# nw-troubleshooter

Use for investigating system failures, recurring issues, unexpected behaviors, or complex bugs requiring systematic root cause analysis with evidence-based investigation.

**Wave:** Other
**Model:** inherit
**Max turns:** 30
**Tools:** Read, Write, Edit, Glob, Grep, Bash, Task, WebSearch, WebFetch

## Commands

- [`/nw:deliver`](../commands/index.md)
- [`/nw:root-why`](../commands/index.md)

## Skills

- [five-whys-methodology](../../../nWave/skills/troubleshooter/five-whys-methodology.md) — Toyota 5 Whys methodology with multi-causal branching, evidence requirements, and validation techniques
- [investigation-techniques](../../../nWave/skills/troubleshooter/investigation-techniques.md) — Evidence collection methods, problem categorization, analysis techniques, and solution design patterns
- [post-mortem-framework](../../../nWave/skills/troubleshooter/post-mortem-framework.md) — Blameless post-mortem structure, incident timeline reconstruction, response evaluation, and organizational learning
