learn-from-mistake

Analyze agent mistakes to identify root causes and apply verified preventive fixes.

4|Updated Sep 25, 2025
One-click install
npx skills add https://github.com/cowwoc/styler --skill learn-from-mistake
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: learn-from-mistake
Source: https://github.com/cowwoc/styler/tree/main/.claude/skills/learn-from-mistakes
Command: npx skills add https://github.com/cowwoc/styler --skill learn-from-mistake

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires jq, git.

What problem does it solve?

AI agents inevitably make mistakes, leading to delays, rework, and protocol violations. Manually identifying the root cause of these errors and implementing effective, lasting fixes is a time-consuming and complex process that often fails to prevent recurrence. This Skill automates that critical learning loop.

Core Features & Use Cases

  • Root Cause Analysis: Systematically investigates agent conversations to pinpoint the "triggering thought" or context leading to a mistake.
  • Automated Fixes: Designs and applies preventive measures, such as updating agent prompt templates, clarifying documentation, or creating active validation hooks.
  • Reproduction Testing: Critically, it attempts to reproduce the original mistake after applying fixes to verify that the prevention mechanism works, ensuring "AI works, you rest."
  • Use Case: An agent repeatedly creates files in the wrong worktree. This Skill analyzes the conversation, identifies the root cause (e.g., ambiguous working directory instructions), creates a pre-write.sh hook to block future violations, and then attempts to make the same mistake to confirm the hook's effectiveness.

Quick Start

Use the learn-from-mistake skill to analyze the recent error where the 'architect' agent created files in the wrong worktree during the 'implement-formatter-api' task.

Frequently Asked Questions about learn-from-mistake

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I analyze why an AI agent made a mistake and prevent it from happening again?

Root cause analysis identifies the triggering context or thought leading to agent errors. This Skill systematically investigates conversations, pinpoints the mistake's origin, designs preventive fixes like prompt updates or validation hooks, then reproduces the error to verify the prevention works before deploying changes.

Can I automate debugging agent protocol violations and configuration updates?

Yes. The Skill enforces a phase-driven workflow—INVESTIGATE, PREVENT, FIX—with phase-state tracking and git history restoration. It automates root cause investigation, applies targeted fixes to agent configurations, and blocks premature fixes until prevention is verified through reproduction testing.

What's the best way to verify that my agent error fix actually works?

Reproduction testing attempts to trigger the original mistake after applying preventive measures. By recreating the exact conditions and confirming the agent no longer fails, you validate that the fix prevents recurrence rather than just masking the symptom.

Do I need git and jq to use this mistake analysis automation?

Yes. Git enables history restoration for content recovery and workflow tracking, while jq handles structured data parsing during root cause investigation. Both are required dependencies for the Skill's phase-driven analysis pipeline.

How does this differ from manually reviewing agent errors?

Manual review is time-consuming and often fails to prevent recurrence. This Skill automates the learning loop—systematically investigating conversations, applying targeted preventive fixes, and validating them through reproduction—reducing rework and ensuring consistent error prevention.

Can I use this for post-mortem analysis after an agent creates files in the wrong location?

Yes. The Skill is designed for post-mortem review of recurring mistakes like incorrect file placement. It identifies ambiguous instructions as root cause, creates validation hooks like pre-write checks to block violations, then tests whether the agent still attempts the error.