SKILLS
by Anthropic
Reusable Skills system for Claude and Claude Code that packages task-specific instructions, resources, and scripts in SKILL.md-based folders.
Claude Skills, also described by Anthropic sources as Agent Skills, are reusable filesystem-based resources for giving Claude specialized workflows, context, and best practices. The supplied Anthropic and Claude documentation describes skills as directories or folders containing a SKILL.md file plus optional supporting resources and scripts that Claude can load when relevant. Sources describe use across Claude apps, Claude Code, the API, Claude.ai, the Claude Agent SDK, and the Claude Developer Platform. Anthropic’s public GitHub repository provides examples, an Agent Skills specification, a template, and document-oriented skills for docx, pdf, pptx, and xlsx workflows.
Use when you want reusable task-specific instructions for Claude or Claude Code instead of relying on one-off prompts. Use when a workflow needs documented procedures packaged with supporting resources or scripts in a filesystem folder. Use when teams want to standardize domain-specific workflows context or best practices for Claude across supported Anthropic products.
Last updated Jul 21, 2026