The console lists and calls a role's tools

seat:<seat>.<verb> addresses a role's tool (with @<node> for a node-scoped seat); the listing asks the
mesh-controller seat's tools verb beside the modules and marks a role's tools; <seat>.<verb> resolves
to the seat when the seat declares that verb, a module's own name otherwise (novox/hq ADR 0154).

test/mcp.test.ts

@@ -28,9 +28,15 @@ async function aMeshAndACredential(t: { after: (fn: () => Promise<void> | void)
     tools: [{ name: "price", description: "what something costs", input: { of: { type: "string" } } }],
   }));
   await shop.handle("price", async (body: { of?: string }) => ({ of: body.of ?? "nothing", cost: 12 }));
+  const controller = await connectNats({ url: url!, module: "mesh-controller" });
+  await controller.handle("seat:mesh-controller.tools", async () => ({
+    seats: [{ seat: "mesh-controller", scope: "mesh", tools: [{ name: "status", description: "what is wrong", input: {} }] }],
+  }));
+  await controller.handle("seat:mesh-controller.status", async () => ({ output: "all quiet", ok: true }));
   t.after(async () => {
     await catalogue.close();
     await shop.close();
+    await controller.close();
   });
 
   const { mkdtemp, writeFile } = await import("node:fs/promises");
@@ -89,11 +95,12 @@ test("a host initialises, lists the mesh's tools and calls one", async (t) => {
   assert.match(hello.instructions, /ada/, "the handshake says whose authority a call is made under");
 
   const listed = byId.get(2)!.result.tools;
-  assert.equal(listed.length, 1);
-  assert.equal(listed[0].name, "shop.price", "a tool is named the way a person names it");
-  assert.ok(listed[0].inputSchema, "a tool with no schema is one an agent cannot call");
+  assert.deepEqual(listed.map((x: { name: string }) => x.name), ["mesh-controller.status", "shop.price"],
+    "the modules' tools and the roles', named the way a person names them");
+  const price = listed[1];
+  assert.ok(price.inputSchema, "a tool with no schema is one an agent cannot call");
   // A module's bare property map arrives as a schema an agent can read, its words kept.
-  assert.deepEqual(listed[0].inputSchema, { type: "object", properties: { of: { type: "string" } } });
+  assert.deepEqual(price.inputSchema, { type: "object", properties: { of: { type: "string" } } });
   // Silence is named: the module the catalogue holds and nothing answered for.
   assert.deepEqual(byId.get(2)!.result._meta.notAnswering, ["ghost"]);
 
@@ -130,3 +137,14 @@ test("a method this surface does not have is refused, and a notification is not"
   assert.equal(replies[0].error.code, -32601);
   assert.match(replies[0].error.message, /resources\/list/);
 });
+
+test("a host calls the mesh's own verb through the seat", async (t) => {
+  if (!url) return t.skip("MESH_TEST_NATS unset");
+  const credential = await aMeshAndACredential(t);
+  const replies = await driving(credential, [
+    { jsonrpc: "2.0", id: 1, method: "tools/call", params: { name: "mesh-controller.status", arguments: {} } },
+  ]);
+  const result = replies[0].result;
+  assert.ok(!result.isError, JSON.stringify(replies[0]));
+  assert.deepEqual(JSON.parse(result.content[0].text), { output: "all quiet", ok: true });
+});