feat: OpenAI Codex ChatGPT OAuth + v2.1.1#203
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- openai_codex_oauth(): reads ~/.codex/auth.json (auth_mode=chatgpt), decodes JWT exp claim for expiry detection - openai_codex_refresh(): single-use refresh token flow, always writes new token back to auth.json immediately - openai_codex_login(): full Auth Code + PKCE flow on port 1455, matching Codex CLI's redirect URI - _codex_jwt_expiry(): decode JWT exp without signature verification - main(): dispatch for --refresh / --login / read-existing - registry.py: correct base_url → chatgpt.com/backend-api/codex/responses, backend → oauth - config.yaml: fix token/refresh endpoints to auth.openai.com, correct client_id and base_url Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
~/.codex/auth.json, Auth Code + PKCE login (port 1455), single-use refresh token handling, JWTexpexpiry detectionchatgpt.com/backend-api/codex/responses(notapi.openai.com)config.yamlendpoints and client IDTest plan
faigate-auth openai-codexreads existing credentialsfaigate-auth openai-codex --refreshrotates single-use tokenfaigate-auth openai-codex --loginopens browser on port 1455🤖 Generated with Claude Code