# Mode Investigate

> Investigation-first mode for uncertain issues, evidence collection, and hypothesis ranking.

- Skill: `duck4nh/mode-investigate` (Agent Skill)
- Install (CLI): `npx skillmds@latest add duck4nh/mode-investigate`
- Raw SKILL.md: https://api.skillmd.com/api/skills/duck4nh/mode-investigate/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: duck4nh (https://skillmd.com/u/duck4nh)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/duck4nh/mode-investigate

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# Mode Investigate

## Instructions
- Collect reproducible evidence, environment details, and recent changes.
- Rank hypotheses by confidence and test cost.
- Hand off to Debug mode once root cause confidence is high.

## Guardrails
- No implementation in this mode unless explicitly approved.