description: Create a new Agent Skill for this codebase argument-hint: [skill-name] [description]
Write an Agent Skill
You are creating an Agent Skill - a structured capability that coding agents can discover and use to perform tasks more accurately and efficiently.
What is an Agent Skill?
A skill is a folder of instructions, scripts, and resources that agents load on-demand. Unlike slash commands (single prompts), skills provide comprehensive, structured guidance for complex workflows.
Key insight: Skills are consumed by coding agents, not humans. Structure them so an agent can:
- Quickly understand what the skill does (from
description) - Load core instructions (from
SKILL.md) - Access detailed references only when needed (from
references/)
Directory Structure
Create in .claude/skills/<skill-name>/:
skill-name/
├── SKILL.md # Required - core instructions
└── references/ # Optional - detailed docs loaded on-demand
├── REFERENCE.md
└── ...
SKILL.md Format
Frontmatter (Required)
---
name: skill-name # Lowercase, hyphens only, matches folder name
description: What this skill does and WHEN to use it. Include trigger keywords.
license: Proprietary # Optional
metadata: # Optional
author: autumn
version: "1.0"
---
Critical: The description must tell the agent WHEN to activate this skill. Include specific keywords and scenarios.
Body Structure
Write for an agent, not a human. Be direct and actionable.
## What I do
[One sentence - what capability this provides]
## Before Starting
[Prerequisites, files to read first, setup requirements]
## Critical Rules
**DO:**
- [Concrete actions]
**DON'T:**
- [Common mistakes to avoid]
## Process / Template
[Step-by-step instructions or code templates]
## References
Load these on-demand for detailed information:
- [references/TOPIC.md](references/TOPIC.md) - Brief description
Design Principles
-
Progressive disclosure: Keep
SKILL.mdunder 500 lines. Move details toreferences/. -
Agent-first writing: No fluff. Every line should help the agent do the task correctly.
-
Include templates: Agents work better with concrete examples and copy-paste templates.
-
Trigger keywords: The description should include words users might say that should activate this skill.
-
Reference files: Keep them focused and small. Agents load them on-demand, so smaller = less context used.
Examples in This Codebase
Study these existing skills:
.claude/skills/linear-ticket/SKILL.md- Simple skill, single file, uses MCP tools.claude/skills/write-test/SKILL.md- Complex skill with multiple reference files
Your Task
- Ask what the skill should do if
$ARGUMENTSis empty or unclear - Search the codebase for patterns, existing implementations, and conventions
- Create the skill directory and
SKILL.md - Add references if the skill needs detailed documentation (keep
SKILL.mdfocused) - Verify the skill follows the patterns in existing skills
Naming Convention
- Folder:
.claude/skills/<skill-name>/ - Name must be lowercase with hyphens only
- Name must match the folder name
- Keep names short but descriptive:
write-test,linear-ticket,code-review
Expert Next.js App Router
Developpement
Un skill qui transforme Claude en expert Next.js App Router.
Générateur de README
Developpement
Crée des README.md professionnels et complets pour vos projets.
Rédacteur de Documentation API
Developpement
Génère de la documentation API complète au format OpenAPI/Swagger.