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Chapters

1Claude API Prompt Caching: Cut Input Costs by 90%2Claude API Tool Use: Connecting the Model to the Outside World 3Claude Code Tool System: All 39 Built-in Tools Explained

目录

The Big Picture: 39 Tools in 7 Categories The File System Quartet Read: Far More Than "Read a File"Write: Mandatory "Read Before Write"Edit: Surgical Precision Glob: Pattern-Based File Discovery The Search Duo Grep: ripgrep-Powered Content Search LSP: Semantic Code Understanding Shell Execution Bash: The Most Powerful and "Dangerous" Tool PowerShell: Windows as a First-Class Citizen Network Access WebFetch: Web Scraping with an AI Distillation Layer WebSearch: Real-Time Information Retrieval Developer Extension Tools MCP: The Infinitely Extensible Plugin System ListMcpResources / ReadMcpResource: Resource Management McpAuth: OAuth Authentication Flow NotebookEdit: Jupyter Notebook Precision Editing Design Philosophy: Four Recurring Principles Tool Specialization with No Crossover Mandatory Read-Before-Write Security Code Dwarfs Feature Code Token Economy as a First-Class Concern Part 2 Preview

Tutorials Claude Developer Guide第 3 章

ClaudeAgent

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Claude Code Tool System: All 39 Built-in Tools Explained

2026-05-02 · 9 min readauthor: admin

Claude Code Tool System: All 39 Built-in Tools Explained

Chapters

1Claude API Prompt Caching: Cut Input Costs by 90%2Claude API Tool Use: Connecting the Model to the Outside World 3Claude Code Tool System: All 39 Built-in Tools Explained

上一章Claude API Tool Use: Connecting the Model to the Outside World

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