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File System · Security

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filesys

gomcpgo/filesys

A secure, single-binary MCP server for filesystem operations. No runtime dependencies — download, configure allowed directories, and connect to any MCP client.

View on GitHub1

Install

Client configuration

{
  "mcpServers": {
    "filesystem": {
      "command": "/path/to/filesystem-mcp-darwin-arm64",
      "env": {
        "MCP_ALLOWED_DIRS": "<MCP_ALLOWED_DIRS>"
      }
    }
  }
}

Environment variables

MCP_ALLOWED_DIRS
GitHub stars
1
Author
@gomcpgo
Category
File System, Security
License
MIT
Updated
Oct 6, 2026

About filesys

Tested extensively with Claude Desktop and Claude Code across real-world coding workflows including file editing, codebase search, refactoring, and multi-file batch operations.

Tools (16)

  • read_file

    Read a single file, with optional start_line/end_line for partial reads

  • read_multiple_files

    Read multiple files simultaneously in one call

  • search_in_files

    Recursive regex search across files.

  • write_file

    Create or overwrite a file.

  • append_to_file

    Add content to end of file.

  • prepend_to_file

    Add content to beginning of file.

  • replace_in_file

    Replace exact string occurrences in a file.

  • replace_in_file_regex

    Replace regex pattern matches with capture group support ($1, $2).

  • replace_in_files

    Batch replace a string across multiple files.

  • insert_after_regex

    Insert content after a regex pattern match.

  • insert_before_regex

    Insert content before a regex pattern match.

  • copy_lines

    Copy a line range from source to destination file directly on disk (no context overhead).

  • create_directory

    Create directory and parents (idempotent)

  • list_allowed_directories

    Show accessible directories

  • move_file

    Move or rename files and directories

  • get_file_info

    Get file metadata (size, permissions, modification time)

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

View all
Claude Desktop logo

Claude Desktop

Desktop · Freemium · Proprietary

Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.

WindowsMacOS

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