Preserve run start timestamps when settling terminal status.

cron_runs entered/exited were identical because settleRun rewrote stateEnteredAt and actualAt to the finish instant.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/fire.js

@@ -252,13 +252,14 @@ export function settleRun(state, runId, terminal, now) {
   const status = terminal?.status && !ACTIVE_RUN_STATUSES.has(terminal.status)
     ? terminal.status
     : 'succeeded'
-  const prevStatus = run.status
+  // Keep stateEnteredAt / actualAt from queued→running so cron_runs duration is real.
+  // Only stamp exitedAt (and lastRunAt on the job) at settle time.
   let next = patchRun(state, runId, {
     status,
     summary: terminal?.summary || '',
     error: terminal?.error || null,
-    actualAt: now,
+    actualAt: run.actualAt || now,
-    stateEnteredAt: prevStatus === status ? (run.stateEnteredAt || now) : now,
+    stateEnteredAt: run.stateEnteredAt || run.actualAt || now,
     exitedAt: now,
     sessionId: run.sessionId,
     ...terminal?.outputRef ? { outputRef: terminal.outputRef } : {},
@@ -389,8 +390,8 @@ export function interruptActiveRuns(state, now, reason = 'host_interrupted') {
       status: 'failed',
       error: reason,
       summary: 'Host stopped before this run finished',
-      actualAt: now,
+      actualAt: run.actualAt || now,
-      stateEnteredAt: now,
+      stateEnteredAt: run.stateEnteredAt || run.actualAt || now,
       exitedAt: now,
     })
     const job = getJob(next, run.jobId)

test/monitor.test.js

@@ -15,11 +15,40 @@ import {
   selectJobsByWatch,
 } from '../lib/monitor.js'
 import { createJobRecord, emptyState, listHistoryPage, pruneRuns } from '../lib/store.js'
-import { claimOccurrence, publicJob } from '../lib/fire.js'
+import { claimOccurrence, publicJob, settleRun } from '../lib/fire.js'
 import { createHostService } from '../lib/host.js'
 import { cronToolDefinitions } from '../lib/tools.js'
 
-test('labelsMatch any/all', () => {
+test('settleRun keeps running enter time and stamps exitedAt separately', () => {
+  const now = Date.parse('2026-09-10T07:00:00.000Z')
+  const started = now - 60_000
+  let state = emptyState()
+  const job = createJobRecord({
+    name: 'dur',
+    prompt: 'x',
+    schedule: { kind: 'at', at: new Date(now + 60_000).toISOString(), timezone: 'Asia/Shanghai' },
+  }, state, now)
+  state = { ...state, jobs: [job], runs: [{
+    id: 'r1',
+    jobId: job.id,
+    status: 'running',
+    scheduledAt: started,
+    actualAt: started,
+    stateEnteredAt: started,
+    exitedAt: null,
+    summary: '',
+    error: null,
+    sessionId: 's1',
+  }] }
+  state = settleRun(state, 'r1', { status: 'succeeded', summary: 'ok' }, now)
+  const run = state.runs.find((row) => row.id === 'r1')
+  assert.equal(run.status, 'succeeded')
+  assert.equal(run.stateEnteredAt, started)
+  assert.equal(run.actualAt, started)
+  assert.equal(run.exitedAt, now)
+  assert.ok(run.exitedAt > run.stateEnteredAt)
+})
+
   const job = { role: 'worker', task: 'theory', owner: 'alice' }
   assert.equal(labelsMatch(job, { role: 'worker', task: 'theory' }, 'all'), true)
   assert.equal(labelsMatch(job, { role: 'worker', owner: 'bob' }, 'all'), false)