## Why
`item/permissions/requestApproval` sends a requested permission profile
to app-server clients. The core profile already stores filesystem
permissions as `entries`, but the v2 compatibility conversion used the
legacy `read`/`write` projection whenever possible and left `entries`
unset.
That made the request ambiguous for clients that consume the canonical
v2 shape: `permissions.fileSystem.entries` was missing even though
filesystem access was being requested. A client that rendered or echoed
grants from `entries` could treat the request as having no filesystem
permission entries, then return an empty or incomplete grant. The
app-server intersects responses with the original request, so omitted
filesystem permissions are denied.
## What Changed
- Populate `AdditionalFileSystemPermissions.entries` when converting
legacy read/write roots for request permission payloads, while
preserving `read` and `write` for compatibility.
- Mark `read` and `write` as transitional schema fields in the generated
app-server schema.
- Add regression coverage for the v2 conversion, the app-server
`item/permissions/requestApproval` round trip, and TUI app-server
approval conversion expectations.
- Refresh generated JSON and TypeScript schema fixtures.
## Verification
- `just fmt`
- `cargo test -p codex-app-server-protocol`
- `cargo test -p codex-app-server request_permissions_round_trip`
- `cargo test -p codex-tui
converts_request_permissions_into_granted_permissions`
- `cargo test -p codex-tui
resolves_permissions_and_user_input_through_app_server_request_id`
## Why
When the TUI upgrade flow moves a user to a newer model, the accepted
migration should also persist the target model's default reasoning
effort. That keeps the upgraded model and reasoning setting aligned
instead of carrying forward a stale previously saved effort from the old
model.
## What changed
- The accepted model migration path now updates in-memory config, TUI
state, and persisted model selection with the target preset's
`default_reasoning_effort`.
- The upgrade destructuring keeps `reasoning_effort_mapping` explicitly
unused because mappings are no longer consulted on accepted migrations.
- Added a catalog test that starts with a pre-existing saved reasoning
effort and verifies the accepted upgrade overwrites it with the target
model default and emits the expected persistence events.
- Rebasing onto current `main` also updates a TUI thread-session test
helper for the latest `permission_profile` field and
`ApprovalsReviewer::AutoReview` rename so CI compiles on the new base.
## Verification
- `cargo test -p codex-tui model_catalog`
- `cargo test -p codex-tui
permission_settings_sync_updates_active_snapshot_without_rewriting_side_thread`
## Why
The current cloud-requirements failures say `workspace-managed config`,
which is ambiguous and can read like it refers to local managed config
such as `managed_config.toml`.
This code path only applies to cloud requirements, so the user-facing
message should name that source directly.
## What changed
- Updated the load failure in
[`codex-rs/cloud-requirements/src/lib.rs`](46e704d1f9/codex-rs/cloud-requirements/src/lib.rs)
to say `failed to load cloud requirements (workspace-managed policies)`.
- Updated the parse failure in the same file to use the same `cloud
requirements (workspace-managed policies)` terminology.
- Kept `workspace-managed` hyphenated because it is used as a compound
modifier.
- Updated the matching assertion in
[`codex-rs/app-server/src/codex_message_processor.rs`](46e704d1f9/codex-rs/app-server/src/codex_message_processor.rs).
- Reused `CLOUD_REQUIREMENTS_LOAD_FAILED_MESSAGE` in the
`codex-cloud-requirements` test where the test is asserting that
crate-local contract directly.
## Testing
`cargo test -p codex-cloud-requirements`
Addresses #18854
## Why
The `/permissions` selector updates the active TUI session state, but
the cached session snapshot used when replaying a thread could still
contain the old approval or sandbox settings. After opening and leaving
`/side`, the main thread replay could restore those stale settings into
the `ChatWidget`, so the UI and the next submitted turn could fall back
to the old permission mode.
## What
- Sync the active thread's cached `ThreadSessionState` whenever approval
policy, sandbox policy, or approval reviewer changes.
## Verification
Confirmed bug prior to fix and correct behavior after fix.
# Why
Hooks are ready to graduate to GA in the next release!
# What
- Moves `Feature::CodexHooks` into the stable feature group.
- Marks the `codex_hooks` feature spec as `Stage::Stable` and
default-enabled.
## Why
`command/exec` is another app-server entry point that can run under
caller-provided permissions. It needs to accept `PermissionProfile`
directly so command execution is not left behind on `SandboxPolicy`
while thread APIs move forward.
Command-level profiles also need to preserve the semantics clients
expect from profile-relative paths. `:cwd` and cwd-relative deny globs
should be anchored to the resolved command cwd for a command-specific
profile, while configured deny-read restrictions such as `**/*.env =
none` still need to be enforced because they can come from config or
requirements rather than the command override itself.
## What Changed
This adds `permissionProfile` to `CommandExecParams`, rejects requests
that combine it with `sandboxPolicy`, and converts accepted profiles
into the runtime filesystem/network permissions used for command
execution.
When a command supplies a profile, the app-server resolves that profile
against the command cwd instead of the thread/server cwd. It also
preserves configured deny-read entries and `globScanMaxDepth` on the
effective filesystem policy so one-off command overrides cannot drop
those read protections. The PR also updates app-server docs/schema
fixtures and adds command-exec coverage for accepted, rejected,
cwd-scoped, and deny-read-preserving profile paths.
## Verification
- `cargo test -p codex-app-server
command_exec_permission_profile_cwd_uses_command_cwd`
- `cargo test -p codex-app-server
command_profile_preserves_configured_deny_read_restrictions`
- `cargo test -p codex-app-server
command_exec_accepts_permission_profile`
- `cargo test -p codex-app-server
command_exec_rejects_sandbox_policy_with_permission_profile`
- `just fix -p codex-app-server`
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/18283).
* #18288
* #18287
* #18286
* #18285
* #18284
* __->__ #18283
## Why
Enterprise and business-like ChatGPT plans should get Codex's Fast
service tier by default when the user or caller has not made an explicit
service-tier choice. At the same time, callers need a durable way to
choose standard routing without adding a new persisted `standard`
service tier value. This keeps existing config compatibility while
letting core own the managed default policy.
## What changed
- Resolve the effective service tier in core at session creation:
explicit `fast` or `flex` wins, explicit null/clear or
`[notice].fast_default_opt_out = true` resolves to standard routing, and
otherwise eligible ChatGPT plans resolve to Fast when FastMode is
enabled.
- Add `[notice].fast_default_opt_out` as the persisted opt-out marker
for managed Fast defaults.
- Treat app-server/TUI `service_tier: null` as an explicit
standard/clear choice by preserving that intent through config loading.
- Update TUI rendering to use core's effective service tier for startup
and status surfaces while still keeping `config.service_tier` as the
explicit configured choice.
- Update `/fast off` to clear `service_tier`, persist the opt-out
marker, and send explicit standard for subsequent turns.
## Verification
- Added unit coverage for config override/notice handling, service-tier
resolution, runtime null clearing, and `/fast off` turn propagation.
- `cargo build -p codex-cli`
Full test suite was not run locally per author request.
## Why
Clients that observe `SessionConfigured` need the same canonical
permission view that app-server thread responses provide. Reporting the
profile in protocol events lets clients keep their local state
synchronized without reinterpreting legacy sandbox fields.
## What changed
This adds `permission_profile` to `SessionConfigured` and propagates it
through core, exec JSON output, MCP server messages, and TUI
history/widget handling.
## Verification
- `cargo test -p codex-tui permissions -- --nocapture`
- `cargo test -p codex-core --test all permissions_messages --
--nocapture`
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/18282).
* #18288
* #18287
* #18286
* #18285
* #18284
* #18283
* __->__ #18282
## Summary
Support the existing hooks schema in inline TOML so hooks can be
configured from both `config.toml` and enterprise-managed
`requirements.toml` without requiring a separate `hooks.json` payload.
This gives enterprise admins a way to ship managed hook policy through
the existing requirements channel while still leaving script delivery to
MDM or other device-management tooling, and it keeps `hooks.json`
working unchanged for existing users.
This also lays the groundwork for follow-on managed filtering work such
as #15937, while continuing to respect project trust gating from #14718.
It does **not** implement `allow_managed_hooks_only` itself.
NOTE: yes, it's a bit unfortunate that the toml isn't formatted as
closely as normal to our default styling. This is because we're trying
to stay compatible with the spec for plugins/hooks that we'll need to
support & the main usecase here is embedding into requirements.toml
## What changed
- moved the shared hook serde model out of `codex-rs/hooks` into
`codex-rs/config` so the same schema can power `hooks.json`, inline
`config.toml` hooks, and managed `requirements.toml` hooks
- added `hooks` support to both `ConfigToml` and
`ConfigRequirementsToml`, including requirements-side `managed_dir` /
`windows_managed_dir`
- treated requirements-managed hooks as one constrained value via
`Constrained`, so managed hook policy is merged atomically and cannot
drift across requirement sources
- updated hook discovery to load requirements-managed hooks first, then
per-layer `hooks.json`, then per-layer inline TOML hooks, with a warning
when a single layer defines both representations
- threaded managed hook metadata through discovered handlers and exposed
requirements hooks in app-server responses, generated schemas, and
`/debug-config`
- added hook/config coverage in `codex-rs/config`, `codex-rs/hooks`,
`codex-rs/core/src/config_loader/tests.rs`, and
`codex-rs/core/tests/suite/hooks.rs`
## Testing
- `cargo test -p codex-config`
- `cargo test -p codex-hooks`
- `cargo test -p codex-app-server config_api`
## Documentation
Companion updates are needed in the developers website repo for:
- the hooks guide
- the config reference, sample, basic, and advanced pages
- the enterprise managed configuration guide
---------
Co-authored-by: Michael Bolin <mbolin@openai.com>
## Why
This regressed in #19063, which made `GuardianApproval` stable and
enabled by default. That adds an enabled `Auto-review` row to the
permissions popup, but `approvals_popup_navigation_skips_disabled` still
assumed the disabled `Full Access` row lived behind a hard-coded numeric
shortcut, so the test started selecting a different row and closing the
popup instead of verifying disabled-row behavior.
## What
- disable `GuardianApproval` in
`approvals_popup_navigation_skips_disabled` so the popup layout matches
the scenario the test is exercising
- choose the hidden numeric shortcut for the disabled `Full Access` row
by platform (`2` on non-Windows, `3` on Windows where `Read Only` is
shown) before asserting that selecting the disabled row leaves the popup
open
## Testing
- `cargo test -p codex-tui --lib
chatwidget::tests::permissions::approvals_popup_navigation_skips_disabled
-- --exact --nocapture`
- `cargo test -p codex-tui --lib chatwidget::tests::permissions --
--nocapture`
- `cargo test -p codex-tui`
## Summary
Allow the user to approve a request_permissions_tool request with the
condition that all commands in the rest of the turn are reviewed by
guardian, regardless of sandbox status.
## Testing
- [x] Added unit tests
- [x] Ran locally
## Why
While debugging the Windows stack overflows we saw in
[#13429](https://github.com/openai/codex/pull/13429) and then again in
[#18893](https://github.com/openai/codex/pull/18893), I hit another
overflow in
`tools::handlers::multi_agents::tests::tool_handlers_cascade_close_and_resume_and_keep_explicitly_closed_subtrees_closed`.
That test drives the legacy multi-agent spawn / close / resume path. The
behavior was fine, but several thin async wrappers were still inlining
much larger `AgentControl` futures into their callers, which was enough
to overflow the default Windows stack.
## What
- Box the thin `AgentControl` wrappers around `spawn_agent_internal`,
`resume_single_agent_from_rollout`, and `shutdown_agent_tree`.
- Box the corresponding legacy `multi_agents` handler calls in `spawn`,
`resume_agent`, and `close_agent`.
- Keep behavior unchanged while reducing future size on this call path
so the Windows test no longer overflows its stack.
## Testing
- `cargo test -p codex-core --lib
tools::handlers::multi_agents::tests::tool_handlers_cascade_close_and_resume_and_keep_explicitly_closed_subtrees_closed
-- --exact --nocapture`
- `cargo test -p codex-core` (this still hit unrelated local
integration-test failures because `codex.exe` / `test_stdio_server.exe`
were not present in this shell; the relevant unit tests passed)
### Why
The RMCP layer needs a Streamable HTTP client that can talk either
directly over `reqwest` or through the executor HTTP runner without
duplicating MCP session logic higher in the stack. This PR adds that
client-side transport boundary so remote Streamable HTTP MCP can reuse
the same RMCP flow as the local path.
### What
- Add a shared `rmcp-client/src/streamable_http/` module with:
- `transport_client.rs` for the local-or-remote transport enum
- `local_client.rs` for the direct `reqwest` implementation
- `remote_client.rs` for the executor-backed implementation
- `common.rs` for the small shared Streamable HTTP helpers
- Teach `RmcpClient` to build Streamable HTTP transports in either local
or remote mode while keeping the existing OAuth ownership in RMCP.
- Translate remote POST, GET, and DELETE session operations into
executor `http/request` calls.
- Preserve RMCP session expiry handling and reconnect behavior for the
remote transport.
- Add remote transport coverage in
`rmcp-client/tests/streamable_http_remote.rs` and keep the shared test
support in `rmcp-client/tests/streamable_http_test_support.rs`.
### Verification
- `cargo check -p codex-rmcp-client`
- online CI
### Stack
1. #18581 protocol
2. #18582 runner
3. #18583 RMCP client
4. #18584 manager wiring and local/remote coverage
---------
Co-authored-by: Codex <noreply@openai.com>
## Why
`approvals_reviewer` now uses `auto_review` as the canonical config/API
value after #18504, but the Rust enum variant and nearby helper/test
names still used `GuardianSubagent` / guardian approval wording. That
made follow-up code and reviews confusing even though the external value
had already moved to Auto-review.
## What changed
- Renamed `ApprovalsReviewer::GuardianSubagent` to
`ApprovalsReviewer::AutoReview`.
- Updated protocol, app-server, config, core, TUI, exec, and analytics
test callsites.
- Renamed nearby helper/test names from guardian approval wording to
Auto-review wording where they refer to the approvals reviewer mode.
- Preserved wire compatibility:
- `auto_review` remains the canonical serialized value.
- `guardian_subagent` remains accepted as a legacy alias.
This intentionally does not rename the `[features].guardian_approval`
key, `Feature::GuardianApproval`, `core/src/guardian`, analytics event
names, or app-server Guardian review event types.
## Verification
- `cargo test -p codex-protocol
approvals_reviewer_serializes_auto_review_and_accepts_legacy_guardian_subagent`
- `cargo test -p codex-app-server-protocol
approvals_reviewer_serializes_auto_review_and_accepts_legacy_guardian_subagent`
- `cargo test -p codex-config approvals_reviewer`
- `cargo test -p codex-tui update_feature_flags`
- `cargo test -p codex-core permissions_instructions`
- `cargo test -p codex-tui permissions_selection`
Fixes#16246.
## Why
`exec_command` already emits `PreToolUse`, but long-running unified exec
commands that finish on a later `write_stdin` poll could miss the
matching `PostToolUse`. That left the Bash hook lifecycle inconsistent,
broke expectations around `tool_use_id` and `tool_input.command`, and
meant `PostToolUse` block/replacement feedback could fail to replace the
final session output before it reached model context.
This keeps the fix scoped to the `exec_command` / `write_stdin`
lifecycle. Broader non-Bash hook expansion is still out of scope here
and remains tracked separately in #16732.
## What changed
- Compute and store `PostToolUsePayload` while handlers still have
access to their concrete output type, and carry `tool_use_id` through
that payload.
- Preserve the original hook-facing `exec_command` string through
unified exec state (`ExecCommandRequest`, `ProcessEntry`,
`PreparedProcessHandles`, and `ExecCommandToolOutput`) via
`hook_command`, and remove the now-unused `session_command` output
metadata.
- Emit exactly one Bash `PostToolUse` for long-running `exec_command`
sessions when a later `write_stdin` poll observes final completion,
using the original `exec_command` call id and hook-facing command.
- Keep one-shot `exec_command` behavior aligned with the same payload
construction, including interactive completions that return a final
result directly.
- Apply `PostToolUse` block/replacement feedback before the final
`write_stdin` completion output is sent back to the model.
- Keep `write_stdin` itself out of `PreToolUse` matching so it continues
to act as transport/polling for the original Bash tool call.
- Restore plain matcher behavior for tool-name matchers such as `Bash`
and `Edit|Write`, while still treating patterns with regex characters
(for example `mcp__.*`) as regexes.
- Add unit coverage for unified exec payload construction and parallel
session separation, plus a core integration regression that verifies a
blocked `PostToolUse` replaces the final `write_stdin` output in model
context.
## Testing
- `cargo test -p codex-hooks`
- `cargo test -p codex-core post_tool_use_payload`
- `cargo test -p codex-core
post_tool_use_blocks_when_exec_session_completes_via_write_stdin`
## Why
Resume and reconstruction need to preserve the permissions that were
active for each user turn. If rollouts only keep legacy sandbox fields,
replay cannot faithfully represent profile-shaped overrides introduced
earlier in the stack.
## What changed
This records `permission_profile` on user-turn rollout events,
reconstructs it through history/state extraction, and updates rollout
reconstruction and related fixtures to keep the field explicit.
## Verification
- `cargo test -p codex-core --test all permissions_messages --
--nocapture`
- `cargo test -p codex-core --test all request_permissions --
--nocapture`
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/18281).
* #18288
* #18287
* #18286
* #18285
* #18284
* #18283
* #18282
* __->__ #18281
## Why
After app-server can accept `PermissionProfile`, first-party clients
should stop preferring legacy sandbox fields when canonical permission
information is available. This keeps the migration moving without
removing legacy compatibility yet.
The client side still has mixed surfaces during the stack: embedded
thread start/resume/fork and exec initial turns can derive a profile
directly from local config, while TUI remote sessions and some
turn-start paths only have a legacy/server-context-safe sandbox
projection. Those paths keep sending legacy sandbox fields rather than
synthesizing or sending lossy/local-only profiles.
## What changed
- Sends `permissionProfile` from exec and embedded TUI thread
start/resume/fork requests when config has a representable profile.
- Keeps legacy sandbox fallback for external sandbox policies, TUI
remote thread lifecycle requests, and TUI turn-start requests that do
not yet carry the active profile.
- Sends the actual config-derived `permissionProfile` for exec initial
turns instead of rebuilding one from the legacy sandbox projection.
- Stores response `permissionProfile` as optional in TUI session state
so external sandbox responses and compatibility payloads preserve
`null`.
- Updates tests for request construction and response mapping.
## Verification
- `cargo check --tests -p codex-tui -p codex-exec`
- `cargo test -p codex-tui app_server_session -- --nocapture`
- `cargo test -p codex-exec thread_start_params -- --nocapture`
- `cargo test -p codex-tui
app_server_session::tests::thread_lifecycle_params -- --nocapture`
- `just fix -p codex-tui -p codex-exec`
- `just fix -p codex-tui`
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/18280).
* #18288
* #18287
* #18286
* #18285
* #18284
* #18283
* #18282
* #18281
* __->__ #18280
## Why
This is a cleanup PR for the `PermissionProfile` migration stack. #19016
fixed remote exec-server sandbox contexts so Docker-backed filesystem
requests use a request/container `cwd` instead of leaking the local test
runner `cwd`. That exposed the broader API problem:
`FileSystemSandboxContext::new(SandboxPolicy)` could still reconstruct
filesystem permissions by reading the exec-server process cwd with
`AbsolutePathBuf::current_dir()`.
That made `cwd`-dependent legacy entries, such as `:cwd`,
`:project_roots`, and relative deny globs, depend on ambient process
state instead of the request sandbox `cwd`. As later PRs make
`PermissionProfile` the primary permissions abstraction, sandbox
contexts should be explicit about whether they carry a request `cwd` or
are profile-only. Removing the implicit constructor prevents new call
sites from accidentally rebuilding permissions against the wrong `cwd`.
## What changed
- Removed `FileSystemSandboxContext::new(SandboxPolicy)`.
- Kept production callers on explicit constructors:
`from_legacy_sandbox_policy(..., cwd)`, `from_permission_profile(...)`,
and `from_permission_profile_with_cwd(...)`.
- Updated exec-server test helpers to construct `PermissionProfile`
values directly instead of routing through legacy `SandboxPolicy`
projections.
- Updated the environment regression test to use an explicit restricted
profile with no synthetic `cwd`.
## Verification
- `cargo test -p codex-exec-server`
- `just fix -p codex-exec-server`
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/19046).
* #18288
* #18287
* #18286
* #18285
* #18284
* #18283
* #18282
* #18281
* #18280
* __->__ #19046
### Why
Auto-review is the user-facing name for the approvals reviewer, but the
config/API value still exposed the old `guardian_subagent` name. That
made new configs and generated schemas point users at Guardian
terminology even though the intended product surface is Auto-review.
This PR updates the external `approvals_reviewer` value while preserving
compatibility for existing configs and clients.
### What changed
- Makes `auto_review` the canonical serialized value for
`approvals_reviewer`.
- Keeps `guardian_subagent` accepted as a legacy alias.
- Keeps `user` accepted and serialized as `user`.
- Updates generated config and app-server schemas so
`approvals_reviewer` includes:
- `user`
- `auto_review`
- `guardian_subagent`
- Updates app-server README docs for the reviewer value.
- Updates analytics and config requirements tests for the canonical
auto_review value.
### Compatibility
Existing configs and API payloads using:
```toml
approvals_reviewer = "guardian_subagent"
```
continue to load and map to the Auto-review reviewer behavior.
New serialization emits:
```toml
approvals_reviewer = "auto_review"
```
This PR intentionally does not rename the [features].guardian_approval
key or broad internal Guardian symbols. Those are split out for a
follow-up PR to keep this migration small and avoid touching large
TUI/internal surfaces.
**Verification**
cargo test -p codex-protocol
approvals_reviewer_serializes_auto_review_and_accepts_legacy_guardian_subagent
cargo test -p codex-app-server-protocol
approvals_reviewer_serializes_auto_review_and_accepts_legacy_guardian_subagent
## Summary
Sync the bundled `openai-docs` system skill with the already-merged
`openai/skills` update from https://github.com/openai/skills/pull/360.
Codex bundles system skills from `codex-rs/skills/src/assets/samples`,
so this PR copies the same GPT-5.4 OpenAI Docs skill update into the
Codex app/CLI bundle path.
## Changes
- Add the latest-model resolver script to the bundled `openai-docs`
skill.
- Route model upgrade and prompt-upgrade requests through remote
latest-model metadata when current guidance is needed.
- Rename bundled fallback references to `upgrade-guide.md` and
`prompting-guide.md`.
- Keep the bundled fallback guidance GPT-5.4-only.
## Validation
- Verified this bundled skill is byte-for-byte identical to
`openai/skills@origin/main` `skills/.system/openai-docs`.
- Ran the resolver locally and confirmed it returns `gpt-5.4` /
`gpt-5p4`.
## Summary
- register `in_app_browser` and `browser_use` as stable feature keys
- allow requirements/MDM feature requirements to pin those desktop
browser controls
- add coverage for browser requirements being accepted by config loading
## Testing
- `cargo fmt --all` (`just fmt` unavailable locally; rustfmt warned
about nightly-only `imports_granularity` config)
- `cargo test -p codex-features`
- `cargo test -p codex-core browser_feature_requirements_are_valid`
- Tested manually by setting in `requirements.toml` and seeing after app
restart state to reflect the setting was correct (at the time hiding the
`Browser Use` setting when the enterprise setting was set to false
## Summary
- Factor the state DB `ThreadMetadata` to rollout `ThreadItem` mapping
into a shared helper used by both DB pages and filesystem overlays
- Generalize filtered filesystem list overlays to fill missing thread
list metadata from the state-derived `ThreadItem`, while preserving
filesystem `path` and `thread_id`
- Add coverage for the merge behavior so existing filesystem values are
not overwritten and future `ThreadItem` fields require an explicit
decision
## Testing
- `just fmt` from `codex-rs`
- `git diff --check -- codex-rs/rollout/src/recorder.rs
codex-rs/rollout/src/recorder_tests.rs`
- Attempted `cargo test -p codex-rollout thread_item_metadata` from
`codex-rs`; blocked in dependency fetch/setup after updating crates.io
and git submodules `https://github.com/livekit/protocol` and
`https://chromium.googlesource.com/libyuv/libyuv`, so the focused tests
did not run
## Why
The post-merge `rust-ci-full` run for #18999 still failed the Ubuntu
remote `suite::remote_env` sandboxed filesystem tests. That run checked
out merge commit `ddde50c611e4800cb805f243ed3c50bbafe7d011`, so the arg0
guard lifetime fix was present.
The Docker-backed failure had two remaining pieces:
- The sandboxed filesystem helper needs to execute Codex through the
`codex-linux-sandbox` arg0 alias path. The helper sandbox was only
granting read access to the real Codex executable parent, so the alias
parent also has to be visible inside the helper sandbox.
- The remote-env tests were building sandbox contexts with
`FileSystemSandboxContext::new()`, which captures the local test runner
cwd. In the Docker remote exec-server, that host checkout path does not
exist, so spawning the filesystem helper failed with `No such file or
directory` before the helper could process the request.
## What Changed
- Track all helper runtime read roots instead of a single root.
- Add both the real Codex executable parent and the
`codex-linux-sandbox` alias parent to sandbox readable roots.
- Avoid sending an unused local cwd in remote filesystem sandbox
contexts when the permission profile has no cwd-dependent entries.
- Build the Docker remote-env test sandbox contexts with a cwd path that
exists inside the container.
- Add unit coverage for the alias-parent root and remote sandbox cwd
handling.
## Verification
- `cargo test -p codex-exec-server`
- `cargo test -p codex-core
remote_test_env_sandboxed_read_allows_readable_root`
- `just fix -p codex-exec-server`
- `just fix -p codex-core`
###### Why/Context/Summary
Repro: start a session outside Full Access, switch permissions to Full
Access, then submit a new turn that triggers MCP/CUA permission
handling.
The turn used the live Full Access `SessionConfiguration`, but the MCP
coordinator was still synced from the stale `original_config_do_not_use`
/ per-turn config copy. That left the coordinator with an old sandbox
policy, so empty MCP permission elicitations could be denied instead of
auto-accepted.
Fix: update/rebuild the MCP connection manager from the live
turn/session approval and sandbox policy fields.
###### Test plan
```sh
just fmt
cargo test -p codex-core --lib
cargo test -p codex-core --lib mcp_tool_call::tests
```
## Summary
Give guardian network-access reviews the command context that triggered
a managed-network approval. The prompt JSON now includes the originating
tool call id, tool name, command argv, cwd, sandbox permissions,
additional permissions, justification, and tty state when a single
active tool call can be attributed.
The implementation keeps the trigger shape canonical by serializing
`GuardianNetworkAccessTrigger` directly and lets each runtime build that
trigger from its `ToolCtx`. Non-guardian approval prompts avoid cloning
the full trigger payload.
## UX changes
Guardian network-access reviews now include a `trigger` object that
explains what command caused the network approval. Instead of seeing
only the requested host, the guardian reviewer can also see the
originating tool call, argv, working directory, sandbox mode,
justification, and tty state.
Example payload the guardian reviewer can see:
```json
{
"tool": "network_access",
"target": "https://api.github.com:443",
"host": "api.github.com",
"protocol": "https",
"port": 443,
"trigger": {
"callId": "call_abc123",
"toolName": "shell",
"command": ["gh", "api", "/repos/openai/codex/pulls/18197"],
"cwd": "/workspace/codex",
"sandboxPermissions": "require_escalated",
"justification": "Fetch PR metadata from GitHub.",
"tty": false
}
}
```
The network review itself remains scoped to the network decision:
`target_item_id` stays `null`. `trigger.callId` is attribution context
only, so clients can still distinguish network reviews from
item-targeted command reviews.
## Verification
- Added coverage for serializing network trigger context in guardian
approval JSON.
- Added regression coverage that network guardian reviews do not reuse
`trigger.callId` as `target_item_id`.
---------
Co-authored-by: Codex <noreply@openai.com>
### Why
Remote streamable HTTP MCP needs the executor to perform ordinary HTTP
requests on the executor side. This keeps network placement aligned with
`experimental_environment = "remote"` without adding MCP-specific
executor APIs.
### What
- Add an executor-side `http/request` runner backed by `reqwest`.
- Validate request method and URL scheme, preserving the transport
boundary at plain HTTP.
- Return buffered responses for ordinary calls and emit ordered
`http/request/bodyDelta` notifications for streaming responses.
- Register the request handler in the exec-server router.
- Document the runner entrypoint, conversion helpers, body-stream
bridge, notification sender, timeout behavior, and new integration-test
helpers.
- Add exec-server integration tests with the existing websocket harness
and a local TCP HTTP peer for buffered and streamed responses, with
comments spelling out what each test proves and its
setup/exercise/assert phases.
### Stack
1. #18581 protocol
2. #18582 runner
3. #18583 RMCP client
4. #18584 manager wiring and local/remote coverage
### Verification
- `just fmt`
- `cargo check -p codex-exec-server -p codex-rmcp-client --tests`
- `cargo check -p codex-core --test all` compile-only
- `git diff --check`
- Online full CI is running from the `full-ci` branch, including the
remote Rust test job.
Co-authored-by: Codex <noreply@openai.com>
---------
Co-authored-by: Codex <noreply@openai.com>
## Why
`PermissionProfile` is becoming the canonical permissions shape shared
by core and app-server. After app-server responses expose the active
profile, clients need to be able to send that same shape back when
starting, resuming, forking, or overriding a turn instead of translating
through the legacy `sandbox`/`sandboxPolicy` shorthands.
This still needs to preserve the existing requirements/platform
enforcement model. A profile-shaped request can be downgraded or
rejected by constraints, but the server should keep the user's
elevated-access intent for project trust decisions. Turn-level profile
overrides also need to retain existing read protections, including
deny-read entries and bounded glob-scan metadata, so a permission
override cannot accidentally drop configured protections such as
`**/*.env = deny`.
## What changed
- Adds optional `permissionProfile` request fields to `thread/start`,
`thread/resume`, `thread/fork`, and `turn/start`.
- Rejects ambiguous requests that specify both `permissionProfile` and
the legacy `sandbox`/`sandboxPolicy` fields, including running-thread
resume requests.
- Converts profile-shaped overrides into core runtime filesystem/network
permissions while continuing to derive the constrained legacy sandbox
projection used by existing execution paths.
- Preserves project-trust intent for profile overrides that are
equivalent to workspace-write or full-access sandbox requests.
- Preserves existing deny-read entries and `globScanMaxDepth` when
applying turn-level `permissionProfile` overrides.
- Updates app-server docs plus generated JSON/TypeScript schema fixtures
and regression coverage.
## Verification
- `cargo test -p codex-app-server-protocol schema_fixtures`
- `cargo test -p codex-core
session_configuration_apply_permission_profile_preserves_existing_deny_read_entries`
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/18279).
* #18288
* #18287
* #18286
* #18285
* #18284
* #18283
* #18282
* #18281
* #18280
* __->__ #18279
## Summary
Short circuit the convo if auto-review hits too many denials
## Testing
- [x] Added unit tests
---------
Co-authored-by: Codex <noreply@openai.com>
Preserve skill name/path entries whenever possible and trim descriptions
first, using round-robin character allocation so short descriptions do
not waste budget.
## Why
The Ubuntu GNU remote Cargo run has been regularly failing sandboxed
`suite::remote_env` filesystem tests with `No such file or directory`,
while the same cases pass under Bazel. The Cargo remote-env setup starts
`target/debug/codex exec-server` inside Docker via
`scripts/test-remote-env.sh`. That CLI builds `codex-linux-sandbox` and
other arg0 helper aliases in a temporary directory, then passes those
alias paths into the exec-server runtime.
`arg0_dispatch_or_else` constructed `Arg0DispatchPaths` from that
temporary alias guard, but then awaited the async CLI entry point
without otherwise keeping the guard live. That allowed the guard to be
dropped while the exec-server was still running, removing the helper
alias directory. Later sandboxed filesystem calls tried to spawn the
now-deleted `codex-linux-sandbox` path and surfaced as `ENOENT`.
The relevant distinction I found is that `core/tests/common` stores the
result of `arg0_dispatch()` in a process-lifetime
`OnceLock<Option<Arg0PathEntryGuard>>` for test binaries. The Cargo
remote-env setup exercises a real `codex exec-server` process instead,
so it depends on the normal CLI lifetime behavior fixed here.
## What Changed
- Keep the arg0 tempdir guard alive until `main_fn(paths).await`
completes.
- Keep the helper on the real `arg0_dispatch()` shape, where alias setup
can fail and return `None` in production.
- Add a regression test that uses an explicit guard, yields once, and
verifies the generated helper alias path still exists while the async
entry point is running.
## Verification
- `cargo test -p codex-arg0`
- `just argument-comment-lint -p codex-arg0`
- `just fix -p codex-arg0`
## Summary
This adds the structural plumbing needed for an app-server client to
approve a previously denied Guardian review and carry that approval
context into the next model turn.
This PR does not add the actual `/auto-review-denials` tool
## What Changed
- Added app-server v2 RPC `thread/approveGuardianDeniedAction`.
- Added generated JSON schema and TypeScript fixtures for
`ThreadApproveGuardianDeniedAction*`.
- Added core `Op::ApproveGuardianDeniedAction`.
- Added a core handler that validates the event is a denied Guardian
assessment and injects a developer message containing the stored denial
event JSON.
- Queues the approval context for the next turn if there is no active
turn yet.
- Added the TUI app-server bridge so `Op::ApproveGuardianDeniedAction {
event }` is routed to the app-server request.
## What This Does Not Do
- Does not add `/auto-review-denials`.
- Does not add chat widget recent-denial state.
- Does not add popup/list UI.
- Does not add a product-facing denial lookup/store.
- Does not change where Guardian denials are originally emitted or
persisted.
## Verification
- `cargo test -p codex-tui thread_approve_guardian_denied_action`
## Summary
Wires rollout trace recording into `codex-core` session and turn
execution. This records the core model request/response, compaction, and
session lifecycle boundaries needed for replay without yet tracing every
nested runtime/tool boundary.
## Stack
This is PR 2/5 in the rollout trace stack.
- [#18876](https://github.com/openai/codex/pull/18876): Add rollout
trace crate
- [#18877](https://github.com/openai/codex/pull/18877): Record core
session rollout traces
- [#18878](https://github.com/openai/codex/pull/18878): Trace tool and
code-mode boundaries
- [#18879](https://github.com/openai/codex/pull/18879): Trace sessions
and multi-agent edges
- [#18880](https://github.com/openai/codex/pull/18880): Add debug trace
reduction command
## Review Notes
This layer is the first live integration point. The important review
question is whether trace recording is isolated from normal session
behavior: trace failures should not become user-visible execution
failures, and recording should preserve the existing turn/session
lifecycle semantics.
The PR depends on the reducer/data model from the first stack entry and
only introduces the core recorder surface that later PRs use for richer
runtime and relationship events.
Addresses #18860
Problem: Remote app-server clients could stop draining websocket events
when their bounded local event channel filled, leaving clients stuck on
stale in-progress turns after a disconnect.
Solution: Use an unbounded local event channel for the remote client so
the websocket reader can keep forwarding disconnect and progress events
instead of blocking or dropping them.
Why this is reasonable: This does not make the remote websocket itself
unbounded. The changed queue lives inside the remote client, between the
task that reads the remote websocket and the API consumer in the same
client process. Once an event has been received from the remote server,
preserving it is preferable to blocking websocket reads or dropping
disconnect/lifecycle events; network-level backpressure still happens at
the websocket boundary if the remote side outpaces the client.
## Summary
This updates the embedded `imagegen` system skill in `codex-rs/skills`
with the ImageGen 2 skill changes from `openai/skills-internal#87`.
The bundled skill now keeps normal image generation/editing on the
built-in `image_gen` path, updates the CLI fallback defaults to
`gpt-image-2`, and routes explicit transparent-output requests through
`gpt-image-1.5` with clear guidance that `gpt-image-2` does not support
transparent backgrounds.
## Details
- Update `SKILL.md` routing guidance for built-in vs CLI fallback
behavior.
- Update CLI/API references for `gpt-image-2` size constraints, quality
options, near-4K sizes, and unsupported options.
- Update `scripts/image_gen.py` defaults and validation:
- default model `gpt-image-2`
- default size `auto`
- default quality `medium`
- reject transparent backgrounds on `gpt-image-2`
- reject `input_fidelity` on `gpt-image-2`
- validate flexible `gpt-image-2` sizes and suggest `3824x2160` /
`2160x3824` for near-4K requests
- Update prompt/reference docs with the new model and routing guidance.
## Validation
- `cargo test -p codex-skills`
- `git diff --check`
- Manual CLI dry-runs for:
- default `gpt-image-2` payload
- `3824x2160` near-4K size acceptance
- `3840x2160` rejection with near-4K guidance
- transparent background rejection on `gpt-image-2`
- transparent background acceptance on `gpt-image-1.5`
- `input_fidelity` rejection on `gpt-image-2`
Bazel target check was not run locally because `bazel` is not installed
in this environment.
## Why
`wait_agent` can be called while mailbox mail is already pending. The
previous implementation subscribed for future mailbox sequence changes
and then waited for the next notification. If the mail was queued before
that wait started, no new notification arrived, so the tool could sit
until `timeout_ms` even though mail was ready to deliver.
## What Changed
- Added `Session::has_pending_mailbox_items()` for checking pending
mailbox mail through the session API.
- Updated `multi_agents_v2::wait` to return immediately when pending
mailbox mail already exists before sleeping on a new mailbox sequence
update.
- Reworked the regression coverage in `multi_agents_tests.rs` so already
queued mailbox mail must wake `wait_agent` promptly.
Relevant code:
- [`wait_agent` pending-mail
check](aa8ca06e83/codex-rs/core/src/tools/handlers/multi_agents_v2/wait.rs (L55-L60))
-
[`Session::has_pending_mailbox_items`](aa8ca06e83/codex-rs/core/src/session/mod.rs (L2979-L2981))
-
[`multi_agent_v2_wait_agent_returns_for_already_queued_mail`](aa8ca06e83/codex-rs/core/src/tools/handlers/multi_agents_tests.rs (L2854))
## Verification
- `cargo test -p codex-core
multi_agent_v2_wait_agent_returns_for_already_queued_mail`
## Summary
- Teach app-server `thread/list` to accept either a single `cwd` or an
array of cwd filters, returning threads whose recorded session cwd
matches any requested path
- Add `useStateDbOnly` as an explicit opt-in fast path for callers that
want to answer `thread/list` from SQLite without scanning JSONL rollout
files
- Preserve backwards compatibility: by default, `thread/list` still
scans JSONL rollouts and repairs SQLite state
- Wire the new cwd array and SQLite-only options through app-server,
local/remote thread-store, rollout listing, generated TypeScript/schema
fixtures, proto output, and docs
## Test Plan
- `cargo test -p codex-app-server-protocol`
- `cargo test -p codex-rollout`
- `cargo test -p codex-thread-store`
- `cargo test -p codex-app-server thread_list`
- `just fmt`
- `just fix -p codex-app-server-protocol -p codex-rollout -p
codex-thread-store -p codex-app-server`
- `cargo build -p codex-cli --bin codex`
## Why
Guardian analytics includes time-to-first-token, but the Guardian
reviewer runs as a normal Codex session and `TurnCompleteEvent` did not
expose TTFT. The timing needs to flow through the standard
turn-completion protocol so Guardian review analytics can consume the
same value as the rest of the session machinery.
## What changed
Adds optional `time_to_first_token_ms` to `TurnCompleteEvent` and
populates it from `TurnTiming`. The value is carried through app-server
thread history, rollout reconstruction, TUI/app-server adapters, and
Guardian review session handling.
Guardian review analytics now captures TTFT from the reviewer
turn-complete event when available. Existing tests and fixtures are
updated to set the new optional field to `None` where TTFT is not
relevant.
## Verification
- `cargo clippy -p codex-tui --tests -- -D warnings`
- `cargo clippy -p codex-core --lib --tests -- -D warnings`
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/17696).
* __->__ #17696
* #17695
* #17693
* #18278
* #18953
## Why
The Guardian review event needs to report whether the action shown to
Guardian was truncated. That field should come from the same truncation
path used to build the Guardian prompt, rather than being inferred after
the fact.
## What changed
Plumbs truncation metadata through Guardian action formatting, prompt
construction, review session execution, and analytics emission.
`guardian_truncate_text` now reports both the rendered text and whether
it inserted the truncation marker, and `reviewed_action_truncated` is
set from that prompt-building result.
This keeps the analytics field aligned with the model-visible reviewed
action while preserving the existing Guardian prompt behavior.
## Verification
- Guardian truncation tests cover both truncated and non-truncated
action payloads.
- Guardian review tests assert the review session metadata and
truncation field are propagated.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/17695).
* #17696
* __->__ #17695
* #17693
* #18278
* #18953
## Why
Guardian approvals now run as review sessions, but Codex analytics did
not have a terminal event for those reviews. That made it hard to
measure approval outcomes, failure modes, Guardian session reuse, model
metadata, token usage, and timing separately from the parent turn.
## What changed
Adds `codex_guardian_review` analytics emission for Guardian approval
reviews. The event is emitted from the Guardian review path with review
identity, target item id, approval request source, a PII-minimized
reviewed-action shape, terminal decision/status, failure reason,
Guardian assessment fields, Guardian session metadata, token usage, and
timing metadata.
The reviewed-action payload intentionally omits high-risk fields such as
shell commands, working directories, argv, file paths, network
targets/hosts, rationale, retry reason, and permission justifications.
It also classifies prompt-build failures separately from Guardian
session/runtime failures so fail-closed cases are distinguishable in
analytics.
## Verification
- Guardian review analytics tests cover terminal success,
timeout/cancel/fail-closed paths, session metadata, and token usage
plumbing.
- `cargo clippy -p codex-core --lib --tests -- -D warnings`
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/17693).
* #17696
* #17695
* __->__ #17693
