fix: make chat honest about live replay status

web/apps/console/src/demo/agent/timelineAgent.test.tsx

@@ -2,8 +2,29 @@ import { act, renderHook } from "@testing-library/react";
 import { describe, expect, it, vi } from "vitest";
 import type { DemoTimelineController } from "../useDemoTimeline.js";
 import { initialDemoTimelineState } from "../timeline/reducer.js";
+import type { PresentationTargetHealth } from "../../presentation/presentation-target-status.js";
 import { useTimelineAgent } from "./timelineAgent.js";
 
+const readyStatus: PresentationTargetHealth = {
+  kind: "ready",
+  target: "http://127.0.0.1:8765/rpc",
+  label: "Live target ready",
+  detail: "127.0.0.1:8765",
+};
+
+const replayStatus: PresentationTargetHealth = {
+  kind: "replay",
+  label: "Replay evidence",
+  detail: "reviewed recording",
+};
+
+const failedStatus: PresentationTargetHealth = {
+  kind: "failed",
+  target: "http://127.0.0.1:8765/rpc",
+  label: "Replay fallback",
+  detail: "connection refused",
+};
+
 const demoController = (
   overrides: Partial<DemoTimelineController> = {},
 ): DemoTimelineController => ({
@@ -32,7 +53,7 @@ describe("useTimelineAgent", () => {
     const start = vi.fn();
     const demo = demoController({ start });
 
-    const { result } = renderHook(() => useTimelineAgent(demo, "live"));
+    const { result } = renderHook(() => useTimelineAgent(demo, { mode: "live", status: readyStatus }));
     await act(async () => result.current.runPreparedWorkflow());
 
     expect(start).toHaveBeenCalledWith("live");
@@ -47,7 +68,7 @@ describe("useTimelineAgent", () => {
     const start = vi.fn();
     const demo = demoController({ start });
 
-    const { result } = renderHook(() => useTimelineAgent(demo, "replay"));
+    const { result } = renderHook(() => useTimelineAgent(demo, { mode: "replay", status: replayStatus }));
     await act(async () => result.current.runPreparedWorkflow());
 
     expect(start).toHaveBeenCalledWith("replay");
@@ -66,7 +87,7 @@ describe("useTimelineAgent", () => {
       submitSelectedIssues,
     });
 
-    const { result } = renderHook(() => useTimelineAgent(demo, "replay"));
+    const { result } = renderHook(() => useTimelineAgent(demo, { mode: "replay", status: replayStatus }));
     await act(async () => result.current.submitSelectedIssues());
 
     expect(submitSelectedIssues).toHaveBeenCalledWith(["risk-1"], "Create the selected issue.");
@@ -79,7 +100,7 @@ describe("useTimelineAgent", () => {
       cancelReview,
     });
 
-    const { result } = renderHook(() => useTimelineAgent(demo, "live"));
+    const { result } = renderHook(() => useTimelineAgent(demo, { mode: "live", status: readyStatus }));
     await act(async () => result.current.cancelReview());
 
     expect(cancelReview).toHaveBeenCalledWith("Cancelled by operator.");
@@ -87,7 +108,7 @@ describe("useTimelineAgent", () => {
 
   it("disables run when the timeline cannot start", () => {
     const demo = demoController({ canStart: false });
-    const { result } = renderHook(() => useTimelineAgent(demo, "live"));
+    const { result } = renderHook(() => useTimelineAgent(demo, { mode: "live", status: readyStatus }));
     expect(result.current.canRun).toBe(false);
   });
 
@@ -100,7 +121,7 @@ describe("useTimelineAgent", () => {
       next,
     });
 
-    const { result } = renderHook(() => useTimelineAgent(demo, "replay"));
+    const { result } = renderHook(() => useTimelineAgent(demo, { mode: "replay", status: replayStatus }));
     await act(async () => result.current.cancelReview());
 
     expect(cancelReview).toHaveBeenCalledWith("Cancelled by operator.");
@@ -111,4 +132,18 @@ describe("useTimelineAgent", () => {
       ]),
     );
   });
+
+  it("uses replay label when live target failed", () => {
+    const demo = demoController();
+    const { result } = renderHook(() =>
+      useTimelineAgent(demo, { mode: "live", status: failedStatus }),
+    );
+
+    expect(result.current.runLabel).toBe("Run replay walkthrough");
+    expect(result.current.messages[0]?.parts).toEqual(
+      expect.arrayContaining([
+        expect.objectContaining({ text: expect.stringMatching(/Replay fallback/i) }),
+      ]),
+    );
+  });
 });

web/apps/console/src/demo/agent/timelineAgent.ts

@@ -1,5 +1,6 @@
 import { useCallback, useMemo, useState } from "react";
 import type { DemoTimelineController } from "../useDemoTimeline.js";
+import type { PresentationTargetHealth } from "../../presentation/presentation-target-status.js";
 import {
   agentTextMessage,
   agentToolCallPart,
@@ -10,6 +11,11 @@ import type { AgentToolName } from "./tools.js";
 
 export type TimelineAgentMode = "live" | "replay";
 
+export type TimelineAgentOptions = {
+  readonly mode: TimelineAgentMode;
+  readonly status: PresentationTargetHealth;
+};
+
 export type TimelineAgentController = {
   readonly messages: ReadonlyArray<AgentMessage>;
   readonly canRun: boolean;
@@ -39,17 +45,33 @@ const appendToolMessage = (
   },
 ];
 
+const introForStatus = (status: PresentationTargetHealth): string => {
+  switch (status.kind) {
+    case "ready":
+      return "Live target is ready. Direct slides still show replay evidence until I start the live run.";
+    case "active":
+      return "Live run is active. Operations are being sent to the workflow server.";
+    case "failed":
+      return "Replay fallback is active because the live target is unavailable.";
+    default:
+      return "Replay evidence is active. I can walk through the reviewed recording.";
+  }
+};
+
 export const useTimelineAgent = (
   demo: DemoTimelineController,
-  modeLabel: TimelineAgentMode,
+  options: TimelineAgentOptions,
 ): TimelineAgentController => {
+  const modeLabel: TimelineAgentMode =
+    options.status.kind === "ready" || options.status.kind === "active"
+      ? options.mode
+      : "replay";
+
   const [messages, setMessages] = useState<ReadonlyArray<AgentMessage>>([
     agentTextMessage(
       "timeline-agent-intro",
       "assistant",
-      modeLabel === "live"
-        ? "Live workflow target is configured. I can run the prepared workflow now."
-        : "Replay fallback is active. I can still walk through the prepared workflow evidence.",
+      introForStatus(options.status),
     ),
   ]);
 
@@ -88,8 +110,6 @@ export const useTimelineAgent = (
 
   const cancelReview = useCallback(async () => {
     await demo.cancelReview("Cancelled by operator.");
-    // In replay the canonical recording only contains the submitted branch.
-    // Do not call next() or the UI would falsely advance into submitted evidence.
     if (demo.state.mode === "live") {
       await demo.next();
     }
@@ -110,4 +130,4 @@ export const useTimelineAgent = (
     submitSelectedIssues,
     cancelReview,
   };
-};
+};