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🌟 Release Highlights

This release focuses on reliability and correctness improvements — fixing data races, MCP context management, safe-outputs permissions, and compiler diagnostics. Dependency and tooling updates keep everything fresh.

🐛 Bug Fixes & Improvements

  • add-comment now emits pull-requests: write by default — Previously, workflows using add-comment safe-outputs would fail with "Resource not accessible by integration" when commenting on PRs because the compiler only emitted issues: write. The compiler now correctly emits both issues: write and pull-requests: write, and provides new issues/pull-requests/discussions flags for fine-grained control. (#18318)

  • Eliminated a sync.Once data race in cache-clear functions — A concurrency bug that could cause non-deterministic behavior when clearing caches has been resolved. (#18280)

  • MCP request context propagation fixed — checkActorPermission now correctly receives the MCP request context, ensuring timeouts and cancellations propagate correctly throughout the permission-check call chain. (#18281)

  • MCP inspector sub-contexts released promptly — connectStdioMCPServer and connectHTTPMCPServer now release WithTimeout sub-contexts immediately after each sequential MCP operation rather than deferring, reducing timer resource hold time. (#18343)

  • Preserved ExitError in error chain — ExitError is no longer dropped during run-workflow validation, enabling downstream error handling to correctly inspect exit codes. (#18282 via release notes)

✨ What's New

  • Schema path heuristic for misplaced frontmatter fields — When a field appears in the wrong location in a workflow's frontmatter, the compiler now suggests the correct schema path, making it much easier to diagnose configuration errors. (#18320)

  • Suppressed actionlint SC1003 false positives — Generated AWF shell commands no longer trigger spurious actionlint SC1003 warnings, reducing noise in CI linting output. (#18316)

  • Cleaner footer install message — The workflow footer now links "agentic workflow" directly to the source URL and displays the install command in a formatted code block for better readability. (#18345)

🔧 Internal

  • Refactored MCP error construction with a newMCPError helper, eliminating 30+ repeated jsonrpc.Error struct literals across MCP tool files. (#18341)
  • Updated Claude Code 2.1.52 → 2.1.56 and Copilot CLI 0.0.415 → 0.0.417. (#18313)
  • Updated golang.org/x/tools from v0.41.0 to v0.42.0. (#18319)

🌍 Community Contributions

A huge thank you to the community members who reported issues resolved in this release:

For complete details, see CHANGELOG.

Generated by Release

What's Changed

Full Changelog: https://github.com/github/gh-aw/compare/v0.50.2...v0.50.3

Source: README.md, updated 2026-02-25