Revert "Forward live usage stream events"

This reverts commit 4779757138.

packages/protocol/src/messages.stream-parsing.test.ts

@@ -160,45 +160,6 @@ describe("shared messages stream parsing", () => {
     }
   });
 
-  it("parses agent_stream usage_updated events", () => {
-    const fixture = {
-      type: "agent_stream",
-      payload: {
-        agentId: "agent_live",
-        timestamp: "2026-02-08T20:10:00.000Z",
-        event: {
-          type: "usage_updated",
-          provider: "claude",
-          turnId: "foreground-turn-1",
-          usage: {
-            contextWindowUsedTokens: 24_074,
-            contextWindowMaxTokens: 200_000,
-          },
-        },
-      },
-    };
-
-    const parsed = AgentStreamMessageSchema.parse(fixture);
-    expect(parsed.payload.event).toEqual({
-      type: "usage_updated",
-      provider: "claude",
-      turnId: "foreground-turn-1",
-      usage: {
-        contextWindowUsedTokens: 24_074,
-        contextWindowMaxTokens: 200_000,
-      },
-    });
-
-    const wrapped = WSOutboundMessageSchema.parse({
-      type: "session",
-      message: fixture,
-    });
-    expect(wrapped.message.type).toBe("agent_stream");
-    if (wrapped.message.type === "agent_stream") {
-      expect(wrapped.message.payload.event.type).toBe("usage_updated");
-    }
-  });
-
   it("parses representative sub_agent tool_call event", () => {
     const parsed = AgentStreamMessageSchema.parse({
       type: "agent_stream",

packages/protocol/src/messages.ts

@@ -594,19 +594,11 @@ export const AgentStreamEventPayloadSchema = z.discriminatedUnion("type", [
   z.object({
     type: z.literal("turn_started"),
     provider: AgentProviderSchema,
-    turnId: z.string().optional(),
   }),
   z.object({
     type: z.literal("turn_completed"),
     provider: AgentProviderSchema,
     usage: AgentUsageSchema.optional(),
-    turnId: z.string().optional(),
-  }),
-  z.object({
-    type: z.literal("usage_updated"),
-    provider: AgentProviderSchema,
-    usage: AgentUsageSchema,
-    turnId: z.string().optional(),
   }),
   z.object({
     type: z.literal("turn_failed"),
@@ -614,32 +606,27 @@ export const AgentStreamEventPayloadSchema = z.discriminatedUnion("type", [
     error: z.string(),
     code: z.string().optional(),
     diagnostic: z.string().optional(),
-    turnId: z.string().optional(),
   }),
   z.object({
     type: z.literal("turn_canceled"),
     provider: AgentProviderSchema,
     reason: z.string(),
-    turnId: z.string().optional(),
   }),
   z.object({
     type: z.literal("timeline"),
     provider: AgentProviderSchema,
     item: AgentTimelineItemPayloadSchema,
-    turnId: z.string().optional(),
   }),
   z.object({
     type: z.literal("permission_requested"),
     provider: AgentProviderSchema,
     request: AgentPermissionRequestPayloadSchema,
-    turnId: z.string().optional(),
   }),
   z.object({
     type: z.literal("permission_resolved"),
     provider: AgentProviderSchema,
     requestId: z.string(),
     resolution: AgentPermissionResponseSchema,
-    turnId: z.string().optional(),
   }),
   z.object({
     type: z.literal("attention_required"),