# With Custom Agent

> Use when testing custom agent validation

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

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This skill uses a custom agent name in kebab-case format.
Custom agent names must be 1-64 lowercase letters, digits, and hyphens.