Requires the runtime declared in the upstream repo — check the README before running. Claude Code persists MCP servers via its CLI — no config file to edit, just run the command below once. Paste the config below, then follow the reload step to register efforthye/fast-filesystem-mcp.
Run the command below in your terminal — Claude Code persists it for you.claude mcp add fast-filesystem -- npx -y fast-filesystem-mcp