edt-mcp-new-tool

Canonical, battle-tested checklist for adding a new MCP tool to the EDT-MCP plugin the right way — the IMcpTool surface, shared resolvers, schema, registration, MANIFEST, the two MANDATORY test ratchets (unit + e2e), the golden snapshot, README, and the full compile→review→redeploy→live contour. Use when asked to add / create / scaffold a new MCP tool / EDT tool.