Files
codex/sdk/python
karenwong-openai 358e464528 Allow plugin starter prompts up to 512 characters (#60048)
## What changed

Raise the per-entry limit for plugin `interface.defaultPrompt` from 128 to 512 characters, retaining the maximum of three prompts. Update the protocol documentation and generated schemas and bindings to reflect the new limit.

## Testing

Update manifest coverage to accept a 512-character Unicode prompt and reject an over-limit prompt. Adjust the discovery warning test to use a 513-character prompt.

GitOrigin-RevId: 0ba3ceb253edf22a583f774492934b7c9b5ac231
2026-11-07 03:08:46 +00:00
..

OpenAI Codex Python SDK

Build Python applications that start Codex threads, run turns, stream progress, and control workspace access.

Install

Install the SDK:

pip install openai-codex

Quickstart

The SDK reuses your existing Codex authentication when one is already available:

from openai_codex import Codex

with Codex() as codex:
    thread = codex.thread_start()
    result = thread.run("Explain this repository in three bullets.")
    print(result.final_response)

thread.run(...) returns a TurnResult containing the final response, collected items, and token usage.

Authentication

Existing Codex authentication is reused automatically. To start ChatGPT browser login explicitly:

from openai_codex import Codex

with Codex() as codex:
    login = codex.login_chatgpt()
    print(login.auth_url)
    print(login.wait().success)

For device-code login:

with Codex() as codex:
    login = codex.login_chatgpt_device_code()
    print(login.verification_url, login.user_code)
    login.wait()

For API-key login:

with Codex() as codex:
    codex.login_api_key("sk-...")

Built-In Help

Use Python's standard help(openai_codex), help(Codex), or python -m pydoc openai_codex documentation tools.

Documentation

The package is licensed under the repository Apache License 2.0.