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castellan mcp

MCP stdio JSON-RPC server exposing stigmergy and harness tools from the shared registry.

Usage

castellan mcp

Methods: initialize, tools/list, tools/call. Same registry as castellan run --mcp live episodes.

Recipes

List tools (stdio):

echo '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | castellan mcp

Discovery flow:

printf '%s\n' \
  '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}' \
  '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"castellan_search_tools","arguments":{"query":"deposit"}}}' \
  | castellan mcp

Wire Cursor: see Cursor setup.