jac mcp for Claude Code

io.github.mrfentmen/jac-mcp

Jac MCP: 20 real tools to read, check, lint, scaffold, build and run Jac code.

client:Claude Code transport:stdio runtime:npm

Install jac mcp in Claude Code

run in your project directory

claude mcp add jac-mcp -- npx -y @mrfentmen/jac-mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs