5 +1,4 @@
 use anyhow::Result;
-use app_test_support::DEFAULT_CLIENT_NAME;
 use app_test_support::McpProcess;
 use app_test_support::to_response;
 use codex_app_server_protocol::GetUserAgentResponse;
@@ -26,13 +25,13 @@ async fn get_user_agent_returns_current_codex_user_agent() -> Result<()> {
     .await??;
 
     let os_info = os_info::get();
-    let originator = DEFAULT_CLIENT_NAME;
+    let originator = codex_core::default_client::originator().value.as_str();
     let os_type = os_info.os_type();
     let os_version = os_info.version();
     let architecture = os_info.architecture().unwrap_or("unknown");
     let terminal_ua = codex_core::terminal::user_agent();
     let user_agent = format!(
-        "{originator}/0.0.0 ({os_type} {os_version}; {architecture}) {terminal_ua} ({DEFAULT_CLIENT_NAME}; 0.1.0)"
+        "{originator}/0.0.0 ({os_type} {os_version}; {architecture}) {terminal_ua} (codex-app-server-tests; 0.1.0)"
     );
 
     let received: GetUserAgentResponse = to_response(response)?;

codex-rs/app-server/tests/suite/v2/account.rs

@@ -67,7 +67,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "http://127.0.0.1:0/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 {requires_line}

codex-rs/app-server/tests/suite/v2/analytics.rs

@@ -1,66 +0,0 @@
-use anyhow::Result;
-use codex_core::config::ConfigBuilder;
-use codex_core::config::types::OtelExporterKind;
-use codex_core::config::types::OtelHttpProtocol;
-use pretty_assertions::assert_eq;
-use std::collections::HashMap;
-use tempfile::TempDir;
-
-const SERVICE_VERSION: &str = "0.0.0-test";
-
-fn set_metrics_exporter(config: &mut codex_core::config::Config) {
-    config.otel.metrics_exporter = OtelExporterKind::OtlpHttp {
-        endpoint: "http://localhost:4318".to_string(),
-        headers: HashMap::new(),
-        protocol: OtelHttpProtocol::Json,
-        tls: None,
-    };
-}
-
-#[tokio::test]
-async fn app_server_default_analytics_disabled_without_flag() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    let mut config = ConfigBuilder::default()
-        .codex_home(codex_home.path().to_path_buf())
-        .build()
-        .await?;
-    set_metrics_exporter(&mut config);
-    config.analytics_enabled = None;
-
-    let provider = codex_core::otel_init::build_provider(
-        &config,
-        SERVICE_VERSION,
-        Some("codex_app_server"),
-        false,
-    )
-    .map_err(|err| anyhow::anyhow!(err.to_string()))?;
-
-    // With analytics unset in the config and the default flag is false, metrics are disabled.
-    // No provider is built.
-    assert_eq!(provider.is_none(), true);
-    Ok(())
-}
-
-#[tokio::test]
-async fn app_server_default_analytics_enabled_with_flag() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    let mut config = ConfigBuilder::default()
-        .codex_home(codex_home.path().to_path_buf())
-        .build()
-        .await?;
-    set_metrics_exporter(&mut config);
-    config.analytics_enabled = None;
-
-    let provider = codex_core::otel_init::build_provider(
-        &config,
-        SERVICE_VERSION,
-        Some("codex_app_server"),
-        true,
-    )
-    .map_err(|err| anyhow::anyhow!(err.to_string()))?;
-
-    // With analytics unset in the config and the default flag is true, metrics are enabled.
-    let has_metrics = provider.as_ref().and_then(|otel| otel.metrics()).is_some();
-    assert_eq!(has_metrics, true);
-    Ok(())
-}

codex-rs/app-server/tests/suite/v2/app_list.rs

@@ -1,381 +0,0 @@
-use std::borrow::Cow;
-use std::sync::Arc;
-use std::time::Duration;
-
-use anyhow::Result;
-use app_test_support::ChatGptAuthFixture;
-use app_test_support::McpProcess;
-use app_test_support::to_response;
-use app_test_support::write_chatgpt_auth;
-use axum::Json;
-use axum::Router;
-use axum::extract::State;
-use axum::http::HeaderMap;
-use axum::http::StatusCode;
-use axum::http::header::AUTHORIZATION;
-use axum::routing::post;
-use codex_app_server_protocol::AppInfo;
-use codex_app_server_protocol::AppsListParams;
-use codex_app_server_protocol::AppsListResponse;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::RequestId;
-use codex_core::auth::AuthCredentialsStoreMode;
-use codex_core::connectors::ConnectorInfo;
-use pretty_assertions::assert_eq;
-use rmcp::handler::server::ServerHandler;
-use rmcp::model::JsonObject;
-use rmcp::model::ListToolsResult;
-use rmcp::model::Meta;
-use rmcp::model::ServerCapabilities;
-use rmcp::model::ServerInfo;
-use rmcp::model::Tool;
-use rmcp::model::ToolAnnotations;
-use rmcp::transport::StreamableHttpServerConfig;
-use rmcp::transport::StreamableHttpService;
-use rmcp::transport::streamable_http_server::session::local::LocalSessionManager;
-use serde_json::json;
-use tempfile::TempDir;
-use tokio::net::TcpListener;
-use tokio::task::JoinHandle;
-use tokio::time::timeout;
-
-const DEFAULT_TIMEOUT: Duration = Duration::from_secs(10);
-
-#[tokio::test]
-async fn list_apps_returns_empty_when_connectors_disabled() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-
-    timeout(DEFAULT_TIMEOUT, mcp.initialize()).await??;
-
-    let request_id = mcp
-        .send_apps_list_request(AppsListParams {
-            limit: Some(50),
-            cursor: None,
-        })
-        .await?;
-
-    let response: JSONRPCResponse = timeout(
-        DEFAULT_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(request_id)),
-    )
-    .await??;
-
-    let AppsListResponse { data, next_cursor } = to_response(response)?;
-
-    assert!(data.is_empty());
-    assert!(next_cursor.is_none());
-    Ok(())
-}
-
-#[tokio::test]
-async fn list_apps_returns_connectors_with_accessible_flags() -> Result<()> {
-    let connectors = vec![
-        ConnectorInfo {
-            connector_id: "alpha".to_string(),
-            connector_name: "Alpha".to_string(),
-            connector_description: Some("Alpha connector".to_string()),
-            logo_url: Some("https://example.com/alpha.png".to_string()),
-            install_url: None,
-            is_accessible: false,
-        },
-        ConnectorInfo {
-            connector_id: "beta".to_string(),
-            connector_name: "beta".to_string(),
-            connector_description: None,
-            logo_url: None,
-            install_url: None,
-            is_accessible: false,
-        },
-    ];
-
-    let tools = vec![connector_tool("beta", "Beta App")?];
-    let (server_url, server_handle) = start_apps_server(connectors.clone(), tools).await?;
-
-    let codex_home = TempDir::new()?;
-    write_connectors_config(codex_home.path(), &server_url)?;
-    write_chatgpt_auth(
-        codex_home.path(),
-        ChatGptAuthFixture::new("chatgpt-token")
-            .account_id("account-123")
-            .chatgpt_user_id("user-123")
-            .chatgpt_account_id("account-123"),
-        AuthCredentialsStoreMode::File,
-    )?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_TIMEOUT, mcp.initialize()).await??;
-
-    let request_id = mcp
-        .send_apps_list_request(AppsListParams {
-            limit: None,
-            cursor: None,
-        })
-        .await?;
-
-    let response: JSONRPCResponse = timeout(
-        DEFAULT_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(request_id)),
-    )
-    .await??;
-
-    let AppsListResponse { data, next_cursor } = to_response(response)?;
-
-    let expected = vec![
-        AppInfo {
-            id: "beta".to_string(),
-            name: "Beta App".to_string(),
-            description: None,
-            logo_url: None,
-            install_url: Some("https://chatgpt.com/apps/beta/beta".to_string()),
-            is_accessible: true,
-        },
-        AppInfo {
-            id: "alpha".to_string(),
-            name: "Alpha".to_string(),
-            description: Some("Alpha connector".to_string()),
-            logo_url: Some("https://example.com/alpha.png".to_string()),
-            install_url: Some("https://chatgpt.com/apps/alpha/alpha".to_string()),
-            is_accessible: false,
-        },
-    ];
-
-    assert_eq!(data, expected);
-    assert!(next_cursor.is_none());
-
-    server_handle.abort();
-    Ok(())
-}
-
-#[tokio::test]
-async fn list_apps_paginates_results() -> Result<()> {
-    let connectors = vec![
-        ConnectorInfo {
-            connector_id: "alpha".to_string(),
-            connector_name: "Alpha".to_string(),
-            connector_description: Some("Alpha connector".to_string()),
-            logo_url: None,
-            install_url: None,
-            is_accessible: false,
-        },
-        ConnectorInfo {
-            connector_id: "beta".to_string(),
-            connector_name: "beta".to_string(),
-            connector_description: None,
-            logo_url: None,
-            install_url: None,
-            is_accessible: false,
-        },
-    ];
-
-    let tools = vec![connector_tool("beta", "Beta App")?];
-    let (server_url, server_handle) = start_apps_server(connectors.clone(), tools).await?;
-
-    let codex_home = TempDir::new()?;
-    write_connectors_config(codex_home.path(), &server_url)?;
-    write_chatgpt_auth(
-        codex_home.path(),
-        ChatGptAuthFixture::new("chatgpt-token")
-            .account_id("account-123")
-            .chatgpt_user_id("user-123")
-            .chatgpt_account_id("account-123"),
-        AuthCredentialsStoreMode::File,
-    )?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_TIMEOUT, mcp.initialize()).await??;
-
-    let first_request = mcp
-        .send_apps_list_request(AppsListParams {
-            limit: Some(1),
-            cursor: None,
-        })
-        .await?;
-    let first_response: JSONRPCResponse = timeout(
-        DEFAULT_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(first_request)),
-    )
-    .await??;
-    let AppsListResponse {
-        data: first_page,
-        next_cursor: first_cursor,
-    } = to_response(first_response)?;
-
-    let expected_first = vec![AppInfo {
-        id: "beta".to_string(),
-        name: "Beta App".to_string(),
-        description: None,
-        logo_url: None,
-        install_url: Some("https://chatgpt.com/apps/beta/beta".to_string()),
-        is_accessible: true,
-    }];
-
-    assert_eq!(first_page, expected_first);
-    let next_cursor = first_cursor.ok_or_else(|| anyhow::anyhow!("missing cursor"))?;
-
-    let second_request = mcp
-        .send_apps_list_request(AppsListParams {
-            limit: Some(1),
-            cursor: Some(next_cursor),
-        })
-        .await?;
-    let second_response: JSONRPCResponse = timeout(
-        DEFAULT_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(second_request)),
-    )
-    .await??;
-    let AppsListResponse {
-        data: second_page,
-        next_cursor: second_cursor,
-    } = to_response(second_response)?;
-
-    let expected_second = vec![AppInfo {
-        id: "alpha".to_string(),
-        name: "Alpha".to_string(),
-        description: Some("Alpha connector".to_string()),
-        logo_url: None,
-        install_url: Some("https://chatgpt.com/apps/alpha/alpha".to_string()),
-        is_accessible: false,
-    }];
-
-    assert_eq!(second_page, expected_second);
-    assert!(second_cursor.is_none());
-
-    server_handle.abort();
-    Ok(())
-}
-
-#[derive(Clone)]
-struct AppsServerState {
-    expected_bearer: String,
-    expected_account_id: String,
-    response: serde_json::Value,
-}
-
-#[derive(Clone)]
-struct AppListMcpServer {
-    tools: Arc<Vec<Tool>>,
-}
-
-impl AppListMcpServer {
-    fn new(tools: Arc<Vec<Tool>>) -> Self {
-        Self { tools }
-    }
-}
-
-impl ServerHandler for AppListMcpServer {
-    fn get_info(&self) -> ServerInfo {
-        ServerInfo {
-            capabilities: ServerCapabilities::builder().enable_tools().build(),
-            ..ServerInfo::default()
-        }
-    }
-
-    fn list_tools(
-        &self,
-        _request: Option<rmcp::model::PaginatedRequestParam>,
-        _context: rmcp::service::RequestContext<rmcp::service::RoleServer>,
-    ) -> impl std::future::Future<Output = Result<ListToolsResult, rmcp::ErrorData>> + Send + '_
-    {
-        let tools = self.tools.clone();
-        async move {
-            Ok(ListToolsResult {
-                tools: (*tools).clone(),
-                next_cursor: None,
-                meta: None,
-            })
-        }
-    }
-}
-
-async fn start_apps_server(
-    connectors: Vec<ConnectorInfo>,
-    tools: Vec<Tool>,
-) -> Result<(String, JoinHandle<()>)> {
-    let state = AppsServerState {
-        expected_bearer: "Bearer chatgpt-token".to_string(),
-        expected_account_id: "account-123".to_string(),
-        response: json!({ "connectors": connectors }),
-    };
-    let state = Arc::new(state);
-    let tools = Arc::new(tools);
-
-    let listener = TcpListener::bind("127.0.0.1:0").await?;
-    let addr = listener.local_addr()?;
-
-    let mcp_service = StreamableHttpService::new(
-        {
-            let tools = tools.clone();
-            move || Ok(AppListMcpServer::new(tools.clone()))
-        },
-        Arc::new(LocalSessionManager::default()),
-        StreamableHttpServerConfig::default(),
-    );
-
-    let router = Router::new()
-        .route("/aip/connectors/list_accessible", post(list_connectors))
-        .with_state(state)
-        .nest_service("/api/codex/apps", mcp_service);
-
-    let handle = tokio::spawn(async move {
-        let _ = axum::serve(listener, router).await;
-    });
-
-    Ok((format!("http://{addr}"), handle))
-}
-
-async fn list_connectors(
-    State(state): State<Arc<AppsServerState>>,
-    headers: HeaderMap,
-) -> Result<impl axum::response::IntoResponse, StatusCode> {
-    let bearer_ok = headers
-        .get(AUTHORIZATION)
-        .and_then(|value| value.to_str().ok())
-        .is_some_and(|value| value == state.expected_bearer);
-    let account_ok = headers
-        .get("chatgpt-account-id")
-        .and_then(|value| value.to_str().ok())
-        .is_some_and(|value| value == state.expected_account_id);
-
-    if bearer_ok && account_ok {
-        Ok(Json(state.response.clone()))
-    } else {
-        Err(StatusCode::UNAUTHORIZED)
-    }
-}
-
-fn connector_tool(connector_id: &str, connector_name: &str) -> Result<Tool> {
-    let schema: JsonObject = serde_json::from_value(json!({
-        "type": "object",
-        "additionalProperties": false
-    }))?;
-    let mut tool = Tool::new(
-        Cow::Owned(format!("connector_{connector_id}")),
-        Cow::Borrowed("Connector test tool"),
-        Arc::new(schema),
-    );
-    tool.annotations = Some(ToolAnnotations::new().read_only(true));
-
-    let mut meta = Meta::new();
-    meta.0
-        .insert("connector_id".to_string(), json!(connector_id));
-    meta.0
-        .insert("connector_name".to_string(), json!(connector_name));
-    tool.meta = Some(meta);
-    Ok(tool)
-}
-
-fn write_connectors_config(codex_home: &std::path::Path, base_url: &str) -> std::io::Result<()> {
-    let config_toml = codex_home.join("config.toml");
-    std::fs::write(
-        config_toml,
-        format!(
-            r#"
-chatgpt_base_url = "{base_url}"
-
-[features]
-connectors = true
-"#
-        ),
-    )
-}

codex-rs/app-server/tests/suite/v2/collaboration_mode_list.rs

@@ -1,111 +0,0 @@
-//! Validates that the collaboration mode list endpoint returns the expected default presets.
-//!
-//! The test drives the app server through the MCP harness and asserts that the list response
-//! includes the plan, coding, pair programming, and execute modes with their default model and reasoning
-//! effort settings, which keeps the API contract visible in one place.
-
-#![allow(clippy::unwrap_used)]
-
-use std::time::Duration;
-
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::to_response;
-use codex_app_server_protocol::CollaborationModeListParams;
-use codex_app_server_protocol::CollaborationModeListResponse;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::RequestId;
-use codex_core::models_manager::test_builtin_collaboration_mode_presets;
-use codex_protocol::config_types::CollaborationModeMask;
-use codex_protocol::config_types::ModeKind;
-use pretty_assertions::assert_eq;
-use tempfile::TempDir;
-use tokio::time::timeout;
-
-const DEFAULT_TIMEOUT: Duration = Duration::from_secs(10);
-
-/// Confirms the server returns the default collaboration mode presets in a stable order.
-#[tokio::test]
-async fn list_collaboration_modes_returns_presets() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-
-    timeout(DEFAULT_TIMEOUT, mcp.initialize()).await??;
-
-    let request_id = mcp
-        .send_list_collaboration_modes_request(CollaborationModeListParams {})
-        .await?;
-
-    let response: JSONRPCResponse = timeout(
-        DEFAULT_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(request_id)),
-    )
-    .await??;
-
-    let CollaborationModeListResponse { data: items } =
-        to_response::<CollaborationModeListResponse>(response)?;
-
-    let expected = [
-        plan_preset(),
-        code_preset(),
-        pair_programming_preset(),
-        execute_preset(),
-    ];
-    assert_eq!(expected.len(), items.len());
-    for (expected_mask, actual_mask) in expected.iter().zip(items.iter()) {
-        assert_eq!(expected_mask.name, actual_mask.name);
-        assert_eq!(expected_mask.mode, actual_mask.mode);
-        assert_eq!(expected_mask.model, actual_mask.model);
-        assert_eq!(expected_mask.reasoning_effort, actual_mask.reasoning_effort);
-        assert_eq!(
-            expected_mask.developer_instructions,
-            actual_mask.developer_instructions
-        );
-    }
-    Ok(())
-}
-
-/// Builds the plan preset that the list response is expected to return.
-///
-/// If the defaults change in the app server, this helper should be updated alongside the
-/// contract, or the test will fail in ways that imply a regression in the API.
-fn plan_preset() -> CollaborationModeMask {
-    let presets = test_builtin_collaboration_mode_presets();
-    presets
-        .into_iter()
-        .find(|p| p.mode == Some(ModeKind::Plan))
-        .unwrap()
-}
-
-/// Builds the pair programming preset that the list response is expected to return.
-///
-/// The helper keeps the expected model and reasoning defaults co-located with the test
-/// so that mismatches point directly at the API contract being exercised.
-fn pair_programming_preset() -> CollaborationModeMask {
-    let presets = test_builtin_collaboration_mode_presets();
-    presets
-        .into_iter()
-        .find(|p| p.mode == Some(ModeKind::PairProgramming))
-        .unwrap()
-}
-
-/// Builds the code preset that the list response is expected to return.
-fn code_preset() -> CollaborationModeMask {
-    let presets = test_builtin_collaboration_mode_presets();
-    presets
-        .into_iter()
-        .find(|p| p.mode == Some(ModeKind::Code))
-        .unwrap()
-}
-
-/// Builds the execute preset that the list response is expected to return.
-///
-/// The execute preset uses a different reasoning effort to capture the higher-effort
-/// execution contract the server currently exposes.
-fn execute_preset() -> CollaborationModeMask {
-    let presets = test_builtin_collaboration_mode_presets();
-    presets
-        .into_iter()
-        .find(|p| p.mode == Some(ModeKind::Execute))
-        .unwrap()
-}

codex-rs/app-server/tests/suite/v2/config_rpc.rs

@@ -18,10 +18,7 @@ use codex_app_server_protocol::RequestId;
 use codex_app_server_protocol::SandboxMode;
 use codex_app_server_protocol::ToolsV2;
 use codex_app_server_protocol::WriteStatus;
-use codex_core::config::set_project_trust_level;
 use codex_core::config_loader::SYSTEM_CONFIG_TOML_FILE_UNIX;
-use codex_protocol::config_types::TrustLevel;
-use codex_protocol::openai_models::ReasoningEffort;
 use codex_utils_absolute_path::AbsolutePathBuf;
 use pretty_assertions::assert_eq;
 use serde_json::json;
@@ -56,7 +53,6 @@ sandbox_mode = "workspace-write"
     let request_id = mcp
         .send_config_read_request(ConfigReadParams {
             include_layers: true,
-            cwd: None,
         })
         .await?;
     let resp: JSONRPCResponse = timeout(
@@ -105,7 +101,6 @@ view_image = false
     let request_id = mcp
         .send_config_read_request(ConfigReadParams {
             include_layers: true,
-            cwd: None,
         })
         .await?;
     let resp: JSONRPCResponse = timeout(
@@ -146,52 +141,6 @@ view_image = false
     Ok(())
 }
 
-#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-async fn config_read_includes_project_layers_for_cwd() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    write_config(&codex_home, r#"model = "gpt-user""#)?;
-
-    let workspace = TempDir::new()?;
-    let project_config_dir = workspace.path().join(".codex");
-    std::fs::create_dir_all(&project_config_dir)?;
-    std::fs::write(
-        project_config_dir.join("config.toml"),
-        r#"
-model_reasoning_effort = "high"
-"#,
-    )?;
-    set_project_trust_level(codex_home.path(), workspace.path(), TrustLevel::Trusted)?;
-    let project_config = AbsolutePathBuf::try_from(project_config_dir)?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let request_id = mcp
-        .send_config_read_request(ConfigReadParams {
-            include_layers: true,
-            cwd: Some(workspace.path().to_string_lossy().into_owned()),
-        })
-        .await?;
-    let resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(request_id)),
-    )
-    .await??;
-    let ConfigReadResponse {
-        config, origins, ..
-    } = to_response(resp)?;
-
-    assert_eq!(config.model_reasoning_effort, Some(ReasoningEffort::High));
-    assert_eq!(
-        origins.get("model_reasoning_effort").expect("origin").name,
-        ConfigLayerSource::Project {
-            dot_codex_folder: project_config
-        }
-    );
-
-    Ok(())
-}
-
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn config_read_includes_system_layer_and_overrides() -> Result<()> {
     let codex_home = TempDir::new()?;
@@ -246,7 +195,6 @@ writable_roots = [{}]
     let request_id = mcp
         .send_config_read_request(ConfigReadParams {
             include_layers: true,
-            cwd: None,
         })
         .await?;
     let resp: JSONRPCResponse = timeout(
@@ -333,7 +281,6 @@ model = "gpt-old"
     let read_id = mcp
         .send_config_read_request(ConfigReadParams {
             include_layers: false,
-            cwd: None,
         })
         .await?;
     let read_resp: JSONRPCResponse = timeout(
@@ -368,7 +315,6 @@ model = "gpt-old"
     let verify_id = mcp
         .send_config_read_request(ConfigReadParams {
             include_layers: false,
-            cwd: None,
         })
         .await?;
     let verify_resp: JSONRPCResponse = timeout(
@@ -465,7 +411,6 @@ async fn config_batch_write_applies_multiple_edits() -> Result<()> {
     let read_id = mcp
         .send_config_read_request(ConfigReadParams {
             include_layers: false,
-            cwd: None,
         })
         .await?;
     let read_resp: JSONRPCResponse = timeout(

codex-rs/app-server/tests/suite/v2/dynamic_tools.rs

@@ -1,286 +0,0 @@
-use anyhow::Context;
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::create_final_assistant_message_sse_response;
-use app_test_support::create_mock_responses_server_sequence_unchecked;
-use app_test_support::to_response;
-use codex_app_server_protocol::DynamicToolCallParams;
-use codex_app_server_protocol::DynamicToolCallResponse;
-use codex_app_server_protocol::DynamicToolSpec;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::RequestId;
-use codex_app_server_protocol::ServerRequest;
-use codex_app_server_protocol::ThreadStartParams;
-use codex_app_server_protocol::ThreadStartResponse;
-use codex_app_server_protocol::TurnStartParams;
-use codex_app_server_protocol::TurnStartResponse;
-use codex_app_server_protocol::UserInput as V2UserInput;
-use core_test_support::responses;
-use pretty_assertions::assert_eq;
-use serde_json::Value;
-use serde_json::json;
-use std::path::Path;
-use std::time::Duration;
-use tempfile::TempDir;
-use tokio::time::timeout;
-use wiremock::MockServer;
-
-const DEFAULT_READ_TIMEOUT: Duration = Duration::from_secs(10);
-
-/// Ensures dynamic tool specs are serialized into the model request payload.
-#[tokio::test]
-async fn thread_start_injects_dynamic_tools_into_model_requests() -> Result<()> {
-    let responses = vec![create_final_assistant_message_sse_response("Done")?];
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    // Use a minimal JSON schema so we can assert the tool payload round-trips.
-    let input_schema = json!({
-        "type": "object",
-        "properties": {
-            "city": { "type": "string" }
-        },
-        "required": ["city"],
-        "additionalProperties": false,
-    });
-    let dynamic_tool = DynamicToolSpec {
-        name: "demo_tool".to_string(),
-        description: "Demo dynamic tool".to_string(),
-        input_schema: input_schema.clone(),
-    };
-
-    // Thread start injects dynamic tools into the thread's tool registry.
-    let thread_req = mcp
-        .send_thread_start_request(ThreadStartParams {
-            dynamic_tools: Some(vec![dynamic_tool.clone()]),
-            ..Default::default()
-        })
-        .await?;
-    let thread_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(thread_req)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(thread_resp)?;
-
-    // Start a turn so a model request is issued.
-    let turn_req = mcp
-        .send_turn_start_request(TurnStartParams {
-            thread_id: thread.id.clone(),
-            input: vec![V2UserInput::Text {
-                text: "Hello".to_string(),
-                text_elements: Vec::new(),
-            }],
-            ..Default::default()
-        })
-        .await?;
-    let turn_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(turn_req)),
-    )
-    .await??;
-    let _turn: TurnStartResponse = to_response::<TurnStartResponse>(turn_resp)?;
-
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("turn/completed"),
-    )
-    .await??;
-
-    // Inspect the captured model request to assert the tool spec made it through.
-    let bodies = responses_bodies(&server).await?;
-    let body = bodies
-        .first()
-        .context("expected at least one responses request")?;
-    let tool = find_tool(body, &dynamic_tool.name)
-        .context("expected dynamic tool to be injected into request")?;
-
-    assert_eq!(
-        tool.get("description"),
-        Some(&Value::String(dynamic_tool.description.clone()))
-    );
-    assert_eq!(tool.get("parameters"), Some(&input_schema));
-
-    Ok(())
-}
-
-/// Exercises the full dynamic tool call path (server request, client response, model output).
-#[tokio::test]
-async fn dynamic_tool_call_round_trip_sends_output_to_model() -> Result<()> {
-    let call_id = "dyn-call-1";
-    let tool_name = "demo_tool";
-    let tool_args = json!({ "city": "Paris" });
-    let tool_call_arguments = serde_json::to_string(&tool_args)?;
-
-    // First response triggers a dynamic tool call, second closes the turn.
-    let responses = vec![
-        responses::sse(vec![
-            responses::ev_response_created("resp-1"),
-            responses::ev_function_call(call_id, tool_name, &tool_call_arguments),
-            responses::ev_completed("resp-1"),
-        ]),
-        create_final_assistant_message_sse_response("Done")?,
-    ];
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let dynamic_tool = DynamicToolSpec {
-        name: tool_name.to_string(),
-        description: "Demo dynamic tool".to_string(),
-        input_schema: json!({
-            "type": "object",
-            "properties": {
-                "city": { "type": "string" }
-            },
-            "required": ["city"],
-            "additionalProperties": false,
-        }),
-    };
-
-    let thread_req = mcp
-        .send_thread_start_request(ThreadStartParams {
-            dynamic_tools: Some(vec![dynamic_tool]),
-            ..Default::default()
-        })
-        .await?;
-    let thread_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(thread_req)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(thread_resp)?;
-
-    // Start a turn so the tool call is emitted.
-    let turn_req = mcp
-        .send_turn_start_request(TurnStartParams {
-            thread_id: thread.id.clone(),
-            input: vec![V2UserInput::Text {
-                text: "Run the tool".to_string(),
-                text_elements: Vec::new(),
-            }],
-            ..Default::default()
-        })
-        .await?;
-    let turn_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(turn_req)),
-    )
-    .await??;
-    let TurnStartResponse { turn } = to_response::<TurnStartResponse>(turn_resp)?;
-
-    // Read the tool call request from the app server.
-    let request = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_request_message(),
-    )
-    .await??;
-    let (request_id, params) = match request {
-        ServerRequest::DynamicToolCall { request_id, params } => (request_id, params),
-        other => panic!("expected DynamicToolCall request, got {other:?}"),
-    };
-
-    let expected = DynamicToolCallParams {
-        thread_id: thread.id,
-        turn_id: turn.id,
-        call_id: call_id.to_string(),
-        tool: tool_name.to_string(),
-        arguments: tool_args.clone(),
-    };
-    assert_eq!(params, expected);
-
-    // Respond to the tool call so the model receives a function_call_output.
-    let response = DynamicToolCallResponse {
-        output: "dynamic-ok".to_string(),
-        success: true,
-    };
-    mcp.send_response(request_id, serde_json::to_value(response)?)
-        .await?;
-
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("turn/completed"),
-    )
-    .await??;
-
-    let bodies = responses_bodies(&server).await?;
-    let output = bodies
-        .iter()
-        .find_map(|body| function_call_output_text(body, call_id))
-        .context("expected function_call_output in follow-up request")?;
-    assert_eq!(output, "dynamic-ok");
-
-    Ok(())
-}
-
-async fn responses_bodies(server: &MockServer) -> Result<Vec<Value>> {
-    let requests = server
-        .received_requests()
-        .await
-        .context("failed to fetch received requests")?;
-
-    requests
-        .into_iter()
-        .filter(|req| req.url.path().ends_with("/responses"))
-        .map(|req| {
-            req.body_json::<Value>()
-                .context("request body should be JSON")
-        })
-        .collect()
-}
-
-fn find_tool<'a>(body: &'a Value, name: &str) -> Option<&'a Value> {
-    body.get("tools")
-        .and_then(Value::as_array)
-        .and_then(|tools| {
-            tools
-                .iter()
-                .find(|tool| tool.get("name").and_then(Value::as_str) == Some(name))
-        })
-}
-
-fn function_call_output_text(body: &Value, call_id: &str) -> Option<String> {
-    body.get("input")
-        .and_then(Value::as_array)
-        .and_then(|items| {
-            items.iter().find(|item| {
-                item.get("type").and_then(Value::as_str) == Some("function_call_output")
-                    && item.get("call_id").and_then(Value::as_str) == Some(call_id)
-            })
-        })
-        .and_then(|item| item.get("output"))
-        .and_then(Value::as_str)
-        .map(str::to_string)
-}
-
-fn create_config_toml(codex_home: &Path, server_uri: &str) -> std::io::Result<()> {
-    let config_toml = codex_home.join("config.toml");
-    std::fs::write(
-        config_toml,
-        format!(
-            r#"
-model = "mock-model"
-approval_policy = "never"
-sandbox_mode = "read-only"
-
-model_provider = "mock_provider"
-
-[model_providers.mock_provider]
-name = "Mock provider for test"
-base_url = "{server_uri}/v1"
-wire_api = "responses"
-request_max_retries = 0
-stream_max_retries = 0
-"#
-        ),
-    )
-}

codex-rs/app-server/tests/suite/v2/exec_run.rs

@@ -1,133 +0,0 @@
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::create_final_assistant_message_sse_response;
-use app_test_support::create_mock_responses_server_sequence_unchecked;
-use app_test_support::to_response;
-use codex_app_server_protocol::ExecRunParams;
-use codex_app_server_protocol::ExecRunResponse;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::RequestId;
-use codex_app_server_protocol::TurnStatus;
-use codex_app_server_protocol::UserInput as V2UserInput;
-use core_test_support::skip_if_no_network;
-use pretty_assertions::assert_eq;
-use std::path::Path;
-use tempfile::TempDir;
-use tokio::time::timeout;
-
-const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-const INVALID_REQUEST_ERROR_CODE: i64 = -32600;
-
-#[tokio::test]
-async fn exec_run_completes_turn_and_returns_final_message() -> Result<()> {
-    skip_if_no_network!(Ok(()));
-
-    let responses = vec![create_final_assistant_message_sse_response("Done")?];
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    mcp.initialize().await?;
-
-    let request_id = mcp
-        .send_exec_run_request(ExecRunParams {
-            input: vec![V2UserInput::Text {
-                text: "Generate a title".to_string(),
-                text_elements: Vec::new(),
-            }],
-            model: None,
-            model_provider: None,
-            cwd: None,
-            effort: None,
-            summary: None,
-            collaboration_mode: None,
-            personality: None,
-            config: None,
-            base_instructions: None,
-            developer_instructions: None,
-            output_schema: None,
-        })
-        .await?;
-
-    let response: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(request_id)),
-    )
-    .await??;
-    let response: ExecRunResponse = to_response(response)?;
-
-    assert_eq!(response.status, TurnStatus::Completed);
-    assert_eq!(response.last_agent_message, Some("Done".to_string()));
-    assert_eq!(response.error, None);
-    assert!(!response.thread_id.is_empty(), "thread_id should be set");
-    assert!(!response.turn_id.is_empty(), "turn_id should be set");
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn exec_run_rejects_empty_input() -> Result<()> {
-    skip_if_no_network!(Ok(()));
-
-    let responses = vec![create_final_assistant_message_sse_response("Done")?];
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    mcp.initialize().await?;
-
-    let request_id = mcp
-        .send_exec_run_request(ExecRunParams {
-            input: Vec::new(),
-            model: None,
-            model_provider: None,
-            cwd: None,
-            effort: None,
-            summary: None,
-            collaboration_mode: None,
-            personality: None,
-            config: None,
-            base_instructions: None,
-            developer_instructions: None,
-            output_schema: None,
-        })
-        .await?;
-
-    let error = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_error_message(RequestId::Integer(request_id)),
-    )
-    .await??;
-
-    assert_eq!(error.error.code, INVALID_REQUEST_ERROR_CODE);
-    assert_eq!(error.error.message, "input must not be empty".to_string());
-
-    Ok(())
-}
-
-fn create_config_toml(codex_home: &Path, server_uri: &str) -> std::io::Result<()> {
-    let config_toml = codex_home.join("config.toml");
-    std::fs::write(
-        config_toml,
-        format!(
-            r#"
-model = "mock-model"
-approval_policy = "never"
-sandbox_mode = "read-only"
-
-model_provider = "mock_provider"
-
-[model_providers.mock_provider]
-name = "Mock provider for test"
-base_url = "{server_uri}/v1"
-wire_api = "responses"
-request_max_retries = 0
-stream_max_retries = 0
-"#
-        ),
-    )
-}

codex-rs/app-server/tests/suite/v2/initialize.rs

@@ -1,137 +0,0 @@
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::create_mock_responses_server_sequence_unchecked;
-use app_test_support::to_response;
-use codex_app_server_protocol::ClientInfo;
-use codex_app_server_protocol::InitializeResponse;
-use codex_app_server_protocol::JSONRPCMessage;
-use pretty_assertions::assert_eq;
-use std::path::Path;
-use tempfile::TempDir;
-use tokio::time::timeout;
-
-const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-
-#[tokio::test]
-async fn initialize_uses_client_info_name_as_originator() -> Result<()> {
-    let responses = Vec::new();
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri(), "never")?;
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-
-    let message = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.initialize_with_client_info(ClientInfo {
-            name: "codex_vscode".to_string(),
-            title: Some("Codex VS Code Extension".to_string()),
-            version: "0.1.0".to_string(),
-        }),
-    )
-    .await??;
-
-    let JSONRPCMessage::Response(response) = message else {
-        anyhow::bail!("expected initialize response, got {message:?}");
-    };
-    let InitializeResponse { user_agent } = to_response::<InitializeResponse>(response)?;
-
-    assert!(user_agent.starts_with("codex_vscode/"));
-    Ok(())
-}
-
-#[tokio::test]
-async fn initialize_respects_originator_override_env_var() -> Result<()> {
-    let responses = Vec::new();
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri(), "never")?;
-    let mut mcp = McpProcess::new_with_env(
-        codex_home.path(),
-        &[(
-            "CODEX_INTERNAL_ORIGINATOR_OVERRIDE",
-            Some("codex_originator_via_env_var"),
-        )],
-    )
-    .await?;
-
-    let message = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.initialize_with_client_info(ClientInfo {
-            name: "codex_vscode".to_string(),
-            title: Some("Codex VS Code Extension".to_string()),
-            version: "0.1.0".to_string(),
-        }),
-    )
-    .await??;
-
-    let JSONRPCMessage::Response(response) = message else {
-        anyhow::bail!("expected initialize response, got {message:?}");
-    };
-    let InitializeResponse { user_agent } = to_response::<InitializeResponse>(response)?;
-
-    assert!(user_agent.starts_with("codex_originator_via_env_var/"));
-    Ok(())
-}
-
-#[tokio::test]
-async fn initialize_rejects_invalid_client_name() -> Result<()> {
-    let responses = Vec::new();
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri(), "never")?;
-    let mut mcp = McpProcess::new_with_env(
-        codex_home.path(),
-        &[("CODEX_INTERNAL_ORIGINATOR_OVERRIDE", None)],
-    )
-    .await?;
-
-    let message = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.initialize_with_client_info(ClientInfo {
-            name: "bad\rname".to_string(),
-            title: Some("Bad Client".to_string()),
-            version: "0.1.0".to_string(),
-        }),
-    )
-    .await??;
-
-    let JSONRPCMessage::Error(error) = message else {
-        anyhow::bail!("expected initialize error, got {message:?}");
-    };
-
-    assert_eq!(error.error.code, -32600);
-    assert_eq!(
-        error.error.message,
-        "Invalid clientInfo.name: 'bad\rname'. Must be a valid HTTP header value."
-    );
-    assert_eq!(error.error.data, None);
-    Ok(())
-}
-
-// Helper to create a config.toml pointing at the mock model server.
-fn create_config_toml(
-    codex_home: &Path,
-    server_uri: &str,
-    approval_policy: &str,
-) -> std::io::Result<()> {
-    let config_toml = codex_home.join("config.toml");
-    std::fs::write(
-        config_toml,
-        format!(
-            r#"
-model = "mock-model"
-approval_policy = "{approval_policy}"
-sandbox_mode = "read-only"
-
-model_provider = "mock_provider"
-
-[model_providers.mock_provider]
-name = "Mock provider for test"
-base_url = "{server_uri}/v1"
-wire_api = "responses"
-request_max_retries = 0
-stream_max_retries = 0
-"#
-        ),
-    )
-}

codex-rs/app-server/tests/suite/v2/mod.rs

@@ -1,21 +1,11 @@
 mod account;
-mod analytics;
-mod app_list;
-mod collaboration_mode_list;
 mod config_rpc;
-mod dynamic_tools;
-mod exec_run;
-mod initialize;
 mod model_list;
 mod output_schema;
 mod rate_limits;
-mod request_user_input;
 mod review;
 mod thread_archive;
-mod thread_fork;
 mod thread_list;
-mod thread_loaded_list;
-mod thread_read;
 mod thread_resume;
 mod thread_rollback;
 mod thread_start;

codex-rs/app-server/tests/suite/v2/model_list.rs

@@ -72,7 +72,6 @@ async fn list_models_returns_all_models_with_large_limit() -> Result<()> {
                 },
             ],
             default_reasoning_effort: ReasoningEffort::Medium,
-            supports_personality: false,
             is_default: true,
         },
         Model {
@@ -100,7 +99,6 @@ async fn list_models_returns_all_models_with_large_limit() -> Result<()> {
                 },
             ],
             default_reasoning_effort: ReasoningEffort::Medium,
-            supports_personality: false,
             is_default: false,
         },
         Model {
@@ -120,7 +118,6 @@ async fn list_models_returns_all_models_with_large_limit() -> Result<()> {
                 },
             ],
             default_reasoning_effort: ReasoningEffort::Medium,
-            supports_personality: false,
             is_default: false,
         },
         Model {
@@ -154,7 +151,6 @@ async fn list_models_returns_all_models_with_large_limit() -> Result<()> {
                 },
             ],
             default_reasoning_effort: ReasoningEffort::Medium,
-            supports_personality: false,
             is_default: false,
         },
     ];

codex-rs/app-server/tests/suite/v2/output_schema.rs

@@ -61,7 +61,6 @@ async fn turn_start_accepts_output_schema_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "Hello".to_string(),
-                text_elements: Vec::new(),
             }],
             output_schema: Some(output_schema.clone()),
             ..Default::default()
@@ -143,7 +142,6 @@ async fn turn_start_output_schema_is_per_turn_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "Hello".to_string(),
-                text_elements: Vec::new(),
             }],
             output_schema: Some(output_schema.clone()),
             ..Default::default()
@@ -185,7 +183,6 @@ async fn turn_start_output_schema_is_per_turn_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "Hello again".to_string(),
-                text_elements: Vec::new(),
             }],
             output_schema: None,
             ..Default::default()

codex-rs/app-server/tests/suite/v2/request_user_input.rs

@@ -1,138 +0,0 @@
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::create_final_assistant_message_sse_response;
-use app_test_support::create_mock_responses_server_sequence;
-use app_test_support::create_request_user_input_sse_response;
-use app_test_support::to_response;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::RequestId;
-use codex_app_server_protocol::ServerRequest;
-use codex_app_server_protocol::ThreadStartParams;
-use codex_app_server_protocol::ThreadStartResponse;
-use codex_app_server_protocol::TurnStartParams;
-use codex_app_server_protocol::TurnStartResponse;
-use codex_app_server_protocol::UserInput as V2UserInput;
-use codex_protocol::config_types::CollaborationMode;
-use codex_protocol::config_types::ModeKind;
-use codex_protocol::config_types::Settings;
-use codex_protocol::openai_models::ReasoningEffort;
-use tokio::time::timeout;
-
-const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-
-#[tokio::test(flavor = "multi_thread", worker_threads = 4)]
-async fn request_user_input_round_trip() -> Result<()> {
-    let codex_home = tempfile::TempDir::new()?;
-    let responses = vec![
-        create_request_user_input_sse_response("call1")?,
-        create_final_assistant_message_sse_response("done")?,
-    ];
-    let server = create_mock_responses_server_sequence(responses).await;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let thread_start_id = mcp
-        .send_thread_start_request(ThreadStartParams {
-            model: Some("mock-model".to_string()),
-            ..Default::default()
-        })
-        .await?;
-    let thread_start_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(thread_start_id)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response(thread_start_resp)?;
-
-    let turn_start_id = mcp
-        .send_turn_start_request(TurnStartParams {
-            thread_id: thread.id.clone(),
-            input: vec![V2UserInput::Text {
-                text: "ask something".to_string(),
-                text_elements: Vec::new(),
-            }],
-            model: Some("mock-model".to_string()),
-            effort: Some(ReasoningEffort::Medium),
-            collaboration_mode: Some(CollaborationMode {
-                mode: ModeKind::Plan,
-                settings: Settings {
-                    model: "mock-model".to_string(),
-                    reasoning_effort: Some(ReasoningEffort::Medium),
-                    developer_instructions: None,
-                },
-            }),
-            ..Default::default()
-        })
-        .await?;
-    let turn_start_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(turn_start_id)),
-    )
-    .await??;
-    let TurnStartResponse { turn, .. } = to_response(turn_start_resp)?;
-
-    let server_req = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_request_message(),
-    )
-    .await??;
-    let ServerRequest::ToolRequestUserInput { request_id, params } = server_req else {
-        panic!("expected ToolRequestUserInput request, got: {server_req:?}");
-    };
-
-    assert_eq!(params.thread_id, thread.id);
-    assert_eq!(params.turn_id, turn.id);
-    assert_eq!(params.item_id, "call1");
-    assert_eq!(params.questions.len(), 1);
-
-    mcp.send_response(
-        request_id,
-        serde_json::json!({
-            "answers": {
-                "confirm_path": { "answers": ["yes"] }
-            }
-        }),
-    )
-    .await?;
-
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("codex/event/task_complete"),
-    )
-    .await??;
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("turn/completed"),
-    )
-    .await??;
-
-    Ok(())
-}
-
-fn create_config_toml(codex_home: &std::path::Path, server_uri: &str) -> std::io::Result<()> {
-    let config_toml = codex_home.join("config.toml");
-    std::fs::write(
-        config_toml,
-        format!(
-            r#"
-model = "mock-model"
-approval_policy = "untrusted"
-sandbox_mode = "read-only"
-
-model_provider = "mock_provider"
-
-[features]
-collaboration_modes = true
-
-[model_providers.mock_provider]
-name = "Mock provider for test"
-base_url = "{server_uri}/v1"
-wire_api = "responses"
-request_max_retries = 0
-stream_max_retries = 0
-"#
-        ),
-    )
-}

codex-rs/app-server/tests/suite/v2/review.rs

@@ -1,6 +1,7 @@
 use anyhow::Result;
 use app_test_support::McpProcess;
-use app_test_support::create_mock_responses_server_repeating_assistant;
+use app_test_support::create_final_assistant_message_sse_response;
+use app_test_support::create_mock_chat_completions_server_unchecked;
 use app_test_support::to_response;
 use codex_app_server_protocol::ItemCompletedNotification;
 use codex_app_server_protocol::ItemStartedNotification;
@@ -43,7 +44,10 @@ async fn review_start_runs_review_turn_and_emits_code_review_item() -> Result<()
         "overall_confidence_score": 0.75
     })
     .to_string();
-    let server = create_mock_responses_server_repeating_assistant(&review_payload).await;
+    let responses = vec![create_final_assistant_message_sse_response(
+        &review_payload,
+    )?];
+    let server = create_mock_chat_completions_server_unchecked(responses).await;
 
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
@@ -131,7 +135,7 @@ async fn review_start_runs_review_turn_and_emits_code_review_item() -> Result<()
 
 #[tokio::test]
 async fn review_start_rejects_empty_base_branch() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
+    let server = create_mock_chat_completions_server_unchecked(vec![]).await;
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
 
@@ -172,7 +176,10 @@ async fn review_start_with_detached_delivery_returns_new_thread_id() -> Result<(
         "overall_confidence_score": 0.5
     })
     .to_string();
-    let server = create_mock_responses_server_repeating_assistant(&review_payload).await;
+    let responses = vec![create_final_assistant_message_sse_response(
+        &review_payload,
+    )?];
+    let server = create_mock_chat_completions_server_unchecked(responses).await;
 
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
@@ -212,7 +219,7 @@ async fn review_start_with_detached_delivery_returns_new_thread_id() -> Result<(
 
 #[tokio::test]
 async fn review_start_rejects_empty_commit_sha() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
+    let server = create_mock_chat_completions_server_unchecked(vec![]).await;
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
 
@@ -247,7 +254,7 @@ async fn review_start_rejects_empty_commit_sha() -> Result<()> {
 
 #[tokio::test]
 async fn review_start_rejects_empty_custom_instructions() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
+    let server = create_mock_chat_completions_server_unchecked(vec![]).await;
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
 
@@ -313,7 +320,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/app-server/tests/suite/v2/thread_fork.rs

@@ -1,142 +0,0 @@
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::create_fake_rollout;
-use app_test_support::create_mock_responses_server_repeating_assistant;
-use app_test_support::to_response;
-use codex_app_server_protocol::JSONRPCNotification;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::RequestId;
-use codex_app_server_protocol::SessionSource;
-use codex_app_server_protocol::ThreadForkParams;
-use codex_app_server_protocol::ThreadForkResponse;
-use codex_app_server_protocol::ThreadItem;
-use codex_app_server_protocol::ThreadStartedNotification;
-use codex_app_server_protocol::TurnStatus;
-use codex_app_server_protocol::UserInput;
-use pretty_assertions::assert_eq;
-use std::path::Path;
-use tempfile::TempDir;
-use tokio::time::timeout;
-
-const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-
-#[tokio::test]
-async fn thread_fork_creates_new_thread_and_emits_started() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let preview = "Saved user message";
-    let conversation_id = create_fake_rollout(
-        codex_home.path(),
-        "2025-01-05T12-00-00",
-        "2025-01-05T12:00:00Z",
-        preview,
-        Some("mock_provider"),
-        None,
-    )?;
-
-    let original_path = codex_home
-        .path()
-        .join("sessions")
-        .join("2025")
-        .join("01")
-        .join("05")
-        .join(format!(
-            "rollout-2025-01-05T12-00-00-{conversation_id}.jsonl"
-        ));
-    assert!(
-        original_path.exists(),
-        "expected original rollout to exist at {}",
-        original_path.display()
-    );
-    let original_contents = std::fs::read_to_string(&original_path)?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let fork_id = mcp
-        .send_thread_fork_request(ThreadForkParams {
-            thread_id: conversation_id.clone(),
-            ..Default::default()
-        })
-        .await?;
-    let fork_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(fork_id)),
-    )
-    .await??;
-    let ThreadForkResponse { thread, .. } = to_response::<ThreadForkResponse>(fork_resp)?;
-
-    let after_contents = std::fs::read_to_string(&original_path)?;
-    assert_eq!(
-        after_contents, original_contents,
-        "fork should not mutate the original rollout file"
-    );
-
-    assert_ne!(thread.id, conversation_id);
-    assert_eq!(thread.preview, preview);
-    assert_eq!(thread.model_provider, "mock_provider");
-    let thread_path = thread.path.clone().expect("thread path");
-    assert!(thread_path.is_absolute());
-    assert_ne!(thread_path, original_path);
-    assert!(thread.cwd.is_absolute());
-    assert_eq!(thread.source, SessionSource::VsCode);
-
-    assert_eq!(
-        thread.turns.len(),
-        1,
-        "expected forked thread to include one turn"
-    );
-    let turn = &thread.turns[0];
-    assert_eq!(turn.status, TurnStatus::Completed);
-    assert_eq!(turn.items.len(), 1, "expected user message item");
-    match &turn.items[0] {
-        ThreadItem::UserMessage { content, .. } => {
-            assert_eq!(
-                content,
-                &vec![UserInput::Text {
-                    text: preview.to_string(),
-                    text_elements: Vec::new(),
-                }]
-            );
-        }
-        other => panic!("expected user message item, got {other:?}"),
-    }
-
-    // A corresponding thread/started notification should arrive.
-    let notif: JSONRPCNotification = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("thread/started"),
-    )
-    .await??;
-    let started: ThreadStartedNotification =
-        serde_json::from_value(notif.params.expect("params must be present"))?;
-    assert_eq!(started.thread, thread);
-
-    Ok(())
-}
-
-// Helper to create a config.toml pointing at the mock model server.
-fn create_config_toml(codex_home: &Path, server_uri: &str) -> std::io::Result<()> {
-    let config_toml = codex_home.join("config.toml");
-    std::fs::write(
-        config_toml,
-        format!(
-            r#"
-model = "mock-model"
-approval_policy = "never"
-sandbox_mode = "read-only"
-
-model_provider = "mock_provider"
-
-[model_providers.mock_provider]
-name = "Mock provider for test"
-base_url = "{server_uri}/v1"
-wire_api = "responses"
-request_max_retries = 0
-stream_max_retries = 0
-"#
-        ),
-    )
-}

codex-rs/app-server/tests/suite/v2/thread_list.rs

@@ -1,29 +1,17 @@
 use anyhow::Result;
 use app_test_support::McpProcess;
 use app_test_support::create_fake_rollout;
-use app_test_support::rollout_path;
 use app_test_support::to_response;
-use chrono::DateTime;
-use chrono::Utc;
 use codex_app_server_protocol::GitInfo as ApiGitInfo;
-use codex_app_server_protocol::JSONRPCError;
 use codex_app_server_protocol::JSONRPCResponse;
 use codex_app_server_protocol::RequestId;
 use codex_app_server_protocol::SessionSource;
 use codex_app_server_protocol::ThreadListResponse;
-use codex_app_server_protocol::ThreadSortKey;
-use codex_core::ARCHIVED_SESSIONS_SUBDIR;
 use codex_protocol::protocol::GitInfo as CoreGitInfo;
-use pretty_assertions::assert_eq;
-use std::cmp::Reverse;
-use std::fs;
-use std::fs::FileTimes;
-use std::fs::OpenOptions;
 use std::path::Path;
 use std::path::PathBuf;
 use tempfile::TempDir;
 use tokio::time::timeout;
-use uuid::Uuid;
 
 const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
 
@@ -38,26 +26,12 @@ async fn list_threads(
     cursor: Option<String>,
     limit: Option<u32>,
     providers: Option<Vec<String>>,
-    archived: Option<bool>,
-) -> Result<ThreadListResponse> {
-    list_threads_with_sort(mcp, cursor, limit, providers, None, archived).await
-}
-
-async fn list_threads_with_sort(
-    mcp: &mut McpProcess,
-    cursor: Option<String>,
-    limit: Option<u32>,
-    providers: Option<Vec<String>>,
-    sort_key: Option<ThreadSortKey>,
-    archived: Option<bool>,
 ) -> Result<ThreadListResponse> {
     let request_id = mcp
         .send_thread_list_request(codex_app_server_protocol::ThreadListParams {
             cursor,
             limit,
-            sort_key,
             model_providers: providers,
-            archived,
         })
         .await?;
     let resp: JSONRPCResponse = timeout(
@@ -108,16 +82,6 @@ fn timestamp_at(
     )
 }
 
-fn set_rollout_mtime(path: &Path, updated_at_rfc3339: &str) -> Result<()> {
-    let parsed = DateTime::parse_from_rfc3339(updated_at_rfc3339)?.with_timezone(&Utc);
-    let times = FileTimes::new().set_modified(parsed.into());
-    OpenOptions::new()
-        .append(true)
-        .open(path)?
-        .set_times(times)?;
-    Ok(())
-}
-
 #[tokio::test]
 async fn thread_list_basic_empty() -> Result<()> {
     let codex_home = TempDir::new()?;
@@ -130,7 +94,6 @@ async fn thread_list_basic_empty() -> Result<()> {
         None,
         Some(10),
         Some(vec!["mock_provider".to_string()]),
-        None,
     )
     .await?;
     assert!(data.is_empty());
@@ -193,7 +156,6 @@ async fn thread_list_pagination_next_cursor_none_on_last_page() -> Result<()> {
         None,
         Some(2),
         Some(vec!["mock_provider".to_string()]),
-        None,
     )
     .await?;
     assert_eq!(data1.len(), 2);
@@ -201,7 +163,6 @@ async fn thread_list_pagination_next_cursor_none_on_last_page() -> Result<()> {
         assert_eq!(thread.preview, "Hello");
         assert_eq!(thread.model_provider, "mock_provider");
         assert!(thread.created_at > 0);
-        assert_eq!(thread.updated_at, thread.created_at);
         assert_eq!(thread.cwd, PathBuf::from("/"));
         assert_eq!(thread.cli_version, "0.0.0");
         assert_eq!(thread.source, SessionSource::Cli);
@@ -218,7 +179,6 @@ async fn thread_list_pagination_next_cursor_none_on_last_page() -> Result<()> {
         Some(cursor1),
         Some(2),
         Some(vec!["mock_provider".to_string()]),
-        None,
     )
     .await?;
     assert!(data2.len() <= 2);
@@ -226,7 +186,6 @@ async fn thread_list_pagination_next_cursor_none_on_last_page() -> Result<()> {
         assert_eq!(thread.preview, "Hello");
         assert_eq!(thread.model_provider, "mock_provider");
         assert!(thread.created_at > 0);
-        assert_eq!(thread.updated_at, thread.created_at);
         assert_eq!(thread.cwd, PathBuf::from("/"));
         assert_eq!(thread.cli_version, "0.0.0");
         assert_eq!(thread.source, SessionSource::Cli);
@@ -268,7 +227,6 @@ async fn thread_list_respects_provider_filter() -> Result<()> {
         None,
         Some(10),
         Some(vec!["other_provider".to_string()]),
-        None,
     )
     .await?;
     assert_eq!(data.len(), 1);
@@ -278,7 +236,6 @@ async fn thread_list_respects_provider_filter() -> Result<()> {
     assert_eq!(thread.model_provider, "other_provider");
     let expected_ts = chrono::DateTime::parse_from_rfc3339("2025-01-02T11:00:00Z")?.timestamp();
     assert_eq!(thread.created_at, expected_ts);
-    assert_eq!(thread.updated_at, expected_ts);
     assert_eq!(thread.cwd, PathBuf::from("/"));
     assert_eq!(thread.cli_version, "0.0.0");
     assert_eq!(thread.source, SessionSource::Cli);
@@ -318,7 +275,6 @@ async fn thread_list_fetches_until_limit_or_exhausted() -> Result<()> {
         None,
         Some(8),
         Some(vec!["target_provider".to_string()]),
-        None,
     )
     .await?;
     assert_eq!(
@@ -363,7 +319,6 @@ async fn thread_list_enforces_max_limit() -> Result<()> {
         None,
         Some(200),
         Some(vec!["mock_provider".to_string()]),
-        None,
     )
     .await?;
     assert_eq!(
@@ -409,7 +364,6 @@ async fn thread_list_stops_when_not_enough_filtered_results_exist() -> Result<()
         None,
         Some(10),
         Some(vec!["target_provider".to_string()]),
-        None,
     )
     .await?;
     assert_eq!(
@@ -456,7 +410,6 @@ async fn thread_list_includes_git_info() -> Result<()> {
         None,
         Some(10),
         Some(vec!["mock_provider".to_string()]),
-        None,
     )
     .await?;
     let thread = data
@@ -476,418 +429,3 @@ async fn thread_list_includes_git_info() -> Result<()> {
 
     Ok(())
 }
-
-#[tokio::test]
-async fn thread_list_default_sorts_by_created_at() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    create_minimal_config(codex_home.path())?;
-
-    let id_a = create_fake_rollout(
-        codex_home.path(),
-        "2025-01-02T12-00-00",
-        "2025-01-02T12:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-    let id_b = create_fake_rollout(
-        codex_home.path(),
-        "2025-01-01T13-00-00",
-        "2025-01-01T13:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-    let id_c = create_fake_rollout(
-        codex_home.path(),
-        "2025-01-01T12-00-00",
-        "2025-01-01T12:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-
-    let mut mcp = init_mcp(codex_home.path()).await?;
-
-    let ThreadListResponse { data, .. } = list_threads_with_sort(
-        &mut mcp,
-        None,
-        Some(10),
-        Some(vec!["mock_provider".to_string()]),
-        None,
-        None,
-    )
-    .await?;
-
-    let ids: Vec<_> = data.iter().map(|thread| thread.id.as_str()).collect();
-    assert_eq!(ids, vec![id_a.as_str(), id_b.as_str(), id_c.as_str()]);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_list_sort_updated_at_orders_by_mtime() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    create_minimal_config(codex_home.path())?;
-
-    let id_old = create_fake_rollout(
-        codex_home.path(),
-        "2025-01-01T10-00-00",
-        "2025-01-01T10:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-    let id_mid = create_fake_rollout(
-        codex_home.path(),
-        "2025-01-01T11-00-00",
-        "2025-01-01T11:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-    let id_new = create_fake_rollout(
-        codex_home.path(),
-        "2025-01-01T12-00-00",
-        "2025-01-01T12:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-01-01T10-00-00", &id_old).as_path(),
-        "2025-01-03T00:00:00Z",
-    )?;
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-01-01T11-00-00", &id_mid).as_path(),
-        "2025-01-02T00:00:00Z",
-    )?;
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-01-01T12-00-00", &id_new).as_path(),
-        "2025-01-01T00:00:00Z",
-    )?;
-
-    let mut mcp = init_mcp(codex_home.path()).await?;
-
-    let ThreadListResponse { data, .. } = list_threads_with_sort(
-        &mut mcp,
-        None,
-        Some(10),
-        Some(vec!["mock_provider".to_string()]),
-        Some(ThreadSortKey::UpdatedAt),
-        None,
-    )
-    .await?;
-
-    let ids: Vec<_> = data.iter().map(|thread| thread.id.as_str()).collect();
-    assert_eq!(ids, vec![id_old.as_str(), id_mid.as_str(), id_new.as_str()]);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_list_updated_at_paginates_with_cursor() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    create_minimal_config(codex_home.path())?;
-
-    let id_a = create_fake_rollout(
-        codex_home.path(),
-        "2025-02-01T10-00-00",
-        "2025-02-01T10:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-    let id_b = create_fake_rollout(
-        codex_home.path(),
-        "2025-02-01T11-00-00",
-        "2025-02-01T11:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-    let id_c = create_fake_rollout(
-        codex_home.path(),
-        "2025-02-01T12-00-00",
-        "2025-02-01T12:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-02-01T10-00-00", &id_a).as_path(),
-        "2025-02-03T00:00:00Z",
-    )?;
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-02-01T11-00-00", &id_b).as_path(),
-        "2025-02-02T00:00:00Z",
-    )?;
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-02-01T12-00-00", &id_c).as_path(),
-        "2025-02-01T00:00:00Z",
-    )?;
-
-    let mut mcp = init_mcp(codex_home.path()).await?;
-
-    let ThreadListResponse {
-        data: page1,
-        next_cursor: cursor1,
-    } = list_threads_with_sort(
-        &mut mcp,
-        None,
-        Some(2),
-        Some(vec!["mock_provider".to_string()]),
-        Some(ThreadSortKey::UpdatedAt),
-        None,
-    )
-    .await?;
-    let ids_page1: Vec<_> = page1.iter().map(|thread| thread.id.as_str()).collect();
-    assert_eq!(ids_page1, vec![id_a.as_str(), id_b.as_str()]);
-    let cursor1 = cursor1.expect("expected nextCursor on first page");
-
-    let ThreadListResponse {
-        data: page2,
-        next_cursor: cursor2,
-    } = list_threads_with_sort(
-        &mut mcp,
-        Some(cursor1),
-        Some(2),
-        Some(vec!["mock_provider".to_string()]),
-        Some(ThreadSortKey::UpdatedAt),
-        None,
-    )
-    .await?;
-    let ids_page2: Vec<_> = page2.iter().map(|thread| thread.id.as_str()).collect();
-    assert_eq!(ids_page2, vec![id_c.as_str()]);
-    assert_eq!(cursor2, None);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_list_created_at_tie_breaks_by_uuid() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    create_minimal_config(codex_home.path())?;
-
-    let id_a = create_fake_rollout(
-        codex_home.path(),
-        "2025-02-01T10-00-00",
-        "2025-02-01T10:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-    let id_b = create_fake_rollout(
-        codex_home.path(),
-        "2025-02-01T10-00-00",
-        "2025-02-01T10:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-
-    let mut mcp = init_mcp(codex_home.path()).await?;
-
-    let ThreadListResponse { data, .. } = list_threads(
-        &mut mcp,
-        None,
-        Some(10),
-        Some(vec!["mock_provider".to_string()]),
-        None,
-    )
-    .await?;
-
-    let ids: Vec<_> = data.iter().map(|thread| thread.id.as_str()).collect();
-    let mut expected = [id_a, id_b];
-    expected.sort_by_key(|id| Reverse(Uuid::parse_str(id).expect("uuid should parse")));
-    let expected: Vec<_> = expected.iter().map(String::as_str).collect();
-    assert_eq!(ids, expected);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_list_updated_at_tie_breaks_by_uuid() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    create_minimal_config(codex_home.path())?;
-
-    let id_a = create_fake_rollout(
-        codex_home.path(),
-        "2025-02-01T10-00-00",
-        "2025-02-01T10:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-    let id_b = create_fake_rollout(
-        codex_home.path(),
-        "2025-02-01T11-00-00",
-        "2025-02-01T11:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-
-    let updated_at = "2025-02-03T00:00:00Z";
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-02-01T10-00-00", &id_a).as_path(),
-        updated_at,
-    )?;
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-02-01T11-00-00", &id_b).as_path(),
-        updated_at,
-    )?;
-
-    let mut mcp = init_mcp(codex_home.path()).await?;
-
-    let ThreadListResponse { data, .. } = list_threads_with_sort(
-        &mut mcp,
-        None,
-        Some(10),
-        Some(vec!["mock_provider".to_string()]),
-        Some(ThreadSortKey::UpdatedAt),
-        None,
-    )
-    .await?;
-
-    let ids: Vec<_> = data.iter().map(|thread| thread.id.as_str()).collect();
-    let mut expected = [id_a, id_b];
-    expected.sort_by_key(|id| Reverse(Uuid::parse_str(id).expect("uuid should parse")));
-    let expected: Vec<_> = expected.iter().map(String::as_str).collect();
-    assert_eq!(ids, expected);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_list_updated_at_uses_mtime() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    create_minimal_config(codex_home.path())?;
-
-    let thread_id = create_fake_rollout(
-        codex_home.path(),
-        "2025-02-01T10-00-00",
-        "2025-02-01T10:00:00Z",
-        "Hello",
-        Some("mock_provider"),
-        None,
-    )?;
-
-    set_rollout_mtime(
-        rollout_path(codex_home.path(), "2025-02-01T10-00-00", &thread_id).as_path(),
-        "2025-02-05T00:00:00Z",
-    )?;
-
-    let mut mcp = init_mcp(codex_home.path()).await?;
-
-    let ThreadListResponse { data, .. } = list_threads_with_sort(
-        &mut mcp,
-        None,
-        Some(10),
-        Some(vec!["mock_provider".to_string()]),
-        Some(ThreadSortKey::UpdatedAt),
-        None,
-    )
-    .await?;
-
-    let thread = data
-        .iter()
-        .find(|item| item.id == thread_id)
-        .expect("expected thread for created rollout");
-    let expected_created =
-        chrono::DateTime::parse_from_rfc3339("2025-02-01T10:00:00Z")?.timestamp();
-    let expected_updated =
-        chrono::DateTime::parse_from_rfc3339("2025-02-05T00:00:00Z")?.timestamp();
-    assert_eq!(thread.created_at, expected_created);
-    assert_eq!(thread.updated_at, expected_updated);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_list_archived_filter() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    create_minimal_config(codex_home.path())?;
-
-    let active_id = create_fake_rollout(
-        codex_home.path(),
-        "2025-03-01T10-00-00",
-        "2025-03-01T10:00:00Z",
-        "Active",
-        Some("mock_provider"),
-        None,
-    )?;
-    let archived_id = create_fake_rollout(
-        codex_home.path(),
-        "2025-03-01T09-00-00",
-        "2025-03-01T09:00:00Z",
-        "Archived",
-        Some("mock_provider"),
-        None,
-    )?;
-
-    let archived_dir = codex_home.path().join(ARCHIVED_SESSIONS_SUBDIR);
-    fs::create_dir_all(&archived_dir)?;
-    let archived_source = rollout_path(codex_home.path(), "2025-03-01T09-00-00", &archived_id);
-    let archived_dest = archived_dir.join(
-        archived_source
-            .file_name()
-            .expect("archived rollout should have a file name"),
-    );
-    fs::rename(&archived_source, &archived_dest)?;
-
-    let mut mcp = init_mcp(codex_home.path()).await?;
-
-    let ThreadListResponse { data, .. } = list_threads(
-        &mut mcp,
-        None,
-        Some(10),
-        Some(vec!["mock_provider".to_string()]),
-        None,
-    )
-    .await?;
-    assert_eq!(data.len(), 1);
-    assert_eq!(data[0].id, active_id);
-
-    let ThreadListResponse { data, .. } = list_threads(
-        &mut mcp,
-        None,
-        Some(10),
-        Some(vec!["mock_provider".to_string()]),
-        Some(true),
-    )
-    .await?;
-    assert_eq!(data.len(), 1);
-    assert_eq!(data[0].id, archived_id);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_list_invalid_cursor_returns_error() -> Result<()> {
-    let codex_home = TempDir::new()?;
-    create_minimal_config(codex_home.path())?;
-
-    let mut mcp = init_mcp(codex_home.path()).await?;
-
-    let request_id = mcp
-        .send_thread_list_request(codex_app_server_protocol::ThreadListParams {
-            cursor: Some("not-a-cursor".to_string()),
-            limit: Some(2),
-            sort_key: None,
-            model_providers: Some(vec!["mock_provider".to_string()]),
-            archived: None,
-        })
-        .await?;
-    let error: JSONRPCError = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_error_message(RequestId::Integer(request_id)),
-    )
-    .await??;
-    assert_eq!(error.error.code, -32600);
-    assert_eq!(error.error.message, "invalid cursor: not-a-cursor");
-
-    Ok(())
-}

codex-rs/app-server/tests/suite/v2/thread_loaded_list.rs

@@ -1,139 +0,0 @@
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::create_mock_responses_server_repeating_assistant;
-use app_test_support::to_response;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::RequestId;
-use codex_app_server_protocol::ThreadLoadedListParams;
-use codex_app_server_protocol::ThreadLoadedListResponse;
-use codex_app_server_protocol::ThreadStartParams;
-use codex_app_server_protocol::ThreadStartResponse;
-use pretty_assertions::assert_eq;
-use std::path::Path;
-use tempfile::TempDir;
-use tokio::time::timeout;
-
-const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-
-#[tokio::test]
-async fn thread_loaded_list_returns_loaded_thread_ids() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let thread_id = start_thread(&mut mcp).await?;
-
-    let list_id = mcp
-        .send_thread_loaded_list_request(ThreadLoadedListParams::default())
-        .await?;
-    let resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(list_id)),
-    )
-    .await??;
-    let ThreadLoadedListResponse {
-        mut data,
-        next_cursor,
-    } = to_response::<ThreadLoadedListResponse>(resp)?;
-    data.sort();
-    assert_eq!(data, vec![thread_id]);
-    assert_eq!(next_cursor, None);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_loaded_list_paginates() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let first = start_thread(&mut mcp).await?;
-    let second = start_thread(&mut mcp).await?;
-
-    let mut expected = [first, second];
-    expected.sort();
-
-    let list_id = mcp
-        .send_thread_loaded_list_request(ThreadLoadedListParams {
-            cursor: None,
-            limit: Some(1),
-        })
-        .await?;
-    let resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(list_id)),
-    )
-    .await??;
-    let ThreadLoadedListResponse {
-        data: first_page,
-        next_cursor,
-    } = to_response::<ThreadLoadedListResponse>(resp)?;
-    assert_eq!(first_page, vec![expected[0].clone()]);
-    assert_eq!(next_cursor, Some(expected[0].clone()));
-
-    let list_id = mcp
-        .send_thread_loaded_list_request(ThreadLoadedListParams {
-            cursor: next_cursor,
-            limit: Some(1),
-        })
-        .await?;
-    let resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(list_id)),
-    )
-    .await??;
-    let ThreadLoadedListResponse {
-        data: second_page,
-        next_cursor,
-    } = to_response::<ThreadLoadedListResponse>(resp)?;
-    assert_eq!(second_page, vec![expected[1].clone()]);
-    assert_eq!(next_cursor, None);
-
-    Ok(())
-}
-
-fn create_config_toml(codex_home: &Path, server_uri: &str) -> std::io::Result<()> {
-    let config_toml = codex_home.join("config.toml");
-    std::fs::write(
-        config_toml,
-        format!(
-            r#"
-model = "mock-model"
-approval_policy = "never"
-sandbox_mode = "read-only"
-
-model_provider = "mock_provider"
-
-[model_providers.mock_provider]
-name = "Mock provider for test"
-base_url = "{server_uri}/v1"
-wire_api = "responses"
-request_max_retries = 0
-stream_max_retries = 0
-"#
-        ),
-    )
-}
-
-async fn start_thread(mcp: &mut McpProcess) -> Result<String> {
-    let req_id = mcp
-        .send_thread_start_request(ThreadStartParams {
-            model: Some("gpt-5.1".to_string()),
-            ..Default::default()
-        })
-        .await?;
-    let resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(req_id)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(resp)?;
-    Ok(thread.id)
-}

codex-rs/app-server/tests/suite/v2/thread_read.rs

@@ -1,159 +0,0 @@
-use anyhow::Result;
-use app_test_support::McpProcess;
-use app_test_support::create_fake_rollout_with_text_elements;
-use app_test_support::create_mock_responses_server_repeating_assistant;
-use app_test_support::to_response;
-use codex_app_server_protocol::JSONRPCResponse;
-use codex_app_server_protocol::RequestId;
-use codex_app_server_protocol::SessionSource;
-use codex_app_server_protocol::ThreadItem;
-use codex_app_server_protocol::ThreadReadParams;
-use codex_app_server_protocol::ThreadReadResponse;
-use codex_app_server_protocol::TurnStatus;
-use codex_app_server_protocol::UserInput;
-use codex_protocol::user_input::ByteRange;
-use codex_protocol::user_input::TextElement;
-use pretty_assertions::assert_eq;
-use std::path::Path;
-use std::path::PathBuf;
-use tempfile::TempDir;
-use tokio::time::timeout;
-
-const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-
-#[tokio::test]
-async fn thread_read_returns_summary_without_turns() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let preview = "Saved user message";
-    let text_elements = [TextElement::new(
-        ByteRange { start: 0, end: 5 },
-        Some("<note>".into()),
-    )];
-    let conversation_id = create_fake_rollout_with_text_elements(
-        codex_home.path(),
-        "2025-01-05T12-00-00",
-        "2025-01-05T12:00:00Z",
-        preview,
-        text_elements
-            .iter()
-            .map(|elem| serde_json::to_value(elem).expect("serialize text element"))
-            .collect(),
-        Some("mock_provider"),
-        None,
-    )?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let read_id = mcp
-        .send_thread_read_request(ThreadReadParams {
-            thread_id: conversation_id.clone(),
-            include_turns: false,
-        })
-        .await?;
-    let read_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(read_id)),
-    )
-    .await??;
-    let ThreadReadResponse { thread } = to_response::<ThreadReadResponse>(read_resp)?;
-
-    assert_eq!(thread.id, conversation_id);
-    assert_eq!(thread.preview, preview);
-    assert_eq!(thread.model_provider, "mock_provider");
-    assert!(thread.path.as_ref().expect("thread path").is_absolute());
-    assert_eq!(thread.cwd, PathBuf::from("/"));
-    assert_eq!(thread.cli_version, "0.0.0");
-    assert_eq!(thread.source, SessionSource::Cli);
-    assert_eq!(thread.git_info, None);
-    assert_eq!(thread.turns.len(), 0);
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn thread_read_can_include_turns() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let preview = "Saved user message";
-    let text_elements = vec![TextElement::new(
-        ByteRange { start: 0, end: 5 },
-        Some("<note>".into()),
-    )];
-    let conversation_id = create_fake_rollout_with_text_elements(
-        codex_home.path(),
-        "2025-01-05T12-00-00",
-        "2025-01-05T12:00:00Z",
-        preview,
-        text_elements
-            .iter()
-            .map(|elem| serde_json::to_value(elem).expect("serialize text element"))
-            .collect(),
-        Some("mock_provider"),
-        None,
-    )?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let read_id = mcp
-        .send_thread_read_request(ThreadReadParams {
-            thread_id: conversation_id.clone(),
-            include_turns: true,
-        })
-        .await?;
-    let read_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(read_id)),
-    )
-    .await??;
-    let ThreadReadResponse { thread } = to_response::<ThreadReadResponse>(read_resp)?;
-
-    assert_eq!(thread.turns.len(), 1);
-    let turn = &thread.turns[0];
-    assert_eq!(turn.status, TurnStatus::Completed);
-    assert_eq!(turn.items.len(), 1, "expected user message item");
-    match &turn.items[0] {
-        ThreadItem::UserMessage { content, .. } => {
-            assert_eq!(
-                content,
-                &vec![UserInput::Text {
-                    text: preview.to_string(),
-                    text_elements: text_elements.clone().into_iter().map(Into::into).collect(),
-                }]
-            );
-        }
-        other => panic!("expected user message item, got {other:?}"),
-    }
-
-    Ok(())
-}
-
-// Helper to create a config.toml pointing at the mock model server.
-fn create_config_toml(codex_home: &Path, server_uri: &str) -> std::io::Result<()> {
-    let config_toml = codex_home.join("config.toml");
-    std::fs::write(
-        config_toml,
-        format!(
-            r#"
-model = "mock-model"
-approval_policy = "never"
-sandbox_mode = "read-only"
-
-model_provider = "mock_provider"
-
-[model_providers.mock_provider]
-name = "Mock provider for test"
-base_url = "{server_uri}/v1"
-wire_api = "responses"
-request_max_retries = 0
-stream_max_retries = 0
-"#
-        ),
-    )
-}

codex-rs/app-server/tests/suite/v2/thread_resume.rs

@@ -1,7 +1,7 @@
 use anyhow::Result;
 use app_test_support::McpProcess;
-use app_test_support::create_fake_rollout_with_text_elements;
-use app_test_support::create_mock_responses_server_repeating_assistant;
+use app_test_support::create_fake_rollout;
+use app_test_support::create_mock_chat_completions_server;
 use app_test_support::to_response;
 use codex_app_server_protocol::JSONRPCResponse;
 use codex_app_server_protocol::RequestId;
@@ -11,27 +11,19 @@ use codex_app_server_protocol::ThreadResumeParams;
 use codex_app_server_protocol::ThreadResumeResponse;
 use codex_app_server_protocol::ThreadStartParams;
 use codex_app_server_protocol::ThreadStartResponse;
-use codex_app_server_protocol::TurnStartParams;
 use codex_app_server_protocol::TurnStatus;
 use codex_app_server_protocol::UserInput;
-use codex_protocol::config_types::Personality;
 use codex_protocol::models::ContentItem;
 use codex_protocol::models::ResponseItem;
-use codex_protocol::user_input::ByteRange;
-use codex_protocol::user_input::TextElement;
-use core_test_support::responses;
-use core_test_support::skip_if_no_network;
-use pretty_assertions::assert_eq;
 use std::path::PathBuf;
 use tempfile::TempDir;
 use tokio::time::timeout;
 
 const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-const DEFAULT_BASE_INSTRUCTIONS: &str = "You are Codex, based on GPT-5. You are running as a coding agent in the Codex CLI on a user's computer.";
 
 #[tokio::test]
 async fn thread_resume_returns_original_thread() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
+    let server = create_mock_chat_completions_server(vec![]).await;
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
 
@@ -67,33 +59,23 @@ async fn thread_resume_returns_original_thread() -> Result<()> {
     let ThreadResumeResponse {
         thread: resumed, ..
     } = to_response::<ThreadResumeResponse>(resume_resp)?;
-    let mut expected = thread;
-    expected.updated_at = resumed.updated_at;
-    assert_eq!(resumed, expected);
+    assert_eq!(resumed, thread);
 
     Ok(())
 }
 
 #[tokio::test]
 async fn thread_resume_returns_rollout_history() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
+    let server = create_mock_chat_completions_server(vec![]).await;
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
 
     let preview = "Saved user message";
-    let text_elements = vec![TextElement::new(
-        ByteRange { start: 0, end: 5 },
-        Some("<note>".into()),
-    )];
-    let conversation_id = create_fake_rollout_with_text_elements(
+    let conversation_id = create_fake_rollout(
         codex_home.path(),
         "2025-01-05T12-00-00",
         "2025-01-05T12:00:00Z",
         preview,
-        text_elements
-            .iter()
-            .map(|elem| serde_json::to_value(elem).expect("serialize text element"))
-            .collect(),
         Some("mock_provider"),
         None,
     )?;
@@ -117,7 +99,7 @@ async fn thread_resume_returns_rollout_history() -> Result<()> {
     assert_eq!(thread.id, conversation_id);
     assert_eq!(thread.preview, preview);
     assert_eq!(thread.model_provider, "mock_provider");
-    assert!(thread.path.as_ref().expect("thread path").is_absolute());
+    assert!(thread.path.is_absolute());
     assert_eq!(thread.cwd, PathBuf::from("/"));
     assert_eq!(thread.cli_version, "0.0.0");
     assert_eq!(thread.source, SessionSource::Cli);
@@ -136,8 +118,7 @@ async fn thread_resume_returns_rollout_history() -> Result<()> {
             assert_eq!(
                 content,
                 &vec![UserInput::Text {
-                    text: preview.to_string(),
-                    text_elements: text_elements.clone().into_iter().map(Into::into).collect(),
+                    text: preview.to_string()
                 }]
             );
         }
@@ -149,7 +130,7 @@ async fn thread_resume_returns_rollout_history() -> Result<()> {
 
 #[tokio::test]
 async fn thread_resume_prefers_path_over_thread_id() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
+    let server = create_mock_chat_completions_server(vec![]).await;
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
 
@@ -169,7 +150,7 @@ async fn thread_resume_prefers_path_over_thread_id() -> Result<()> {
     .await??;
     let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(start_resp)?;
 
-    let thread_path = thread.path.clone().expect("thread path");
+    let thread_path = thread.path.clone();
     let resume_id = mcp
         .send_thread_resume_request(ThreadResumeParams {
             thread_id: "not-a-valid-thread-id".to_string(),
@@ -186,16 +167,14 @@ async fn thread_resume_prefers_path_over_thread_id() -> Result<()> {
     let ThreadResumeResponse {
         thread: resumed, ..
     } = to_response::<ThreadResumeResponse>(resume_resp)?;
-    let mut expected = thread;
-    expected.updated_at = resumed.updated_at;
-    assert_eq!(resumed, expected);
+    assert_eq!(resumed, thread);
 
     Ok(())
 }
 
 #[tokio::test]
 async fn thread_resume_supports_history_and_overrides() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
+    let server = create_mock_chat_completions_server(vec![]).await;
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
 
@@ -223,7 +202,6 @@ async fn thread_resume_supports_history_and_overrides() -> Result<()> {
         content: vec![ContentItem::InputText {
             text: history_text.to_string(),
         }],
-        end_turn: None,
     }];
 
     // Resume with explicit history and override the model.
@@ -253,91 +231,6 @@ async fn thread_resume_supports_history_and_overrides() -> Result<()> {
     Ok(())
 }
 
-#[tokio::test]
-async fn thread_resume_accepts_personality_override_v2() -> Result<()> {
-    skip_if_no_network!(Ok(()));
-
-    let server = responses::start_mock_server().await;
-    let body = responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_assistant_message("msg-1", "Done"),
-        responses::ev_completed("resp-1"),
-    ]);
-    let response_mock = responses::mount_sse_once(&server, body).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let start_id = mcp
-        .send_thread_start_request(ThreadStartParams {
-            model: Some("gpt-5.2-codex".to_string()),
-            ..Default::default()
-        })
-        .await?;
-    let start_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(start_id)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(start_resp)?;
-
-    let resume_id = mcp
-        .send_thread_resume_request(ThreadResumeParams {
-            thread_id: thread.id.clone(),
-            model: Some("gpt-5.2-codex".to_string()),
-            personality: Some(Personality::Friendly),
-            ..Default::default()
-        })
-        .await?;
-    let resume_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(resume_id)),
-    )
-    .await??;
-    let _resume: ThreadResumeResponse = to_response::<ThreadResumeResponse>(resume_resp)?;
-
-    let turn_id = mcp
-        .send_turn_start_request(TurnStartParams {
-            thread_id: thread.id,
-            input: vec![UserInput::Text {
-                text: "Hello".to_string(),
-                text_elements: Vec::new(),
-            }],
-            ..Default::default()
-        })
-        .await?;
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(turn_id)),
-    )
-    .await??;
-
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("turn/completed"),
-    )
-    .await??;
-
-    let request = response_mock.single_request();
-    let developer_texts = request.message_input_texts("developer");
-    assert!(
-        !developer_texts
-            .iter()
-            .any(|text| text.contains("<personality_spec>")),
-        "did not expect a personality update message in developer input, got {developer_texts:?}"
-    );
-    let instructions_text = request.instructions_text();
-    assert!(
-        instructions_text.contains(DEFAULT_BASE_INSTRUCTIONS),
-        "expected default base instructions from history, got {instructions_text:?}"
-    );
-
-    Ok(())
-}
-
 // Helper to create a config.toml pointing at the mock model server.
 fn create_config_toml(codex_home: &std::path::Path, server_uri: &str) -> std::io::Result<()> {
     let config_toml = codex_home.join("config.toml");
@@ -351,13 +244,10 @@ sandbox_mode = "read-only"
 
 model_provider = "mock_provider"
 
-[features]
-remote_models = false
-
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/app-server/tests/suite/v2/thread_rollback.rs

@@ -1,7 +1,7 @@
 use anyhow::Result;
 use app_test_support::McpProcess;
 use app_test_support::create_final_assistant_message_sse_response;
-use app_test_support::create_mock_responses_server_sequence_unchecked;
+use app_test_support::create_mock_chat_completions_server_unchecked;
 use app_test_support::to_response;
 use codex_app_server_protocol::JSONRPCResponse;
 use codex_app_server_protocol::RequestId;
@@ -28,7 +28,7 @@ async fn thread_rollback_drops_last_turns_and_persists_to_rollout() -> Result<()
         create_final_assistant_message_sse_response("Done")?,
         create_final_assistant_message_sse_response("Done")?,
     ];
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
+    let server = create_mock_chat_completions_server_unchecked(responses).await;
 
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
@@ -57,7 +57,6 @@ async fn thread_rollback_drops_last_turns_and_persists_to_rollout() -> Result<()
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: first_text.to_string(),
-                text_elements: Vec::new(),
             }],
             ..Default::default()
         })
@@ -78,7 +77,6 @@ async fn thread_rollback_drops_last_turns_and_persists_to_rollout() -> Result<()
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "Second".to_string(),
-                text_elements: Vec::new(),
             }],
             ..Default::default()
         })
@@ -117,8 +115,7 @@ async fn thread_rollback_drops_last_turns_and_persists_to_rollout() -> Result<()
             assert_eq!(
                 content,
                 &vec![V2UserInput::Text {
-                    text: first_text.to_string(),
-                    text_elements: Vec::new(),
+                    text: first_text.to_string()
                 }]
             );
         }
@@ -146,8 +143,7 @@ async fn thread_rollback_drops_last_turns_and_persists_to_rollout() -> Result<()
             assert_eq!(
                 content,
                 &vec![V2UserInput::Text {
-                    text: first_text.to_string(),
-                    text_elements: Vec::new(),
+                    text: first_text.to_string()
                 }]
             );
         }
@@ -172,7 +168,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/app-server/tests/suite/v2/thread_start.rs

@@ -1,6 +1,6 @@
 use anyhow::Result;
 use app_test_support::McpProcess;
-use app_test_support::create_mock_responses_server_repeating_assistant;
+use app_test_support::create_mock_chat_completions_server;
 use app_test_support::to_response;
 use codex_app_server_protocol::JSONRPCNotification;
 use codex_app_server_protocol::JSONRPCResponse;
@@ -8,9 +8,6 @@ use codex_app_server_protocol::RequestId;
 use codex_app_server_protocol::ThreadStartParams;
 use codex_app_server_protocol::ThreadStartResponse;
 use codex_app_server_protocol::ThreadStartedNotification;
-use codex_core::config::set_project_trust_level;
-use codex_protocol::config_types::TrustLevel;
-use codex_protocol::openai_models::ReasoningEffort;
 use std::path::Path;
 use tempfile::TempDir;
 use tokio::time::timeout;
@@ -20,7 +17,7 @@ const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs
 #[tokio::test]
 async fn thread_start_creates_thread_and_emits_started() -> Result<()> {
     // Provide a mock server and config so model wiring is valid.
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
+    let server = create_mock_chat_completions_server(vec![]).await;
 
     let codex_home = TempDir::new()?;
     create_config_toml(codex_home.path(), &server.uri())?;
@@ -72,47 +69,6 @@ async fn thread_start_creates_thread_and_emits_started() -> Result<()> {
     Ok(())
 }
 
-#[tokio::test]
-async fn thread_start_respects_project_config_from_cwd() -> Result<()> {
-    let server = create_mock_responses_server_repeating_assistant("Done").await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(codex_home.path(), &server.uri())?;
-
-    let workspace = TempDir::new()?;
-    let project_config_dir = workspace.path().join(".codex");
-    std::fs::create_dir_all(&project_config_dir)?;
-    std::fs::write(
-        project_config_dir.join("config.toml"),
-        r#"
-model_reasoning_effort = "high"
-"#,
-    )?;
-    set_project_trust_level(codex_home.path(), workspace.path(), TrustLevel::Trusted)?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let req_id = mcp
-        .send_thread_start_request(ThreadStartParams {
-            cwd: Some(workspace.path().to_string_lossy().into_owned()),
-            ..Default::default()
-        })
-        .await?;
-
-    let resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(req_id)),
-    )
-    .await??;
-    let ThreadStartResponse {
-        reasoning_effort, ..
-    } = to_response::<ThreadStartResponse>(resp)?;
-
-    assert_eq!(reasoning_effort, Some(ReasoningEffort::High));
-    Ok(())
-}
-
 // Helper to create a config.toml pointing at the mock model server.
 fn create_config_toml(codex_home: &Path, server_uri: &str) -> std::io::Result<()> {
     let config_toml = codex_home.join("config.toml");
@@ -129,7 +85,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/app-server/tests/suite/v2/turn_interrupt.rs

@@ -2,7 +2,7 @@
 
 use anyhow::Result;
 use app_test_support::McpProcess;
-use app_test_support::create_mock_responses_server_sequence;
+use app_test_support::create_mock_chat_completions_server;
 use app_test_support::create_shell_command_sse_response;
 use app_test_support::to_response;
 use codex_app_server_protocol::JSONRPCNotification;
@@ -41,7 +41,7 @@ async fn turn_interrupt_aborts_running_turn() -> Result<()> {
     std::fs::create_dir(&working_directory)?;
 
     // Mock server: long-running shell command then (after abort) nothing else needed.
-    let server = create_mock_responses_server_sequence(vec![create_shell_command_sse_response(
+    let server = create_mock_chat_completions_server(vec![create_shell_command_sse_response(
         shell_command.clone(),
         Some(&working_directory),
         Some(10_000),
@@ -73,7 +73,6 @@ async fn turn_interrupt_aborts_running_turn() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "run sleep".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: Some(working_directory.clone()),
             ..Default::default()
@@ -136,7 +135,7 @@ model_provider = "mock_provider"
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/app-server/tests/suite/v2/turn_start.rs

@@ -3,13 +3,11 @@ use app_test_support::McpProcess;
 use app_test_support::create_apply_patch_sse_response;
 use app_test_support::create_exec_command_sse_response;
 use app_test_support::create_final_assistant_message_sse_response;
-use app_test_support::create_mock_responses_server_sequence;
-use app_test_support::create_mock_responses_server_sequence_unchecked;
+use app_test_support::create_mock_chat_completions_server;
+use app_test_support::create_mock_chat_completions_server_unchecked;
 use app_test_support::create_shell_command_sse_response;
 use app_test_support::format_with_current_shell_display;
 use app_test_support::to_response;
-use codex_app_server_protocol::ByteRange;
-use codex_app_server_protocol::ClientInfo;
 use codex_app_server_protocol::CommandExecutionApprovalDecision;
 use codex_app_server_protocol::CommandExecutionRequestApprovalResponse;
 use codex_app_server_protocol::CommandExecutionStatus;
@@ -24,7 +22,6 @@ use codex_app_server_protocol::PatchApplyStatus;
 use codex_app_server_protocol::PatchChangeKind;
 use codex_app_server_protocol::RequestId;
 use codex_app_server_protocol::ServerRequest;
-use codex_app_server_protocol::TextElement;
 use codex_app_server_protocol::ThreadItem;
 use codex_app_server_protocol::ThreadStartParams;
 use codex_app_server_protocol::ThreadStartResponse;
@@ -34,185 +31,15 @@ use codex_app_server_protocol::TurnStartResponse;
 use codex_app_server_protocol::TurnStartedNotification;
 use codex_app_server_protocol::TurnStatus;
 use codex_app_server_protocol::UserInput as V2UserInput;
-use codex_core::features::FEATURES;
-use codex_core::features::Feature;
 use codex_core::protocol_config_types::ReasoningSummary;
-use codex_protocol::config_types::CollaborationMode;
-use codex_protocol::config_types::ModeKind;
-use codex_protocol::config_types::Personality;
-use codex_protocol::config_types::Settings;
 use codex_protocol::openai_models::ReasoningEffort;
-use core_test_support::responses;
 use core_test_support::skip_if_no_network;
 use pretty_assertions::assert_eq;
-use std::collections::BTreeMap;
 use std::path::Path;
 use tempfile::TempDir;
 use tokio::time::timeout;
 
 const DEFAULT_READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
-const TEST_ORIGINATOR: &str = "codex_vscode";
-
-#[tokio::test]
-async fn turn_start_sends_originator_header() -> Result<()> {
-    let responses = vec![create_final_assistant_message_sse_response("Done")?];
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(
-        codex_home.path(),
-        &server.uri(),
-        "never",
-        &BTreeMap::default(),
-    )?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.initialize_with_client_info(ClientInfo {
-            name: TEST_ORIGINATOR.to_string(),
-            title: Some("Codex VS Code Extension".to_string()),
-            version: "0.1.0".to_string(),
-        }),
-    )
-    .await??;
-
-    let thread_req = mcp
-        .send_thread_start_request(ThreadStartParams {
-            model: Some("mock-model".to_string()),
-            ..Default::default()
-        })
-        .await?;
-    let thread_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(thread_req)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(thread_resp)?;
-
-    let turn_req = mcp
-        .send_turn_start_request(TurnStartParams {
-            thread_id: thread.id.clone(),
-            input: vec![V2UserInput::Text {
-                text: "Hello".to_string(),
-                text_elements: Vec::new(),
-            }],
-            ..Default::default()
-        })
-        .await?;
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(turn_req)),
-    )
-    .await??;
-
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("turn/completed"),
-    )
-    .await??;
-
-    let requests = server
-        .received_requests()
-        .await
-        .expect("failed to fetch received requests");
-    assert!(!requests.is_empty());
-    for request in requests {
-        let originator = request
-            .headers
-            .get("originator")
-            .expect("originator header missing");
-        assert_eq!(originator.to_str()?, TEST_ORIGINATOR);
-    }
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn turn_start_emits_user_message_item_with_text_elements() -> Result<()> {
-    let responses = vec![create_final_assistant_message_sse_response("Done")?];
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(
-        codex_home.path(),
-        &server.uri(),
-        "never",
-        &BTreeMap::default(),
-    )?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let thread_req = mcp
-        .send_thread_start_request(ThreadStartParams {
-            model: Some("mock-model".to_string()),
-            ..Default::default()
-        })
-        .await?;
-    let thread_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(thread_req)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(thread_resp)?;
-
-    let text_elements = vec![TextElement::new(
-        ByteRange { start: 0, end: 5 },
-        Some("<note>".to_string()),
-    )];
-    let turn_req = mcp
-        .send_turn_start_request(TurnStartParams {
-            thread_id: thread.id.clone(),
-            input: vec![V2UserInput::Text {
-                text: "Hello".to_string(),
-                text_elements: text_elements.clone(),
-            }],
-            ..Default::default()
-        })
-        .await?;
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(turn_req)),
-    )
-    .await??;
-
-    let user_message_item = timeout(DEFAULT_READ_TIMEOUT, async {
-        loop {
-            let notification = mcp
-                .read_stream_until_notification_message("item/started")
-                .await?;
-            let params = notification.params.expect("item/started params");
-            let item_started: ItemStartedNotification =
-                serde_json::from_value(params).expect("deserialize item/started notification");
-            if let ThreadItem::UserMessage { .. } = item_started.item {
-                return Ok::<ThreadItem, anyhow::Error>(item_started.item);
-            }
-        }
-    })
-    .await??;
-
-    match user_message_item {
-        ThreadItem::UserMessage { content, .. } => {
-            assert_eq!(
-                content,
-                vec![V2UserInput::Text {
-                    text: "Hello".to_string(),
-                    text_elements,
-                }]
-            );
-        }
-        other => panic!("expected user message item, got {other:?}"),
-    }
-
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("turn/completed"),
-    )
-    .await??;
-
-    Ok(())
-}
 
 #[tokio::test]
 async fn turn_start_emits_notifications_and_accepts_model_override() -> Result<()> {
@@ -223,15 +50,10 @@ async fn turn_start_emits_notifications_and_accepts_model_override() -> Result<(
         create_final_assistant_message_sse_response("Done")?,
         create_final_assistant_message_sse_response("Done")?,
     ];
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
+    let server = create_mock_chat_completions_server_unchecked(responses).await;
 
     let codex_home = TempDir::new()?;
-    create_config_toml(
-        codex_home.path(),
-        &server.uri(),
-        "never",
-        &BTreeMap::default(),
-    )?;
+    create_config_toml(codex_home.path(), &server.uri(), "never")?;
 
     let mut mcp = McpProcess::new(codex_home.path()).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -256,7 +78,6 @@ async fn turn_start_emits_notifications_and_accepts_model_override() -> Result<(
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "Hello".to_string(),
-                text_elements: Vec::new(),
             }],
             ..Default::default()
         })
@@ -289,7 +110,6 @@ async fn turn_start_emits_notifications_and_accepts_model_override() -> Result<(
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "Second".to_string(),
-                text_elements: Vec::new(),
             }],
             model: Some("mock-model-override".to_string()),
             ..Default::default()
@@ -328,161 +148,6 @@ async fn turn_start_emits_notifications_and_accepts_model_override() -> Result<(
     Ok(())
 }
 
-#[tokio::test]
-async fn turn_start_accepts_collaboration_mode_override_v2() -> Result<()> {
-    skip_if_no_network!(Ok(()));
-
-    let server = responses::start_mock_server().await;
-    let body = responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_assistant_message("msg-1", "Done"),
-        responses::ev_completed("resp-1"),
-    ]);
-    let response_mock = responses::mount_sse_once(&server, body).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(
-        codex_home.path(),
-        &server.uri(),
-        "never",
-        &BTreeMap::default(),
-    )?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let thread_req = mcp
-        .send_thread_start_request(ThreadStartParams {
-            model: Some("gpt-5.2-codex".to_string()),
-            ..Default::default()
-        })
-        .await?;
-    let thread_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(thread_req)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(thread_resp)?;
-
-    let collaboration_mode = CollaborationMode {
-        mode: ModeKind::Custom,
-        settings: Settings {
-            model: "mock-model-collab".to_string(),
-            reasoning_effort: Some(ReasoningEffort::High),
-            developer_instructions: None,
-        },
-    };
-
-    let turn_req = mcp
-        .send_turn_start_request(TurnStartParams {
-            thread_id: thread.id.clone(),
-            input: vec![V2UserInput::Text {
-                text: "Hello".to_string(),
-                text_elements: Vec::new(),
-            }],
-            model: Some("mock-model-override".to_string()),
-            effort: Some(ReasoningEffort::Low),
-            summary: Some(ReasoningSummary::Auto),
-            output_schema: None,
-            collaboration_mode: Some(collaboration_mode),
-            ..Default::default()
-        })
-        .await?;
-    let turn_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(turn_req)),
-    )
-    .await??;
-    let _turn: TurnStartResponse = to_response::<TurnStartResponse>(turn_resp)?;
-
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("turn/completed"),
-    )
-    .await??;
-
-    let request = response_mock.single_request();
-    let payload = request.body_json();
-    assert_eq!(payload["model"].as_str(), Some("mock-model-collab"));
-
-    Ok(())
-}
-
-#[tokio::test]
-async fn turn_start_accepts_personality_override_v2() -> Result<()> {
-    skip_if_no_network!(Ok(()));
-
-    let server = responses::start_mock_server().await;
-    let body = responses::sse(vec![
-        responses::ev_response_created("resp-1"),
-        responses::ev_assistant_message("msg-1", "Done"),
-        responses::ev_completed("resp-1"),
-    ]);
-    let response_mock = responses::mount_sse_once(&server, body).await;
-
-    let codex_home = TempDir::new()?;
-    create_config_toml(
-        codex_home.path(),
-        &server.uri(),
-        "never",
-        &BTreeMap::default(),
-    )?;
-
-    let mut mcp = McpProcess::new(codex_home.path()).await?;
-    timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
-
-    let thread_req = mcp
-        .send_thread_start_request(ThreadStartParams {
-            model: Some("exp-codex-personality".to_string()),
-            ..Default::default()
-        })
-        .await?;
-    let thread_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(thread_req)),
-    )
-    .await??;
-    let ThreadStartResponse { thread, .. } = to_response::<ThreadStartResponse>(thread_resp)?;
-
-    let turn_req = mcp
-        .send_turn_start_request(TurnStartParams {
-            thread_id: thread.id.clone(),
-            input: vec![V2UserInput::Text {
-                text: "Hello".to_string(),
-                text_elements: Vec::new(),
-            }],
-            personality: Some(Personality::Friendly),
-            ..Default::default()
-        })
-        .await?;
-    let turn_resp: JSONRPCResponse = timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_response_message(RequestId::Integer(turn_req)),
-    )
-    .await??;
-    let _turn: TurnStartResponse = to_response::<TurnStartResponse>(turn_resp)?;
-
-    timeout(
-        DEFAULT_READ_TIMEOUT,
-        mcp.read_stream_until_notification_message("turn/completed"),
-    )
-    .await??;
-
-    let request = response_mock.single_request();
-    let developer_texts = request.message_input_texts("developer");
-    if developer_texts.is_empty() {
-        eprintln!("request body: {}", request.body_json());
-    }
-    assert!(
-        developer_texts
-            .iter()
-            .any(|text| text.contains("<personality_spec>")),
-        "expected personality update message in developer input, got {developer_texts:?}"
-    );
-
-    Ok(())
-}
-
 #[tokio::test]
 async fn turn_start_accepts_local_image_input() -> Result<()> {
     // Two Codex turns hit the mock model (session start + turn/start).
@@ -492,15 +157,10 @@ async fn turn_start_accepts_local_image_input() -> Result<()> {
     ];
     // Use the unchecked variant because the request payload includes a LocalImage
     // which the strict matcher does not currently cover.
-    let server = create_mock_responses_server_sequence_unchecked(responses).await;
+    let server = create_mock_chat_completions_server_unchecked(responses).await;
 
     let codex_home = TempDir::new()?;
-    create_config_toml(
-        codex_home.path(),
-        &server.uri(),
-        "never",
-        &BTreeMap::default(),
-    )?;
+    create_config_toml(codex_home.path(), &server.uri(), "never")?;
 
     let mut mcp = McpProcess::new(codex_home.path()).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -573,14 +233,9 @@ async fn turn_start_exec_approval_toggle_v2() -> Result<()> {
         )?,
         create_final_assistant_message_sse_response("done 2")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
+    let server = create_mock_chat_completions_server(responses).await;
     // Default approval is untrusted to force elicitation on first turn.
-    create_config_toml(
-        codex_home.as_path(),
-        &server.uri(),
-        "untrusted",
-        &BTreeMap::default(),
-    )?;
+    create_config_toml(codex_home.as_path(), &server.uri(), "untrusted")?;
 
     let mut mcp = McpProcess::new(codex_home.as_path()).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -605,7 +260,6 @@ async fn turn_start_exec_approval_toggle_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "run python".to_string(),
-                text_elements: Vec::new(),
             }],
             ..Default::default()
         })
@@ -651,7 +305,6 @@ async fn turn_start_exec_approval_toggle_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "run python again".to_string(),
-                text_elements: Vec::new(),
             }],
             approval_policy: Some(codex_app_server_protocol::AskForApproval::Never),
             sandbox_policy: Some(codex_app_server_protocol::SandboxPolicy::DangerFullAccess),
@@ -704,13 +357,8 @@ async fn turn_start_exec_approval_decline_v2() -> Result<()> {
         )?,
         create_final_assistant_message_sse_response("done")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
-    create_config_toml(
-        codex_home.as_path(),
-        &server.uri(),
-        "untrusted",
-        &BTreeMap::default(),
-    )?;
+    let server = create_mock_chat_completions_server(responses).await;
+    create_config_toml(codex_home.as_path(), &server.uri(), "untrusted")?;
 
     let mut mcp = McpProcess::new(codex_home.as_path()).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -733,7 +381,6 @@ async fn turn_start_exec_approval_decline_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "run python".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: Some(workspace.clone()),
             ..Default::default()
@@ -856,13 +503,8 @@ async fn turn_start_updates_sandbox_and_cwd_between_turns_v2() -> Result<()> {
         )?,
         create_final_assistant_message_sse_response("done second")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
-    create_config_toml(
-        &codex_home,
-        &server.uri(),
-        "untrusted",
-        &BTreeMap::default(),
-    )?;
+    let server = create_mock_chat_completions_server(responses).await;
+    create_config_toml(&codex_home, &server.uri(), "untrusted")?;
 
     let mut mcp = McpProcess::new(&codex_home).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -887,7 +529,6 @@ async fn turn_start_updates_sandbox_and_cwd_between_turns_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "first turn".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: Some(first_cwd.clone()),
             approval_policy: Some(codex_app_server_protocol::AskForApproval::Never),
@@ -900,9 +541,7 @@ async fn turn_start_updates_sandbox_and_cwd_between_turns_v2() -> Result<()> {
             model: Some("mock-model".to_string()),
             effort: Some(ReasoningEffort::Medium),
             summary: Some(ReasoningSummary::Auto),
-            personality: None,
             output_schema: None,
-            collaboration_mode: None,
         })
         .await?;
     timeout(
@@ -915,7 +554,6 @@ async fn turn_start_updates_sandbox_and_cwd_between_turns_v2() -> Result<()> {
         mcp.read_stream_until_notification_message("codex/event/task_complete"),
     )
     .await??;
-    mcp.clear_message_buffer();
 
     // second turn with workspace-write and second_cwd, ensure exec begins in second_cwd
     let second_turn = mcp
@@ -923,7 +561,6 @@ async fn turn_start_updates_sandbox_and_cwd_between_turns_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "second turn".to_string(),
-                text_elements: Vec::new(),
             }],
             cwd: Some(second_cwd.clone()),
             approval_policy: Some(codex_app_server_protocol::AskForApproval::Never),
@@ -931,9 +568,7 @@ async fn turn_start_updates_sandbox_and_cwd_between_turns_v2() -> Result<()> {
             model: Some("mock-model".to_string()),
             effort: Some(ReasoningEffort::Medium),
             summary: Some(ReasoningSummary::Auto),
-            personality: None,
             output_schema: None,
-            collaboration_mode: None,
         })
         .await?;
     timeout(
@@ -1001,13 +636,8 @@ async fn turn_start_file_change_approval_v2() -> Result<()> {
         create_apply_patch_sse_response(patch, "patch-call")?,
         create_final_assistant_message_sse_response("patch applied")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
-    create_config_toml(
-        &codex_home,
-        &server.uri(),
-        "untrusted",
-        &BTreeMap::default(),
-    )?;
+    let server = create_mock_chat_completions_server(responses).await;
+    create_config_toml(&codex_home, &server.uri(), "untrusted")?;
 
     let mut mcp = McpProcess::new(&codex_home).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -1031,7 +661,6 @@ async fn turn_start_file_change_approval_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "apply patch".into(),
-                text_elements: Vec::new(),
             }],
             cwd: Some(workspace.clone()),
             ..Default::default()
@@ -1183,13 +812,8 @@ async fn turn_start_file_change_approval_accept_for_session_persists_v2() -> Res
         create_apply_patch_sse_response(patch_2, "patch-call-2")?,
         create_final_assistant_message_sse_response("patch 2 applied")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
-    create_config_toml(
-        &codex_home,
-        &server.uri(),
-        "untrusted",
-        &BTreeMap::default(),
-    )?;
+    let server = create_mock_chat_completions_server(responses).await;
+    create_config_toml(&codex_home, &server.uri(), "untrusted")?;
 
     let mut mcp = McpProcess::new(&codex_home).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -1214,7 +838,6 @@ async fn turn_start_file_change_approval_accept_for_session_persists_v2() -> Res
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "apply patch 1".into(),
-                text_elements: Vec::new(),
             }],
             cwd: Some(workspace.clone()),
             ..Default::default()
@@ -1291,7 +914,6 @@ async fn turn_start_file_change_approval_accept_for_session_persists_v2() -> Res
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "apply patch 2".into(),
-                text_elements: Vec::new(),
             }],
             cwd: Some(workspace.clone()),
             ..Default::default()
@@ -1364,13 +986,8 @@ async fn turn_start_file_change_approval_decline_v2() -> Result<()> {
         create_apply_patch_sse_response(patch, "patch-call")?,
         create_final_assistant_message_sse_response("patch declined")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
-    create_config_toml(
-        &codex_home,
-        &server.uri(),
-        "untrusted",
-        &BTreeMap::default(),
-    )?;
+    let server = create_mock_chat_completions_server(responses).await;
+    create_config_toml(&codex_home, &server.uri(), "untrusted")?;
 
     let mut mcp = McpProcess::new(&codex_home).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -1394,7 +1011,6 @@ async fn turn_start_file_change_approval_decline_v2() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "apply patch".into(),
-                text_elements: Vec::new(),
             }],
             cwd: Some(workspace.clone()),
             ..Default::default()
@@ -1508,14 +1124,18 @@ async fn command_execution_notifications_include_process_id() -> Result<()> {
         create_exec_command_sse_response("uexec-1")?,
         create_final_assistant_message_sse_response("done")?,
     ];
-    let server = create_mock_responses_server_sequence(responses).await;
+    let server = create_mock_chat_completions_server(responses).await;
     let codex_home = TempDir::new()?;
-    create_config_toml(
-        codex_home.path(),
-        &server.uri(),
-        "never",
-        &BTreeMap::from([(Feature::UnifiedExec, true)]),
-    )?;
+    create_config_toml(codex_home.path(), &server.uri(), "never")?;
+    let config_toml = codex_home.path().join("config.toml");
+    let mut config_contents = std::fs::read_to_string(&config_toml)?;
+    config_contents.push_str(
+        r#"
+[features]
+unified_exec = true
+"#,
+    );
+    std::fs::write(&config_toml, config_contents)?;
 
     let mut mcp = McpProcess::new(codex_home.path()).await?;
     timeout(DEFAULT_READ_TIMEOUT, mcp.initialize()).await??;
@@ -1538,7 +1158,6 @@ async fn command_execution_notifications_include_process_id() -> Result<()> {
             thread_id: thread.id.clone(),
             input: vec![V2UserInput::Text {
                 text: "run a command".to_string(),
-                text_elements: Vec::new(),
             }],
             ..Default::default()
         })
@@ -1608,18 +1227,8 @@ async fn command_execution_notifications_include_process_id() -> Result<()> {
         unreachable!("loop ensures we break on command execution items");
     };
     assert_eq!(completed_id, "uexec-1");
-    assert!(
-        matches!(
-            completed_status,
-            CommandExecutionStatus::Completed | CommandExecutionStatus::Failed
-        ),
-        "unexpected command execution status: {completed_status:?}"
-    );
-    if completed_status == CommandExecutionStatus::Completed {
-        assert_eq!(exit_code, Some(0));
-    } else {
-        assert!(exit_code.is_some(), "expected exit_code for failed command");
-    }
+    assert_eq!(completed_status, CommandExecutionStatus::Completed);
+    assert_eq!(exit_code, Some(0));
     assert_eq!(
         completed_process_id.as_deref(),
         Some(started_process_id.as_str())
@@ -1639,24 +1248,7 @@ fn create_config_toml(
     codex_home: &Path,
     server_uri: &str,
     approval_policy: &str,
-    feature_flags: &BTreeMap<Feature, bool>,
 ) -> std::io::Result<()> {
-    let mut features = BTreeMap::from([(Feature::RemoteModels, false)]);
-    for (feature, enabled) in feature_flags {
-        features.insert(*feature, *enabled);
-    }
-    let feature_entries = features
-        .into_iter()
-        .map(|(feature, enabled)| {
-            let key = FEATURES
-                .iter()
-                .find(|spec| spec.id == feature)
-                .map(|spec| spec.key)
-                .unwrap_or_else(|| panic!("missing feature key for {feature:?}"));
-            format!("{key} = {enabled}")
-        })
-        .collect::<Vec<_>>()
-        .join("\n");
     let config_toml = codex_home.join("config.toml");
     std::fs::write(
         config_toml,
@@ -1668,13 +1260,10 @@ sandbox_mode = "read-only"
 
 model_provider = "mock_provider"
 
-[features]
-{feature_entries}
-
 [model_providers.mock_provider]
 name = "Mock provider for test"
 base_url = "{server_uri}/v1"
-wire_api = "responses"
+wire_api = "chat"
 request_max_retries = 0
 stream_max_retries = 0
 "#

codex-rs/apply-patch/BUILD.bazel

@@ -1,11 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-exports_files(["apply_patch_tool_instructions.md"])
-
-codex_rust_crate(
-    name = "apply-patch",
-    crate_name = "codex_apply_patch",
-    compile_data = [
-        "apply_patch_tool_instructions.md",
-    ],
-)

codex-rs/apply-patch/tests/suite/scenarios.rs

@@ -1,4 +1,3 @@
-use codex_utils_cargo_bin::find_resource;
 use pretty_assertions::assert_eq;
 use std::collections::BTreeMap;
 use std::fs;
@@ -9,7 +8,7 @@ use tempfile::tempdir;
 
 #[test]
 fn test_apply_patch_scenarios() -> anyhow::Result<()> {
-    let scenarios_dir = find_resource!("tests/fixtures/scenarios")?;
+    let scenarios_dir = Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/scenarios");
     for scenario in fs::read_dir(scenarios_dir)? {
         let scenario = scenario?;
         let path = scenario.path();

codex-rs/arg0/BUILD.bazel

@@ -1,6 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "arg0",
-    crate_name = "codex_arg0",
-)

codex-rs/arg0/src/lib.rs

@@ -145,41 +145,11 @@ where
 /// that `apply_patch` can be on the PATH without requiring the user to
 /// install a separate `apply_patch` executable, simplifying the deployment of
 /// Codex CLI.
-/// Note: In debug builds the temp-dir guard is disabled to ease local testing.
 ///
 /// IMPORTANT: This function modifies the PATH environment variable, so it MUST
 /// be called before multiple threads are spawned.
 pub fn prepend_path_entry_for_codex_aliases() -> std::io::Result<TempDir> {
-    let codex_home = codex_core::config::find_codex_home()?;
-    #[cfg(not(debug_assertions))]
-    {
-        // Guard against placing helpers in system temp directories outside debug builds.
-        let temp_root = std::env::temp_dir();
-        if codex_home.starts_with(&temp_root) {
-            return Err(std::io::Error::new(
-                std::io::ErrorKind::InvalidInput,
-                format!(
-                    "Refusing to create helper binaries under temporary dir {temp_root:?} (codex_home: {codex_home:?})"
-                ),
-            ));
-        }
-    }
-
-    std::fs::create_dir_all(&codex_home)?;
-    // Use a CODEX_HOME-scoped temp root to avoid cluttering the top-level directory.
-    let temp_root = codex_home.join("tmp").join("path");
-    std::fs::create_dir_all(&temp_root)?;
-    #[cfg(unix)]
-    {
-        use std::os::unix::fs::PermissionsExt;
-
-        // Ensure only the current user can access the temp directory.
-        std::fs::set_permissions(&temp_root, std::fs::Permissions::from_mode(0o700))?;
-    }
-
-    let temp_dir = tempfile::Builder::new()
-        .prefix("codex-arg0")
-        .tempdir_in(&temp_root)?;
+    let temp_dir = TempDir::new()?;
     let path = temp_dir.path();
 
     for filename in &[

codex-rs/async-utils/BUILD.bazel

@@ -1,6 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "async-utils",
-    crate_name = "codex_async_utils",
-)

codex-rs/backend-client/BUILD.bazel

@@ -1,7 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "backend-client",
-    crate_name = "codex_backend_client",
-    compile_data = glob(["tests/fixtures/**"]),
-)

codex-rs/backend-client/src/client.rs

@@ -73,8 +73,8 @@ impl Client {
         })
     }
 
-    pub fn from_auth(base_url: impl Into<String>, auth: &CodexAuth) -> Result<Self> {
-        let token = auth.get_token().map_err(anyhow::Error::from)?;
+    pub async fn from_auth(base_url: impl Into<String>, auth: &CodexAuth) -> Result<Self> {
+        let token = auth.get_token().await.map_err(anyhow::Error::from)?;
         let mut client = Self::new(base_url)?
             .with_user_agent(get_codex_user_agent())
             .with_bearer_token(token);
@@ -174,7 +174,6 @@ impl Client {
         limit: Option<i32>,
         task_filter: Option<&str>,
         environment_id: Option<&str>,
-        cursor: Option<&str>,
     ) -> Result<PaginatedListTaskListItem> {
         let url = match self.path_style {
             PathStyle::CodexApi => format!("{}/api/codex/tasks/list", self.base_url),
@@ -191,11 +190,6 @@ impl Client {
         } else {
             req
         };
-        let req = if let Some(c) = cursor {
-            req.query(&[("cursor", c)])
-        } else {
-            req
-        };
         let req = if let Some(id) = environment_id {
             req.query(&[("environment_id", id)])
         } else {

codex-rs/chatgpt/BUILD.bazel

@@ -1,6 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate")
-
-codex_rust_crate(
-    name = "chatgpt",
-    crate_name = "codex_chatgpt",
-)

codex-rs/chatgpt/Cargo.toml

@@ -12,7 +12,6 @@ anyhow = { workspace = true }
 clap = { workspace = true, features = ["derive"] }
 codex-common = { workspace = true, features = ["cli"] }
 codex-core = { workspace = true }
-codex-utils-cargo-bin = { workspace = true }
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
 tokio = { workspace = true, features = ["full"] }

codex-rs/chatgpt/src/chatgpt_client.rs

@@ -5,7 +5,6 @@ use crate::chatgpt_token::get_chatgpt_token_data;
 use crate::chatgpt_token::init_chatgpt_token_from_auth;
 
 use anyhow::Context;
-use serde::Serialize;
 use serde::de::DeserializeOwned;
 
 /// Make a GET request to the ChatGPT backend API.
@@ -49,37 +48,3 @@ pub(crate) async fn chatgpt_get_request<T: DeserializeOwned>(
         anyhow::bail!("Request failed with status {status}: {body}")
     }
 }
-
-pub(crate) async fn chatgpt_post_request<T: DeserializeOwned, P: Serialize>(
-    config: &Config,
-    access_token: &str,
-    account_id: &str,
-    path: &str,
-    payload: &P,
-) -> anyhow::Result<T> {
-    let chatgpt_base_url = &config.chatgpt_base_url;
-    let client = create_client();
-    let url = format!("{chatgpt_base_url}{path}");
-
-    let response = client
-        .post(&url)
-        .bearer_auth(access_token)
-        .header("chatgpt-account-id", account_id)
-        .header("Content-Type", "application/json")
-        .json(payload)
-        .send()
-        .await
-        .context("Failed to send request")?;
-
-    if response.status().is_success() {
-        let result: T = response
-            .json()
-            .await
-            .context("Failed to parse JSON response")?;
-        Ok(result)
-    } else {
-        let status = response.status();
-        let body = response.text().await.unwrap_or_default();
-        anyhow::bail!("Request failed with status {status}: {body}")
-    }
-}

codex-rs/chatgpt/src/chatgpt_token.rs

@@ -1,4 +1,4 @@
-use codex_core::AuthManager;
+use codex_core::CodexAuth;
 use std::path::Path;
 use std::sync::LazyLock;
 use std::sync::RwLock;
@@ -23,10 +23,9 @@ pub async fn init_chatgpt_token_from_auth(
     codex_home: &Path,
     auth_credentials_store_mode: AuthCredentialsStoreMode,
 ) -> std::io::Result<()> {
-    let auth_manager =
-        AuthManager::new(codex_home.to_path_buf(), false, auth_credentials_store_mode);
-    if let Some(auth) = auth_manager.auth().await {
-        let token_data = auth.get_token_data()?;
+    let auth = CodexAuth::from_auth_storage(codex_home, auth_credentials_store_mode)?;
+    if let Some(auth) = auth {
+        let token_data = auth.get_token_data().await?;
         set_chatgpt_token_data(token_data);
     }
     Ok(())

codex-rs/chatgpt/src/connectors.rs

@@ -1,125 +0,0 @@
-use codex_core::config::Config;
-use codex_core::features::Feature;
-use serde::Deserialize;
-use serde::Serialize;
-
-use crate::chatgpt_client::chatgpt_post_request;
-use crate::chatgpt_token::get_chatgpt_token_data;
-use crate::chatgpt_token::init_chatgpt_token_from_auth;
-
-pub use codex_core::connectors::ConnectorInfo;
-pub use codex_core::connectors::connector_display_label;
-use codex_core::connectors::connector_install_url;
-pub use codex_core::connectors::list_accessible_connectors_from_mcp_tools;
-use codex_core::connectors::merge_connectors;
-
-#[derive(Debug, Serialize)]
-struct ListConnectorsRequest {
-    principals: Vec<Principal>,
-}
-
-#[derive(Debug, Serialize)]
-struct Principal {
-    #[serde(rename = "type")]
-    principal_type: PrincipalType,
-    id: String,
-}
-
-#[derive(Debug, Serialize)]
-#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
-enum PrincipalType {
-    User,
-}
-
-#[derive(Debug, Deserialize)]
-struct ListConnectorsResponse {
-    connectors: Vec<ConnectorInfo>,
-}
-
-pub async fn list_connectors(config: &Config) -> anyhow::Result<Vec<ConnectorInfo>> {
-    if !config.features.enabled(Feature::Connectors) {
-        return Ok(Vec::new());
-    }
-    let (connectors_result, accessible_result) = tokio::join!(
-        list_all_connectors(config),
-        list_accessible_connectors_from_mcp_tools(config),
-    );
-    let connectors = connectors_result?;
-    let accessible = accessible_result?;
-    Ok(merge_connectors(connectors, accessible))
-}
-
-pub async fn list_all_connectors(config: &Config) -> anyhow::Result<Vec<ConnectorInfo>> {
-    if !config.features.enabled(Feature::Connectors) {
-        return Ok(Vec::new());
-    }
-    init_chatgpt_token_from_auth(&config.codex_home, config.cli_auth_credentials_store_mode)
-        .await?;
-
-    let token_data =
-        get_chatgpt_token_data().ok_or_else(|| anyhow::anyhow!("ChatGPT token not available"))?;
-    let user_id = token_data
-        .id_token
-        .chatgpt_user_id
-        .as_deref()
-        .ok_or_else(|| {
-            anyhow::anyhow!("ChatGPT user ID not available, please re-run `codex login`")
-        })?;
-    let account_id = token_data
-        .id_token
-        .chatgpt_account_id
-        .as_deref()
-        .ok_or_else(|| {
-            anyhow::anyhow!("ChatGPT account ID not available, please re-run `codex login`")
-        })?;
-    let principal_id = format!("{user_id}__{account_id}");
-    let request = ListConnectorsRequest {
-        principals: vec![Principal {
-            principal_type: PrincipalType::User,
-            id: principal_id,
-        }],
-    };
-    let response: ListConnectorsResponse = chatgpt_post_request(
-        config,
-        token_data.access_token.as_str(),
-        account_id,
-        "/aip/connectors/list_accessible?skip_actions=true&external_logos=true",
-        &request,
-    )
-    .await?;
-    let mut connectors = response.connectors;
-    for connector in &mut connectors {
-        let install_url = match connector.install_url.take() {
-            Some(install_url) => install_url,
-            None => connector_install_url(&connector.connector_name, &connector.connector_id),
-        };
-        connector.connector_name =
-            normalize_connector_name(&connector.connector_name, &connector.connector_id);
-        connector.connector_description =
-            normalize_connector_value(connector.connector_description.as_deref());
-        connector.install_url = Some(install_url);
-        connector.is_accessible = false;
-    }
-    connectors.sort_by(|left, right| {
-        left.connector_name
-            .cmp(&right.connector_name)
-            .then_with(|| left.connector_id.cmp(&right.connector_id))
-    });
-    Ok(connectors)
-}
-
-fn normalize_connector_name(name: &str, connector_id: &str) -> String {
-    let trimmed = name.trim();
-    if trimmed.is_empty() {
-        connector_id.to_string()
-    } else {
-        trimmed.to_string()
-    }
-}
-
-fn normalize_connector_value(value: Option<&str>) -> Option<String> {
-    value
-        .map(str::trim)
-        .filter(|value| !value.is_empty())
-        .map(str::to_string)
-}

codex-rs/chatgpt/src/lib.rs

@@ -1,5 +1,4 @@
 pub mod apply_command;
 mod chatgpt_client;
 mod chatgpt_token;
-pub mod connectors;
 pub mod get_task;

codex-rs/chatgpt/tests/suite/apply_command_e2e.rs

@@ -1,6 +1,6 @@
 use codex_chatgpt::apply_command::apply_diff_from_task;
 use codex_chatgpt::get_task::GetTaskResponse;
-use codex_utils_cargo_bin::find_resource;
+use std::path::Path;
 use tempfile::TempDir;
 use tokio::process::Command;
 
@@ -68,8 +68,8 @@ async fn create_temp_git_repo() -> anyhow::Result<TempDir> {
 }
 
 async fn mock_get_task_with_fixture() -> anyhow::Result<GetTaskResponse> {
-    let fixture_path = find_resource!("tests/task_turn_fixture.json")?;
-    let fixture_content = tokio::fs::read_to_string(fixture_path).await?;
+    let fixture_path = Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/task_turn_fixture.json");
+    let fixture_content = std::fs::read_to_string(fixture_path)?;
     let response: GetTaskResponse = serde_json::from_str(&fixture_content)?;
     Ok(response)
 }

codex-rs/cli/BUILD.bazel

@@ -1,10 +0,0 @@
-load("//:defs.bzl", "codex_rust_crate", "multiplatform_binaries")
-
-codex_rust_crate(
-    name = "cli",
-    crate_name = "codex_cli",
-)
-
-multiplatform_binaries(
-    name = "codex",
-)

codex-rs/cli/Cargo.toml

@@ -30,11 +30,15 @@ codex-exec = { workspace = true }
 codex-execpolicy = { workspace = true }
 codex-login = { workspace = true }
 codex-mcp-server = { workspace = true }
+codex-process-hardening = { workspace = true }
 codex-protocol = { workspace = true }
 codex-responses-api-proxy = { workspace = true }
 codex-rmcp-client = { workspace = true }
 codex-stdio-to-uds = { workspace = true }
 codex-tui = { workspace = true }
+codex-tui2 = { workspace = true }
+codex-utils-absolute-path = { workspace = true }
+ctor = { workspace = true }
 libc = { workspace = true }
 owo-colors = { workspace = true }
 regex-lite = { workspace = true }