PaperClipAI/ui/src/components/TaskChatThread.test.tsx

// @vitest-environment jsdom

import type { ComponentProps, ReactElement } from "react";
import { act, forwardRef, useImperativeHandle, type ForwardedRef } from "react";
import { flushSync } from "react-dom";
import { createRoot, type Root } from "react-dom/client";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import { ThemeProvider } from "@/context/ThemeContext";
import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
import { TaskChatThread } from "./TaskChatThread";
import type {
  IssueDocument,
  IssueQueuedCommentQueue,
  IssueThreadInteraction,
} from "@paperclipai/shared";
import { heartbeatsApi } from "@/api/heartbeats";
import { nativeRunEventsToTranscript } from "./transcript/native-run-events";
import type { HeartbeatRunEvent } from "@paperclipai/shared";

const transcriptState = vi.hoisted(() => ({
  transcriptByRun: new Map(),
  isInitialHydrating: false,
  hydratedRunIds: undefined as Set<string> | undefined,
}));
const nativeTranscriptState = vi.hoisted(() => ({
  transcriptByRun: new Map(),
  errorsByRun: new Map(),
  hydratedRunIds: undefined as Set<string> | undefined,
}));
const transcriptHookRuns = vi.hoisted(() => ({
  legacy: [] as unknown[][],
  native: [] as unknown[][],
}));
const sidebarState = vi.hoisted(() => ({ isMobile: false }));
const planState = vi.hoisted(() => ({ data: null as IssueDocument | null }));
const DIRECT_ADAPTER_TYPES = [
  "codex_local",
  "claude_local",
  "opencode_local",
  "process",
  "http",
  "custom_plugin",
] as const;
const streamlinedState = vi.hoisted(() => ({ enabled: true }));

vi.mock("@/components/transcript/useLiveRunTranscripts", () => ({
  useLiveRunTranscripts: ({ runs }: { runs: unknown[] }) => {
    transcriptHookRuns.legacy.push(runs);
    return {
      transcriptByRun: new Map(transcriptState.transcriptByRun),
      isInitialHydrating: transcriptState.isInitialHydrating,
      hydratedRunIds: transcriptState.hydratedRunIds,
    };
  },
}));
vi.mock("@/components/transcript/useNativeRunTranscripts", () => ({
  useNativeRunTranscripts: (runs: unknown[]) => {
    transcriptHookRuns.native.push(runs);
    return {
      transcriptByRun: new Map(nativeTranscriptState.transcriptByRun),
      errorsByRun: new Map(nativeTranscriptState.errorsByRun),
      hydratedRunIds: nativeTranscriptState.hydratedRunIds,
    };
  },
}));
vi.mock("@/context/SidebarContext", () => ({
  useSidebar: () => ({ isMobile: sidebarState.isMobile }),
}));
vi.mock("@/hooks/useIssuePlanDocument", () => ({
  useIssuePlanDocument: () => planState,
}));
vi.mock("@/hooks/useStreamlinedUiEnabled", () => ({
  useStreamlinedUiEnabled: () => ({
    enabled: streamlinedState.enabled,
    loaded: true,
  }),
}));
vi.mock("@/lib/router", () => ({
  Link: ({
    to,
    children,
    ...props
  }: {
    to: string;
    children: React.ReactNode;
  }) => (
    <a href={to} {...props}>
      {children}
    </a>
  ),
}));
vi.mock("@/components/MarkdownEditor", () => ({
  MarkdownEditor: forwardRef(function MockMarkdownEditor(
    { value }: { value: string },
    ref: ForwardedRef<unknown>,
  ) {
    useImperativeHandle(ref, () => ({
      insertMarkdown: () => {},
      focus: () => {},
    }));
    return <div data-testid="mock-editor">{value}</div>;
  }),
}));

let container: HTMLDivElement;
let root: Root | null = null;
let queryClient: QueryClient;

beforeEach(() => {
  localStorage.clear();
  transcriptState.transcriptByRun.clear();
  transcriptState.isInitialHydrating = false;
  transcriptState.hydratedRunIds = undefined;
  nativeTranscriptState.transcriptByRun.clear();
  nativeTranscriptState.errorsByRun.clear();
  nativeTranscriptState.hydratedRunIds = undefined;
  transcriptHookRuns.legacy.length = 0;
  transcriptHookRuns.native.length = 0;
  sidebarState.isMobile = false;
  planState.data = null;
  streamlinedState.enabled = true;
  container = document.createElement("div");
  document.body.appendChild(container);
  root = createRoot(container);
  queryClient = new QueryClient({
    defaultOptions: {
      queries: { retry: false },
      mutations: { retry: false },
    },
  });
});

afterEach(() => {
  flushSync(() => root?.unmount());
  queryClient.clear();
  root = null;
  container.remove();
  localStorage.clear();
  vi.restoreAllMocks();
});

function render(ui: ReactElement) {
  flushSync(() =>
    root!.render(
      <QueryClientProvider client={queryClient}>
        <ThemeProvider>{ui}</ThemeProvider>
      </QueryClientProvider>,
    ),
  );
}

it("coordinates first reveal while keeping the composer and visible history mounted through refresh", async () => {
  const props = {
    issueId: "coordinated-issue",
    comments: [],
    onAdd: async () => {},
  };
  render(<TaskChatThread {...props} initialHistoryPending />);
  const composer = container.querySelector('[data-testid="mock-editor"]');
  expect(composer).not.toBeNull();
  expect(container.querySelector('[aria-busy="true"]')).not.toBeNull();
  render(<TaskChatThread {...props} initialHistoryPending={false} />);
  await act(async () => {
    await new Promise((resolve) => requestAnimationFrame(resolve));
  });
  expect(container.querySelector('[aria-busy="false"]')).not.toBeNull();
  expect(container.querySelector('[data-testid="mock-editor"]')).toBe(composer);
  render(<TaskChatThread {...props} initialHistoryPending />);
  expect(
    container.querySelector('[data-testid="task-chat-history-loading"]'),
  ).toBeNull();
  expect(container.querySelector('[data-testid="mock-editor"]')).toBe(composer);
});

describe.each(["legacy", "native"] as const)("%s task history readiness", (runtimeMode) => {
  const retryRun = {
    runId: "scheduled-run",
    runtimeMode,
    status: "scheduled_retry",
    agentId: "agent-1",
    adapterType: runtimeMode === "native" ? "paperclip_runner" : "codex_local",
    createdAt: "2026-08-25T18:00:00.000Z",
    startedAt: null,
  };

  beforeEach(() => {
    transcriptState.hydratedRunIds = new Set();
    nativeTranscriptState.hydratedRunIds = new Set();
  });

  it("reveals comments while a scheduled retry has no transcript to hydrate", () => {
    render(
      <TaskChatThread
        issueId="issue-1"
        comments={createLongThreadComments()}
        onAdd={async () => {}}
        linkedRuns={[retryRun]}
      />,
    );

    expect(container.querySelector('[aria-busy="false"]')).not.toBeNull();
    expect(
      container.querySelector('[data-testid="task-chat-history-loading"]'),
    ).toBeNull();
    expect(
      container.querySelector('[data-thread-anchor="comment-1"]')?.closest("[inert]"),
    ).toBeNull();
    expect(container.textContent).toContain("Thread message 1");
  });

  it.each(["running", "succeeded"])(
    "waits for a %s run to hydrate even when a scheduled retry is present",
    async (status) => {
      const props = {
        issueId: "issue-1",
        comments: createLongThreadComments(),
        onAdd: async () => {},
        linkedRuns: [
          retryRun,
          {
            ...retryRun,
            runId: "started-run",
            status,
            startedAt: "2026-08-25T18:00:00.000Z",
          },
        ],
      };
      render(<TaskChatThread {...props} />);
      expect(container.querySelector('[aria-busy="true"]')).not.toBeNull();
      expect(
        container.querySelector('[data-testid="task-chat-history-loading"]'),
      ).not.toBeNull();

      transcriptState.hydratedRunIds = new Set(["started-run"]);
      nativeTranscriptState.hydratedRunIds = new Set(["started-run"]);
      render(<TaskChatThread {...props} />);
      await act(async () => {
        await new Promise((resolve) => requestAnimationFrame(resolve));
      });

      expect(container.querySelector('[aria-busy="false"]')).not.toBeNull();
      expect(
        container.querySelector('[data-testid="task-chat-history-loading"]'),
      ).toBeNull();
    },
  );
});

it("preserves the typed disposition notice through the task-chat adapter", () => {
  render(<TaskChatThread comments={[{
    id: "typed-recovery", companyId: "company", issueId: "issue", authorType: "system", authorAgentId: null, authorUserId: null,
    body: "Unrelated prose", createdAt: new Date(), updatedAt: new Date(),
    presentation: { kind: "system_notice", title: "Different wording", tone: "warning", detailsDefaultOpen: false, density: "compact" },
    metadata: { version: 1, sections: [], recovery: { kind: "disposition_repair_escalated", actionId: "action", assigneeAgentId: "agent", attemptCount: 2, maxAttempts: 2, reason: "unchanged_source_state_exhausted" } },
  }]} onAdd={async () => {}} issueStatus="blocked" />);
  expect(container.querySelector('[data-testid="disposition-recovery-notice"]')).not.toBeNull();
  expect(container.textContent).toContain("Two automatic attempts");
  expect(container.textContent).not.toContain("Unrelated prose");
});

it("keeps an acknowledged optimistic bubble mounted with its canonical comment target", () => {
  const comment = {
    companyId: "company",
    issueId: "issue",
    authorAgentId: null,
    presentation: null,
    metadata: null,
    updatedAt: new Date("2026-09-09T12:00:00Z"),
    id: "optimistic-one",
    clientId: "optimistic-one",
    body: "Keep this message in place",
    authorType: "user" as const,
    authorUserId: "board",
    createdAt: new Date("2026-09-09T12:00:00Z"),
  };
  render(<TaskChatThread comments={[comment]} onAdd={async () => {}} />);
  const row = container.querySelector('[data-thread-anchor="optimistic-one"]');
  expect(row).not.toBeNull();
  render(
    <TaskChatThread
      comments={[{ ...comment, id: "canonical-one" }]}
      onAdd={async () => {}}
    />,
  );
  expect(container.querySelector('[data-thread-anchor="optimistic-one"]')).toBe(
    row,
  );
  expect(row?.id).toBe("comment-canonical-one");
  expect(
    container.textContent?.match(/Keep this message in place/g),
  ).toHaveLength(1);
});

function fakeScrollGeometry(
  element: HTMLElement,
  { scrollHeight = 1000, clientHeight = 400, scrollTop = 600 } = {},
) {
  let currentScrollTop = scrollTop;
  Object.defineProperty(element, "scrollHeight", {
    value: scrollHeight,
    configurable: true,
  });
  Object.defineProperty(element, "clientHeight", {
    value: clientHeight,
    configurable: true,
  });
  Object.defineProperty(element, "scrollTop", {
    get: () => currentScrollTop,
    set: (value: number) => {
      currentScrollTop = value;
    },
    configurable: true,
  });
}

function planDocument(overrides: Partial<IssueDocument> = {}): IssueDocument {
  return {
    id: "document-plan",
    companyId: "company-1",
    issueId: "issue-1",
    key: "plan",
    title: "Plan",
    format: "markdown",
    body: "# Preview the Plan\n- Reuse the review card.\n- Stream live steps.\n- Reconcile the revision.",
    latestRevisionId: "revision-3",
    latestRevisionNumber: 3,
    createdByAgentId: "agent-1",
    createdByUserId: null,
    updatedByAgentId: "agent-1",
    updatedByUserId: null,
    lockedAt: null,
    lockedByAgentId: null,
    lockedByUserId: null,
    createdAt: new Date("2026-08-23T10:00:00.000Z"),
    updatedAt: new Date("2026-08-23T10:01:00.000Z"),
    ...overrides,
  };
}

function planReviewInteraction(
  status: "pending" | "accepted" | "expired" = "pending",
  revisionId = "revision-3",
  sourceRunId: string | null = "run-plan",
): IssueThreadInteraction {
  const isResolved = status !== "pending";
  return {
    id: "plan-review",
    companyId: "company-1",
    issueId: "issue-1",
    kind: "request_confirmation",
    title: "Review the Plan",
    summary: null,
    status,
    continuationPolicy: "wake_assignee",
    resolverPolicy: "anyone",
    requestedResolverPolicy: "anyone",
    effectiveResolverPolicy: "anyone",
    resolverPolicyProvenance: "inherited",
    effectiveResolverPolicySource: "requested",
    legacyResolverPolicyAliases: {
      requested: "board_or_agents",
      effective: "board_or_agents",
    },
    createdByAgentId: "agent-1",
    createdByUserId: null,
    sourceRunId,
    resolvedByAgentId: null,
    resolvedByUserId: isResolved ? "user-1" : null,
    createdAt: new Date("2026-08-23T10:01:01.000Z"),
    updatedAt: new Date("2026-08-23T10:01:01.000Z"),
    resolvedAt: isResolved ? new Date("2026-08-23T10:02:00.000Z") : null,
    payload: {
      version: 1,
      prompt: "Approve this Plan?",
      target: {
        type: "issue_document",
        issueId: "issue-1",
        documentId: "document-plan",
        key: "plan",
        revisionId,
        revisionNumber: 3,
        label: "Plan revision 3",
      },
    },
    result:
      status === "accepted"
        ? { outcome: "accepted" }
        : status === "expired"
          ? {
              outcome: "superseded_by_comment",
              commentId: "follow-up-comment",
            }
          : null,
  } as IssueThreadInteraction;
}

function questionInteraction(
  id: string,
  prompt: string,
  createdAt: string,
): IssueThreadInteraction {
  return {
    id,
    companyId: "company-1",
    issueId: "issue-1",
    kind: "ask_user_questions",
    title: prompt,
    status: "pending",
    continuationPolicy: "wake_assignee",
    resolverPolicy: "anyone",
    requestedResolverPolicy: "anyone",
    effectiveResolverPolicy: "anyone",
    resolverPolicyProvenance: "inherited",
    effectiveResolverPolicySource: "requested",
    legacyResolverPolicyAliases: {
      requested: "board_or_agents",
      effective: "board_or_agents",
    },
    createdByAgentId: "agent-1",
    createdByUserId: null,
    resolvedByAgentId: null,
    resolvedByUserId: null,
    createdAt: new Date(createdAt),
    updatedAt: new Date(createdAt),
    resolvedAt: null,
    payload: {
      version: 1,
      questions: [
        {
          id: `${id}-question`,
          prompt,
          selectionMode: "single",
          required: true,
          options: [
            { id: "yes", label: "Yes" },
            { id: "no", label: "No" },
          ],
        },
      ],
    },
    result: null,
  } as IssueThreadInteraction;
}

function createLongThreadComments() {
  return Array.from({ length: 4 }, (_, index) => ({
    id: `comment-${index + 1}`,
    companyId: "company-1",
    issueId: "issue-1",
    authorType: "user" as const,
    authorAgentId: null,
    authorUserId: "user-1",
    body: `Thread message ${index + 1}`,
    presentation: null,
    metadata: null,
    createdAt: new Date(`2026-08-15T12:0${index}:00.000Z`),
    updatedAt: new Date(`2026-08-15T12:0${index}:00.000Z`),
  }));
}

describe("TaskChatThread draft pass-through", () => {
  it("aligns the desktop thread header with the side-panel tab row", () => {
    render(
      <TaskChatThread
        comments={[
          {
            id: "comment-1",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "user",
            authorAgentId: null,
            authorUserId: "user-1",
            body: "Header alignment fixture.",
            presentation: null,
            metadata: null,
            createdAt: new Date("2026-08-15T12:00:00.000Z"),
            updatedAt: new Date("2026-08-15T12:00:00.000Z"),
          },
        ]}
        onAdd={async () => {}}
      />,
    );

    const scroller = container.querySelector(
      '[data-testid="task-chat-scroller"]',
    );
    expect(scroller?.firstElementChild?.classList).toContain("pt-3");
  });

  it("lets the mobile composer dock use the full thread width", () => {
    render(
      <TaskChatThread
        comments={[
          {
            id: "comment-1",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "user",
            authorAgentId: null,
            authorUserId: "user-1",
            body: "Waiting for the dependency.",
            presentation: null,
            metadata: null,
            createdAt: new Date("2026-08-15T12:00:00.000Z"),
            updatedAt: new Date("2026-08-15T12:00:00.000Z"),
          },
        ]}
        onAdd={async () => {}}
      />,
    );

    const dock = container.querySelector(
      '[data-testid="task-chat-composer-dock"]',
    );
    const thread = container.querySelector('[data-testid="task-chat-thread"]');
    expect(thread?.classList).not.toContain("h-(--tc-thread-max-h)");
    expect(thread?.classList).toContain("flex-1");
    expect(dock?.classList).toContain("px-1");
    expect(dock?.classList).toContain("md:px-0");
    expect(dock?.classList).not.toContain("px-2");
    expect(dock?.classList).not.toContain("-mt-(--radius-task-composer)");
    expect(dock?.classList).not.toContain("pt-1");
    expect(dock?.classList).toContain("md:pb-0");
    expect(dock?.classList).not.toContain("md:pb-4");
    expect(dock?.classList).not.toContain("bg-background/80");
    expect(dock?.classList).not.toContain("backdrop-blur");
  });

  it("forwards draftKey so the composer restores a task's saved draft", () => {
    localStorage.setItem("task-chat-draft:issue-1", "half-written thought");

    render(
      <TaskChatThread
        comments={createLongThreadComments()}
        onAdd={async () => {}}
        draftKey="task-chat-draft:issue-1"
      />,
    );

    expect(
      container.querySelector('[data-testid="mock-editor"]')?.textContent,
    ).toBe("half-written thought");
  });

  it("forwards human profiles to the selected composer assignee", () => {
    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        enableReassign
        reassignOptions={[{ id: "user:user-1", label: "Riley Board" }]}
        currentAssigneeValue="user:user-1"
        userProfileMap={
          new Map([
            ["user-1", { label: "Riley Board", image: "/riley-avatar.png" }],
          ])
        }
      />,
    );

    expect(
      container.querySelector('[data-assignee-trigger-avatar="user-1"]'),
    ).not.toBeNull();
  });
});

describe("TaskChatThread runtime transcript selection", () => {
  it("selects persisted runtime facts while retaining the log parser as native fallback", () => {
    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        linkedRuns={[
          {
            runId: "native-run",
            runtimeMode: "native",
            status: "succeeded",
            agentId: "agent-1",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00.000Z",
            startedAt: "2026-08-25T18:00:00.000Z",
          },
          ...DIRECT_ADAPTER_TYPES.map((adapterType, index) => ({
            runId: `legacy-run-${index}`,
            runtimeMode: "legacy" as const,
            status: "succeeded",
            agentId: `agent-${index + 2}`,
            adapterType,
            createdAt: `2026-08-25T18:0${index + 1}:00.000Z`,
            startedAt: `2026-08-25T18:0${index + 1}:00.000Z`,
          })),
        ]}
      />,
    );

    const legacyRuns = transcriptHookRuns.legacy.at(-1) as Array<{
      id: string;
    }>;
    const nativeRuns = transcriptHookRuns.native.at(-1) as Array<{
      id: string;
    }>;
    expect(legacyRuns.map((run) => run.id)).toEqual([
      "native-run",
      ...DIRECT_ADAPTER_TYPES.map((_, index) => `legacy-run-${index}`),
    ]);
    expect(nativeRuns.map((run) => run.id)).toEqual(["native-run"]);
  });

  it("uses runner-only controls only for an actual native Paperclip Runner run", () => {
    nativeTranscriptState.transcriptByRun.set("native-run", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Checking the task.",
        channel: "progress",
      },
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:02.000Z",
        text: "The task is ready.",
        channel: "final",
      },
    ]);

    const run = {
      id: "native-run",
      runtimeMode: "native" as const,
      status: "running" as const,
      invocationSource: "issue" as const,
      triggerDetail: null,
      startedAt: "2026-08-25T18:00:00.000Z",
      finishedAt: null,
      createdAt: "2026-08-25T18:00:00.000Z",
      agentId: "agent-1",
      agentName: "Runner",
      adapterType: "paperclip_runner",
    };

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={run}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-runner-turn"]'),
    ).not.toBeNull();
    expect(container.textContent).toContain("Checking the task.");
    expect(container.textContent).toContain("The task is ready.");

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{ ...run, runtimeMode: "legacy" }}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-runner-turn"]'),
    ).toBeNull();

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{ ...run, adapterType: "codex_local" }}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-runner-turn"]'),
    ).toBeNull();
  });


  it.each(["matching", "document_only", "absent", "other_revision"] as const)("reports a restore failure with %s saved-plan evidence", (evidence) => {
    if (evidence !== "absent") planState.data = planDocument();
    render(<TaskChatThread issueId="issue-1" comments={[]} onAdd={async () => {}} issueStatus="blocked"
      interactions={evidence === "absent" || evidence === "document_only" ? [] : [planReviewInteraction("accepted", evidence === "matching" ? "revision-3" : "revision-2", "restore-run")]}
      onRetryFailedRun={vi.fn()} linkedRuns={[{
        runId: "restore-run", runtimeMode: "legacy", status: "failed", errorCode: "workspace_restore_failed",
        agentId: "agent-1", agentName: "Runner", adapterType: "grok_local",
        createdAt: "2026-08-25T18:00:00.000Z", startedAt: "2026-08-25T18:00:00.000Z", finishedAt: "2026-08-25T18:00:02.000Z",
        resultJson: { workspaceRestoreFailure: "restore_unsafe_archive", workspaceRestorePath: ".claude/skills/paperclip", finalResponseRecorded: false,
          ...(evidence === "document_only" ? { savedPlanRevisionId: "revision-3" } : {}),
        },
      }]} />);
    const marker = container.querySelector('[data-testid="task-chat-collapsible-marker"]');
    expect(marker?.textContent).toContain("Workspace restore failed");
    flushSync(() => marker!.querySelector<HTMLButtonElement>('button[aria-expanded]')!.click());
    expect(marker?.textContent).toContain("Workspace files need recovery");
    expect(marker?.textContent).toContain("No final response was recorded");
    expect(marker?.textContent).toContain(".claude/skills/paperclip");
    expect(marker?.querySelector('a[href*="/runs/restore-run"]')).not.toBeNull();
    expect(marker?.textContent.includes("after the plan was saved")).toBe(evidence === "matching" || evidence === "document_only");
    expect(Boolean(marker?.querySelector('a[href*="document-plan"]'))).toBe(evidence === "matching" || evidence === "document_only");
    expect(marker?.querySelector('[data-testid="task-chat-run-failed-try-again"]')).toBeNull();
  });

  it("uses neutral wording for an unclassified historical legacy failure", () => {
    render(<TaskChatThread comments={[]} onAdd={async () => {}} linkedRuns={[{
      runId: "old-run", runtimeMode: "legacy", status: "failed", errorCode: "adapter_failed",
      agentId: "agent-1", agentName: "Runner", adapterType: "grok_local",
      createdAt: "2026-08-25T18:00:00.000Z", startedAt: null, finishedAt: "2026-08-25T18:00:02.000Z",
    }]} />);
    expect(container.textContent).toContain("The run failed");
    expect(container.textContent).not.toContain("before returning an answer");
    expect(container.textContent).not.toContain("Workspace restore failed");
  });

  it("projects the saved Plan inline at its native write_document boundary", () => {
    planState.data = planDocument({
      updatedAt: new Date("2026-08-25T18:00:02.000Z"),
    });
    nativeTranscriptState.transcriptByRun.set("native-plan", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Preparing the Plan.",
        channel: "progress",
      },
      {
        kind: "tool_call",
        ts: "2026-08-25T18:00:02.000Z",
        name: "write_document",
        toolUseId: "write-plan",
        input: { key: "plan" },
      },
      {
        kind: "tool_result",
        ts: "2026-08-25T18:00:02.100Z",
        toolUseId: "write-plan",
        toolName: "write_document",
        content: "revision-3",
      },
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:03.000Z",
        text: "Plan revision is ready for review.",
        channel: "progress",
      },
    ]);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          id: "native-plan",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-25T18:00:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-25T18:00:00.000Z",
          agentId: "agent-1",
          agentName: "Runner",
          adapterType: "paperclip_runner",
          runtimeMode: "native",
        }}
      />,
    );

    const preview = container.querySelector(
      '[data-testid="task-chat-plan-preview"]',
    );
    expect(preview).not.toBeNull();
    expect(preview?.textContent).toContain("Preview the Plan");
    expect(
      preview?.closest('[data-testid="task-chat-runner-turn"]'),
    ).not.toBeNull();
    const rows = [
      ...container.querySelectorAll(
        '[data-testid="task-chat-turn-timeline-row"]',
      ),
    ];
    expect(rows.findIndex((row) => row.contains(preview))).toBeGreaterThan(0);
  });

  it("retains a native Plan as a visible fallback while its write boundary is unavailable", () => {
    planState.data = planDocument({
      updatedAt: new Date("2026-08-25T18:00:02.000Z"),
    });
    nativeTranscriptState.transcriptByRun.set("native-plan-fallback", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Recovering the Plan transcript.",
        channel: "progress",
      },
    ]);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          id: "native-plan-fallback",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-25T18:00:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-25T18:00:00.000Z",
          agentId: "agent-1",
          agentName: "Runner",
          adapterType: "paperclip_runner",
          runtimeMode: "native",
        }}
      />,
    );

    const fallback = container.querySelector(
      '[data-testid="task-chat-plan-preview-fallback"]',
    );
    expect(fallback?.textContent).toContain("Preview the Plan");
    expect(
      fallback?.closest('[data-testid="task-chat-runner-turn"]'),
    ).not.toBeNull();
    expect(
      container.querySelector('[data-testid="task-chat-plan-preview"]'),
    ).toBeNull();
  });

  it("suppresses early provider wait prose when its native interaction is pending", () => {
    nativeTranscriptState.transcriptByRun.set("native-wait", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Waiting for Plan approval.",
        channel: "final",
      },
    ]);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        interactions={[
          planReviewInteraction("pending", "revision-3", "native-wait"),
        ]}
        activeRun={{
          id: "native-wait",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-25T18:00:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-25T18:00:00.000Z",
          agentId: "agent-1",
          agentName: "Runner",
          adapterType: "paperclip_runner",
          runtimeMode: "native",
        }}
      />,
    );

    expect(container.textContent).toContain("Review the Plan");
    expect(container.textContent).not.toContain("Waiting for Plan approval.");
    expect(
      container.querySelector('[data-testid="task-chat-final-response"]'),
    ).toBeNull();
  });

  it("uses the live log when a native run has no persisted event transcript", () => {
    transcriptState.transcriptByRun.set("native-run", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Visible from the runner log fallback.",
        channel: "progress",
      },
    ]);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          id: "native-run",
          runtimeMode: "native",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-25T18:00:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-25T18:00:00.000Z",
          agentId: "agent-1",
          agentName: "Runner",
          adapterType: "paperclip_runner",
        }}
      />,
    );

    expect(container.textContent).toContain(
      "Visible from the runner log fallback.",
    );
  });

  it("uses a fresher live log when native event polling fails after earlier events", () => {
    nativeTranscriptState.transcriptByRun.set("native-run", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Stale native activity.",
        channel: "progress",
      },
    ]);
    nativeTranscriptState.errorsByRun.set("native-run", {
      message: "event endpoint unavailable",
      failedAt: "2026-08-25T18:00:02.000Z",
    });
    transcriptState.transcriptByRun.set("native-run", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:03.000Z",
        text: "Fresh activity from the runner log.",
        channel: "progress",
      },
    ]);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          id: "native-run",
          runtimeMode: "native",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-25T18:00:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-25T18:00:00.000Z",
          agentId: "agent-1",
          agentName: "Runner",
          adapterType: "paperclip_runner",
        }}
      />,
    );

    expect(container.textContent).toContain(
      "Fresh activity from the runner log.",
    );
    expect(container.textContent).not.toContain("Stale native activity.");
    expect(container.textContent).not.toContain("temporarily unavailable");
  });

  it("keeps legacy channel-less native messages readable across settlement", () => {
    nativeTranscriptState.transcriptByRun.set("native-run", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Persisted before message channels existed.",
        channel: "unknown",
      },
    ]);

    const run = {
      id: "native-run",
      runtimeMode: "native" as const,
      status: "running" as const,
      invocationSource: "issue" as const,
      triggerDetail: null,
      startedAt: "2026-08-25T18:00:00.000Z",
      finishedAt: null,
      createdAt: "2026-08-25T18:00:00.000Z",
      agentId: "agent-1",
      agentName: "Runner",
      adapterType: "paperclip_runner",
    };

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={run}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-phase-interstitial"]')
        ?.textContent,
    ).toContain("Persisted before message channels existed.");
    expect(
      container.querySelector('[data-testid="task-chat-final-response"]'),
    ).toBeNull();

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="done"
        activeRun={{
          ...run,
          status: "succeeded",
          finishedAt: "2026-08-25T18:00:02.000Z",
        }}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-phase-interstitial"]'),
    ).toBeNull();
    expect(
      container.querySelector('[data-testid="task-chat-final-response"]')
        ?.textContent,
    ).toContain("Persisted before message channels existed.");
  });

  it("recomputes a runner turn when only the message channel changes", () => {
    const run = {
      id: "native-run",
      runtimeMode: "native" as const,
      status: "running" as const,
      invocationSource: "issue" as const,
      triggerDetail: null,
      startedAt: "2026-08-25T18:00:00.000Z",
      finishedAt: null,
      createdAt: "2026-08-25T18:00:00.000Z",
      agentId: "agent-1",
      agentName: "Runner",
      adapterType: "paperclip_runner",
    };
    const renderRun = () =>
      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          issueStatus="in_progress"
          activeRun={run}
        />,
      );

    nativeTranscriptState.transcriptByRun.set("native-run", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Same text.",
        channel: "progress",
      },
    ]);
    renderRun();
    expect(
      container.querySelector('[data-testid="task-chat-phase-interstitial"]')
        ?.textContent,
    ).toContain("Same text.");
    expect(
      container.querySelector('[data-testid="task-chat-final-response"]'),
    ).toBeNull();

    nativeTranscriptState.transcriptByRun.set("native-run", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Same text.",
        channel: "final",
      },
    ]);
    renderRun();
    expect(
      container.querySelector('[data-testid="task-chat-phase-interstitial"]'),
    ).toBeNull();
    expect(
      container.querySelector('[data-testid="task-chat-final-response"]')
        ?.textContent,
    ).toContain("Same text.");
  });

  it("recomputes a runner turn when only usage totals change", () => {
    const run = {
      id: "native-run",
      runtimeMode: "native" as const,
      status: "running" as const,
      invocationSource: "issue" as const,
      triggerDetail: null,
      startedAt: "2026-08-25T18:00:00.000Z",
      finishedAt: null,
      createdAt: "2026-08-25T18:00:00.000Z",
      agentId: "agent-1",
      agentName: "Runner",
      adapterType: "paperclip_runner",
    };
    const usageEntry = (inputTokens: number) => ({
      kind: "result" as const,
      ts: "2026-08-25T18:00:01.000Z",
      text: "",
      inputTokens,
      outputTokens: 5,
      cachedTokens: 0,
      costUsd: 0,
      subtype: "paperclip_runner_usage",
      isError: false,
      errors: [],
    });
    const renderRun = () =>
      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          issueStatus="in_progress"
          activeRun={run}
        />,
      );
    const revealUsage = () => {
      const summary = container.querySelector<HTMLButtonElement>(
        '[data-testid="task-chat-activity-phase-toggle"]',
      );
      expect(summary).not.toBeNull();
      if (summary?.getAttribute("aria-expanded") !== "true") {
        flushSync(() => summary!.click());
      }
    };

    nativeTranscriptState.transcriptByRun.set("native-run", [usageEntry(10)]);
    renderRun();
    revealUsage();
    expect(container.textContent).toContain("↑10");

    nativeTranscriptState.transcriptByRun.set("native-run", [usageEntry(20)]);
    renderRun();
    revealUsage();
    expect(container.textContent).toContain("↑20");
    expect(container.textContent).not.toContain("↑10");
  });

  it("keeps a failed native run actionable after progress was rendered", async () => {
    const onRetryFailedRun = vi.fn();
    nativeTranscriptState.transcriptByRun.set("native-failed", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Started the provider request.",
        channel: "progress",
      },
    ]);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="blocked"
        onRetryFailedRun={onRetryFailedRun}
        linkedRuns={[
          {
            runId: "native-failed",
            runtimeMode: "native",
            status: "failed",
            errorCode: "provider_transport_failed",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00.000Z",
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: "2026-08-25T18:00:02.000Z",
          },
        ]}
      />,
    );

    expect(container.textContent).toContain("Started the provider request.");
    const marker = container.querySelector(
      '[data-testid="task-chat-collapsible-marker"]',
    );
    expect(marker?.textContent).toContain("Run failed");
    const retry = container.querySelector<HTMLButtonElement>(
      '[data-testid="task-chat-run-failed-try-again"]',
    );
    expect(retry).not.toBeNull();
    flushSync(() => retry!.click());
    await Promise.resolve();
    expect(onRetryFailedRun).toHaveBeenCalledWith("native-failed");
  });

  it.each([false, true])("keeps a later bootstrap failure actionable only after the old recovery has a successor: %s", async (continued) => {
    const onRetryFailedRun = vi.fn();
    render(<TaskChatThread comments={[]} onAdd={async () => {}} issueStatus="blocked"
      onRetryFailedRun={onRetryFailedRun} linkedRuns={[
        {
          runId: "old-native", runtimeMode: "native", status: "failed", errorCode: "adapter_failed",
          agentId: "agent-1", agentName: "Runner", adapterType: "paperclip_runner",
          createdAt: "2026-08-25T18:00:00.000Z", startedAt: "2026-08-25T18:00:00.000Z",
          finishedAt: "2026-08-25T18:00:02.000Z",
          execution: {
            phase: continued ? "completed" : "recovery_needed", label: continued ? "Continued in another run" : "Stopped",
            cause: "native_continuation_requires_reconciliation", lastConfirmedActivityAt: null,
            retryAt: null, attempt: 1, maxAttempts: 3, recoveryOwner: null, nextAction: null,
            permittedActions: ["inspect_run"], predecessorRunId: null, successorRunId: continued ? "failed-bootstrap" : null,
          },
        },
        {
          runId: "failed-bootstrap", runtimeMode: "legacy", status: "failed", errorCode: "setup_failed",
          agentId: "agent-1", agentName: "Runner", adapterType: "paperclip_runner",
          createdAt: "2026-08-25T18:01:00.000Z", startedAt: "2026-08-25T18:01:00.000Z",
          finishedAt: "2026-08-25T18:01:02.000Z",
        },
      ]} />);
    const retryButtons = Array.from(container.querySelectorAll<HTMLButtonElement>('[data-testid="task-chat-run-failed-try-again"]'));
    if (!continued) {
      expect(retryButtons).toHaveLength(0);
      return;
    }
    expect(retryButtons.length).toBeGreaterThan(0);
    flushSync(() => retryButtons.at(-1)!.click());
    await Promise.resolve();
    expect(onRetryFailedRun).toHaveBeenCalledExactlyOnceWith("failed-bootstrap");
  });

  it.each([false, true])("never offers the old quarantined run as Try again after continuation: %s", continued => {
    render(<TaskChatThread comments={[]} onAdd={async () => {}} issueStatus="in_progress"
      onRetryFailedRun={vi.fn()} linkedRuns={[{
        runId: "quarantined", runtimeMode: "native", status: "failed", errorCode: "native_session_cleanup_quarantined",
        agentId: "agent-1", agentName: "Runner", adapterType: "paperclip_runner",
        createdAt: "2026-08-25T18:00:00.000Z", startedAt: "2026-08-25T18:00:00.000Z", finishedAt: "2026-08-25T18:00:02.000Z",
        ...(continued ? { execution: { phase: "completed" as const, label: "Continued in another run", cause: "native_session_cleanup_quarantined",
          lastConfirmedActivityAt: null, retryAt: null, attempt: 2, maxAttempts: 3, recoveryOwner: null, nextAction: null,
          permittedActions: ["inspect_run" as const], predecessorRunId: null, successorRunId: "fresh-run" } } : {}),
      }]} />);
    expect(container.textContent).toContain("Run failed");
    expect(container.querySelector('[data-testid="task-chat-run-failed-try-again"]')).toBeNull();
  });

  it("explains a native provider usage limit without exposing its error code", async () => {
    const onRetryFailedRun = vi.fn();
    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="blocked"
        onRetryFailedRun={onRetryFailedRun}
        linkedRuns={[
          {
            runId: "native-usage-limit",
            runtimeMode: "native",
            status: "failed",
            errorCode: "native_provider_usage_limit",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00.000Z",
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: "2026-08-25T18:00:02.000Z",
          },
        ]}
      />,
    );

    const marker = container.querySelector(
      '[data-testid="task-chat-collapsible-marker"]',
    );
    expect(marker?.textContent).toContain("Usage limit reached");
    expect(marker?.textContent).not.toContain("Run failed");
    const disclosure = marker?.querySelector<HTMLButtonElement>(
      'button[aria-expanded="false"]',
    );
    expect(disclosure).not.toBeNull();
    flushSync(() => disclosure!.click());
    const details = container.querySelector(
      '[data-testid="task-chat-collapsible-marker-details"]',
    );
    expect(details?.textContent).toContain(
      "The model provider has reached its current usage limit. Try again after the limit resets.",
    );
    expect(details?.textContent).not.toContain("native_provider_usage_limit");
    const retry = container.querySelector<HTMLButtonElement>(
      '[data-testid="task-chat-run-failed-try-again"]',
    );
    expect(retry).not.toBeNull();
    flushSync(() => retry!.click());
    await Promise.resolve();
    expect(onRetryFailedRun).toHaveBeenCalledWith("native-usage-limit");
  });

  it("explains a legacy run prevented from starting by a reconciliation hold", () => {
    render(<TaskChatThread comments={[]} onAdd={async () => {}} linkedRuns={[{
      runId: "blocked-legacy", runtimeMode: "legacy", status: "cancelled",
      errorCode: "execution_reconciliation_required", agentId: "agent-1", agentName: "Runner",
      adapterType: "claude_local", createdAt: "2026-08-25T18:00:00.000Z",
      startedAt: null, finishedAt: "2026-08-25T18:00:00.012Z",
    }]} />);
    expect(container.textContent).toContain("Waiting to resume");
    expect(container.textContent).not.toContain("No user-facing response");
    expect(container.textContent).not.toContain("Run completed");
    expect(container.querySelector(".text-destructive")).toBeNull();
  });

  it.each(["legacy", "native"] as const)("groups repeated %s pre-start holds without hiding executed work", (runtimeMode) => {
    const heldRun = (id: string, recoveryActionId: string, startedAt: string | null = null) => ({
      runId: id, runtimeMode, status: "cancelled", errorCode: "execution_reconciliation_required",
      agentId: "agent-1", adapterType: runtimeMode === "native" ? "paperclip_runner" : "claude_local",
      createdAt: "2026-09-10T18:00:00.000Z", finishedAt: "2026-09-10T18:00:01.000Z", startedAt,
      resultJson: { executionWait: { recoveryActionId } },
    });
    render(<TaskChatThread comments={[]} onAdd={async () => {}} linkedRuns={[
      ...Array.from({ length: 100 }, (_, i) => heldRun(`wait-${i}`, "hold-1")),
      heldRun("ran", "hold-1", "2026-09-10T18:00:00.500Z"),
      heldRun("new-hold", "hold-2"),
      heldRun("same-new-hold", "hold-2"),
    ]} />);
    expect(container.textContent?.match(/Waiting to resume/g)).toHaveLength(2);
    expect(container.textContent).not.toContain("Couldn't start");
    expect(container.textContent).toContain(runtimeMode === "native" ? "Run cancelled" : "Stopped");
  });

  it("shows cancellation after native progress without offering a retry", () => {
    nativeTranscriptState.transcriptByRun.set("native-cancelled", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Work was in progress.",
        channel: "progress",
      },
    ]);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        linkedRuns={[
          {
            runId: "native-cancelled",
            runtimeMode: "native",
            status: "cancelled",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00.000Z",
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: "2026-08-25T18:00:02.000Z",
          },
        ]}
      />,
    );

    expect(container.textContent).toContain("Work was in progress.");
    expect(container.querySelector('[data-testid="task-chat-collapsible-marker"] button')?.classList).toContain("text-muted-foreground");
    expect(container.querySelector('[data-testid="task-chat-collapsible-marker"] .text-destructive')).toBeNull();
    expect(
      container.querySelector('[data-testid="task-chat-collapsible-marker"]')
        ?.textContent,
    ).toContain("Run cancelled");
    expect(
      container.querySelector('[data-testid="task-chat-run-failed-try-again"]'),
    ).toBeNull();
  });

  it.each([
    ["failed", "Run failed"],
    ["timed_out", "Run timed out"],
    ["cancelled", "Run cancelled"],
    ["interrupted", "Run interrupted"],
  ] as const)(
    "does not claim a native %s run returned no answer when its final response is visible",
    (status, expectedLabel) => {
      nativeTranscriptState.transcriptByRun.set(`native-${status}`, [
        {
          kind: "assistant",
          ts: "2026-08-25T18:00:01.000Z",
          text: `Final response before ${status}.`,
          channel: "final",
        },
      ]);

      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          linkedRuns={[
            {
              runId: `native-${status}`,
              runtimeMode: "native",
              status,
              errorCode: `native_${status}`,
              agentId: "agent-1",
              agentName: "Runner",
              adapterType: "paperclip_runner",
              createdAt: "2026-08-25T18:00:00.000Z",
              startedAt: "2026-08-25T18:00:00.000Z",
              finishedAt: "2026-08-25T18:00:02.000Z",
            },
          ]}
        />,
      );

      const finalResponses = container.querySelectorAll(
        '[data-testid="task-chat-final-response"]',
      );
      expect(finalResponses).toHaveLength(1);
      expect(finalResponses[0]?.textContent).toContain(
        `Final response before ${status}.`,
      );

      const marker = container.querySelector(
        '[data-testid="task-chat-collapsible-marker"]',
      );
      expect(marker?.textContent).toContain(expectedLabel);
      const markerToggle = marker?.querySelector<HTMLButtonElement>(
        'button[aria-expanded="false"]',
      );
      expect(markerToggle).not.toBeNull();
      flushSync(() => markerToggle!.click());

      const detail = container.querySelector(
        '[data-testid="task-chat-collapsible-marker-details"]',
      );
      expect(detail?.textContent).toContain("after returning a final response");
      expect(detail?.textContent).not.toContain("before returning an answer");
      expect(container.textContent).not.toContain(
        "The runner returned no user-facing response.",
      );
    },
  );

  it("shows an actionable approval-required reason for a stopped native run", () => {
    render(<TaskChatThread comments={[]} onAdd={async () => {}} linkedRuns={[{
      runId: "approval-required", runtimeMode: "native", status: "failed",
      errorCode: "native_provider_approval_required",
      agentId: "agent-1", agentName: "Runner", adapterType: "paperclip_runner",
      startedAt: "2026-09-14T15:00:00.000Z", createdAt: "2026-09-14T15:00:00.000Z",
      finishedAt: "2026-09-14T15:00:02.000Z",
    }]} />);
    const marker = container.querySelector('[data-testid="task-chat-collapsible-marker"]');
    expect(marker?.textContent).toContain("Approval required");
    flushSync(() => marker!.querySelector<HTMLButtonElement>('button[aria-expanded="false"]')!.click());
    expect(container.textContent).toContain("Review the operation and update the agent's permission setting before retrying");
    expect(container.textContent).not.toContain("The runner stopped");
  });

  it("keeps workspace contention out of the conversation's cancellation markers", () => {
    render(<TaskChatThread comments={[]} onAdd={async () => {}} linkedRuns={[{
      runId: "workspace-wait", runtimeMode: "native", status: "cancelled", errorCode: "workspace_busy",
      agentId: "agent-1", agentName: "Runner", adapterType: "paperclip_runner", startedAt: null,
      createdAt: "2026-09-12T18:00:00.000Z", finishedAt: "2026-09-12T18:00:01.000Z",
    }]} />);
    expect(container.textContent).not.toContain("Run cancelled");
    expect(container.textContent).not.toContain("Run failed");
    expect(container.textContent).not.toContain("before returning an answer");
  });

  it("does not render an empty response notice for a conversation reset", () => {
    render(<TaskChatThread comments={[]} onAdd={async () => {}} linkedRuns={[{
      runId: "chat-reset", status: "succeeded", startedAt: null, resultJson: { conversationReset: true },
      agentId: "agent-1", agentName: "Claude", adapterType: "claude_local",
      createdAt: "2026-09-11T18:00:00.000Z", finishedAt: "2026-09-11T18:00:01.000Z",
    }]} />);
    expect(container.textContent).not.toContain("The runner returned no user-facing response.");
    expect(container.textContent).not.toContain("Run completed");
  });

  it.each([
    ["legacy", "issue_not_in_progress"],
    ["native", "issue_not_in_progress"],
    ["legacy", "issue_terminal_status"],
    ["native", "issue_terminal_status"],
  ] as const)(
    "hides a redundant cancelled continuation (%s, %s)",
    (runtimeMode, errorCode) => {
      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          linkedRuns={[
            {
              runId: "connection-continuation-skipped",
              runtimeMode,
              status: "cancelled",
              errorCode,
              startedAt: null,
              agentId: "agent-1",
              agentName: "Runner",
              adapterType: "paperclip_runner",
              createdAt: "2026-09-07T18:00:00.000Z",
              finishedAt: "2026-09-07T18:00:01.000Z",
            },
          ]}
        />,
      );
      expect(container.textContent).not.toContain(
        "The runner returned no user-facing response.",
      );
      expect(container.textContent).not.toContain("Run completed");
      expect(container.textContent).not.toContain("Couldn't start");
      expect(container.textContent).not.toContain("Run cancelled");
      expect(container.textContent).not.toContain("before returning an answer");
    },
  );

  it.each(["legacy", "native"] as const)(
    "keeps a cancellation visible when the %s run had already started",
    (runtimeMode) => {
      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          linkedRuns={[
            {
              runId: "started-cancellation",
              runtimeMode,
              status: "cancelled",
              errorCode: "issue_terminal_status",
              agentId: "agent-1",
              agentName: "Runner",
              adapterType: "paperclip_runner",
              createdAt: "2026-09-07T18:00:00.000Z",
              startedAt: "2026-09-07T18:00:00.500Z",
              finishedAt: "2026-09-07T18:00:01.000Z",
            },
          ]}
        />,
      );
      expect(container.textContent).toContain(
        runtimeMode === "native" ? "Run cancelled" : "Stopped",
      );
    },
  );

  it("does not treat a progress comment as the final response of a failed native run", () => {
    nativeTranscriptState.transcriptByRun.set("native-progress-failed", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Still working through the provider request.",
        channel: "progress",
      },
    ]);

    render(
      <TaskChatThread
        comments={[
          {
            id: "progress-comment",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "agent",
            authorAgentId: "agent-1",
            authorUserId: null,
            body: "Progress checkpoint only.",
            presentation: null,
            metadata: null,
            runId: "native-progress-failed",
            createdAt: new Date("2026-08-25T18:00:01.500Z"),
            updatedAt: new Date("2026-08-25T18:00:01.500Z"),
          },
        ]}
        onAdd={async () => {}}
        linkedRuns={[
          {
            runId: "native-progress-failed",
            runtimeMode: "native",
            status: "failed",
            errorCode: "provider_transport_failed",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00.000Z",
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: "2026-08-25T18:00:02.000Z",
            resultJson: {
              presentationDecision: {
                schema: "paperclip.run_presentation_decision.v1",
                chosenSource: "none",
                commentId: null,
              },
            },
          },
        ]}
      />,
    );

    const marker = container.querySelector(
      '[data-testid="task-chat-collapsible-marker"]',
    );
    const markerToggle = marker?.querySelector<HTMLButtonElement>(
      'button[aria-expanded="false"]',
    );
    expect(markerToggle).not.toBeNull();
    flushSync(() => markerToggle!.click());
    expect(
      container.querySelector(
        '[data-testid="task-chat-collapsible-marker-details"]',
      )?.textContent,
    ).toContain("The runner stopped (provider_transport_failed).");
    expect(
      container.querySelector('[data-testid="task-chat-final-response"]'),
    ).toBeNull();
  });

  it("does not repeat progress when the persisted completion comment owns the same text", () => {
    const repeated = "BASELINE-DONE";
    nativeTranscriptState.transcriptByRun.set("native-repeated-final", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: repeated,
        channel: "progress",
      },
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:02.000Z",
        text: repeated,
        channel: "final",
      },
    ]);

    render(
      <TaskChatThread
        comments={[
          {
            id: "native-repeated-final-comment",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "agent",
            authorAgentId: "agent-1",
            authorUserId: null,
            body: repeated,
            presentation: null,
            metadata: null,
            runId: "native-repeated-final",
            createdAt: new Date("2026-08-25T18:00:03.000Z"),
            updatedAt: new Date("2026-08-25T18:00:03.000Z"),
          },
        ]}
        onAdd={async () => {}}
        linkedRuns={[
          {
            runId: "native-repeated-final",
            runtimeMode: "native",
            status: "succeeded",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00.000Z",
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: "2026-08-25T18:00:03.000Z",
            resultJson: {
              presentationDecision: {
                schema: "paperclip.run_presentation_decision.v1",
                chosenSource: "final_agent_message",
                commentId: "native-repeated-final-comment",
              },
            },
          },
        ]}
      />,
    );

    expect(container.textContent?.split(repeated)).toHaveLength(2);
    expect(
      Array.from(
        container.querySelectorAll(
          '[data-testid="task-chat-phase-interstitial"]',
        ),
      ).some((element) => element.textContent?.includes(repeated)),
    ).toBe(false);
    expect(
      container.querySelector('[data-testid="task-chat-agent-bubble"]')
        ?.textContent,
    ).toContain(repeated);
  });

  it("removes only the final repeated progress across steering segments", () => {
    const repeated = "SAME-BEFORE-AND-AFTER";
    nativeTranscriptState.transcriptByRun.set("native-steered-repetition", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: repeated,
        channel: "progress",
      },
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:03.000Z",
        text: repeated,
        channel: "progress",
      },
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:04.000Z",
        text: repeated,
        channel: "final",
      },
    ]);

    render(
      <TaskChatThread
        comments={[
          {
            id: "steering-comment",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "user",
            authorAgentId: null,
            authorUserId: "user-1",
            body: "Steer this run.",
            presentation: null,
            metadata: null,
            runId: null,
            followUpRequested: true,
            consumedByRunId: "native-steered-repetition",
            steeredIntoRunId: "native-steered-repetition",
            conversationAnchorAt: new Date("2026-08-25T18:00:02.000Z"),
            createdAt: new Date("2026-08-25T17:59:32.000Z"),
            updatedAt: new Date("2026-08-25T18:00:02.000Z"),
          },
          {
            id: "native-steered-repetition-final",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "agent",
            authorAgentId: "agent-1",
            authorUserId: null,
            body: repeated,
            presentation: null,
            metadata: null,
            runId: "native-steered-repetition",
            createdAt: new Date("2026-08-25T18:00:05.000Z"),
            updatedAt: new Date("2026-08-25T18:00:05.000Z"),
          },
        ]}
        onAdd={async () => {}}
        linkedRuns={[
          {
            runId: "native-steered-repetition",
            runtimeMode: "native",
            status: "succeeded",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00.000Z",
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: "2026-08-25T18:00:05.000Z",
            resultJson: {
              presentationDecision: {
                schema: "paperclip.run_presentation_decision.v1",
                chosenSource: "final_agent_message",
                commentId: "native-steered-repetition-final",
              },
            },
          },
        ]}
      />,
    );

    const matchingPhases = Array.from(
      container.querySelectorAll(
        '[data-testid="task-chat-phase-interstitial"]',
      ),
    ).filter((element) => element.textContent?.includes(repeated));
    expect(matchingPhases).toHaveLength(1);
    expect(
      container.querySelector('[data-testid="task-chat-agent-bubble"]')
        ?.textContent,
    ).toContain(repeated);
    expect(container.textContent).toContain(
      new Date("2026-08-25T17:59:32.000Z").toLocaleTimeString([], { hour: "numeric", minute: "2-digit" }),
    );
    const turnHeaders = Array.from(
      container.querySelectorAll('[data-testid="task-chat-turn-summary"]'),
    );
    expect(turnHeaders).toHaveLength(2);
    expect(turnHeaders[0]?.textContent).not.toContain(
      "Continued after steering",
    );
    expect(turnHeaders[1]?.textContent).toContain(
      "Continued after steering · Worked for",
    );
  });

  it("labels the live tail as a continuation after the steering bubble", () => {
    nativeTranscriptState.transcriptByRun.set("native-live-steered", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Work before steering.",
        channel: "progress",
      },
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:03.000Z",
        text: "Work after steering.",
        channel: "progress",
      },
    ]);

    render(
      <TaskChatThread
        comments={[
          {
            id: "live-steering-comment",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "user",
            authorAgentId: null,
            authorUserId: "user-1",
            body: "Change course now.",
            presentation: null,
            metadata: null,
            runId: null,
            consumedByRunId: "native-live-steered",
            steeredIntoRunId: "native-live-steered",
            conversationAnchorAt: new Date("2026-08-25T18:00:02.000Z"),
            createdAt: new Date("2026-08-25T17:59:32.000Z"),
            updatedAt: new Date("2026-08-25T18:00:02.000Z"),
          },
        ]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          id: "native-live-steered",
          runtimeMode: "native",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-25T18:00:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-25T18:00:00.000Z",
          agentId: "agent-1",
          agentName: "Runner",
          adapterType: "paperclip_runner",
        }}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-turn-summary"]')
        ?.textContent,
    ).not.toContain("Continued after steering");
    expect(
      container.querySelector('[data-testid="task-chat-turn-status-header"]')
        ?.textContent,
    ).toContain("Continued after steering · Working for");
    expect(container.textContent).toContain(
      new Date("2026-08-25T17:59:32.000Z").toLocaleTimeString([], { hour: "numeric", minute: "2-digit" }),
    );
  });

  it.each([
    "missing_result_metadata",
    "yielded_result_metadata",
    "steered_missing_result_metadata",
    "persisted_response_comment",
    "pending_attention",
    "live",
    "failed",
    "proposed",
    "question",
    "approval",
  ])("renders only an authorized terminal response-wake answer: %s", (mode) => {
    const runId = "native-checklist-response";
    const summary =
      "**Before release**\n- Test and rehearse rollback.\n\n**During release**\n- Deploy incrementally and watch errors.\n\n**After release**\n- Verify workflows and record follow-ups.";
    const result = {
      schema: "paperclip.run_result.v1",
      reportedWorkDisposition: "yielded",
      summary,
      completionClaim: { objectiveSatisfied: true, remainingWork: [] },
      continuation: {
        kind: "response_wake",
        idempotencyKey: "next-chat-input",
      },
      attentionRequests:
        mode === "question" || mode === "approval"
          ? [
              {
                kind:
                  mode === "question"
                    ? "ask_user_questions"
                    : "request_confirmation",
              },
            ]
          : [],
      evidence: [],
      verification: [],
      artifacts: [],
    };
    const event = (
      seq: number,
      eventType: string,
      payload: Record<string, unknown>,
    ) =>
      ({
        id: seq,
        companyId: "company-1",
        agentId: "agent-1",
        stream: "system",
        level: "info",
        color: null,
        message: null,
        runId,
        seq,
        eventType,
        createdAt: new Date("2026-08-25T18:00:00Z"),
        payload: {
          prpEvent: {
            schema: "paperclip.prp.event.v1",
            schemaVersion: 1,
            runId,
            eventType,
            sourceEventId: `checklist-${seq}`,
            sourceKind:
              eventType === "run.result.accepted" ||
              eventType === "run.terminal"
                ? "control_plane"
                : "runner",
            sourceInstanceId: "runner-1",
            sourceSeq: seq,
            normalizedSessionId: "session-1",
            emittedAt: `2026-08-25T18:00:0${seq}Z`,
            payload,
          },
        },
      }) satisfies HeartbeatRunEvent;
    nativeTranscriptState.transcriptByRun.set(
      runId,
      nativeRunEventsToTranscript([
        event(1, "item.completed", {
          kind: "agentMessage",
          channel: "progress",
          item: {
            id: "preamble",
            type: "agentMessage",
            channel: "progress",
            text: "I’m providing the requested checklist and leaving the task open.",
          },
        }),
        event(2, "run.result.proposed", result),
        ...(mode === "proposed"
          ? []
          : [event(3, "run.result.accepted", { result })]),
        event(4, "run.terminal", {
          schema: "paperclip.prp.terminal.v1",
          turnTerminalState: "completed",
          runTerminalState: "succeeded",
          reportedWorkDisposition: "yielded",
        }),
      ]),
    );
    render(
      <TaskChatThread
        comments={
          mode === "steered_missing_result_metadata"
            ? [
                {
                  id: "response-wake-steering",
                  companyId: "company-1",
                  issueId: "issue-1",
                  authorType: "user",
                  authorAgentId: null,
                  authorUserId: "user-1",
                  body: "Keep the task open for follow-up.",
                  presentation: null,
                  metadata: null,
                  runId: null,
                  followUpRequested: true,
                  consumedByRunId: runId,
                  steeredIntoRunId: runId,
                  conversationAnchorAt: new Date("2026-08-25T18:00:03.500Z"),
                  createdAt: new Date("2026-08-25T18:00:03.000Z"),
                  updatedAt: new Date("2026-08-25T18:00:03.500Z"),
                },
              ]
            : mode === "persisted_response_comment"
              ? [
                  {
                    id: "private-board-response",
                    companyId: "company-1",
                    issueId: "issue-1",
                    authorType: "agent",
                    authorAgentId: "agent-1",
                    authorUserId: null,
                    body: summary,
                    presentation: null,
                    metadata: null,
                    createdByRunId: runId,
                    runId,
                    createdAt: new Date("2026-08-25T18:00:29.000Z"),
                    updatedAt: new Date("2026-08-25T18:00:29.000Z"),
                  },
                ]
              : []
        }
        onAdd={async () => {}}
        issueStatus="in_progress"
        interactions={
          mode === "pending_attention"
            ? [planReviewInteraction("pending", "revision-3", runId)]
            : []
        }
        activeRun={
          mode === "live"
            ? {
                id: runId,
                runtimeMode: "native",
                status: "running",
                invocationSource: "issue",
                triggerDetail: null,
                agentId: "agent-1",
                agentName: "Runner",
                adapterType: "paperclip_runner",
                createdAt: "2026-08-25T18:00:00Z",
                startedAt: "2026-08-25T18:00:00Z",
                finishedAt: null,
              }
            : undefined
        }
        linkedRuns={[
          {
            runId,
            runtimeMode: "native",
            status:
              mode === "live"
                ? "running"
                : mode === "failed"
                  ? "failed"
                  : "succeeded",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00Z",
            startedAt: "2026-08-25T18:00:00Z",
            finishedAt: mode === "live" ? null : "2026-08-25T18:00:30Z",
            resultJson: mode.endsWith("missing_result_metadata")
              ? { recoveredExecutionFailure: { errorCode: "adapter_failed" } }
              : {
                  nativeResult: result,
                  ...(mode === "persisted_response_comment"
                    ? {
                        presentationDecision: {
                          schema: "paperclip.run_presentation_decision.v1",
                          chosenSource: "existing_issue_comment",
                          commentId: "private-board-response",
                        },
                      }
                    : {}),
                },
          },
        ]}
      />,
    );
    const responses = container.querySelectorAll(
      '[data-testid="task-chat-final-response"]',
    );
    if (mode === "persisted_response_comment") {
      expect(responses).toHaveLength(0);
      expect(container.textContent?.split("Before release")).toHaveLength(2);
      expect(
        container.querySelector('[data-testid="task-chat-agent-bubble"]')
          ?.textContent,
      ).toContain("After release");
      return;
    }
    if (
      mode !== "missing_result_metadata" &&
      mode !== "yielded_result_metadata" &&
      mode !== "steered_missing_result_metadata"
    ) {
      expect(responses).toHaveLength(0);
      return;
    }
    expect(responses).toHaveLength(1);
    expect(responses[0]?.textContent).toContain("Before release");
    expect(responses[0]?.textContent).toContain("After release");
    expect(responses[0]?.textContent).not.toContain("I’m providing");
    expect(container.textContent).not.toContain(
      "The runner returned no user-facing response.",
    );
  });

  it("keeps a yielded question turn out of the final-response slot", () => {
    nativeTranscriptState.transcriptByRun.set("native-question", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:01.000Z",
        text: "Preparing the verification question.",
        channel: "progress",
      },
      {
        kind: "assistant",
        ts: "2026-08-25T18:00:02.000Z",
        text: "Waiting for Choose the verification word.",
        channel: "final",
      },
    ]);
    nativeTranscriptState.transcriptByRun.set("native-continuation", [
      {
        kind: "assistant",
        ts: "2026-08-25T18:01:01.000Z",
        text: "Cobalt was selected and the task is complete.",
        channel: "final",
      },
    ]);

    render(
      <TaskChatThread
        comments={[
          {
            id: "native-question-placeholder",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "agent",
            authorAgentId: "agent-1",
            authorUserId: null,
            body: "Run completed. Agent did not post a summary comment this run (transcript withheld — see run log).",
            presentation: null,
            metadata: null,
            runId: "native-question",
            createdAt: new Date("2026-08-25T18:00:03.000Z"),
            updatedAt: new Date("2026-08-25T18:00:03.000Z"),
          },
        ]}
        onAdd={async () => {}}
        linkedRuns={[
          {
            runId: "native-question",
            runtimeMode: "native",
            status: "succeeded",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:00:00.000Z",
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: "2026-08-25T18:00:03.000Z",
            resultJson: {
              nativeResult: {
                schema: "paperclip.run_result.v1",
                reportedWorkDisposition: "yielded",
                summary: "Waiting for Choose the verification word.",
              },
              presentationDecision: {
                schema: "paperclip.run_presentation_decision.v1",
                chosenSource: "none",
                commentId: null,
              },
            },
          },
          {
            runId: "native-continuation",
            runtimeMode: "native",
            status: "succeeded",
            agentId: "agent-1",
            agentName: "Runner",
            adapterType: "paperclip_runner",
            createdAt: "2026-08-25T18:01:00.000Z",
            startedAt: "2026-08-25T18:01:00.000Z",
            finishedAt: "2026-08-25T18:01:02.000Z",
            resultJson: {
              nativeResult: {
                schema: "paperclip.run_result.v1",
                reportedWorkDisposition: "done",
                summary: "Cobalt was selected and the task is complete.",
              },
              presentationDecision: {
                schema: "paperclip.run_presentation_decision.v1",
                chosenSource: "none",
                commentId: null,
              },
            },
          },
        ]}
      />,
    );

    const finalResponses = container.querySelectorAll(
      '[data-testid="task-chat-final-response"]',
    );
    expect(finalResponses).toHaveLength(1);
    expect(finalResponses[0]?.textContent).toContain(
      "Cobalt was selected and the task is complete.",
    );
    expect(container.textContent).toContain(
      "Preparing the verification question.",
    );
    expect(container.textContent).not.toContain(
      "Waiting for Choose the verification word.",
    );
    expect(container.textContent).not.toContain("transcript withheld");
  });

  it.each(["failed", "timed_out", "cancelled"] as const)(
    "keeps an empty legacy %s actionable without turning Stop into Retry",
    async (status) => {
      const onRetryFailedRun = vi.fn();
      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          issueStatus="blocked"
          onRetryFailedRun={onRetryFailedRun}
          linkedRuns={[
            {
              runId: "legacy-failed",
              runtimeMode: "legacy",
              status,
              errorCode: "legacy_process_exited",
              agentId: "agent-1",
              agentName: "Direct Codex",
              adapterType: "codex_local",
              createdAt: "2026-08-25T18:00:00.000Z",
              startedAt: "2026-08-25T18:00:00.000Z",
              finishedAt: "2026-08-25T18:00:02.000Z",
            },
          ]}
        />,
      );

      expect(container.textContent).toContain(status === "cancelled" ? "Stopped" : "Run failed");
      if (status !== "cancelled") {
        expect(container.textContent).toContain("You can retry this message now.");
      }
      expect(
        container.querySelector('[data-testid="task-chat-collapsible-marker"]'),
      ).toBeNull();
      const retry = container.querySelector<HTMLButtonElement>('[data-testid="task-chat-run-failed-try-again"]');
      if (status === "cancelled") {
        expect(retry).toBeNull();
      } else {
        expect(retry).not.toBeNull();
        flushSync(() => retry!.click());
        await Promise.resolve();
        expect(onRetryFailedRun).toHaveBeenCalledExactlyOnceWith("legacy-failed");
      }
      expect(
        container.querySelector('[data-testid="task-chat-runner-turn"]'),
      ).toBeNull();
    },
  );

  it.each(["failed", "timed_out"] as const)(
    "retries the latest legacy %s attempt even when it has a transcript and final comment",
    async (status) => {
      const onRetryFailedRun = vi.fn();
      transcriptState.transcriptByRun.set("latest-attempt", [{
        kind: "assistant",
        ts: "2026-08-25T18:01:01.000Z",
        text: "Starting the requested revision.",
      }]);
      const run = {
        runtimeMode: "legacy" as const,
        adapterType: "claude_local",
        agentId: "agent-1",
        agentName: "Direct agent",
        startedAt: null,
      };
      render(
        <TaskChatThread
          comments={[{
            id: "failure-comment",
            companyId: "company-1",
            issueId: "issue-1",
            authorAgentId: "agent-1",
            authorUserId: null,
            authorType: "agent",
            presentation: null,
            metadata: null,
            body: "The startup handshake timed out.",
            runId: "latest-attempt",
            createdAt: new Date("2026-08-25T18:01:02.000Z"),
            updatedAt: new Date("2026-08-25T18:01:02.000Z"),
          }]}
          onAdd={async () => {}}
          issueStatus="todo"
          onRetryFailedRun={onRetryFailedRun}
          linkedRuns={[
            { ...run, runId: "original-failure", status: "failed",
              createdAt: "2026-08-25T18:00:00.000Z", startedAt: "2026-08-25T18:00:00.000Z",
              finishedAt: "2026-08-25T18:00:02.000Z" },
            { ...run, runId: "latest-attempt", status, errorCode: "acpx_handshake_timeout",
              createdAt: "2026-08-25T18:01:00.000Z", startedAt: "2026-08-25T18:01:00.000Z",
              finishedAt: "2026-08-25T18:01:02.000Z",
              resultJson: { presentationDecision: { commentId: "failure-comment" } } },
            { ...run, runId: "cancelled-automatic-retry", status: "cancelled",
              errorCode: "execution_reconciliation_required",
              createdAt: "2026-08-25T18:02:00.000Z", finishedAt: "2026-08-25T18:02:02.000Z" },
          ]}
        />,
      );

      expect(container.textContent).toContain("The startup handshake timed out.");
      const buttons = container.querySelectorAll<HTMLButtonElement>('[data-testid="task-chat-run-failed-try-again"]');
      expect(buttons).toHaveLength(1);
      flushSync(() => buttons[0]!.click());
      await Promise.resolve();
      expect(onRetryFailedRun).toHaveBeenCalledExactlyOnceWith("latest-attempt");
    },
  );

  it.each(["active execution", "pending decision", "recovery hold"].flatMap(
    (gate) => [false, true].map((hasTranscript) => ({ gate, hasTranscript })),
  ))(
    "does not promise legacy Retry during $gate (transcript: $hasTranscript) and restores it when the gate clears",
    ({ gate, hasTranscript }) => {
      const onRetryFailedRun = vi.fn();
      if (hasTranscript) transcriptState.transcriptByRun.set("legacy-failed", [{
        kind: "assistant", ts: "2026-08-25T18:00:01.000Z", text: "Starting the task.",
      }]);
      const failedRun = {
        runId: "legacy-failed",
        runtimeMode: "legacy" as const,
        status: "failed",
        errorCode: "legacy_process_exited",
        agentId: "agent-1",
        agentName: "Direct Codex",
        adapterType: "codex_local",
        createdAt: "2026-08-25T18:00:00.000Z",
        startedAt: "2026-08-25T18:00:00.000Z",
        finishedAt: "2026-08-25T18:00:02.000Z",
      };
      const gateProps: Partial<ComponentProps<typeof TaskChatThread>> =
        gate === "pending decision"
          ? { interactions: [planReviewInteraction()] }
          : {
              linkedRuns: [{
                ...failedRun,
                execution: {
                  phase: gate === "active execution" ? "working" : "recovery_needed",
                  label: "Waiting",
                  cause: null,
                  lastConfirmedActivityAt: null,
                  retryAt: null,
                  attempt: 1,
                  maxAttempts: 3,
                  recoveryOwner: null,
                  nextAction: null,
                  permittedActions: [],
                  predecessorRunId: null,
                  successorRunId: null,
                },
              }],
            };
      const renderRun = (held: boolean) => render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          issueStatus="blocked"
          onRetryFailedRun={onRetryFailedRun}
          linkedRuns={[failedRun]}
          {...(held ? gateProps : {})}
        />,
      );
      renderRun(true);
      expect(container.textContent).toContain("Your message is preserved.");
      expect(container.textContent).not.toContain("You can retry this message now.");
      expect(container.querySelector('[data-testid="task-chat-run-failed-try-again"]')).toBeNull();
      renderRun(false);
      expect(container.textContent).toContain("You can retry this message now.");
      expect(container.querySelector('[data-testid="task-chat-run-failed-try-again"]')).not.toBeNull();
    },
  );

  it.each([
    ...["claude_local", "codex_local", "cursor", "gemini_local", "opencode_local",
      "pi_local", "grok_local", "kimi_local", "hermes_local"].flatMap((adapterType) =>
      ["failed", "timed_out"].map((status) => ({ adapterType, status, runtimeMode: "legacy" as const,
        cause: "legacy_execution_requires_reconciliation", canRetry: true }))),
    { adapterType: "paperclip_runner", status: "failed", runtimeMode: "native" as const,
      cause: "legacy_execution_requires_reconciliation", canRetry: false },
    { adapterType: "process", status: "failed", runtimeMode: "legacy" as const,
      cause: "legacy_execution_requires_reconciliation", canRetry: false },
    { adapterType: "claude_local", status: "failed", runtimeMode: "legacy" as const,
      cause: "uncertain_provider_action", canRetry: false },
    { adapterType: "claude_local", status: "cancelled", runtimeMode: "legacy" as const,
      cause: "legacy_execution_requires_reconciliation", canRetry: false },
  ])("offers only explicit conversation retries: $runtimeMode/$adapterType/$status/$cause", (testCase) => {
    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="blocked"
        onRetryFailedRun={vi.fn()}
        linkedRuns={[{
          runId: "stopped-run",
          runtimeMode: testCase.runtimeMode,
          adapterType: testCase.adapterType,
          status: testCase.status,
          agentId: "agent-1",
          agentName: "Stopped agent",
          createdAt: "2026-08-25T18:00:00.000Z",
          startedAt: "2026-08-25T18:00:00.000Z",
          finishedAt: "2026-08-25T18:00:02.000Z",
          execution: {
            phase: "recovery_needed", label: "Stopped", cause: testCase.cause,
            lastConfirmedActivityAt: null, retryAt: null, attempt: 1, maxAttempts: 3,
            recoveryOwner: null, nextAction: null, permittedActions: [],
            predecessorRunId: null, successorRunId: null,
          },
        }]}
      />,
    );
    expect(Boolean(container.querySelector('[data-testid="task-chat-run-failed-try-again"]')))
      .toBe(testCase.canRetry);
    if (testCase.canRetry) expect(container.textContent).toContain("You can retry this message now.");
    else expect(container.textContent).not.toContain("You can retry this message now.");
  });

  it.each(DIRECT_ADAPTER_TYPES)(
    "keeps active %s output on the legacy live-tail surface",
    (adapterType) => {
      const runId = `active-${adapterType}`;
      transcriptState.transcriptByRun.set(runId, [
        {
          kind: "assistant",
          ts: "2026-08-25T18:00:01.000Z",
          text: `Active ${adapterType} output`,
        },
      ]);

      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          issueStatus="in_progress"
          activeRun={{
            id: runId,
            runtimeMode: "legacy",
            status: "running",
            invocationSource: "issue",
            triggerDetail: null,
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: null,
            createdAt: "2026-08-25T18:00:00.000Z",
            agentId: "agent-1",
            agentName: "Direct agent",
            adapterType,
          }}
        />,
      );

      expect(
        container.querySelector('[data-testid="task-chat-live-run-pill"]'),
      ).not.toBeNull();
      expect(
        container.querySelector('[data-testid="task-chat-phase-interstitial"]')
          ?.textContent,
      ).toContain(`Active ${adapterType} output`);
      expect(
        container.querySelector('[data-testid="task-chat-runner-turn"]'),
      ).toBeNull();
      expect(
        container.querySelector('[data-testid="task-chat-queued-messages"]'),
      ).toBeNull();
    },
  );

  it.each(DIRECT_ADAPTER_TYPES)(
    "keeps settled %s activity in the shared legacy turn",
    (adapterType) => {
      const runId = `settled-${adapterType}`;
      transcriptState.transcriptByRun.set(runId, [
        {
          kind: "tool_call",
          ts: "2026-08-25T18:00:01.000Z",
          name: "Read",
          toolUseId: `${runId}-tool`,
          input: { file_path: "src/legacy.ts" },
        },
        {
          kind: "tool_result",
          ts: "2026-08-25T18:00:02.000Z",
          toolUseId: `${runId}-tool`,
          toolName: "Read",
          content: "legacy contents",
          isError: false,
        },
      ]);

      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          linkedRuns={[
            {
              runId,
              runtimeMode: "legacy",
              status: "succeeded",
              agentId: "agent-1",
              agentName: "Direct agent",
              adapterType,
              createdAt: "2026-08-25T18:00:00.000Z",
              startedAt: "2026-08-25T18:00:00.000Z",
              finishedAt: "2026-08-25T18:00:03.000Z",
            },
          ]}
        />,
      );

      expect(
        container.querySelector('[data-testid="task-chat-turn"]'),
      ).not.toBeNull();
      expect(
        container.querySelector('[data-testid="task-chat-turn-summary"]')
          ?.textContent,
      ).toContain("Worked");
      expect(
        container.querySelector('[data-testid="task-chat-runner-turn"]'),
      ).toBeNull();
      expect(
        container.querySelector('[data-testid="task-chat-final-response"]'),
      ).toBeNull();
    },
  );

  it.each(DIRECT_ADAPTER_TYPES)(
    "keeps an empty active %s run on the legacy status surface",
    (adapterType) => {
      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          issueStatus="in_progress"
          activeRun={{
            id: `empty-${adapterType}`,
            runtimeMode: "legacy",
            status: "running",
            invocationSource: "issue",
            triggerDetail: null,
            currentStatusMessage: "Preparing direct runtime",
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: null,
            createdAt: "2026-08-25T18:00:00.000Z",
            agentId: "agent-1",
            agentName: "Direct agent",
            adapterType,
          }}
        />,
      );

      const tail = container.querySelector(
        '[data-testid="task-chat-live-transcript"]',
      );
      expect(tail?.textContent).toContain("Preparing direct runtime");
      expect(
        container.querySelector('[data-testid="task-chat-runner-turn"]'),
      ).toBeNull();
      expect(
        container.querySelector('[data-testid="task-chat-composer-takeover"]'),
      ).toBeNull();
    },
  );

  it.each(DIRECT_ADAPTER_TYPES)(
    "keeps durable questions usable for an active %s run without runner controls",
    (adapterType) => {
      render(
        <TaskChatThread
          comments={[]}
          interactions={[
            questionInteraction(
              `question-${adapterType}`,
              "Which legacy path should continue?",
              "2026-08-25T18:00:01.000Z",
            ),
          ]}
          onAdd={async () => {}}
          onSubmitInteractionAnswers={async () => {}}
          issueStatus="in_progress"
          activeRun={{
            id: `question-run-${adapterType}`,
            runtimeMode: "legacy",
            status: "running",
            invocationSource: "issue",
            triggerDetail: null,
            startedAt: "2026-08-25T18:00:00.000Z",
            finishedAt: null,
            createdAt: "2026-08-25T18:00:00.000Z",
            agentId: "agent-1",
            agentName: "Direct agent",
            adapterType,
          }}
        />,
      );

      expect(
        container.querySelector('[data-testid="task-chat-composer-takeover"]')
          ?.textContent,
      ).toContain("Which legacy path should continue?");
      expect(
        container.querySelector('[data-testid="task-chat-runner-turn"]'),
      ).toBeNull();
      expect(
        container.querySelector('[data-testid="task-chat-queued-messages"]'),
      ).toBeNull();
    },
  );
});

describe("TaskChatThread composer alignment", () => {
  it("matches the thread width at every breakpoint", () => {
    render(<TaskChatThread comments={[]} onAdd={async () => {}} />);

    const dock = container
      .querySelector('[data-testid="mock-editor"]')
      ?.closest("div.sticky") as HTMLElement | null;

    expect(dock?.className).toContain("w-full");
    expect(dock?.className).toContain("max-w-(--tc-shell-max-w)");
    expect(dock?.className).not.toContain("md:w-(--pct-80)");
  });

  it("uses master's production composer and gutters when Streamlined UI is off", () => {
    streamlinedState.enabled = false;
    render(<TaskChatThread comments={[]} onAdd={async () => {}} />);

    const dock = container.querySelector(
      '[data-testid="task-chat-composer-dock"]',
    );
    const composer = container.querySelector(".paperclip-task-chat-composer");
    const send = container.querySelector(
      '[data-testid="task-chat-composer-send"]',
    );

    expect(dock?.classList).not.toContain("md:px-0");
    expect(dock?.classList).not.toContain("md:pb-4");
    expect(dock?.classList).toContain("bg-background/80");
    expect(dock?.classList).toContain("pt-1");
    expect(dock?.classList).not.toContain("-mt-(--radius-task-composer)");
    expect(composer?.classList).not.toContain("border");
    expect(composer?.classList).toContain("bg-card");
    expect(send?.classList).toContain("rounded-full");
    expect(send?.classList).not.toContain("rounded-md");
  });
});

describe("TaskChatThread no-live-execution-path recovery", () => {
  const noLivePathComment = {
    id: "comment-no-live-path",
    companyId: "company-1",
    issueId: "issue-1",
    authorType: "system" as const,
    authorAgentId: null,
    authorUserId: null,
    body: "Paperclip retried continuation, but it still has no live execution path.",
    presentation: {
      kind: "system_notice" as const,
      tone: "danger" as const,
      title: "No live execution path",
      detailsDefaultOpen: false,
    },
    metadata: null,
    createdAt: new Date("2026-08-26T12:00:00.000Z"),
    updatedAt: new Date("2026-08-26T12:00:00.000Z"),
  };

  it("offers Try again only while the task is blocked", async () => {
    const onTryAgain = vi.fn();
    const props = {
      comments: [noLivePathComment],
      onAdd: async () => {},
      onTryAgainNoLiveExecutionPath: onTryAgain,
      showComposer: false,
    };

    render(<TaskChatThread {...props} issueStatus="blocked" />);
    const tryAgain = container.querySelector<HTMLButtonElement>(
      '[data-testid="task-chat-no-live-path-try-again"]',
    );
    expect(tryAgain).not.toBeNull();

    flushSync(() => tryAgain!.click());
    await Promise.resolve();
    expect(onTryAgain).toHaveBeenCalledTimes(1);

    render(<TaskChatThread {...props} issueStatus="todo" />);
    expect(
      container.querySelector(
        '[data-testid="task-chat-no-live-path-try-again"]',
      ),
    ).toBeNull();
  });
});

describe("TaskChatThread blocker links", () => {
  it("shows the direct and server-selected terminal blocker at the top and bottom", () => {
    const terminalBlocker = {
      id: "terminal-2",
      identifier: "PAP-777",
      title: "Actual work",
      status: "in_progress" as const,
      priority: "high" as const,
      assigneeAgentId: "agent-2",
      assigneeUserId: null,
    };
    const directBlocker = {
      id: "direct-2",
      identifier: "PAP-600",
      title: "Waiting in review",
      status: "in_review" as const,
      priority: "medium" as const,
      assigneeAgentId: "agent-1",
      assigneeUserId: null,
      terminalBlockers: [terminalBlocker],
    };

    render(
      <TaskChatThread
        comments={createLongThreadComments()}
        onAdd={async () => {}}
        issueStatus="blocked"
        blockedBy={[
          {
            id: "direct-1",
            identifier: "PAP-500",
            title: "Different dependency",
            status: "todo",
            priority: "low",
            assigneeAgentId: null,
            assigneeUserId: null,
          },
          directBlocker,
        ]}
        blockerAttention={{
          state: "needs_attention",
          reason: "attention_required",
          unresolvedBlockerCount: 2,
          coveredBlockerCount: 0,
          stalledBlockerCount: 0,
          attentionBlockerCount: 1,
          sampleBlockerIdentifier: "PAP-777",
          sampleStalledBlockerIdentifier: null,
          terminalBlockerIssueId: terminalBlocker.id,
        }}
      />,
    );

    const notices = container.querySelectorAll(
      '[data-testid="task-chat-blocker-links"]',
    );
    expect(notices).toHaveLength(2);
    expect(notices[0]?.getAttribute("data-placement")).toBe("top");
    expect(notices[1]?.getAttribute("data-placement")).toBe("bottom");
    expect(notices[0]?.textContent).toContain(
      "Blocked byPAP-600Waiting in review",
    );
    expect(notices[0]?.textContent).toContain("Root blockerPAP-777Actual work");
    expect(notices[1]?.textContent).toContain(
      "Still blocked byPAP-600Waiting in review",
    );
    expect(notices[1]?.textContent).toContain(
      "Root blocker remainsPAP-777Actual work",
    );
    for (const notice of notices) {
      expect(notice.querySelector('a[href="/issues/PAP-600"]')).not.toBeNull();
      expect(notice.querySelector('a[href="/issues/PAP-777"]')).not.toBeNull();
    }
    expect(container.textContent).not.toContain("Different dependency");
    expect(container.textContent).not.toContain(
      "This task resumes automatically",
    );
  });

  it("shows the ordered live-work queue at the top and bottom", () => {
    const terminalBlocker = {
      id: "terminal-running",
      identifier: "PAP-17426",
      title: "Restore live alias projection",
      status: "in_progress" as const,
      priority: "high" as const,
      assigneeAgentId: "agent-3",
      assigneeUserId: null,
    };

    render(
      <TaskChatThread
        comments={createLongThreadComments()}
        onAdd={async () => {}}
        issueStatus="blocked"
        liveIssueIds={new Set(["direct-running", "terminal-running"])}
        blockerAttention={{
          state: "covered",
          reason: "active_dependency",
          unresolvedBlockerCount: 2,
          coveredBlockerCount: 2,
          stalledBlockerCount: 0,
          attentionBlockerCount: 0,
          sampleBlockerIdentifier: "PAP-17426",
          sampleStalledBlockerIdentifier: null,
          blockingTreeLive: true,
          directBlockerIssueId: "direct-running",
          terminalBlockerIssueId: terminalBlocker.id,
          terminalBlocker,
        }}
        blockedBy={[
          {
            id: "direct-queued",
            identifier: "PAP-17427",
            title: "Verify the completed projection",
            status: "todo",
            priority: "medium",
            assigneeAgentId: "agent-4",
            assigneeUserId: null,
          },
          {
            id: "direct-running",
            identifier: "PAP-17425",
            title: "Verify the live projection",
            status: "in_progress",
            priority: "medium",
            assigneeAgentId: "agent-2",
            assigneeUserId: null,
            terminalBlockers: [terminalBlocker],
          },
          {
            id: "direct-done",
            identifier: "PAP-17424",
            title: "Run the guarded cutover",
            status: "done",
            priority: "medium",
            assigneeAgentId: "agent-1",
            assigneeUserId: null,
          },
        ]}
      />,
    );

    const notices = container.querySelectorAll(
      '[data-testid="task-chat-live-work-links"]',
    );
    expect(notices).toHaveLength(2);
    expect(notices[0]?.getAttribute("data-placement")).toBe("top");
    expect(notices[1]?.getAttribute("data-placement")).toBe("bottom");
    expect(notices[0]?.textContent).toContain("Waiting on live work");
    expect(notices[1]?.textContent).toContain("Still waiting on live work");
    for (const notice of notices) {
      const orderedLinks = [
        ...notice.querySelectorAll(
          '[data-testid="task-chat-live-work-step"] a',
        ),
      ].map((link) => link.textContent);
      expect(orderedLinks).toEqual([
        "PAP-17424Run the guarded cutover",
        "PAP-17425Verify the live projection",
        "PAP-17427Verify the completed projection",
      ]);
      expect(notice.textContent).toContain(
        "Now runningPAP-17426Restore live alias projection",
      );
      expect(
        notice.querySelector('a[href="/issues/PAP-17426"]'),
      ).not.toBeNull();
      expect(
        notice.querySelector('[data-testid="task-chat-live-work-step"] > a'),
      ).not.toBeNull();
      expect(
        notice.querySelector('[data-testid="task-chat-live-work-step"] > span'),
      ).toBeNull();
    }
    expect(
      container.querySelector('[data-testid="task-chat-blocker-links"]'),
    ).toBeNull();
  });

  it("keeps the compact blocker rows when covered work is no longer live", () => {
    render(
      <TaskChatThread
        comments={createLongThreadComments()}
        onAdd={async () => {}}
        issueStatus="blocked"
        liveIssueIds={new Set()}
        blockerAttention={{
          state: "covered",
          reason: "active_dependency",
          unresolvedBlockerCount: 1,
          coveredBlockerCount: 1,
          stalledBlockerCount: 0,
          attentionBlockerCount: 0,
          sampleBlockerIdentifier: "PAP-500",
          sampleStalledBlockerIdentifier: null,
          blockingTreeLive: false,
        }}
        blockedBy={[
          {
            id: "direct-1",
            identifier: "PAP-500",
            title: "Direct dependency",
            status: "todo",
            priority: "medium",
            assigneeAgentId: "agent-1",
            assigneeUserId: null,
          },
        ]}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-live-work-links"]'),
    ).toBeNull();
    expect(
      container.querySelectorAll('[data-testid="task-chat-blocker-links"]'),
    ).toHaveLength(2);
  });

  it("shows only the direct row when the blocker has no deeper unresolved leaf", () => {
    render(
      <TaskChatThread
        comments={createLongThreadComments()}
        onAdd={async () => {}}
        issueStatus="blocked"
        blockedBy={[
          {
            id: "direct-1",
            identifier: "PAP-500",
            title: "Direct dependency",
            status: "in_progress",
            priority: "medium",
            assigneeAgentId: "agent-1",
            assigneeUserId: null,
          },
        ]}
      />,
    );

    expect(
      container.querySelectorAll('[data-testid="task-chat-blocker-links"]'),
    ).toHaveLength(2);
    expect(container.textContent).toContain(
      "Blocked byPAP-500Direct dependency",
    );
    expect(container.textContent).not.toContain("Ultimately blocked by");
    expect(container.textContent).not.toContain("Root blocker");
  });

  it("keeps a server-selected intermediate blocker on its direct chain", () => {
    const selectedIntermediate = {
      id: "intermediate-2",
      identifier: "PAP-650",
      title: "Stalled intermediate review",
    };
    const selectedDirect = {
      id: "direct-2",
      identifier: "PAP-600",
      title: "Selected dependency",
      status: "blocked" as const,
      priority: "medium" as const,
      assigneeAgentId: "agent-1",
      assigneeUserId: null,
      terminalBlockers: [
        {
          id: "leaf-2",
          identifier: "PAP-700",
          title: "Deeper structural leaf",
          status: "todo" as const,
          priority: "medium" as const,
          assigneeAgentId: "agent-2",
          assigneeUserId: null,
        },
      ],
    };

    render(
      <TaskChatThread
        comments={createLongThreadComments()}
        onAdd={async () => {}}
        issueStatus="blocked"
        blockedBy={[
          {
            id: "direct-1",
            identifier: "PAP-500",
            title: "Unrelated dependency",
            status: "todo",
            priority: "low",
            assigneeAgentId: null,
            assigneeUserId: null,
          },
          selectedDirect,
        ]}
        blockerAttention={{
          state: "stalled",
          reason: "stalled_review",
          unresolvedBlockerCount: 2,
          coveredBlockerCount: 0,
          stalledBlockerCount: 1,
          attentionBlockerCount: 1,
          sampleBlockerIdentifier: "PAP-650",
          sampleStalledBlockerIdentifier: "PAP-650",
          directBlockerIssueId: selectedDirect.id,
          terminalBlockerIssueId: selectedIntermediate.id,
          terminalBlocker: selectedIntermediate,
        }}
      />,
    );

    const notices = container.querySelectorAll(
      '[data-testid="task-chat-blocker-links"]',
    );
    expect(notices[0]?.textContent).toContain(
      "Blocked byPAP-600Selected dependency",
    );
    expect(notices[0]?.textContent).toContain(
      "Root blockerPAP-650Stalled intermediate review",
    );
    expect(notices[1]?.textContent).toContain(
      "Still blocked byPAP-600Selected dependency",
    );
    expect(notices[1]?.textContent).toContain(
      "Root blocker remainsPAP-650Stalled intermediate review",
    );
    expect(container.textContent).not.toContain("Unrelated dependency");
    expect(container.textContent).not.toContain("Deeper structural leaf");
  });

  it("auto-follows the new bottom blocker row when a pinned thread becomes blocked", () => {
    const directBlocker = {
      id: "direct-1",
      identifier: "PAP-500",
      title: "Direct dependency",
      status: "in_progress" as const,
      priority: "medium" as const,
      assigneeAgentId: "agent-1",
      assigneeUserId: null,
    };
    const baseProps = {
      comments: createLongThreadComments(),
      onAdd: async () => {},
      blockedBy: [directBlocker],
    };

    render(<TaskChatThread {...baseProps} issueStatus="in_progress" />);
    const scroller = container.querySelector<HTMLElement>(
      '[data-testid="task-chat-scroller"]',
    )!;
    fakeScrollGeometry(scroller);

    render(<TaskChatThread {...baseProps} issueStatus="blocked" />);

    expect(scroller.scrollTop).toBe(scroller.scrollHeight);
  });

  it("keeps a short blocked thread to one top affordance", () => {
    render(
      <TaskChatThread
        comments={createLongThreadComments().slice(0, 1)}
        onAdd={async () => {}}
        issueStatus="blocked"
        blockedBy={[
          {
            id: "direct-1",
            identifier: "PAP-500",
            title: "Direct dependency",
            status: "todo",
            priority: "medium",
            assigneeAgentId: null,
            assigneeUserId: null,
          },
        ]}
      />,
    );

    const notices = container.querySelectorAll(
      '[data-testid="task-chat-blocker-links"]',
    );
    expect(notices).toHaveLength(1);
    expect(notices[0]?.getAttribute("data-placement")).toBe("top");
  });

  it("does not show blocker rows outside the blocked state", () => {
    render(
      <TaskChatThread
        comments={createLongThreadComments()}
        onAdd={async () => {}}
        issueStatus="in_progress"
        blockedBy={[
          {
            id: "direct-1",
            identifier: "PAP-500",
            title: "Direct dependency",
            status: "in_progress",
            priority: "medium",
            assigneeAgentId: "agent-1",
            assigneeUserId: null,
          },
        ]}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-blocker-links"]'),
    ).toBeNull();
  });
});

describe("TaskChatThread queued message actions", () => {
  it("interrupts the exact run that a persisted queued message is waiting behind", () => {
    const onInterruptQueued = vi.fn(async () => {});
    const queuedComment = {
      id: "comment-queued",
      companyId: "company-1",
      issueId: "issue-1",
      authorType: "user" as const,
      authorAgentId: null,
      authorUserId: "user-1",
      body: "Use the latest requirements instead.",
      presentation: null,
      metadata: null,
      queueState: "queued" as const,
      queueTargetRunId: "run-active",
      createdAt: new Date("2026-08-14T12:00:00.000Z"),
      updatedAt: new Date("2026-08-14T12:00:00.000Z"),
    };

    render(
      <TaskChatThread
        comments={[queuedComment]}
        onAdd={async () => {}}
        onInterruptQueued={onInterruptQueued}
      />,
    );

    const interrupt = [...container.querySelectorAll("button")].find(
      (button) => button.textContent === "Interrupt",
    );
    expect(container.textContent).toContain("Queued");
    expect(interrupt).not.toBeUndefined();

    flushSync(() => interrupt!.click());
    expect(onInterruptQueued).toHaveBeenCalledOnce();
    expect(onInterruptQueued).toHaveBeenCalledWith("run-active");
  });

  it("disables the action while the queued run is being interrupted", () => {
    render(
      <TaskChatThread
        comments={[
          {
            id: "comment-queued",
            companyId: "company-1",
            issueId: "issue-1",
            authorType: "user",
            authorAgentId: null,
            authorUserId: "user-1",
            body: "Use the latest requirements instead.",
            presentation: null,
            metadata: null,
            clientStatus: "queued",
            queueTargetRunId: "run-active",
            createdAt: new Date("2026-08-14T12:00:00.000Z"),
            updatedAt: new Date("2026-08-14T12:00:00.000Z"),
          },
        ]}
        onAdd={async () => {}}
        onInterruptQueued={async () => {}}
        interruptingQueuedRunId="run-active"
      />,
    );

    const interrupting = [...container.querySelectorAll("button")].find(
      (button) => button.textContent === "Interrupting…",
    );
    expect(interrupting).not.toBeUndefined();
    expect(interrupting?.disabled).toBe(true);
  });
});

describe("TaskChatThread Paperclip Runner queue", () => {
  const queuedComment = {
    id: "queued-prp-1",
    companyId: "company-1",
    issueId: "issue-1",
    authorType: "user" as const,
    authorAgentId: null,
    authorUserId: "user-1",
    body: "Render this queued message exactly once.",
    presentation: null,
    metadata: null,
    createdAt: new Date("2026-08-22T15:00:00.000Z"),
    updatedAt: new Date("2026-08-22T15:00:00.000Z"),
  };
  const queue: IssueQueuedCommentQueue = {
    issueId: "issue-1",
    queueId: "wake-1",
    state: "deferred",
    targetRunId: "run-1",
    revision: "revision-1",
    protocol: "paperclip_runner_v1",
    steeringDisposition: "available",
    entries: [
      { comment: queuedComment, position: 0, canEdit: true, canDiscard: true },
    ],
  };

  function occurrenceCount(text: string) {
    return container.textContent?.split(text).length! - 1;
  }

  it("hides queued actions while paused and restores the queue after resume", () => {
    const onSteerQueuedComment = vi.fn(async () => {});
    const props = {
      comments: [queuedComment],
      onAdd: async () => {},
      queuedCommentQueue: queue,
      onEditQueuedComment: async () => {},
      onReorderQueuedComments: async () => {},
      onSteerQueuedComment,
      onDiscardQueuedComment: async () => {},
    };
    render(<TaskChatThread {...props} />);
    expect(container.querySelector('[data-testid="task-chat-queued-messages"]')).not.toBeNull();

    render(<TaskChatThread {...props} composerPause={{ scope: "leaf", onResume: () => {} }} />);
    expect(container.querySelector('[data-testid="paused-composer-takeover"]')).not.toBeNull();
    expect(container.querySelector('[data-testid="task-chat-queued-messages"]')).toBeNull();
    expect(onSteerQueuedComment).not.toHaveBeenCalled();

    render(<TaskChatThread {...props} />);
    expect(container.querySelector('[data-testid="task-chat-queued-messages"]')).not.toBeNull();
    expect(occurrenceCount(queuedComment.body)).toBe(1);
  });

  it("hides legacy transcript interrupt actions while paused", () => {
    render(<TaskChatThread
      comments={[{ ...queuedComment, queueState: "queued", queueTargetRunId: "run-1" }]}
      onAdd={async () => {}}
      onInterruptQueued={async () => {}}
      composerPause={{ scope: "leaf", onResume: () => {} }}
    />);
    expect(container.querySelector('[data-testid="paused-composer-takeover"]')).not.toBeNull();
    expect([...container.querySelectorAll("button")].some((button) => button.textContent === "Interrupt")).toBe(false);
  });

  it("suppresses the transcript echo until the queued entry is consumed", async () => {
    const props = {
      comments: [queuedComment],
      onAdd: async () => {},
      queuedCommentQueue: queue,
      onEditQueuedComment: async () => {},
      onReorderQueuedComments: async () => {},
      onSteerQueuedComment: async () => {},
      onDiscardQueuedComment: async () => {},
    };
    render(<TaskChatThread {...props} />);

    const stack = container.querySelector(
      '[data-testid="task-chat-composer-stack"]',
    );
    const queuePane = container.querySelector(
      '[data-testid="task-chat-queued-messages"]',
    );
    expect(queuePane?.parentElement).toBe(stack);
    expect(stack?.classList).not.toContain("gap-2");
    expect(
      container.querySelector(
        '[data-testid="task-chat-queued-message-queued-prp-1"]',
      ),
    ).not.toBeNull();
    expect(occurrenceCount(queuedComment.body)).toBe(1);

    await act(async () => {
      render(
        <TaskChatThread
          {...props}
          queuedCommentQueue={{ ...queue, revision: "revision-2", entries: [] }}
        />,
      );
      await Promise.resolve();
    });

    expect(
      container.querySelector(
        '[data-testid="task-chat-queued-message-queued-prp-1"]',
      ),
    ).toBeNull();
    expect(occurrenceCount(queuedComment.body)).toBe(1);
  });

  it.each(["run-1", null])("keeps legacy queued delivery available with target %s", (targetRunId) => {
    const onInterruptQueued = vi.fn(async () => {});
    render(
      <TaskChatThread
        comments={[
          {
            ...queuedComment,
            clientStatus: "queued",
            queueTargetRunId: "run-1",
          },
        ]}
        onAdd={async () => {}}
        onInterruptQueued={onInterruptQueued}
        queuedCommentQueue={{
          ...queue,
          targetRunId,
          protocol: "legacy",
          steeringDisposition: "unsupported",
        }}
        onEditQueuedComment={async () => {}}
        onReorderQueuedComments={async () => {}}
        onSteerQueuedComment={async () => {}}
        onDiscardQueuedComment={async () => {}}
      />,
    );

    expect(
      container.querySelector(
        '[data-testid="task-chat-queued-message-queued-prp-1"]',
      ),
    ).not.toBeNull();
    expect(occurrenceCount(queuedComment.body)).toBe(1);
    expect(container.textContent).not.toContain("QueuedInterrupt");

    const interrupt = container.querySelector<HTMLButtonElement>(
      '[data-testid="task-chat-queued-interrupt-queued-prp-1"]',
    );
    expect(interrupt).not.toBeNull();
    flushSync(() => interrupt!.click());
    expect(onInterruptQueued).toHaveBeenCalledWith(targetRunId);
  });

  it("cancels an optimistic queued row locally before server acknowledgement", async () => {
    const onCancelQueued = vi.fn();
    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        onCancelQueued={onCancelQueued}
        queuedCommentQueue={{
          ...queue,
          queueId: null,
          entries: [
            {
              ...queue.entries[0],
              comment: {
                ...queuedComment,
                id: "optimistic-local-1",
                body: "Delete before acknowledgement",
              },
              canEdit: false,
            },
          ],
        }}
        onEditQueuedComment={async () => {}}
        onReorderQueuedComments={async () => {}}
        onSteerQueuedComment={async () => {}}
        onDiscardQueuedComment={async () => {}}
      />,
    );

    await act(async () => {
      container
        .querySelector<HTMLButtonElement>(
          '[data-testid="task-chat-queued-discard-optimistic-local-1"]',
        )
        ?.click();
    });

    expect(onCancelQueued).toHaveBeenCalledWith("optimistic-local-1");
    expect(
      container.querySelector(
        '[data-testid="task-chat-queued-message-optimistic-local-1"]',
      ),
    ).toBeNull();
  });
});

describe("TaskChatThread mobile composer dock (PAP-495)", () => {
  it("pins the composer to the nav-aware bottom offset so its action row clears the auto-hiding bottom nav", () => {
    sidebarState.isMobile = true;

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        draftKey="task-chat-draft:issue-mobile"
      />,
    );

    const dock = container
      .querySelector('[data-testid="mock-editor"]')
      ?.closest("div.sticky") as HTMLElement | null;

    expect(dock).not.toBeNull();
    // Bottom offset comes from --tc-composer-bottom (Layout raises it to the nav
    // height while the nav is on screen) — NOT the raw safe-area dock, which is
    // what let the nav occlude the action row before PAP-495.
    expect(dock?.className).toContain("bottom-(--tc-composer-bottom)");
    expect(dock?.className).not.toContain("bottom-(--sz-calc-8)");
  });
});

describe("TaskChatThread live transcript", () => {
  it("places the turn status island below composer accessories and hides it when the turn is terminal", () => {
    nativeTranscriptState.transcriptByRun.set("run-status", [
      {
        kind: "provider_activity",
        ts: "2026-08-24T12:00:01.000Z",
        family: "plan",
        eventType: "plan.updated",
        status: "running",
        title: "Plan",
        payload: {
          planId: "turn-1",
          steps: [
            { stepId: "one", body: "Inspect", status: "completed" },
            { stepId: "two", body: "Build", status: "in_progress" },
          ],
        },
      },
      {
        kind: "workspace_change",
        ts: "2026-08-24T12:00:02.000Z",
        changeSetId: "turn-1:workspace",
        revision: 1,
        source: "harness_reported",
        complete: false,
        files: [
          {
            path: "ui/src/App.tsx",
            operation: "modify",
            previousPath: null,
            additions: 4,
            deletions: 1,
            binary: false,
            diff: null,
          },
        ],
        totals: { files: 1, additions: 4, deletions: 1 },
        patchArtifactRef: null,
      },
    ]);
    const activeRun = {
      id: "run-status",
      status: "running" as const,
      invocationSource: "issue" as const,
      triggerDetail: null,
      startedAt: "2026-08-24T12:00:00.000Z",
      finishedAt: null,
      createdAt: "2026-08-24T12:00:00.000Z",
      agentId: "agent-1",
      agentName: "Codex",
      adapterType: "paperclip_runner",
      runtimeMode: "native" as const,
    };

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={activeRun}
        composerAccessory={<div data-testid="composer-accessory">Monitor</div>}
      />,
    );

    const dock = container.querySelector(
      '[data-testid="task-chat-composer-dock"]',
    )!;
    const accessory = container.querySelector(
      '[data-testid="composer-accessory"]',
    )!;
    const island = container.querySelector(
      '[data-testid="task-chat-turn-status-island"]',
    )!;
    const stack = container.querySelector(
      '[data-testid="task-chat-composer-stack"]',
    )!;
    expect(island.textContent).toContain("Step 2 / 2");
    expect(island.textContent).toContain("1 file changed");
    expect(accessory.compareDocumentPosition(island)).toBe(
      Node.DOCUMENT_POSITION_FOLLOWING,
    );
    expect(island.compareDocumentPosition(stack)).toBe(
      Node.DOCUMENT_POSITION_FOLLOWING,
    );
    expect(dock.contains(island)).toBe(true);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          ...activeRun,
          status: "succeeded",
          finishedAt: "2026-08-24T12:01:00.000Z",
        }}
      />,
    );
    expect(
      container.querySelector('[data-testid="task-chat-turn-status-island"]'),
    ).toBeNull();
  });

  it("keeps an unlinked persisted runner reply hidden while the live turn still owns that response", () => {
    nativeTranscriptState.transcriptByRun.set("run-runner", [
      {
        kind: "assistant",
        ts: "2026-08-21T15:44:20.000Z",
        text: "Completed the requested streaming test.",
        channel: "final",
        delta: true,
      },
    ]);
    const comment = {
      id: "comment-runner",
      companyId: "company-1",
      issueId: "issue-1",
      authorType: "agent" as const,
      authorAgentId: "agent-1",
      authorUserId: null,
      body: "Completed the requested streaming test.",
      presentation: null,
      metadata: null,
      runId: null,
      createdAt: new Date("2026-08-21T15:44:22.000Z"),
      updatedAt: new Date("2026-08-21T15:44:22.000Z"),
    };

    render(
      <TaskChatThread
        comments={[comment]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          id: "run-runner",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-21T15:44:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-21T15:44:00.000Z",
          agentId: "agent-1",
          agentName: "Runner",
          adapterType: "paperclip_runner",
          runtimeMode: "native",
        }}
      />,
    );

    expect(
      container.textContent?.match(/Completed the requested streaming test\./g),
    ).toHaveLength(1);
    expect(
      container.querySelectorAll('[data-testid="task-chat-agent-bubble"]'),
    ).toHaveLength(1);
    expect(
      container.querySelector('[data-testid="task-chat-live-transcript"]'),
    ).not.toBeNull();
  });

  it("surfaces the live runtime status while no transcript has streamed yet", () => {
    // Sandbox runs spend their first minutes in preparation phases (config
    // seed, workspace sync) with zero transcript entries. The tail must show
    // the run's runtime-progress status instead of an opaque wait message.
    const baseRun = {
      id: "run-prep",
      status: "running" as const,
      invocationSource: "issue" as const,
      triggerDetail: null,
      startedAt: "2026-08-07T00:00:00.000Z",
      finishedAt: null,
      createdAt: "2026-08-07T00:00:00.000Z",
      agentId: "agent-1",
      agentName: "Coder",
      adapterType: "claude_local",
    };

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          ...baseRun,
          currentStatusMessage: "Syncing workspace to environment",
        }}
      />,
    );

    const tail = container.querySelector(
      '[data-testid="task-chat-live-transcript"]',
    );
    expect(tail).not.toBeNull();
    expect(tail!.textContent).toContain("Syncing workspace to environment");
    expect(tail!.textContent).not.toContain("Waiting for transcript...");

    // Without a runtime status, the generic wait message still shows.
    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{ ...baseRun, id: "run-prep-2" }}
      />,
    );
    const tail2 = container.querySelector(
      '[data-testid="task-chat-live-transcript"]',
    );
    expect(tail2!.textContent).toContain("Waiting for transcript...");
  });

  it("does not send a workspace bootstrap failure to connection settings", () => {
    const run = { id: "workspace-prep", status: "running" as const, invocationSource: "issue", triggerDetail: null,
      startedAt: "2026-09-15T10:00:00Z", finishedAt: null, createdAt: "2026-09-15T10:00:00Z",
      agentId: "agent-1", agentName: "Worker", adapterType: "process" };
    render(<TaskChatThread comments={[]} onAdd={async () => {}} issueStatus="in_progress" activeRun={run} />);
    render(<TaskChatThread comments={[]} onAdd={async () => {}} issueStatus="in_progress" linkedRuns={[
      { ...run, runId: run.id, status: "failed", errorCode: "workspace_git_scan_timeout", finishedAt: "2026-09-15T10:00:10Z" },
    ]} />);
    expect(container.textContent).toContain("Workspace setup failed before the agent started.");
    expect(container.textContent).not.toContain("Review the task’s connection");
  });

  it("renders in-flight output through TaskChatLiveTail, dropping the debug plumbing (PAP-463 C1)", () => {
    // Interleave the exact noise the old RunTranscriptView tail surfaced (init
    // row, stdout/stderr/system dumps) with real content. Only the streamed
    // reply markdown and the tool row may reach the thread.
    transcriptState.transcriptByRun.set("run-1", [
      {
        kind: "init",
        ts: "2026-08-07T00:00:00.000Z",
        model: "claude",
        sessionId: "sess-INITMARKER",
      },
      {
        kind: "system",
        ts: "2026-08-07T00:00:00.000Z",
        text: "SYSTEMNOISE environment hint",
      },
      {
        kind: "stdout",
        ts: "2026-08-07T00:00:00.000Z",
        text: "STDOUTNOISE raw json dump",
      },
      {
        kind: "stderr",
        ts: "2026-08-07T00:00:00.000Z",
        text: "STDERRNOISE adapter timeout note",
      },
      {
        kind: "assistant",
        ts: "2026-08-07T00:00:00.000Z",
        text: "Streaming through the shared renderer",
      },
      {
        kind: "tool_call",
        ts: "2026-08-07T00:00:00.000Z",
        name: "Read",
        toolUseId: "t1",
        input: { file_path: "src/app.ts" },
      },
    ]);

    render(
      <TaskChatThread
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          id: "run-1",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-07T00:00:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-07T00:00:00.000Z",
          agentId: "agent-1",
          agentName: "Coder",
          adapterType: "codex_local",
        }}
      />,
    );

    const tail = container.querySelector(
      '[data-testid="task-chat-live-transcript"]',
    );
    expect(tail).not.toBeNull();
    // Clean content survives: streamed reply markdown + compact phase summary.
    expect(tail!.textContent).toContain(
      "Streaming through the shared renderer",
    );
    const phaseSummary = tail!.querySelector<HTMLButtonElement>(
      '[data-testid="task-chat-activity-phase-toggle"]',
    );
    expect(phaseSummary?.getAttribute("aria-expanded")).toBe("false");
    expect(tail!.textContent).toContain("src/app.ts");
    // None of the debug plumbing reaches the thread.
    for (const noise of [
      "INITMARKER",
      "SYSTEMNOISE",
      "STDOUTNOISE",
      "STDERRNOISE",
    ]) {
      expect(container.textContent).not.toContain(noise);
    }
  });

  it.each([false, true])("resolves canonical input with stale adapter metadata (saved card: %s)", async (hasSavedCard) => {
    transcriptState.transcriptByRun.set("run-input", [
      {
        kind: "runtime_request",
        ts: "2026-08-23T20:00:00.000Z",
        requestId: "question-1",
        requestKind: "runtime",
        turnId: "turn-1",
        requestType: "input",
        status: "pending",
        prompt: "Codex needs your input.",
        choices: [],
        fields: [],
        questionSet: {
          schema: "paperclip.question_set.v1",
          questions: [
            {
              id: "goal",
              prompt: "What should the server do?",
              required: true,
              answerMode: "single_select",
              options: [{ id: "api", label: "Starter API" }, { id: "worker", label: "Background worker" }],
            },
          ],
        },
      },
    ]);
    const resolveRuntimeRequest = vi
      .spyOn(heartbeatsApi, "resolveRuntimeRequest")
      .mockResolvedValue({} as never);

    const onSubmitInteractionAnswers = vi.fn().mockResolvedValue(undefined);
    const saved = {
      ...questionInteraction("saved-question", "What should the server do?", "2026-08-23T20:00:00.000Z"),
      sourceRunId: "run-input", continuationPolicy: "none",
      payload: { version: 1, runtimeRequestId: "question-1",
        questionSet: transcriptState.transcriptByRun.get("run-input")[0].questionSet,
        questions: [{ id: "goal", prompt: "What should the server do?", required: true, selectionMode: "single",
          options: [{ id: "api", label: "Starter API" }, { id: "worker", label: "Background worker" }] }] },
    } as IssueThreadInteraction;
    render(
      <TaskChatThread
        interactions={hasSavedCard ? [saved] : []}
        onSubmitInteractionAnswers={onSubmitInteractionAnswers}
        comments={[]}
        onAdd={async () => {}}
        issueStatus="in_progress"
        activeRun={{
          id: "run-input",
          status: "running",
          invocationSource: "issue",
          triggerDetail: null,
          startedAt: "2026-08-23T20:00:00.000Z",
          finishedAt: null,
          createdAt: "2026-08-23T20:00:00.000Z",
          agentId: "agent-1",
          agentName: "Runner",
          // Reproduces the lag that caused DOT-202: the transcript already has
          // a Paperclip request while the linked-run adapter classification is
          // still stale.
          adapterType: "codex_local",
        }}
      />,
    );

    const option = Array.from(container.querySelectorAll("button")).find(
      (button) => button.textContent?.includes("Starter API"),
    );
    await act(async () => option?.click());
    const submit = Array.from(container.querySelectorAll("button")).find(
      (button) => button.textContent?.trim() === "Submit answers",
    );
    await act(async () => submit?.click());

    if (hasSavedCard) {
      expect(resolveRuntimeRequest).not.toHaveBeenCalled();
      expect(onSubmitInteractionAnswers).toHaveBeenCalledWith(saved, [{ questionId: "goal", optionIds: ["api"] }]);
    } else expect(resolveRuntimeRequest).toHaveBeenCalledWith({
      runId: "run-input",
      requestId: "question-1",
      turnId: "turn-1",
      requestKind: "runtime",
      resolution: {
        action: "submit",
        response: {
          schema: "paperclip.question_response.v1",
          answers: { goal: { selectedOptionIds: ["api"] } },
        },
      },
    });
    expect(container.textContent).not.toContain("no longer attached");
  });

  it.each(["done", "yielded"])(
    "renders one native turn while its completion comment refresh is delayed: %s",
    (disposition) => {
      const runId = "native-delayed-comment";
      const summary = "DELAYED-CANONICAL-REPLY";
      nativeTranscriptState.transcriptByRun.set(runId, [
        {
          kind: "assistant",
          ts: "2026-08-07T00:00:01Z",
          text: "UNIQUE-PROGRESS-LINE",
          channel: "progress",
        },
        {
          kind: "assistant",
          ts: "2026-08-07T00:00:02Z",
          text: summary,
          channel: "final",
        },
        {
          kind: "run_result",
          ts: "2026-08-07T00:00:03Z",
          disposition,
          summary,
          objectiveSatisfied: true,
          verification: [],
          remainingWork: [],
          blocker: null,
          artifacts: [],
          ...(disposition === "yielded"
            ? {
                acceptedResponseWake: {
                  runId,
                  sourceEventId: "accepted-result",
                },
              }
            : {}),
        },
        {
          kind: "run_terminal",
          ts: "2026-08-07T00:00:04Z",
          turnState: "completed",
          runState: "succeeded",
          disposition,
        },
      ]);
      const activeRun = {
        id: runId,
        runtimeMode: "native" as const,
        status: "running",
        invocationSource: "issue" as const,
        triggerDetail: null,
        startedAt: "2026-08-07T00:00:00Z",
        createdAt: "2026-08-07T00:00:00Z",
        finishedAt: null,
        agentId: "agent-1",
        agentName: "Runner",
        adapterType: "paperclip_runner",
      };
      const linkedRun = {
        ...activeRun,
        runId,
        status: "succeeded",
        finishedAt: "2026-08-07T00:00:05Z",
        resultJson: {
          nativeResult: {
            schema: "paperclip.run_result.v1",
            reportedWorkDisposition: disposition,
            summary,
          },
          presentationDecision: {
            schema: "paperclip.run_presentation_decision.v1",
            chosenSource: "existing_issue_comment",
            commentId: "delayed-comment",
          },
        },
      };
      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          issueStatus="in_progress"
          activeRun={activeRun}
        />,
      );
      // The terminal run/event query wins the race, but the canonical comment
      // request is still pending. The settled answer already owns the turn.
      render(
        <TaskChatThread
          comments={[]}
          onAdd={async () => {}}
          issueStatus="in_progress"
          linkedRuns={[linkedRun]}
        />,
      );
      expect(container.textContent?.split("UNIQUE-PROGRESS-LINE")).toHaveLength(
        2,
      );
      expect(container.textContent?.split(summary)).toHaveLength(2);
      expect(
        container.querySelector('[data-testid="task-chat-live-transcript"]'),
      ).toBeNull();
      render(
        <TaskChatThread
          comments={[
            {
              id: "delayed-comment",
              companyId: "company-1",
              issueId: "issue-1",
              authorType: "agent",
              authorAgentId: "agent-1",
              authorUserId: null,
              createdByRunId: runId,
              runId,
              body: summary,
              presentation: null,
              metadata: null,
              createdAt: new Date("2026-08-07T00:00:05Z"),
              updatedAt: new Date("2026-08-07T00:00:05Z"),
            },
          ]}
          onAdd={async () => {}}
          issueStatus="in_progress"
          linkedRuns={[linkedRun]}
        />,
      );
      expect(container.textContent?.split("UNIQUE-PROGRESS-LINE")).toHaveLength(
        2,
      );
      expect(container.textContent?.split(summary)).toHaveLength(2);
      expect(
        container.querySelector('[data-testid="task-chat-final-response"]'),
      ).toBeNull();
    },
  );

  it("keeps the transcript mounted through run settle until the settled turn renders (PAP-462 B4)", () => {
    transcriptState.transcriptByRun.set("run-1", [
      {
        kind: "assistant",
        ts: "2026-08-07T00:00:00.000Z",
        text: "Last words before the run stops",
      },
    ]);

    const liveProps = {
      comments: [] as never[],
      onAdd: async () => {},
      issueStatus: "in_progress",
      activeRun: {
        id: "run-1",
        status: "running",
        invocationSource: "issue" as const,
        triggerDetail: null,
        startedAt: "2026-08-07T00:00:00.000Z",
        finishedAt: null,
        createdAt: "2026-08-07T00:00:00.000Z",
        agentId: "agent-1",
        agentName: "Coder",
        adapterType: "codex_local",
      },
    };

    render(<TaskChatThread {...liveProps} />);
    expect(
      container.querySelector('[data-testid="task-chat-live-transcript"]'),
    ).not.toBeNull();

    // The run settles: the issue goes terminal and the run reports succeeded, so
    // `liveRun` flips to null — but no reply comment has landed yet. The
    // transcript must NOT vanish; it stays mounted (now as a settled tail) until
    // its settled turn/comment renders.
    render(
      <TaskChatThread
        {...liveProps}
        issueStatus="done"
        activeRun={{
          ...liveProps.activeRun,
          status: "succeeded",
          finishedAt: "2026-08-07T00:01:00.000Z",
        }}
      />,
    );

    expect(
      container.querySelector('[data-testid="task-chat-live-transcript"]'),
    ).not.toBeNull();
    expect(container.textContent).toContain("Last words before the run stops");
    // The pill has settled to its "Worked" state rather than flipping back to a
    // spinner while it waits for the reply comment.
    expect(container.textContent).toContain("Worked");
  });
});

describe("TaskChatThread composer execution controls", () => {
  it.each(["process", "paperclip_runner"])("passes the task's stop action through for %s execution", async (adapterType) => {
    const onStop = vi.fn(async () => {});
    const run = {
      id: "task-run", status: "running", runtimeMode: adapterType === "process" ? "legacy" as const : "native" as const,
      invocationSource: "issue", triggerDetail: null, startedAt: "2026-09-09T12:00:00Z", finishedAt: null,
      createdAt: "2026-09-09T12:00:00Z", agentId: "agent-1", agentName: "Alex", adapterType,
    };
    render(<TaskChatThread comments={[]} onAdd={async () => {}} issueStatus="in_progress" activeRun={run} onCancelRun={onStop} stopScope="subtree" />);
    const button = container.querySelector<HTMLButtonElement>('[data-testid="task-chat-composer-stop"]')!;
    expect(button.title).toBe("Stop response");
    await act(async () => { button.click(); });
    expect(onStop).toHaveBeenCalledOnce();
    render(<TaskChatThread comments={[]} onAdd={async () => {}} issueStatus="in_progress" activeRun={run} onCancelRun={onStop} stopPending />);
    expect(container.querySelector<HTMLButtonElement>('[data-testid="task-chat-composer-stop"]')?.disabled).toBe(true);
  });
  it("does not offer Stop for settled work even when a callback is available", () => {
    render(<TaskChatThread comments={[]} onAdd={async () => {}} issueStatus="todo" onCancelRun={vi.fn()} />);
    expect(container.querySelector('[data-testid="task-chat-composer-stop"]')).toBeNull();
  });
});