Claude Agent Skills — Development skill for Claude Code

Claude Agent Skills

Repository for Anthropic Claude Skills examples demonstrating how to use Claude's Skills API with both **default skills** (document generation) and **custom skills** (extensible functionality).

Overview

This project provides two categories of examples:

Default Anthropic Skills (Document Generation)

Python examples for using Anthropic's built-in Skills API to programmatically generate various document types:

• 📊 Excel (xlsx) - Spreadsheets, data tables, charts
• 📽️ PowerPoint (pptx) - Presentations, slides
• 📄 PDF - Documents, forms, reports
• 📝 Word (docx) - Documents, letters, proposals

Custom Skills Framework

A flexible framework for creating and running your own custom skills:

• 🔧 Extensible Architecture - Create custom skills with simple markdown instructions
• 🤖 Intelligent Selection - Claude automatically chooses the right skill for the task
• 🔍 Git Analyzer - Example custom skill for analyzing Git repositories
• 🛠️ Tool Integration - Uses bash tool execution for maximum flexibility

Prerequisites

Required

1. **Anthropic API Key** (required for all examples)

   • Visit console.anthropic.com
   • Create an account or log in
   • Navigate to "API Keys" section
   • Generate a new API key
   • Ensure your account has access to Skills beta features
   • Note: This is separate from Claude Code/Cline subscriptions

2. **Python 3.7+**

Important Note About Claude Code Pro

Having a Claude Code Pro subscription does **NOT** provide access to the Anthropic Skills API. These are separate services:

• Claude Code Pro = VS Code extension subscription (interactive development)
• Anthropic API Key = Programmatic API access (separate service, separate billing)

You need an Anthropic API key to run the code in this repository, regardless of your Claude Code subscription.

Installation

1. Clone the repository

   git clone