diff --git a/apps/desktop/src/app/contrib/hooks/live-status-reap.test.ts b/apps/desktop/src/app/contrib/hooks/live-status-reap.test.ts
index cca8adf154..74d9b47d18 100644
--- a/apps/desktop/src/app/contrib/hooks/live-status-reap.test.ts
+++ b/apps/desktop/src/app/contrib/hooks/live-status-reap.test.ts
@@ -1,5 +1,6 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 
+import { buildToolView } from '@/components/assistant-ui/tool/fallback-model'
 import { createClientSessionState } from '@/lib/chat-runtime'
 import { $activeSessionId, $selectedStoredSessionId, $unreadFinishedSessionIds } from '@/store/session'
 import {
@@ -111,10 +112,20 @@ describe('rehydrateLiveSessionStatuses — reaping vanished runtimes', () => {
     rehydrateLiveSessionStatuses({ sessions: [] })
 
     const state = $sessionStates.get()['runtime-tools']
+    const part = state.messages[0].parts[0]
 
     expect(state.busy).toBe(false)
     expect(state.awaitingResponse).toBe(false)
-    expect((state.messages[0].parts[0] as { result?: unknown }).result).toBeDefined()
+    expect(part.type).toBe('tool-call')
+
+    if (part.type !== 'tool-call') {
+      throw new Error('Missing tool call')
+    }
+
+    // Reaping ends liveness without inventing evidence of a successful result.
+    expect(part.completedAt).toBeDefined()
+    expect(part.result).toBeUndefined()
+    expect(buildToolView(part, '').status).toBe('warning')
   })
 
   it('clears a session stuck awaiting a response without the busy flag', () => {
diff --git a/apps/desktop/src/components/assistant-ui/thread/changed-files.ts b/apps/desktop/src/components/assistant-ui/thread/changed-files.ts
index 67d23b7f3f..5742fb0c4f 100644
--- a/apps/desktop/src/components/assistant-ui/thread/changed-files.ts
+++ b/apps/desktop/src/components/assistant-ui/thread/changed-files.ts
@@ -9,8 +9,7 @@ import {
   isFileEditTool,
   parseMaybeObject
 } from '@/components/assistant-ui/tool/fallback-model'
-
-import { toolResultRecord, type ToolResultMetadata } from '@/lib/tool-result-metadata'
+import { type ToolResultMetadata, toolResultRecord } from '@/lib/tool-result-metadata'
 
 export interface ChangedFile {
   added: number
diff --git a/apps/desktop/src/lib/chat-messages/competing-contracts.test.ts b/apps/desktop/src/lib/chat-messages/competing-contracts.test.ts
index b5184d3dcf..e7eb7d2c2e 100644
--- a/apps/desktop/src/lib/chat-messages/competing-contracts.test.ts
+++ b/apps/desktop/src/lib/chat-messages/competing-contracts.test.ts
@@ -1,6 +1,7 @@
 import { describe, expect, it } from 'vitest'
-import { upsertToolPart } from '@/lib/chat-messages'
+
 import { summarizeToolRun } from '@/components/assistant-ui/tool/run-summary'
+import { upsertToolPart } from '@/lib/chat-messages'
 
 describe('D1 competing implementation contracts', () => {
   it('retains JSON object text as the canonical received value', () => {
diff --git a/apps/desktop/src/lib/chat-messages/d1-consumers.test.ts b/apps/desktop/src/lib/chat-messages/d1-consumers.test.ts
index c1aa292e11..3135ab534b 100644
--- a/apps/desktop/src/lib/chat-messages/d1-consumers.test.ts
+++ b/apps/desktop/src/lib/chat-messages/d1-consumers.test.ts
@@ -1,9 +1,10 @@
 import { fromThreadMessageLike, getAutoStatus } from '@assistant-ui/core/internal'
 import { describe, expect, it } from 'vitest'
-import { buildToolView } from '@/components/assistant-ui/tool/fallback-model'
+
 import { deriveChangedFiles } from '@/components/assistant-ui/thread/changed-files'
-import { toRuntimeMessage } from '@/lib/chat-runtime'
+import { buildToolView } from '@/components/assistant-ui/tool/fallback-model'
 import { sealOpenToolParts, upsertToolPart } from '@/lib/chat-messages'
+import { toRuntimeMessage } from '@/lib/chat-runtime'
 import { todosFromMessageContent } from '@/lib/todos'
 
 const normalize = (parts: ReturnType<typeof upsertToolPart>) => fromThreadMessageLike(toRuntimeMessage({ id: 'd1', role: 'assistant', parts }), 'd1', getAutoStatus(false, false, false, false, undefined)).content