Summary

• use PackyCode-compatible Chat Completions first for AI release notes
• omit reasoning settings by default so release notes do not use xhigh-style reasoning
• keep Responses API as a fallback when chat output is empty

Tests

• PATH="/Users/houhaixu/.nvm/versions/node/v22.17.1/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/usr/local/bin:/usr/local/sbin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/pkg/env/global/bin:/Library/Apple/usr/bin:/usr/local/go/bin:/Users/houhaixu/.codex/tmp/arg0/codex-arg0Zhlqdi:/Users/houhaixu/.workbuddy/bin:/Users/houhaixu/.codebuddy/bin:/Users/houhaixu/.nvm/versions/node/v24.14.0/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/usr/local/mysql/bin:/Users/houhaixu/.vscode/extensions/openai.chatgpt-26.519.32039-darwin-x64/bin/macos-x86_64" pnpm test:release
• git diff --check