Individual skill
bug-root-cause-finder
Root cause analysis methods for PHP bugs. Provides 5 Whys technique, fault tree analysis, git bisect guidance, and stack trace parsing.
skills/bug-root-cause-finder/SKILL.md
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# Bug Root Cause Finder
Systematic methods for finding the true source of bugs, not just symptoms.
## Core Principle: Symptom ≠ Cause
The location where an error manifests is rarely where the bug originates.
```
Error Location: OrderController::show() - NullPointerException
Symptom Location: OrderRepository::find() - returns null
Root Cause: OrderCreatedHandler - failed to persist order
True Root Cause: RabbitMQ message lost due to missing ACK
```