Run a post-IMPL retro to identify what should be encoded into setup artifacts before the next ticket. Use when asked to "run the retro", "do the retro", "what should we encode from this ticket?", "post-impl retro", or "retro on PR #N". Also triggers after a review-tdd-green run finds gaps. The goal: surface 3–5 specific candidate additions to CLAUDE.md, issue templates, or hooks — not a comprehensive audit, just what's worth making permanent.
$npx -y skills add lilacmohr/ai-engineering-playbook --skill retroInstalls into the current project.
Run `npx skills use "https://github.com/lilacmohr/ai-engineering-playbook" --skill "lilacmohr/ai-engineering-playbook/retro"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/lilacmohr/ai-engineering-playbook" that are relevant to the current task. Run `npx skills add "https://github.com/lilacmohr/ai-engineering-playbook"` and select the relevant skills, then follow their instructions.