Filesystem MCP Server - MCP Servers

1. Create a .mcp.json file in your project root directory
2. Add the Filesystem server configuration with your allowed directory path (use absolute path)
3. Verify installation: claude mcp list
4. Test connection: claude mcp status filesystem

1. Open your Claude Desktop configuration file (see configPath below)
2. Add the Filesystem MCP server configuration with your allowed directory path (use absolute path)
3. Restart Claude Desktop
4. Verify the connection by asking Claude to list files in the allowed directory

Access configuration files to understand project setup, dependencies, and build configurations. Claude can analyze and suggest optimizations.

// Read package.json and analyze dependencies
"Show me the contents of package.json and explain the dependencies"

// Read TypeScript config
"Read tsconfig.json and suggest improvements for a Next.js project"

Generate new files and directory structures. Perfect for scaffolding components, modules, or configuration files.

// Create a new React component
"Create src/components/Button.tsx with a reusable Button component using TypeScript"

// Create multiple related files
"Set up a new feature module:
- Create src/features/auth/
- Add index.ts, types.ts, and hooks.ts files"

Search through your codebase for patterns, imports, comments, or specific code structures. Essential for code reviews and refactoring.

// Find specific patterns
"Find all TypeScript files in src/ that use useState"

// Search for TODOs and FIXMEs
"List all files containing TODO or FIXME comments"

// Analyze imports
"Show me all files that import from 'react-query'"

Work with multiple files simultaneously. Perfect for refactoring, updating configurations, or analyzing project architecture.

// Update multiple related files
"Update all API client files in src/api/ to use the new authentication header"

// Read project structure
"Show me the directory structure of src/ and list all component files"

Set up project configuration files, environment templates, and development tools. Claude can generate properly structured config files.

// Initialize new configuration
"Create .env.example file with all required environment variables from the codebase"

// Setup linting
"Create .eslintrc.json with React and TypeScript rules"

Perform large-scale code migrations and refactoring operations. The filesystem server handles file moves and updates safely.

// Migrate file structure
"Move all files from src/old-components/ to src/components/ and update all imports"

// Refactor code style
"Convert all CommonJS requires in src/ to ES6 imports"

Read a file, modify its content, and write it back to the filesystem

// Read and write file using filesystem MCP
const content = await filesystem.readFile({
  path: "/path/to/file.txt"
});
await filesystem.writeFile({
  path: "/path/to/output.txt",
  content: content + "\nModified by Claude"
});