The proof, again
Eleven typed tools over one shared service layer: four that read, two that analyse, and five that write. The writing ones are not special-cased — they call the same functions this page of the interface calls, which is the only way “the agent and the app agree” stays true as both change.
Opening the console…
JSON-RPC 2.0 over HTTP POST. Point an MCP client at this URL; the manifest at /mcp.json has the live address and the tool names.
POST /api/mcp
Discovering tools…
Each button sends exactly the JSON an agent would send. The request and the server's real reply are both kept in the log below.
These write through the same service layer the interface uses. Press record twice: the idempotency key means one line is written, not two.
Nothing yet. The handshake that discovered the tools is logged too.