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Agent Skill

retrospective

End-of-session retro that captures learnings and updates your skills.

Session retrospective for continual learning. Reviews conversation, extracts learnings, updates skills. Run at end of coding sessions to capture successes, failures, and discoveries before context is lost.

What it does

Reviews the entire conversation at end of session, identifies successes, failures, and discoveries, then updates relevant skill files with dated learnings. Ensures hard-won insights are captured before context is lost, and suggests new skills when recurring patterns emerge.

Key features

  • 5-step process — session analysis, skill identification, learning extraction, skill update, summary output
  • Dual capture — documents both what worked and what failed (with reasons)
  • Skill-aware — checks personal and project skill directories, updates existing files or suggests new ones
  • Dated entries — all learnings timestamped for tracking evolution
  • Actionable output — concrete entries like “Use —no-cache flag” not vague “caching can cause issues”

When to use

At the end of any coding session where you learned something non-obvious — debugging breakthroughs, configuration quirks, anti-patterns discovered, or effective approaches worth remembering.