# Unknown Tool Skill

> Use when testing unknown tool validation

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

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This skill references unknown tools.
Tools must be known Claude Code tools: Bash, Read, Write, Edit, Grep, Glob, Task, etc.