Please help me install this Agent Skill. Skill: root-cause-tracing Source: https://github.com/baleen37/dotfiles/tree/main/modules/shared/config/claude/skills/root-cause-tracing Command: npx skills add https://github.com/baleen37/dotfiles --skill root-cause-tracing-baleen37

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

Bugs often manifest deep in the call stack, leading to symptom-based fixes that don't address the original problem. This skill provides a systematic method to trace bugs backward through the execution chain, identifying the true source of invalid data or incorrect behavior for a permanent fix.

Core Features & Use Cases

Backward Tracing: Systematically traces the call stack from the error symptom back to the original trigger.
Instrumentation for Evidence: Guides you to add diagnostic logging and stack traces to pinpoint the exact origin of bad values.
Polluter Identification: Includes a bisection script to efficiently find which test or code block introduces unwanted state.
Use Case: If git init fails in an unexpected directory, this skill helps you trace back through the cwd parameter's origin, revealing an empty string passed from a test setup, allowing you to fix the root cause.

Quick Start

1. Observe the Symptom: (e.g., Error: git init failed in /wrong/dir)

2. Find Immediate Cause: Identify the code directly causing the error.

3. Ask: What Called This? Trace up the call stack.

4. Keep Tracing Up: Identify the problematic value and its origin.

5. Find Original Trigger: Locate where the bad value was first introduced.

To find which test causes pollution:

./find-polluter.sh '.git' 'src/**/*.test.ts'