mcpField
E
example-skill

example-skill

github.com/anthropicsAgent workflows45.1k202 installsUpdated 1d ago
Repository

About example-skill

example-skill is a reference skill for people creating or studying Claude Code plugin skills. It outlines skill files, activation descriptions, content structure, and development practices.

Key features

  1. 01Explains skill file structure
  2. 02Lists frontmatter fields
  3. 03Guides trigger description writing
  4. 04Outlines skill content guidance
  5. 05Lists skill development practices

Use cases

  1. 01Designing a plugin skill
  2. 02Checking skill files and layout
  3. 03Writing activation descriptions

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/anthropics/claude-plugins-official --skill example-skill

After installing, type/example-skillin Claude Code to confirm it loaded.

Details

From the project README

Example Skill

This skill demonstrates the structure and format for Claude Code plugin skills.

Overview

Skills are model-invoked capabilities that Claude autonomously uses based on task context. Unlike commands (user-invoked) or agents (spawned by Claude), skills provide contextual guidance that Claude incorporates into its responses.

When This Skill Applies

This skill activates when the user's request involves:

  • Creating or understanding plugin skills
  • Skill template or reference needs
  • Skill development patterns

Skill Structure

Required Files
skills/
└── skill-name/
    └── SKILL.md          # Main skill definition (required)
Optional Supporting Files
skills/
└── skill-name/
    ├── SKILL.md          # Main skill definition
    ├── README.md         # Additional documentation
    ├── references/       # Reference materials
    │   └── patterns.md
    ├── examples/         # Example files
    │   └── sample.md
    └── scripts/          # Helper scripts
        └── helper.sh

Frontmatter Options

Skills support these frontmatter fields:

  • name (required): Skill identifier
  • description (required): Trigger conditions - describe when Claude should use this skill
  • version (optional): Semantic version number
  • license (optional): License information or reference

Writing Effective Descriptions

The description field is crucial - it tells Claude when to invoke the skill.

Good description patterns:

description: This skill should be used when the user asks to "specific phrase", "another phrase", mentions "keyword", or discusses topic-area.

Include:

  • Specific trigger phrases users might say
  • Keywords that indicate relevance
  • Topic areas the skill covers

Skill Content Guidelines

  1. Clear purpose: State what the skill helps with
  2. When to use: Define activation conditions
  3. Structured guidance: Organize information logically
  4. Actionable instructions: Provide concrete steps
  5. Examples: Include practical examples when helpful

Best Practices

  • Keep skills focused on a single domain
  • Write descriptions that clearly indicate when to activate
  • Include reference materials in subdirectories for complex skills
  • Test that the skill activates for expected queries
  • Avoid overlap with other skills' trigger conditions

Comments

Markdown supported