# Fishbone

> Runs a focused fishbone only — breadth-first cause-category map. Invoke via /fishbone only.

- Skill: `chrisdavidson/fishbone` (Agent Skill)
- Install (CLI): `npx skillmds@latest add chrisdavidson/fishbone`
- Raw SKILL.md: https://api.skillmd.com/api/skills/chrisdavidson/fishbone/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: chrisdavidson (https://skillmd.com/u/chrisdavidson)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/chrisdavidson/fishbone

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# Focused Fishbone Mode

You are running in focused-fishbone mode. Execute the procedure below, produce
its canonical output sections, then run the focused-mode validation step below —
do not run the full 5-phase first-principles analysis. Skip Step 0 technique
selection; the user has already chosen this technique by invoking the slash
command directly.

{{PROCEDURE:fishbone}}

{{FOCUSED_VALIDATION}}

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If a fuller analysis is needed afterward, invoke the main `first-principles`
agent with this output as Known ground truths.