create-skill

name	create-skill
description	Create a new Claude Code skill from a description. Use when the user says "create skill", "new skill", or "add a slash command".
argument-hint	<skill-name>
user-invocable	true
allowed-tools	Read, Write, Glob
model	sonnet

/create-skill — Generate a new skill

Create a new skill (slash command) following the framework's conventions.

Steps

1. If $ARGUMENTS is empty, ask the user for:

   • Skill name (lowercase, hyphenated)
   • What the skill should do (one sentence)
   • When it should trigger (what the user would say)

2. Read an existing skill for reference patterns:

   .claude/skills/review/SKILL.md
   

3. Generate the skill file following this structure:

   ---
   name: <skill-name>
   description: <what it does>. Use when the user says "<trigger phrases>".
   argument-hint: "<hint>"
   user-invocable: true
   allowed-tools: <minimal set needed>
   model: <haiku for simple, sonnet for complex>
   ---
   

   Body structure:

   # /<skill-name> — <one-line description>
   
   <What this skill does, in one sentence.>
   
   ## Steps
   
   1. <first action>
   2. <second action>
   3. <report results in specific format>
   
   ## Arguments
   
   - No arguments: <default behavior>
   - `$ARGUMENTS`: <behavior with arguments>
   
   ## Notes
   
   - <important constraint 1>
   - <important constraint 2>
   

4. Write the skill to .claude/skills/<skill-name>/SKILL.md

5. Report what was created:

   Created: .claude/skills/<skill-name>/SKILL.md
   Trigger: /<skill-name>
   Description: <what it does>
   

Guidelines

• Context efficiency: Keep skills under 100 lines. The context window is a shared resource.
• Model selection: Use haiku for simple tasks (build, test, file checks). Use sonnet for tasks requiring analysis (review, planning).
• Tool minimization: Only include tools the skill actually needs in allowed-tools.
• No side effects: Skills should report findings — not silently make changes unless that's their explicit purpose.
• Follow conventions: Match the tone and format of existing skills in the project.