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Skill Creator

Guide for creating effective skills that extend Claude's capabilities

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WhatIsIt

A comprehensive guide for creating effective Claude skills that extend Claude's capabilities with specialized knowledge, workflows, and tool integrations. Skills are modular, self-contained packages that transform Claude from a general-purpose agent into a specialized agent equipped with domain-specific procedural knowledge. This skill provides the framework, best practices, and tooling for building professional skills.

HowToUse

Skill creation follows a systematic six-step process:

Step 1: Understanding with Concrete Examples

  • Gather examples of how the skill will be used
  • Ask clarifying questions about functionality and trigger phrases
  • Build clear understanding before implementation

Step 2: Planning Reusable Contents

  • Analyze examples to identify reusable resources
  • Determine what scripts, references, and assets are needed
  • Plan the skill's structure

Step 3: Initialize the Skill

  • Run scripts/init_skill.py <skill-name> --path <output-directory>
  • Generate template with proper frontmatter and resource directories

Step 4: Edit the Skill

  • Create scripts/ (executable code for deterministic tasks)
  • Create references/ (documentation loaded as needed)
  • Create assets/ (files used in output)
  • Write SKILL.md using imperative/infinitive form

Step 5: Package the Skill

  • Run scripts/package_skill.py <path/to/skill-folder>
  • Automatic validation of structure and content
  • Creates distributable zip file

Step 6: Iterate

  • Test skill on real tasks
  • Notice struggles and inefficiencies
  • Update and improve

KeyFeatures

  • Progressive disclosure design - Three-level loading system (metadata, SKILL.md, bundled resources)
  • Automatic skill initialization with proper structure
  • Scripts directory for deterministic, token-efficient executable code
  • References directory for on-demand documentation loading
  • Assets directory for output resources (templates, fonts, images)
  • Automatic validation during packaging (frontmatter, naming, structure)
  • Distributable zip file creation
  • Best practices for effective skill design and iteration
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5.3k
Forks
408
LastUpdate
Jan 15, 2025

Information

Author
Anthropic
License
Apache-2.0
Version
1.0.0

Categories

Meta

Tags

skill-development
guides
documentation

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