[5/8] Rename Python SDK package to openai-codex (#21905)

## Why

The SDK should publish under the reserved public distribution name
`openai-codex`, and its import module should match that name in the
Python style. Since package names can contain hyphens but import modules
cannot, the public import path becomes `openai_codex`.

Keeping the rename separate from the public API surface change makes the
naming change easy to review and avoids mixing it with API curation.

## What

- Rename the SDK distribution from `openai-codex-app-server-sdk` to
`openai-codex`.
- Rename the import package from `codex_app_server` to `openai_codex`.
- Keep the runtime wheel as the separate `openai-codex-cli-bin`
dependency.
- Update docs, examples, notebooks, artifact scripts, lockfile metadata,
and tests for the new distribution/module names.

## Stack

1. #21891 `[1/8]` Pin Python SDK runtime dependency
2. #21893 `[2/8]` Generate Python SDK types from pinned runtime
3. #21895 `[3/8]` Run Python SDK tests in CI
4. #21896 `[4/8]` Define Python SDK public API surface
5. This PR `[5/8]` Rename Python SDK package to `openai-codex`
6. #21910 `[6/8]` Add high-level Python SDK approval mode
7. #22014 `[7/8]` Add Python SDK app-server integration harness
8. #22021 `[8/8]` Add Python SDK Ruff formatting

## Verification

- Updated package metadata and public API tests to assert the
distribution and import names.

Co-authored-by: Codex <noreply@openai.com>

sdk/python-runtime/README.md

@@ -1,6 +1,6 @@
 # Codex CLI Runtime for Python SDK
 
-Platform-specific runtime package consumed by the published `openai-codex-app-server-sdk`.
+Platform-specific runtime package consumed by the published `openai-codex`.
 
 This package is staged during release so the SDK can pin an exact Codex CLI
 version without checking platform binaries into the repo.

sdk/python/README.md

@@ -1,4 +1,4 @@
-# Codex App Server Python SDK (Experimental)
+# OpenAI Codex Python SDK (Experimental)
 
 Experimental Python SDK for `codex app-server` JSON-RPC v2 over stdio, with a small default surface optimized for real scripts and apps.
 
@@ -6,7 +6,7 @@ The generated wire-model layer is sourced from the pinned `openai-codex-cli-bin`
 runtime package and exposed as Pydantic models with snake_case Python fields
 that serialize back to the app-server’s camelCase wire format.
 The package root exports the ergonomic client API; public app-server value and
-event types live in `codex_app_server.types`.
+event types live in `openai_codex.types`.
 
 ## Install
 
@@ -25,7 +25,7 @@ automatically.
 ## Quickstart
 
 ```python
-from codex_app_server import Codex
+from openai_codex import Codex
 
 with Codex() as codex:
     thread = codex.thread_start(model="gpt-5")
@@ -76,7 +76,7 @@ uv sync
 python scripts/update_sdk_artifacts.py generate-types
 python scripts/update_sdk_artifacts.py \
   stage-sdk \
-  /tmp/codex-python-release/openai-codex-app-server-sdk \
+  /tmp/codex-python-release/openai-codex \
   --codex-version <codex-release-tag-or-pep440-version>
 python scripts/update_sdk_artifacts.py \
   stage-runtime \
@@ -94,13 +94,13 @@ matrix is `macosx_11_0_arm64`, `macosx_10_9_x86_64`,
 This supports the CI release flow:
 
 - run `generate-types` before packaging
-- stage `openai-codex-app-server-sdk` once with an exact `openai-codex-cli-bin==...` dependency
+- stage `openai-codex` once with an exact `openai-codex-cli-bin==...` dependency
 - stage `openai-codex-cli-bin` on each supported platform runner with the same pinned runtime version
 - build and publish `openai-codex-cli-bin` as platform wheels only through PyPI trusted publishing; do not publish an sdist
 
 ## Compatibility and versioning
 
-- Package: `openai-codex-app-server-sdk`
+- Package: `openai-codex`
 - Runtime package: `openai-codex-cli-bin`
 - Python: `>=3.10`
 - Target protocol: Codex `app-server` JSON-RPC v2

sdk/python/_runtime_setup.py

@@ -18,7 +18,7 @@ import zipfile
 from pathlib import Path
 
 PACKAGE_NAME = "openai-codex-cli-bin"
-SDK_PACKAGE_NAME = "openai-codex-app-server-sdk"
+SDK_PACKAGE_NAME = "openai-codex"
 REPO_SLUG = "openai/codex"
 
 

sdk/python/docs/api-reference.md

@@ -1,13 +1,13 @@
-# Codex App Server SDK — API Reference
+# OpenAI Codex SDK — API Reference
 
-Public surface of `codex_app_server` for app-server v2.
+Public surface of `openai_codex` for app-server v2.
 
 This SDK surface is experimental. Turn streams are routed by turn ID so one client can consume multiple active turns concurrently.
 
 ## Package Entry
 
 ```python
-from codex_app_server import (
+from openai_codex import (
     Codex,
     AsyncCodex,
     RunResult,
@@ -23,7 +23,7 @@ from codex_app_server import (
     SkillInput,
     MentionInput,
 )
-from codex_app_server.types import (
+from openai_codex.types import (
     InitializeResponse,
     ThreadItem,
     ThreadTokenUsage,
@@ -31,9 +31,9 @@ from codex_app_server.types import (
 )
 ```
 
-- Version: `codex_app_server.__version__`
+- Version: `openai_codex.__version__`
 - Requires Python >= 3.10
-- Public app-server value and event types live in `codex_app_server.types`
+- Public app-server value and event types live in `openai_codex.types`
 
 ## Codex (sync)
 
@@ -136,7 +136,7 @@ Use `turn(...)` when you need low-level turn control (`stream()`, `steer()`,
 - `steer(input: Input) -> TurnSteerResponse`
 - `interrupt() -> TurnInterruptResponse`
 - `stream() -> Iterator[Notification]`
-- `run() -> codex_app_server.types.Turn`
+- `run() -> openai_codex.types.Turn`
 
 Behavior notes:
 
@@ -148,7 +148,7 @@ Behavior notes:
 - `steer(input: Input) -> Awaitable[TurnSteerResponse]`
 - `interrupt() -> Awaitable[TurnInterruptResponse]`
 - `stream() -> AsyncIterator[Notification]`
-- `run() -> Awaitable[codex_app_server.types.Turn]`
+- `run() -> Awaitable[openai_codex.types.Turn]`
 
 Behavior notes:
 
@@ -173,7 +173,7 @@ Input = list[InputItem] | InputItem
 The SDK wrappers return and accept public app-server models wherever possible:
 
 ```python
-from codex_app_server.types import (
+from openai_codex.types import (
     AskForApproval,
     ThreadReadResponse,
     Turn,
@@ -184,7 +184,7 @@ from codex_app_server.types import (
 ## Retry + errors
 
 ```python
-from codex_app_server import (
+from openai_codex import (
     retry_on_overload,
     JsonRpcError,
     MethodNotFoundError,
@@ -200,7 +200,7 @@ from codex_app_server import (
 ## Example
 
 ```python
-from codex_app_server import Codex
+from openai_codex import Codex
 
 with Codex() as codex:
     thread = codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})

sdk/python/docs/faq.md

@@ -8,7 +8,7 @@
 
 ## `run()` vs `stream()`
 
-- `TurnHandle.run()` / `AsyncTurnHandle.run()` is the easiest path. It consumes events until completion and returns the public app-server `Turn` model from `codex_app_server.types`.
+- `TurnHandle.run()` / `AsyncTurnHandle.run()` is the easiest path. It consumes events until completion and returns the public app-server `Turn` model from `openai_codex.types`.
 - `TurnHandle.stream()` / `AsyncTurnHandle.stream()` yields raw notifications (`Notification`) so you can react event-by-event.
 
 Choose `run()` for most apps. Choose `stream()` for progress UIs, custom timeout logic, or custom parsing.
@@ -68,7 +68,7 @@ cd sdk/python
 python scripts/update_sdk_artifacts.py generate-types
 python scripts/update_sdk_artifacts.py \
   stage-sdk \
-  /tmp/codex-python-release/openai-codex-app-server-sdk \
+  /tmp/codex-python-release/openai-codex \
   --codex-version <codex-release-tag-or-pep440-version>
 python scripts/update_sdk_artifacts.py \
   stage-runtime \

sdk/python/docs/getting-started.md

@@ -24,7 +24,7 @@ Requirements:
 ## 2) Run your first turn (sync)
 
 ```python
-from codex_app_server import Codex
+from openai_codex import Codex
 
 with Codex() as codex:
     server = codex.metadata.serverInfo
@@ -50,7 +50,7 @@ What happened:
 ## 3) Continue the same thread (multi-turn)
 
 ```python
-from codex_app_server import Codex
+from openai_codex import Codex
 
 with Codex() as codex:
     thread = codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})
@@ -69,7 +69,7 @@ initializes lazily, and context entry makes startup/shutdown explicit.
 
 ```python
 import asyncio
-from codex_app_server import AsyncCodex
+from openai_codex import AsyncCodex
 
 
 async def main() -> None:
@@ -85,7 +85,7 @@ asyncio.run(main())
 ## 5) Resume an existing thread
 
 ```python
-from codex_app_server import Codex
+from openai_codex import Codex
 
 THREAD_ID = "thr_123"  # replace with a real id
 
@@ -101,7 +101,7 @@ The convenience wrappers live at the package root. Public app-server value and
 event types live under:
 
 ```python
-from codex_app_server.types import ThreadReadResponse, Turn, TurnStatus
+from openai_codex.types import ThreadReadResponse, Turn, TurnStatus
 ```
 
 ## 7) Next stops

sdk/python/examples/01_quickstart_constructor/async.py

@@ -15,7 +15,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex
+from openai_codex import AsyncCodex
 
 
 async def main() -> None:

sdk/python/examples/01_quickstart_constructor/sync.py

@@ -13,7 +13,7 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex
+from openai_codex import Codex
 
 with Codex(config=runtime_config()) as codex:
     print("Server:", server_label(codex.metadata))

sdk/python/examples/02_turn_run/async.py

@@ -16,7 +16,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex, TextInput
+from openai_codex import AsyncCodex, TextInput
 
 
 async def main() -> None:

sdk/python/examples/02_turn_run/sync.py

@@ -14,7 +14,7 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex, TextInput
+from openai_codex import Codex, TextInput
 
 with Codex(config=runtime_config()) as codex:
     thread = codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})

sdk/python/examples/03_turn_stream_events/async.py

@@ -16,7 +16,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex, TextInput
+from openai_codex import AsyncCodex, TextInput
 
 
 async def main() -> None:

sdk/python/examples/03_turn_stream_events/sync.py

@@ -14,7 +14,7 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex, TextInput
+from openai_codex import Codex, TextInput
 
 with Codex(config=runtime_config()) as codex:
     thread = codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})

sdk/python/examples/04_models_and_metadata/async.py

@@ -11,7 +11,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex
+from openai_codex import AsyncCodex
 
 
 async def main() -> None:

sdk/python/examples/04_models_and_metadata/sync.py

@@ -9,7 +9,7 @@ from _bootstrap import ensure_local_sdk_src, runtime_config, server_label
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex
+from openai_codex import Codex
 
 with Codex(config=runtime_config()) as codex:
     print("server:", server_label(codex.metadata))

sdk/python/examples/05_existing_thread/async.py

@@ -11,7 +11,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex, TextInput
+from openai_codex import AsyncCodex, TextInput
 
 
 async def main() -> None:

sdk/python/examples/05_existing_thread/sync.py

@@ -9,7 +9,7 @@ from _bootstrap import assistant_text_from_turn, ensure_local_sdk_src, find_turn
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex, TextInput
+from openai_codex import Codex, TextInput
 
 with Codex(config=runtime_config()) as codex:
     # Create an initial thread and turn so we have a real thread to resume.

sdk/python/examples/06_thread_lifecycle_and_controls/async.py

@@ -11,7 +11,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex, TextInput
+from openai_codex import AsyncCodex, TextInput
 
 
 async def main() -> None:

sdk/python/examples/06_thread_lifecycle_and_controls/sync.py

@@ -9,7 +9,7 @@ from _bootstrap import ensure_local_sdk_src, runtime_config
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex, TextInput
+from openai_codex import Codex, TextInput
 
 
 with Codex(config=runtime_config()) as codex:

sdk/python/examples/07_image_and_text/async.py

@@ -16,7 +16,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex, ImageInput, TextInput
+from openai_codex import AsyncCodex, ImageInput, TextInput
 
 REMOTE_IMAGE_URL = "https://raw.githubusercontent.com/github/explore/main/topics/python/python.png"
 

sdk/python/examples/07_image_and_text/sync.py

@@ -14,7 +14,7 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex, ImageInput, TextInput
+from openai_codex import Codex, ImageInput, TextInput
 
 REMOTE_IMAGE_URL = "https://raw.githubusercontent.com/github/explore/main/topics/python/python.png"
 

sdk/python/examples/08_local_image_and_text/async.py

@@ -17,7 +17,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex, LocalImageInput, TextInput
+from openai_codex import AsyncCodex, LocalImageInput, TextInput
 
 
 async def main() -> None:

sdk/python/examples/08_local_image_and_text/sync.py

@@ -15,7 +15,7 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex, LocalImageInput, TextInput
+from openai_codex import Codex, LocalImageInput, TextInput
 
 with temporary_sample_image_path() as image_path:
     with Codex(config=runtime_config()) as codex:

sdk/python/examples/09_async_parity/sync.py

@@ -15,7 +15,7 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex, TextInput
+from openai_codex import Codex, TextInput
 
 with Codex(config=runtime_config()) as codex:
     print("Server:", server_label(codex.metadata))

sdk/python/examples/10_error_handling_and_retry/async.py

@@ -19,14 +19,14 @@ import random
 from collections.abc import Awaitable, Callable
 from typing import TypeVar
 
-from codex_app_server import (
+from openai_codex import (
     AsyncCodex,
     JsonRpcError,
     ServerBusyError,
     TextInput,
     is_retryable_error,
 )
-from codex_app_server.types import TurnStatus
+from openai_codex.types import TurnStatus
 
 ResultT = TypeVar("ResultT")
 

sdk/python/examples/10_error_handling_and_retry/sync.py

@@ -14,14 +14,14 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import (
+from openai_codex import (
     Codex,
     JsonRpcError,
     ServerBusyError,
     TextInput,
     retry_on_overload,
 )
-from codex_app_server.types import TurnStatus
+from openai_codex.types import TurnStatus
 
 with Codex(config=runtime_config()) as codex:
     thread = codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})

sdk/python/examples/11_cli_mini_app/async.py

@@ -11,11 +11,11 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import (
+from openai_codex import (
     AsyncCodex,
     TextInput,
 )
-from codex_app_server.types import (
+from openai_codex.types import (
     ThreadTokenUsageUpdatedNotification,
     TurnCompletedNotification,
 )

sdk/python/examples/11_cli_mini_app/sync.py

@@ -9,11 +9,11 @@ from _bootstrap import ensure_local_sdk_src, runtime_config
 
 ensure_local_sdk_src()
 
-from codex_app_server import (
+from openai_codex import (
     Codex,
     TextInput,
 )
-from codex_app_server.types import (
+from openai_codex.types import (
     ThreadTokenUsageUpdatedNotification,
     TurnCompletedNotification,
 )

sdk/python/examples/12_turn_params_kitchen_sink/async.py

@@ -17,11 +17,11 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import (
+from openai_codex import (
     AsyncCodex,
     TextInput,
 )
-from codex_app_server.types import (
+from openai_codex.types import (
     AskForApproval,
     Personality,
     ReasoningSummary,

sdk/python/examples/12_turn_params_kitchen_sink/sync.py

@@ -15,11 +15,11 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import (
+from openai_codex import (
     Codex,
     TextInput,
 )
-from codex_app_server.types import (
+from openai_codex.types import (
     AskForApproval,
     Personality,
     ReasoningSummary,

sdk/python/examples/13_model_select_and_turn_params/async.py

@@ -11,11 +11,11 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import (
+from openai_codex import (
     AsyncCodex,
     TextInput,
 )
-from codex_app_server.types import (
+from openai_codex.types import (
     AskForApproval,
     Personality,
     ReasoningEffort,

sdk/python/examples/13_model_select_and_turn_params/sync.py

@@ -9,11 +9,11 @@ from _bootstrap import assistant_text_from_turn, ensure_local_sdk_src, find_turn
 
 ensure_local_sdk_src()
 
-from codex_app_server import (
+from openai_codex import (
     Codex,
     TextInput,
 )
-from codex_app_server.types import (
+from openai_codex.types import (
     AskForApproval,
     Personality,
     ReasoningEffort,

sdk/python/examples/14_turn_controls/async.py

@@ -15,7 +15,7 @@ ensure_local_sdk_src()
 
 import asyncio
 
-from codex_app_server import AsyncCodex, TextInput
+from openai_codex import AsyncCodex, TextInput
 
 
 async def main() -> None:

sdk/python/examples/14_turn_controls/sync.py

@@ -13,7 +13,7 @@ from _bootstrap import (
 
 ensure_local_sdk_src()
 
-from codex_app_server import Codex, TextInput
+from openai_codex import Codex, TextInput
 
 with Codex(config=runtime_config()) as codex:
     thread = codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})

sdk/python/examples/README.md

@@ -5,8 +5,8 @@ Each example folder contains runnable versions:
 - `sync.py` (public sync surface: `Codex`)
 - `async.py` (public async surface: `AsyncCodex`)
 
-All examples intentionally use only public SDK exports from `codex_app_server`
-and `codex_app_server.types`.
+All examples intentionally use only public SDK exports from `openai_codex`
+and `openai_codex.types`.
 
 ## Prerequisites
 

sdk/python/examples/_bootstrap.py

@@ -35,7 +35,7 @@ def ensure_local_sdk_src() -> Path:
     """Add sdk/python/src to sys.path so examples run without installing the package."""
     sdk_python_dir = _SDK_PYTHON_DIR
     src_dir = sdk_python_dir / "src"
-    package_dir = src_dir / "codex_app_server"
+    package_dir = src_dir / "openai_codex"
     if not package_dir.exists():
         raise RuntimeError(f"Could not locate local SDK package at {package_dir}")
 
@@ -49,7 +49,7 @@ def ensure_local_sdk_src() -> Path:
 
 def runtime_config():
     """Return an example-friendly AppServerConfig for repo-source SDK usage."""
-    from codex_app_server import AppServerConfig
+    from openai_codex import AppServerConfig
 
     ensure_runtime_package_installed(sys.executable, _SDK_PYTHON_DIR)
     return AppServerConfig()

sdk/python/notebooks/sdk_walkthrough.ipynb

@@ -6,7 +6,7 @@
    "source": [
     "# Codex Python SDK Walkthrough\n",
     "\n",
-    "Public SDK surface only (`codex_app_server` root exports)."
+    "Public SDK surface only (`openai_codex` root exports)."
    ]
   },
   {
@@ -32,7 +32,7 @@
     "\n",
     "\n",
     "def _is_sdk_python_dir(path: Path) -> bool:\n",
-    "    return (path / 'pyproject.toml').exists() and (path / 'src' / 'codex_app_server').exists()\n",
+    "    return (path / 'pyproject.toml').exists() and (path / 'src' / 'openai_codex').exists()\n",
     "\n",
     "\n",
     "def _iter_home_fallback_candidates(home: Path):\n",
@@ -114,7 +114,7 @@
     "\n",
     "# Force fresh imports after SDK upgrades in the same notebook kernel.\n",
     "for module_name in list(sys.modules):\n",
-    "    if module_name == 'codex_app_server' or module_name.startswith('codex_app_server.'):\n",
+    "    if module_name == 'openai_codex' or module_name.startswith('openai_codex.'):\n",
     "        sys.modules.pop(module_name, None)\n",
     "\n",
     "print('Kernel:', sys.executable)\n",
@@ -130,7 +130,7 @@
    "source": [
     "# Cell 2: imports (public only)\n",
     "from _bootstrap import assistant_text_from_turn, find_turn_by_id, server_label\n",
-    "from codex_app_server import (\n",
+    "from openai_codex import (\n",
     "    AsyncCodex,\n",
     "    Codex,\n",
     "    ImageInput,\n",
@@ -245,7 +245,7 @@
    "source": [
     "# Cell 5b: one turn with most optional turn params\n",
     "from pathlib import Path\n",
-    "from codex_app_server import (\n",
+    "from openai_codex import (\n",
     "    AskForApproval,\n",
     "    Personality,\n",
     "    ReasoningEffort,\n",
@@ -295,7 +295,7 @@
    "source": [
     "# Cell 5c: choose highest model + highest supported reasoning, then run turns\n",
     "from pathlib import Path\n",
-    "from codex_app_server import (\n",
+    "from openai_codex import (\n",
     "    AskForApproval,\n",
     "    Personality,\n",
     "    ReasoningEffort,\n",

sdk/python/pyproject.toml

@@ -3,13 +3,13 @@ requires = ["hatchling>=1.24.0"]
 build-backend = "hatchling.build"
 
 [project]
-name = "openai-codex-app-server-sdk"
+name = "openai-codex"
 version = "0.131.0a4"
 description = "Python SDK for Codex app-server v2"
 readme = "README.md"
 requires-python = ">=3.10"
 license = { text = "Apache-2.0" }
-authors = [{ name = "OpenClaw Assistant" }]
+authors = [{ name = "OpenAI" }]
 keywords = ["codex", "json-rpc", "sdk", "llm", "app-server"]
 classifiers = [
   "Development Status :: 4 - Beta",
@@ -42,14 +42,14 @@ exclude = [
 ]
 
 [tool.hatch.build.targets.wheel]
-packages = ["src/codex_app_server"]
+packages = ["src/openai_codex"]
 include = [
-  "src/codex_app_server/py.typed",
+  "src/openai_codex/py.typed",
 ]
 
 [tool.hatch.build.targets.sdist]
 include = [
-  "src/codex_app_server/**",
+  "src/openai_codex/**",
   "README.md",
   "CHANGELOG.md",
   "CONTRIBUTING.md",

sdk/python/scripts/update_sdk_artifacts.py

@@ -18,7 +18,7 @@ from dataclasses import dataclass
 from pathlib import Path
 from typing import Any, Callable, Sequence, get_args, get_origin
 
-SDK_DISTRIBUTION_NAME = "openai-codex-app-server-sdk"
+SDK_DISTRIBUTION_NAME = "openai-codex"
 RUNTIME_DISTRIBUTION_NAME = "openai-codex-cli-bin"
 
 
@@ -250,7 +250,7 @@ def _rewrite_sdk_runtime_dependency(pyproject_text: str, runtime_version: str) -
 def stage_python_sdk_package(staging_dir: Path, codex_version: str) -> Path:
     package_version = normalize_codex_version(codex_version)
     _copy_package_tree(sdk_root(), staging_dir)
-    sdk_bin_dir = staging_dir / "src" / "codex_app_server" / "bin"
+    sdk_bin_dir = staging_dir / "src" / "openai_codex" / "bin"
     if sdk_bin_dir.exists():
         shutil.rmtree(sdk_bin_dir)
 
@@ -572,7 +572,7 @@ def _normalized_schema_bundle_text(schema_dir: Path) -> str:
 
 def generate_v2_all(schema_dir: Path) -> None:
     """Regenerate the Pydantic v2 protocol model module from runtime schemas."""
-    out_path = sdk_root() / "src" / "codex_app_server" / "generated" / "v2_all.py"
+    out_path = sdk_root() / "src" / "openai_codex" / "generated" / "v2_all.py"
     out_dir = out_path.parent
     old_package_dir = out_dir / "v2_all"
     if old_package_dir.exists():
@@ -624,7 +624,7 @@ def _notification_specs(schema_dir: Path) -> list[tuple[str, str]]:
     )
     one_of = server_notifications.get("oneOf", [])
     generated_source = (
-        sdk_root() / "src" / "codex_app_server" / "generated" / "v2_all.py"
+        sdk_root() / "src" / "openai_codex" / "generated" / "v2_all.py"
     ).read_text()
 
     specs: list[tuple[str, str]] = []
@@ -702,7 +702,7 @@ def generate_notification_registry(schema_dir: Path) -> None:
     out = (
         sdk_root()
         / "src"
-        / "codex_app_server"
+        / "openai_codex"
         / "generated"
         / "notification_registry.py"
     )
@@ -834,7 +834,7 @@ def _load_public_fields(
 ) -> list[PublicFieldSpec]:
     """Load generated model fields used to render the ergonomic public methods."""
     exclude = exclude or set()
-    if module_name == "codex_app_server.generated.v2_all":
+    if module_name == "openai_codex.generated.v2_all":
         module = _load_generated_v2_all_module()
     else:
         module = importlib.import_module(module_name)
@@ -861,9 +861,9 @@ def _load_public_fields(
 
 def _load_generated_v2_all_module() -> types.ModuleType:
     """Import the freshly generated v2_all module without importing package init."""
-    module_name = "_codex_app_server_generated_v2_all_for_artifacts"
+    module_name = "_openai_codex_generated_v2_all_for_artifacts"
     sys.modules.pop(module_name, None)
-    module_path = sdk_root() / "src" / "codex_app_server" / "generated" / "v2_all.py"
+    module_path = sdk_root() / "src" / "openai_codex" / "generated" / "v2_all.py"
     spec = importlib.util.spec_from_file_location(module_name, module_path)
     if spec is None or spec.loader is None:
         raise RuntimeError(f"Failed to load generated module from {module_path}")
@@ -1084,7 +1084,7 @@ def _render_async_thread_block(
 def generate_public_api_flat_methods() -> None:
     """Regenerate the public convenience methods from generated protocol models."""
     src_dir = sdk_root() / "src"
-    public_api_path = src_dir / "codex_app_server" / "api.py"
+    public_api_path = src_dir / "openai_codex" / "api.py"
     if not public_api_path.exists():
         # PR2 can run codegen before the ergonomic public API layer is added.
         return
@@ -1093,25 +1093,25 @@ def generate_public_api_flat_methods() -> None:
         sys.path.insert(0, src_dir_str)
 
     thread_start_fields = _load_public_fields(
-        "codex_app_server.generated.v2_all",
+        "openai_codex.generated.v2_all",
         "ThreadStartParams",
     )
     thread_list_fields = _load_public_fields(
-        "codex_app_server.generated.v2_all",
+        "openai_codex.generated.v2_all",
         "ThreadListParams",
     )
     thread_resume_fields = _load_public_fields(
-        "codex_app_server.generated.v2_all",
+        "openai_codex.generated.v2_all",
         "ThreadResumeParams",
         exclude={"thread_id"},
     )
     thread_fork_fields = _load_public_fields(
-        "codex_app_server.generated.v2_all",
+        "openai_codex.generated.v2_all",
         "ThreadForkParams",
         exclude={"thread_id"},
     )
     turn_start_fields = _load_public_fields(
-        "codex_app_server.generated.v2_all",
+        "openai_codex.generated.v2_all",
         "TurnStartParams",
         exclude={"thread_id", "input"},
     )

sdk/python/src/openai_codex/_version.py

@@ -5,7 +5,7 @@ from importlib.metadata import PackageNotFoundError
 from importlib.metadata import version as distribution_version
 from pathlib import Path
 
-DISTRIBUTION_NAME = "openai-codex-app-server-sdk"
+DISTRIBUTION_NAME = "openai-codex"
 UNKNOWN_VERSION = "0+unknown"
 
 

sdk/python/tests/conftest.py

@@ -12,5 +12,5 @@ if src_str in sys.path:
 sys.path.insert(0, src_str)
 
 for module_name in list(sys.modules):
-    if module_name == "codex_app_server" or module_name.startswith("codex_app_server."):
+    if module_name == "openai_codex" or module_name.startswith("openai_codex."):
         sys.modules.pop(module_name)

sdk/python/tests/test_artifact_workflow_and_binaries.py

@@ -172,12 +172,12 @@ def test_examples_readme_points_to_runtime_version_source_of_truth() -> None:
 def test_runtime_distribution_name_is_consistent() -> None:
     script = _load_update_script_module()
     runtime_setup = _load_runtime_setup_module()
-    from codex_app_server import client as client_module
-    from codex_app_server import _version
+    from openai_codex import client as client_module
+    from openai_codex import _version
 
-    assert script.SDK_DISTRIBUTION_NAME == "openai-codex-app-server-sdk"
-    assert runtime_setup.SDK_PACKAGE_NAME == "openai-codex-app-server-sdk"
-    assert _version.DISTRIBUTION_NAME == "openai-codex-app-server-sdk"
+    assert script.SDK_DISTRIBUTION_NAME == "openai-codex"
+    assert runtime_setup.SDK_PACKAGE_NAME == "openai-codex"
+    assert _version.DISTRIBUTION_NAME == "openai-codex"
     assert script.RUNTIME_DISTRIBUTION_NAME == "openai-codex-cli-bin"
     assert runtime_setup.PACKAGE_NAME == "openai-codex-cli-bin"
     assert client_module.RUNTIME_PKG_NAME == "openai-codex-cli-bin"
@@ -457,18 +457,18 @@ def test_stage_sdk_release_injects_exact_runtime_pin(tmp_path: Path) -> None:
     )
 
     pyproject = (staged / "pyproject.toml").read_text()
-    assert 'name = "openai-codex-app-server-sdk"' in pyproject
+    assert 'name = "openai-codex"' in pyproject
     assert 'version = "0.116.0a1"' in pyproject
     assert '"openai-codex-cli-bin==0.116.0a1"' in pyproject
     assert (
         '__version__ = "0.116.0a1"'
-        not in (staged / "src" / "codex_app_server" / "__init__.py").read_text()
+        not in (staged / "src" / "openai_codex" / "__init__.py").read_text()
     )
     assert (
         'client_version: str = "0.116.0a1"'
-        not in (staged / "src" / "codex_app_server" / "client.py").read_text()
+        not in (staged / "src" / "openai_codex" / "client.py").read_text()
     )
-    assert not any((staged / "src" / "codex_app_server").glob("bin/**"))
+    assert not any((staged / "src" / "openai_codex").glob("bin/**"))
 
 
 def test_stage_sdk_release_replaces_existing_staging_dir(tmp_path: Path) -> None:
@@ -637,7 +637,7 @@ def test_stage_runtime_stages_binary_without_type_generation(tmp_path: Path) ->
 def test_default_runtime_is_resolved_from_installed_runtime_package(
     tmp_path: Path,
 ) -> None:
-    from codex_app_server import client as client_module
+    from openai_codex import client as client_module
 
     fake_binary = tmp_path / ("codex.exe" if client_module.os.name == "nt" else "codex")
     fake_binary.write_text("")
@@ -652,7 +652,7 @@ def test_default_runtime_is_resolved_from_installed_runtime_package(
 
 
 def test_explicit_codex_bin_override_takes_priority(tmp_path: Path) -> None:
-    from codex_app_server import client as client_module
+    from openai_codex import client as client_module
 
     explicit_binary = tmp_path / (
         "custom-codex.exe" if client_module.os.name == "nt" else "custom-codex"
@@ -670,7 +670,7 @@ def test_explicit_codex_bin_override_takes_priority(tmp_path: Path) -> None:
 
 
 def test_missing_runtime_package_requires_explicit_codex_bin() -> None:
-    from codex_app_server import client as client_module
+    from openai_codex import client as client_module
 
     ops = client_module.CodexBinResolverOps(
         installed_codex_path=lambda: (_ for _ in ()).throw(
@@ -684,7 +684,7 @@ def test_missing_runtime_package_requires_explicit_codex_bin() -> None:
 
 
 def test_broken_runtime_package_does_not_fall_back() -> None:
-    from codex_app_server import client as client_module
+    from openai_codex import client as client_module
 
     ops = client_module.CodexBinResolverOps(
         installed_codex_path=lambda: (_ for _ in ()).throw(

sdk/python/tests/test_async_client_behavior.py

@@ -4,12 +4,12 @@ import asyncio
 import time
 from types import SimpleNamespace
 
-from codex_app_server.async_client import AsyncAppServerClient
-from codex_app_server.generated.v2_all import (
+from openai_codex.async_client import AsyncAppServerClient
+from openai_codex.generated.v2_all import (
     AgentMessageDeltaNotification,
     TurnCompletedNotification,
 )
-from codex_app_server.models import Notification, UnknownNotification
+from openai_codex.models import Notification, UnknownNotification
 
 
 def test_async_client_allows_concurrent_transport_calls() -> None:

sdk/python/tests/test_client_rpc_methods.py

@@ -3,9 +3,9 @@ from __future__ import annotations
 from pathlib import Path
 from typing import Any
 
-from codex_app_server.client import AppServerClient, _params_dict
-from codex_app_server.generated.notification_registry import notification_turn_id
-from codex_app_server.generated.v2_all import (
+from openai_codex.client import AppServerClient, _params_dict
+from openai_codex.generated.notification_registry import notification_turn_id
+from openai_codex.generated.v2_all import (
     AgentMessageDeltaNotification,
     ApprovalsReviewer,
     ThreadListParams,
@@ -14,7 +14,7 @@ from codex_app_server.generated.v2_all import (
     TurnCompletedNotification,
     WarningNotification,
 )
-from codex_app_server.models import Notification, UnknownNotification
+from openai_codex.models import Notification, UnknownNotification
 
 ROOT = Path(__file__).resolve().parents[1]
 
@@ -45,7 +45,7 @@ def test_generated_params_models_are_snake_case_and_dump_by_alias() -> None:
 
 
 def test_generated_v2_bundle_has_single_shared_plan_type_definition() -> None:
-    source = (ROOT / "src" / "codex_app_server" / "generated" / "v2_all.py").read_text()
+    source = (ROOT / "src" / "openai_codex" / "generated" / "v2_all.py").read_text()
     assert source.count("class PlanType(") == 1
 
 

sdk/python/tests/test_contract_generation.py

@@ -8,9 +8,9 @@ from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[1]
 GENERATED_TARGETS = [
-    Path("src/codex_app_server/generated/notification_registry.py"),
-    Path("src/codex_app_server/generated/v2_all.py"),
-    Path("src/codex_app_server/api.py"),
+    Path("src/openai_codex/generated/notification_registry.py"),
+    Path("src/openai_codex/generated/v2_all.py"),
+    Path("src/openai_codex/api.py"),
 ]
 
 

sdk/python/tests/test_public_api_runtime_behavior.py

@@ -7,9 +7,9 @@ from types import SimpleNamespace
 
 import pytest
 
-import codex_app_server.api as public_api_module
-from codex_app_server.client import AppServerClient
-from codex_app_server.generated.v2_all import (
+import openai_codex.api as public_api_module
+from openai_codex.client import AppServerClient
+from openai_codex.generated.v2_all import (
     AgentMessageDeltaNotification,
     ItemCompletedNotification,
     MessagePhase,
@@ -17,8 +17,8 @@ from codex_app_server.generated.v2_all import (
     TurnCompletedNotification,
     TurnStatus,
 )
-from codex_app_server.models import InitializeResponse, Notification
-from codex_app_server.api import (
+from openai_codex.models import InitializeResponse, Notification
+from openai_codex.api import (
     AsyncCodex,
     AsyncThread,
     AsyncTurnHandle,

sdk/python/tests/test_public_api_signatures.py

@@ -6,9 +6,9 @@ import tomllib
 from pathlib import Path
 from typing import Any
 
-import codex_app_server
-import codex_app_server.types as public_types
-from codex_app_server import (
+import openai_codex
+import openai_codex.types as public_types
+from openai_codex import (
     AppServerConfig,
     AsyncCodex,
     AsyncThread,
@@ -16,7 +16,7 @@ from codex_app_server import (
     RunResult,
     Thread,
 )
-from codex_app_server.types import InitializeResponse
+from openai_codex.types import InitializeResponse
 
 EXPECTED_ROOT_EXPORTS = [
     "__version__",
@@ -122,32 +122,32 @@ def test_package_and_default_client_versions_follow_project_version() -> None:
     pyproject_path = Path(__file__).resolve().parents[1] / "pyproject.toml"
     pyproject = tomllib.loads(pyproject_path.read_text())
 
-    assert codex_app_server.__version__ == pyproject["project"]["version"]
-    assert AppServerConfig().client_version == codex_app_server.__version__
+    assert openai_codex.__version__ == pyproject["project"]["version"]
+    assert AppServerConfig().client_version == openai_codex.__version__
 
 
 def test_package_includes_py_typed_marker() -> None:
     """The wheel should advertise that inline type information is available."""
-    marker = resources.files("codex_app_server").joinpath("py.typed")
+    marker = resources.files("openai_codex").joinpath("py.typed")
     assert marker.is_file()
 
 
 def test_package_root_exports_only_public_api() -> None:
     """The package root should expose the supported SDK surface, not internals."""
-    assert codex_app_server.__all__ == EXPECTED_ROOT_EXPORTS
+    assert openai_codex.__all__ == EXPECTED_ROOT_EXPORTS
     assert {
-        name: hasattr(codex_app_server, name) for name in EXPECTED_ROOT_EXPORTS
+        name: hasattr(openai_codex, name) for name in EXPECTED_ROOT_EXPORTS
     } == {name: True for name in EXPECTED_ROOT_EXPORTS}
     assert {
-        "AppServerClient": hasattr(codex_app_server, "AppServerClient"),
-        "AsyncAppServerClient": hasattr(codex_app_server, "AsyncAppServerClient"),
-        "InitializeResponse": hasattr(codex_app_server, "InitializeResponse"),
-        "ThreadStartParams": hasattr(codex_app_server, "ThreadStartParams"),
-        "TurnStartParams": hasattr(codex_app_server, "TurnStartParams"),
+        "AppServerClient": hasattr(openai_codex, "AppServerClient"),
+        "AsyncAppServerClient": hasattr(openai_codex, "AsyncAppServerClient"),
+        "InitializeResponse": hasattr(openai_codex, "InitializeResponse"),
+        "ThreadStartParams": hasattr(openai_codex, "ThreadStartParams"),
+        "TurnStartParams": hasattr(openai_codex, "TurnStartParams"),
         "TurnCompletedNotification": hasattr(
-            codex_app_server, "TurnCompletedNotification"
+            openai_codex, "TurnCompletedNotification"
         ),
-        "TurnStatus": hasattr(codex_app_server, "TurnStatus"),
+        "TurnStatus": hasattr(openai_codex, "TurnStatus"),
     } == {
         "AppServerClient": False,
         "AsyncAppServerClient": False,
@@ -162,7 +162,7 @@ def test_package_root_exports_only_public_api() -> None:
 def test_package_star_import_matches_public_api() -> None:
     """Star imports should follow the same explicit public API list."""
     namespace: dict[str, object] = {}
-    exec("from codex_app_server import *", namespace)
+    exec("from openai_codex import *", namespace)
 
     exported = set(namespace) - {"__builtins__"}
     assert exported == set(EXPECTED_ROOT_EXPORTS)
@@ -179,7 +179,7 @@ def test_types_module_exports_curated_public_types() -> None:
 def test_types_star_import_matches_public_types() -> None:
     """Star imports from the type module should match its explicit export list."""
     namespace: dict[str, object] = {}
-    exec("from codex_app_server.types import *", namespace)
+    exec("from openai_codex.types import *", namespace)
 
     exported = set(namespace) - {"__builtins__"}
     assert exported == set(EXPECTED_TYPES_EXPORTS)
@@ -189,11 +189,11 @@ def test_examples_use_public_import_surfaces() -> None:
     """Examples should teach users the public root and type-module imports only."""
     examples_root = Path(__file__).resolve().parents[1] / "examples"
     private_import_markers = [
-        "codex_app_server.api",
-        "codex_app_server.client",
-        "codex_app_server.generated",
-        "codex_app_server.models",
-        "codex_app_server.retry",
+        "openai_codex.api",
+        "openai_codex.client",
+        "openai_codex.generated",
+        "openai_codex.models",
+        "openai_codex.retry",
     ]
 
     offenders = {

sdk/python/tests/test_real_app_server_integration.py

@@ -205,7 +205,7 @@ def test_real_initialize_and_model_list(runtime_env: PreparedRuntimeEnv) -> None
         textwrap.dedent(
             """
             import json
-            from codex_app_server import Codex
+            from openai_codex import Codex
 
             with Codex() as codex:
                 models = codex.models(include_hidden=True)
@@ -234,7 +234,7 @@ def test_real_thread_and_turn_start_smoke(runtime_env: PreparedRuntimeEnv) -> No
         textwrap.dedent(
             """
             import json
-            from codex_app_server import Codex, TextInput
+            from openai_codex import Codex, TextInput
 
             with Codex() as codex:
                 thread = codex.thread_start(
@@ -271,7 +271,7 @@ def test_real_thread_run_convenience_smoke(runtime_env: PreparedRuntimeEnv) -> N
         textwrap.dedent(
             """
             import json
-            from codex_app_server import Codex
+            from openai_codex import Codex
 
             with Codex() as codex:
                 thread = codex.thread_start(
@@ -304,7 +304,7 @@ def test_real_async_thread_turn_usage_and_ids_smoke(
             """
             import asyncio
             import json
-            from codex_app_server import AsyncCodex, TextInput
+            from openai_codex import AsyncCodex, TextInput
 
             async def main():
                 async with AsyncCodex() as codex:
@@ -347,7 +347,7 @@ def test_real_async_thread_run_convenience_smoke(
             """
             import asyncio
             import json
-            from codex_app_server import AsyncCodex
+            from openai_codex import AsyncCodex
 
             async def main():
                 async with AsyncCodex() as codex:
@@ -436,7 +436,7 @@ def test_real_streaming_smoke_turn_completed(runtime_env: PreparedRuntimeEnv) ->
         textwrap.dedent(
             """
             import json
-            from codex_app_server import Codex, TextInput
+            from openai_codex import Codex, TextInput
 
             with Codex() as codex:
                 thread = codex.thread_start(
@@ -469,7 +469,7 @@ def test_real_turn_interrupt_smoke(runtime_env: PreparedRuntimeEnv) -> None:
         textwrap.dedent(
             """
             import json
-            from codex_app_server import Codex, TextInput
+            from openai_codex import Codex, TextInput
 
             with Codex() as codex:
                 thread = codex.thread_start(

sdk/python/uv.lock

@@ -281,7 +281,7 @@ wheels = [
 ]
 
 [[package]]
-name = "openai-codex-app-server-sdk"
+name = "openai-codex"
 version = "0.131.0a4"
 source = { editable = "." }
 dependencies = [