Facilitates structured task retrospectives to extract actionable lessons.

Install

mkdir -p .claude/skills/retro-lowyshin && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/17558" && unzip -o skill.zip -d .claude/skills/retro-lowyshin && rm skill.zip

Installs to .claude/skills/retro-lowyshin

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

Post-task retrospective and learning extraction skill. Inspired by gstack's /retro and integrated with K-Layer. Use this after completing a significant task or resolving a complex issue to document lessons learned and improve future performance. Triggers: retro, retrospective, post-mortem, lessons learned, 회고, 사후 분석, 振り返り
323 charsno explicit “when” triggerlonger than Claude Code's old 250-char listing cap (fine on current versions)
Beginner

Key capabilities

  • Summarize completed tasks
  • Identify successful aspects of implementation
  • List pain points, bottlenecks, or mistakes
  • Extract actionable advice for future tasks
  • Integrate lessons into the Knowledge Layer as source-linked claims

How it works

The skill guides a structured reflection process after a task is completed. It prompts for successes, challenges, and lessons learned, then converts these lessons into K-Layer claims.

Inputs & outputs

You give it
/retro [task-id or feature-name]
You get back
📝 Task Retrospective: [Feature Name]

When to use retro

  • Running a post-mortem
  • Documenting lessons learned
  • Improving future project performance

About this skill

Retro Skill

The retro skill helps you reflect on a completed task to extract valuable insights and prevent future mistakes.

Workflow

  1. Summary: Briefly summarize the completed task.
  2. What went well: List the successful aspects of the implementation.
  3. What could be improved: Identify pain points, bottlenecks, or mistakes.
  4. Lessons Learned: Extract actionable advice for future tasks.
  5. K-Layer Integration: Automatically convert lessons into "Source-linked claims" for the Knowledge Layer.

Usage

/retro [task-id or feature-name]

Template

The retrospective should follow this structure:

📝 Task Retrospective: [Feature Name]

  • Completion Date: YYYY-MM-DD
  • Related Task/Issue: [Link]

🚀 Successes

  • [Item 1]
  • [Item 2]

⚠️ Challenges & Mistakes

  • [Problem 1]: [Root Cause]
  • [Problem 2]: [Root Cause]

💡 Key Lessons

  • [Lesson 1] -> [Action for next time]
  • [Lesson 2] -> [Action for next time]

🧠 K-Layer Claims

  • [Claim 1]: [Source Reference]
  • [Claim 2]: [Source Reference]

When not to use it

  • Before completing a significant task
  • For tasks that did not involve complex issues
  • For general project management without a retrospective focus

Limitations

  • Only applicable after a significant task is completed
  • Requires a task-id or feature-name as input
  • Focuses on documentation, not direct problem-solving

How it compares

This skill provides a specific template and workflow for post-task retrospectives, ensuring consistent documentation of lessons learned and integration with a knowledge base, unlike informal feedback.

Compared to similar skills

retro side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
retro (this skill)02moReviewBeginner
session-handoff132moReviewBeginner
spec-to-backlog83moNo flagsIntermediate
create-handoff36moReviewIntermediate

Try saying

Example prompts that trigger this skill in your AI assistant.

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