Offers tools to find and extract JavaScript code blocks by symbol name and import/inspect JavaScript modules and their properties.
Enables inspection of Lodash modules and properties through the import_symbol tool, allowing AI agents to analyze and utilize Lodash functionality.
Built for Node.js environment, providing programmatic file operations, module inspection, and OS notifications that leverage Node.js capabilities.
Provides tools for finding and extracting TypeScript code blocks by symbol name and importing/inspecting TypeScript modules and their properties.
MCP Tools
Enables agents to quickly find and edit code in a codebase with surgical precision. Find symbols, edit them everywhere.
📋 Table of Contents
- 🚀 Quick Start
- 🛠️ Available Tools
- ⚡ Surgical Code Editing: Surgical Precision
- 🎛️ Environment Variables
- 🖥️ Server Usage
- 💻 CLI Usage
- 🏗️ Architecture
- 🧪 Development
- 🛠️ Troubleshooting
- 📝 License
- 🔗 Links
🚀 Quick Start
Option 1: NPX (Recommended)
Add this to ~/.cursor/mcp.json
for Cursor, ~/.config/claude_desktop_config.json
for Claude Desktop.
Option 2: Docker
Option 3: HTTP transport
First run the server:
Then:
🛠️ Available Tools
Tool | Description | Parameters |
---|---|---|
read_symbol | Find and extract code blocks by symbol name from files | symbol , file_paths[]? , limit? |
import_symbol | Import and inspect JavaScript/TypeScript modules and their properties | module_path , property? |
search_replace | Search and replace with intelligent whitespace handling and automation-friendly multiple match resolution | file_path , old_string , new_string , allow_multiple_matches? |
insert_text | Insert/replace text at precise line ranges. Perfect for direct line operations from code citations (12:15.ts) and surgical edits in large files | file_path , from_line , text , to_line |
os_notification | Send OS notifications using native notification systems | message , title? |
⚡ Surgical Code Editing: Surgical Precision
The combination of read_symbol
+ insert_text
unlocks revolutionary code editing capabilities that transform how AI agents work with codebases.
🎯 The Power Combo
1. Symbol Discovery (read_symbol
) - Find ANY symbol ANYWHERE in your codebase:
2. Surgical Editing (insert_text
) - Make precise modifications using exact line ranges:
🚀 Superpowers Unlocked
🔍 Cross-Codebase Intelligence
- Find any symbol across entire repositories instantly
- No manual searching through files and folders
- Perfect accuracy even in massive codebases
✂️ Precision Surgery
- Edit exact functions, classes, or code blocks
- Replace implementations without affecting surrounding code
- Insert enhancements at perfect locations
🎛️ Zero-Error Refactoring
- Update function signatures everywhere they exist
- Modify APIs across all files simultaneously
- Fix bugs with surgical precision across entire codebase
💡 Real-World Magic
This transforms AI from "helpful assistant" to "surgical code surgeon" 🦾
🎛️ Environment Variables
Variable | Default | Description |
---|---|---|
TRANSPORT | stdio | Transport mode: stdio or http |
PORT | 4657 | HTTP server port (when TRANSPORT=http ) |
DEBUG | false | Enable debug mode and utils_debug tool |
🖥️ Server Usage
You can either install and use mcp-files
or npx mcp-files
.
💻 CLI Usage
All tools can be used directly from the command line:
🏗️ Architecture
- Type-safe tools with Zod validation
- Self-contained modules in
src/tools/
- Cross-platform support (Linux, macOS, Windows, WSL)
- Performance optimized with memoization
- Clear error handling with descriptive messages
🧪 Development
🛠️ Troubleshooting
Requirements
- Node.js ≥20 - This package requires Node.js version 20 or higher
Common Issues
ERR_MODULE_NOT_FOUND when running npx mcp-files
- Problem: Error like
Cannot find module '@modelcontextprotocol/sdk/dist/esm/server/index.js'
when runningnpx mcp-files
- Cause: Corrupt or incomplete npx cache preventing proper dependency resolution
- Solution: Clear the npx cache and try again:
- Note: This issue can occur on both Node.js v20 and v22, and the cache clear resolves it
Tools not showing up in MCP client:
- Verify Node.js version is 20 or higher
- Try restarting your MCP client after configuration changes
File operations failing:
- Ensure proper file permissions for the files you're trying to read/modify
- Use absolute paths when possible for better reliability
- Check that the target files exist and are accessible
📝 License
MIT - see LICENSE file.
🔗 Links
Built for AI agents 🤖
This server cannot be installed
hybrid server
The server is able to function both locally and remotely, depending on the configuration or use case.
A comprehensive MCP server providing tools for AI agents to interact with code, including reading symbols, importing modules, replacing text, and sending OS notifications.
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