fix(protocol): expose MCP tool change events (#35373)

packages/schema/src/event-manifest.ts

@@ -78,7 +78,7 @@ export const ServerDefinitions = Event.inventory(
   ...TuiEvent.Definitions,
   ...InstallationEvent.Definitions,
   ...VcsEvent.Definitions,
-  McpEvent.StatusChanged,
+  ...McpEvent.Definitions,
   // Shared transitional: V1 contracts the current TUI still consumes during
   // the migration (permission.asked/replied, question.asked, session.error).
   // Remove when the TUI moves to the current permission/question surfaces.

packages/schema/test/event-manifest.test.ts

@@ -27,6 +27,7 @@ describe("public event manifest", () => {
       Agent.Event.Updated,
     ])
     expect(EventManifest.Definitions).toContain(Agent.Event.Updated)
+    expect(EventManifest.ServerDefinitions).toContain(McpEvent.ToolsChanged)
     expect(EventManifest.Definitions.filter((definition) => definition.type === "agent.updated")).toEqual([
       Agent.Event.Updated,
     ])