What is Atomic Writer MCP Server?
A secure and atomic file operation service implemented as an MCP (Model Context Protocol) server. It provides safe, transactional file operations through the MCP protocol, designed to prevent accidental data loss when AI or other systems modify files.
How to use Atomic Writer MCP Server?
Clone the repository, run npm install then npm run build. Configure the server in your MCP host’s configuration (e.g., claude_desktop_config.json) with node build/index.js <base directory path>. Optionally set the BASE_DIR environment variable. The server exposes multiple MCP tools for file and text operations.
Key features of Atomic Writer MCP Server
- Atomic and journaled file operations
- File integrity verification via checksums
- Automatic backup before any modification
- Safe deletion with a trash directory
- Lock management to prevent conflicts
- Operation rollback capability
- Automatic tracking of externally created files
Use cases of Atomic Writer MCP Server
- AI integrations that need to modify files safely
- Collaborative editing systems requiring data integrity
- Critical data management where data loss is unacceptable
- Any application preventing accidental data loss
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