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root-cause-diagnoser

Performs 5-Whys and Ishikawa fishbone causal analysis to discover root causes behind systemic bugs, outages, and regressions.

skills/reasoning/root-cause-diagnoser/SKILL.md

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## Purpose

Drill past surface-level symptoms and immediate triggers to uncover the systemic, architectural, and organizational root causes of engineering failures.

## When to Use

- Post-incident reviews and postmortems.
- Recurring bugs that keep resurfacing after quick patches.
- Flaky systems where the immediate fix failed to prevent secondary fallout.

## What to Analyze

1. **Immediate Trigger**: What directly caused the error?
2. **Propagation Chain**: How did the failure cascade through the system?