Files
codex/sdk/python
Won Park 17ae906048 Fix auto-review config compatibility across protocol and SDK (#19113)
## Why

This keeps the partial Guardian subagent -> Auto-review rename
forward-compatible across mixed Codex installations. Newer binaries need
to understand the new `auto_review` spelling, but they cannot write it
to shared `~/.codex/config.toml` yet because older CLI/app-server
bundles only know `user` and `guardian_subagent` and can fail during
config load before recovering.

The Python SDK had the opposite compatibility gap: app-server responses
can contain `approvalsReviewer: "auto_review"`, but the checked-in
generated SDK enum did not accept that value.

## What Changed

- Keep `ApprovalsReviewer::AutoReview` readable from both
`guardian_subagent` and `auto_review`, while serializing it as
`guardian_subagent` in both protocol crates.
- Update TUI Auto-review persistence tests so enabling Auto-review
writes `approvals_reviewer = "guardian_subagent"` while UI copy still
says Auto-review.
- Map managed/cloud `feature_requirements.auto_review` to the existing
`Feature::GuardianApproval` gate without adding a broad local
`[features].auto_review` key or changing config writes.
- Add `auto_review` to the Python SDK `ApprovalsReviewer` enum and cover
`ThreadResumeResponse` validation.

## Testing

- `cargo test -p codex-protocol approvals_reviewer`
- `cargo test -p codex-app-server-protocol approvals_reviewer`
- `cargo test -p codex-tui
update_feature_flags_enabling_guardian_selects_auto_review`
- `cargo test -p codex-tui
update_feature_flags_enabling_guardian_in_profile_sets_profile_auto_review_policy`
- `cargo test -p codex-core
feature_requirements_auto_review_disables_guardian_approval`
- `pytest
sdk/python/tests/test_client_rpc_methods.py::test_thread_resume_response_accepts_auto_review_reviewer`
- `git diff --check`
2026-04-23 03:12:56 -07:00
..

Codex App Server 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.

The generated wire-model layer is currently sourced from the bundled v2 schema and exposed as Pydantic models with snake_case Python fields that serialize back to the app-servers camelCase wire format.

Install

cd sdk/python
python -m pip install -e .

Published SDK builds pin an exact openai-codex-cli-bin runtime dependency. For local repo development, either pass AppServerConfig(codex_bin=...) to point at a local build explicitly, or use the repo examples/notebook bootstrap which installs the pinned runtime package automatically.

Quickstart

from codex_app_server import Codex

with Codex() as codex:
    thread = codex.thread_start(model="gpt-5")
    result = thread.run("Say hello in one sentence.")
    print(result.final_response)
    print(len(result.items))

result.final_response is None when the turn completes without a final-answer or phase-less assistant message item.

Docs map

  • Golden path tutorial: docs/getting-started.md
  • API reference (signatures + behavior): docs/api-reference.md
  • Common decisions and pitfalls: docs/faq.md
  • Runnable examples index: examples/README.md
  • Jupyter walkthrough notebook: notebooks/sdk_walkthrough.ipynb

Examples

Start here:

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

Runtime packaging

The repo no longer checks codex binaries into sdk/python.

Published SDK builds are pinned to an exact openai-codex-cli-bin package version, and that runtime package carries the platform-specific binary for the target wheel.

For local repo development, the checked-in sdk/python-runtime package is only a template for staged release artifacts. Editable installs should use an explicit codex_bin override for manual SDK usage; the repo examples and notebook bootstrap the pinned runtime package automatically.

Maintainer workflow

cd sdk/python
python scripts/update_sdk_artifacts.py generate-types
python scripts/update_sdk_artifacts.py \
  stage-sdk \
  /tmp/codex-python-release/codex-app-server-sdk \
  --runtime-version 1.2.3
python scripts/update_sdk_artifacts.py \
  stage-runtime \
  /tmp/codex-python-release/openai-codex-cli-bin \
  /path/to/codex \
  --runtime-version 1.2.3

This supports the CI release flow:

  • run generate-types before packaging
  • stage codex-app-server-sdk 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; do not publish an sdist

Compatibility and versioning

  • Package: codex-app-server-sdk
  • Runtime package: openai-codex-cli-bin
  • Current SDK version in this repo: 0.2.0
  • Python: >=3.10
  • Target protocol: Codex app-server JSON-RPC v2
  • Recommendation: keep SDK and codex CLI reasonably up to date together

Notes

  • Codex() is eager and performs startup + initialize in the constructor.
  • Use context managers (with Codex() as codex:) to ensure shutdown.
  • Prefer thread.run("...") for the common case. Use thread.turn(...) when you need streaming, steering, or interrupt control.
  • For transient overload, use codex_app_server.retry.retry_on_overload.