diff --git a/changelog.d/471-inbox-failed-turns.added.md b/changelog.d/471-inbox-failed-turns.added.md
new file mode 100644
index 00000000..45dedb39
--- /dev/null
+++ b/changelog.d/471-inbox-failed-turns.added.md
@@ -0,0 +1 @@
+The Agent inbox now lists a turn of your own Bot that failed under **Needs you**, with the reason, until the Bot finishes a turn in that chat again, from the same events as the finished/failed notifications; and each inbox card shows a one-line **Latest:** row with what happened last in its chat ([#471](https://github.com/ThinkFlowLab/FlyBot/issues/471)).
diff --git a/core/client.js b/core/client.js
index 5331337e..06dd4ffd 100644
--- a/core/client.js
+++ b/core/client.js
@@ -613,6 +613,8 @@ var ZH = {
   "1 message waits for your approval": "1 条消息等你批准",
   "{count} messages wait for your approval": "{count} 条消息等你批准",
   "Approve it in the chat": "请在对话里批准",
+  "The last turn did not finish": "上一轮没有完成",
+  "Latest: {text}": "最新：{text}",
   "Untitled task": "未命名任务",
   "for {time}": "已 {time}",
   "just started": "刚开始",
@@ -6611,6 +6613,19 @@ var roomName = (roster, id) => roster.roomsById?.[id]?.name;
 var placeOf = (roster, roomId) => roomId && roomName(roster, roomId) ? t("in {name}", { name: roomName(roster, roomId) }) : "";
 var lastWhy = (task) => [...task.actors ?? []].reverse().find((entry) => typeof entry.why === "string" && entry.why !== "")?.why ?? "";
 var chatOfTask = (task) => task.origin?.roomId ?? task.origin?.sessionId ?? task.ownerBotId;
+var placeKey = (botId, roomId) => `${botId}|${roomId ?? ""}`;
+var partOf = (roster, chat) => roster.roomsById?.[chat] || !roster.byId?.[chat] ? chat : currentPart(roster.byId[chat]);
+var runningIn = (work, botId, roomId) => roomId === void 0 ? work.bots?.[botId]?.roomId === void 0 ? work.bots?.[botId] : void 0 : (work.rooms?.[roomId] ?? []).find((entry) => entry.botId === botId) ?? (work.bots?.[botId]?.roomId === roomId ? work.bots[botId] : void 0);
+function latestActivity(card, { roster, work, sessions }) {
+  const options = [];
+  if (card.kind === "task") options.push(lastWhy(card.task));
+  if (card.kind === "run" || card.kind === "task") {
+    const entry = card.executingBot ? runningIn(work, card.executingBot, roster.roomsById?.[card.chat] ? card.chat : void 0) : void 0;
+    if (entry) options.push(`${workPhrase(entry.tool)}…`);
+  }
+  if (sessions?.byId && card.chat) options.push(previewOf(sessions, partOf(roster, card.chat)));
+  return options.find((text) => typeof text === "string" && text !== "" && text !== card.title && text !== card.reason) ?? "";
+}
 function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date.now() }) {
   const needs = [];
   const progress = [];
@@ -6676,6 +6691,29 @@ function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date.now()
   };
   for (const [botId, entry] of Object.entries(work.bots ?? {})) running(botId, entry, entry.roomId);
   for (const [roomId, entries2] of Object.entries(work.rooms ?? {})) for (const entry of entries2) running(entry.botId, entry, roomId);
+  const lastEnded = /* @__PURE__ */ new Map();
+  for (const entry of work.ended ?? []) {
+    const key = placeKey(entry.botId, entry.roomId);
+    if ((entry.at ?? 0) >= (lastEnded.get(key)?.at ?? -Infinity)) lastEnded.set(key, entry);
+  }
+  for (const [key, entry] of lastEnded) {
+    const bot = ownBot(roster, entry.botId);
+    if (bot === void 0 || entry.failed === void 0 || !fresh(entry.at) || seen.has(key) || waitingAt.has(key)) continue;
+    const chat = entry.roomId ?? bot.id;
+    const asked = sessions?.byId ? previewOf(sessions, partOf(roster, chat)) : "";
+    needs.push({
+      id: `turn:${entry.id}`,
+      kind: "turn",
+      status: "failed",
+      bot,
+      at: entry.at,
+      title: asked || t("The last turn did not finish"),
+      reason: entry.failed,
+      place: placeOf(roster, entry.roomId),
+      chat,
+      ...people(roster, bot.id)
+    });
+  }
   for (const task of tasks) {
     const bot = ownBot(roster, task.ownerBotId);
     if (bot === void 0) continue;
@@ -6700,6 +6738,7 @@ function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date.now()
   if (sessions?.byId) {
     for (const bot of roster.bots ?? []) {
       if (ownBot(roster, bot.id) === void 0 || work.bots?.[bot.id] !== void 0 || waitingAt.has(`${bot.id}|`)) continue;
+      if (lastEnded.get(placeKey(bot.id))?.failed !== void 0) continue;
       const part = currentPart(bot);
       const at = sessions.byId[part]?.updatedAt;
       if (!fresh(at)) continue;
@@ -6709,6 +6748,7 @@ function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date.now()
     }
   }
   const newest = (a, b) => (b.at ?? Infinity) - (a.at ?? Infinity);
+  for (const card of [...needs, ...progress, ...done]) card.activity = latestActivity(card, { roster, work, sessions });
   return { needs: needs.sort(newest), progress: progress.sort(newest), done: done.sort(newest).slice(0, DONE_MAX) };
 }
 var needsCount = (roster, work, tasks) => inboxModel({ roster, work, tasks }).needs.length;
@@ -6764,6 +6804,7 @@ function InboxCard({ card, roster, now, busy, error, onAnswer, onOpen }) {
       ),
       (0, import_react11.createElement)("span", { className: "bt-inbox-title", title: card.title }, card.title),
       card.reason ? (0, import_react11.createElement)("span", { className: "bt-inbox-reason", title: card.reason }, card.reason) : null,
+      card.activity ? (0, import_react11.createElement)("span", { className: "bt-inbox-activity", title: card.activity }, t("Latest: {text}", { text: card.activity })) : null,
       card.hint ? (0, import_react11.createElement)("span", { className: "bt-inbox-hint" }, card.hint) : null,
       error ? (0, import_react11.createElement)("span", { className: "bt-inbox-error", role: "alert" }, error) : null
     ),
@@ -6888,7 +6929,8 @@ var INBOX_CSS = `
 .bt-inbox-status[data-tone=muted]{background:var(--bt-hover);color:var(--bt-ink-2)}
 .bt-inbox-meta{min-width:0;font-size:12px;line-height:16px;color:var(--bt-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .bt-inbox-title{font-size:13.5px;line-height:19px;color:var(--bt-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
-.bt-inbox-reason,.bt-inbox-hint{font-size:12px;line-height:16px;color:var(--bt-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bt-inbox-reason,.bt-inbox-hint,.bt-inbox-activity{font-size:12px;line-height:16px;color:var(--bt-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bt-inbox-activity{color:var(--bt-ink-3)}
 .bt-inbox-error{font-size:12px;line-height:16px;color:#c21d2e;overflow-wrap:anywhere}
 .bt-inbox-actions{flex:none;display:flex;align-items:center;gap:6px;align-self:center}
 .bt-inbox-actions .bt-send{height:28px;font-size:12px}
diff --git a/core/src/client/i18n.js b/core/src/client/i18n.js
index 7832798d..2f349e39 100644
--- a/core/src/client/i18n.js
+++ b/core/src/client/i18n.js
@@ -554,6 +554,8 @@ const ZH = {
   '1 message waits for your approval': '1 条消息等你批准',
   '{count} messages wait for your approval': '{count} 条消息等你批准',
   'Approve it in the chat': '请在对话里批准',
+  'The last turn did not finish': '上一轮没有完成',
+  'Latest: {text}': '最新：{text}',
   'Untitled task': '未命名任务',
   'for {time}': '已 {time}',
   'just started': '刚开始',
diff --git a/core/src/client/inbox.js b/core/src/client/inbox.js
index 02d58a78..832d6162 100644
--- a/core/src/client/inbox.js
+++ b/core/src/client/inbox.js
@@ -2,7 +2,8 @@
 // done across my own Bots, opened from the Inbox row at the top of the sidebar. Built
 // only from data the client already has: the work snapshot's approvals and running
 // turns, the held-message counts on chats, the Bot chats' last activity and the task
-// records (src/host/tasks.js). No new host state. A tool approval is answered with the
+// records (src/host/tasks.js), and the ended turns the finish/fail notifications use
+// (work.ended, #353) for failed turns (#471). A tool approval is answered with the
 // same answer the group chat's card gives (actions.answerApproval); everything else,
 // and every Bot-sent message, is approved in its chat, so its card only has Open.
 import { createElement as h, useCallback, useEffect, useState } from 'react'
@@ -94,6 +95,27 @@ const roomName = (roster, id) => roster.roomsById?.[id]?.name
 const placeOf = (roster, roomId) => (roomId && roomName(roster, roomId) ? t('in {name}', { name: roomName(roster, roomId) }) : '')
 const lastWhy = task => [...(task.actors ?? [])].reverse().find(entry => typeof entry.why === 'string' && entry.why !== '')?.why ?? ''
 const chatOfTask = task => task.origin?.roomId ?? task.origin?.sessionId ?? task.ownerBotId
+const placeKey = (botId, roomId) => `${botId}|${roomId ?? ''}`
+// The Session a card's chat reads from: a group's own, a Bot's current part, else the id itself.
+const partOf = (roster, chat) => (roster.roomsById?.[chat] || !roster.byId?.[chat] ? chat : currentPart(roster.byId[chat]))
+// What a Bot runs in a place right now: its own chat's turn or its turn in that group.
+const runningIn = (work, botId, roomId) => (roomId === undefined
+  ? (work.bots?.[botId]?.roomId === undefined ? work.bots?.[botId] : undefined)
+  : (work.rooms?.[roomId] ?? []).find(entry => entry.botId === botId) ?? (work.bots?.[botId]?.roomId === roomId ? work.bots[botId] : undefined))
+
+// The card's one-line latest activity (#471): a task's newest note, else what its Bot runs
+// there now (not for a card that waits for me), else that chat's last line. Left out when it
+// only repeats the title or the reason.
+function latestActivity(card, { roster, work, sessions }) {
+  const options = []
+  if (card.kind === 'task') options.push(lastWhy(card.task))
+  if (card.kind === 'run' || card.kind === 'task') {
+    const entry = card.executingBot ? runningIn(work, card.executingBot, roster.roomsById?.[card.chat] ? card.chat : undefined) : undefined
+    if (entry) options.push(`${workPhrase(entry.tool)}…`)
+  }
+  if (sessions?.byId && card.chat) options.push(previewOf(sessions, partOf(roster, card.chat)))
+  return options.find(text => typeof text === 'string' && text !== '' && text !== card.title && text !== card.reason) ?? ''
+}
 
 /**
  * The three groups of cards, newest first in each.
@@ -146,6 +168,25 @@ export function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date
   }
   for (const [botId, entry] of Object.entries(work.bots ?? {})) running(botId, entry, entry.roomId)
   for (const [roomId, entries] of Object.entries(work.rooms ?? {})) for (const entry of entries) running(entry.botId, entry, roomId)
+  // Failed turns (#471), from the ended turns the finish/fail notifications read (#353): a
+  // failure needs me while it is the latest ended turn in its place (a Bot's own chat or one
+  // group) and the Bot is not working or waiting there again. A later finished turn clears it.
+  const lastEnded = new Map()
+  for (const entry of work.ended ?? []) {
+    const key = placeKey(entry.botId, entry.roomId)
+    if ((entry.at ?? 0) >= (lastEnded.get(key)?.at ?? -Infinity)) lastEnded.set(key, entry)
+  }
+  for (const [key, entry] of lastEnded) {
+    const bot = ownBot(roster, entry.botId)
+    if (bot === undefined || entry.failed === undefined || !fresh(entry.at) || seen.has(key) || waitingAt.has(key)) continue
+    const chat = entry.roomId ?? bot.id
+    const asked = sessions?.byId ? previewOf(sessions, partOf(roster, chat)) : ''
+    needs.push({
+      id: `turn:${entry.id}`, kind: 'turn', status: 'failed', bot, at: entry.at,
+      title: asked || t('The last turn did not finish'), reason: entry.failed,
+      place: placeOf(roster, entry.roomId), chat, ...people(roster, bot.id),
+    })
+  }
   // Task records (#54).
   for (const task of tasks) {
     const bot = ownBot(roster, task.ownerBotId)
@@ -164,6 +205,8 @@ export function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date
   if (sessions?.byId) {
     for (const bot of roster.bots ?? []) {
       if (ownBot(roster, bot.id) === undefined || work.bots?.[bot.id] !== undefined || waitingAt.has(`${bot.id}|`)) continue
+      // Its last turn failed: that card is in Needs you.
+      if (lastEnded.get(placeKey(bot.id))?.failed !== undefined) continue
       const part = currentPart(bot)
       const at = sessions.byId[part]?.updatedAt
       if (!fresh(at)) continue
@@ -173,6 +216,7 @@ export function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date
     }
   }
   const newest = (a, b) => (b.at ?? Infinity) - (a.at ?? Infinity)
+  for (const card of [...needs, ...progress, ...done]) card.activity = latestActivity(card, { roster, work, sessions })
   return { needs: needs.sort(newest), progress: progress.sort(newest), done: done.sort(newest).slice(0, DONE_MAX) }
 }
 
@@ -220,6 +264,7 @@ export function InboxCard({ card, roster, now, busy, error, onAnswer, onOpen })
         h('span', { className: 'bt-inbox-meta', title: meta }, meta)),
       h('span', { className: 'bt-inbox-title', title: card.title }, card.title),
       card.reason ? h('span', { className: 'bt-inbox-reason', title: card.reason }, card.reason) : null,
+      card.activity ? h('span', { className: 'bt-inbox-activity', title: card.activity }, t('Latest: {text}', { text: card.activity })) : null,
       card.hint ? h('span', { className: 'bt-inbox-hint' }, card.hint) : null,
       error ? h('span', { className: 'bt-inbox-error', role: 'alert' }, error) : null),
     h('span', { className: 'bt-inbox-actions' },
@@ -322,7 +367,8 @@ export const INBOX_CSS = `
 .bt-inbox-status[data-tone=muted]{background:var(--bt-hover);color:var(--bt-ink-2)}
 .bt-inbox-meta{min-width:0;font-size:12px;line-height:16px;color:var(--bt-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .bt-inbox-title{font-size:13.5px;line-height:19px;color:var(--bt-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
-.bt-inbox-reason,.bt-inbox-hint{font-size:12px;line-height:16px;color:var(--bt-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bt-inbox-reason,.bt-inbox-hint,.bt-inbox-activity{font-size:12px;line-height:16px;color:var(--bt-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bt-inbox-activity{color:var(--bt-ink-3)}
 .bt-inbox-error{font-size:12px;line-height:16px;color:#c21d2e;overflow-wrap:anywhere}
 .bt-inbox-actions{flex:none;display:flex;align-items:center;gap:6px;align-self:center}
 .bt-inbox-actions .bt-send{height:28px;font-size:12px}
diff --git a/core/src/host/turns.js b/core/src/host/turns.js
index 6f031bcd..f653c417 100644
--- a/core/src/host/turns.js
+++ b/core/src/host/turns.js
@@ -254,11 +254,22 @@ export function install(rt) {
   }
 
   // The latest turns of the user's own Bots that finished or failed, for a system notification
-  // (#353). Process-local and bounded; a window skips the ones from before it opened. Left out:
-  // a friend's Bots, turns a friend started, turns another Bot asked for (hidden in the chat),
-  // rooms shared with other people, and turns the user stopped.
+  // (#353) and the Agent inbox's failed turns (#471). Process-local and bounded; a window skips
+  // the ones from before it opened. Left out: a friend's Bots, turns a friend started, turns
+  // another Bot asked for (hidden in the chat), rooms shared with other people, and turns the
+  // user stopped. Past the last 20, a place's (Bot + group) latest turn is kept while it is a
+  // failure younger than 7 days, so busy Bots elsewhere do not push it out of the inbox.
   const ENDED_KEPT = 20
+  const FAILED_KEPT = 50
+  const FAILED_MS = 7 * 86_400_000
   let ended = []
+  const placeOfEnded = entry => `${entry.botId}|${entry.roomId ?? ''}`
+  const trimEnded = (list, now) => {
+    const latest = new Map(list.map(entry => [placeOfEnded(entry), entry]))
+    const older = list.slice(0, -ENDED_KEPT)
+      .filter(entry => entry.failed !== undefined && latest.get(placeOfEnded(entry)) === entry && now - entry.at <= FAILED_MS)
+    return [...older.slice(-FAILED_KEPT), ...list.slice(-ENDED_KEPT)]
+  }
   const noteEnded = (id, turn, info, reason, failure) => {
     if (failure === undefined && reason?.kind !== 'completed') return
     const owner = rt.groupOwners.get(id)
@@ -268,13 +279,13 @@ export function install(rt) {
     if (owner === undefined && state.exchangeTurns?.[id]?.includes(turn)) return
     if (owner !== undefined && rt.roomOf(owner.roomId)?.origin !== undefined) return
     const at = Date.now()
-    ended = [...ended, {
+    ended = trimEnded([...ended, {
       id: `${id}:${turn}:${at}`,
       botId: bot.id,
       ...(owner ? { roomId: owner.roomId } : { sessionId: id }),
       at,
       ...(failure ? { failed: (failure.message || failure.code).slice(0, 160) } : {}),
-    }].slice(-ENDED_KEPT)
+    }], at)
   }
   const endedView = () => ended
 
diff --git a/core/test/approval-notices.test.js b/core/test/approval-notices.test.js
index 99e281e4..a05c7d60 100644
--- a/core/test/approval-notices.test.js
+++ b/core/test/approval-notices.test.js
@@ -168,5 +168,10 @@ test('the host lists finished and failed turns of my own Bots, not stopped, aske
     ['g1:1', { botId: 'b', roomId: 'r1', failed: 'upstream busy' }],
   ])
   for (let n = 10; n < 40; n++) turn('b', n, completed)
+  // Past the last 20, the failure in r1 stays: it is still the latest turn there (#471).
+  assert.deepEqual(rt.endedView().map(entry => entry.id.split(':').slice(0, 2).join(':')), ['g1:1', ...Array.from({ length: 20 }, (_, i) => `b:${20 + i}`)])
+  turn('g1', 2, completed, { kind: SOURCE_KIND, role: 'room', exchangeId: 'r1y' })
+  for (let n = 40; n < 60; n++) turn('b', n, completed)
   assert.equal(rt.endedView().length, 20)
+  assert.ok(rt.endedView().every(entry => entry.failed === undefined))
 })
diff --git a/core/test/inbox.test.js b/core/test/inbox.test.js
index fee31567..86d96293 100644
--- a/core/test/inbox.test.js
+++ b/core/test/inbox.test.js
@@ -256,3 +256,81 @@ test('the sidebar has one Inbox row at its top, and the dialog is an overlay', (
   assert.ok(sidebar.indexOf('h(InboxRow,') < sidebar.indexOf("className: 'bt-list'"))
   assert.match(readFileSync(new URL('../src/client/overlays.js', import.meta.url), 'utf8'), /h\(InboxDialog,/)
 })
+
+// #471: failed turns from the ended turns the finish/fail notifications use (#353), and a
+// one-line latest activity on each card.
+const endedWork = {
+  ...work,
+  ended: [
+    { id: 'e1', botId: 'b2', sessionId: 's2', at: NOW - 10 * 60_000 },
+    { id: 'e2', botId: 'b2', sessionId: 's2', at: NOW - 5 * 60_000, failed: 'upstream busy' },
+    { id: 'e3', botId: 'b3', roomId: 'r1', at: NOW - 3 * 60_000, failed: 'quota' },
+    { id: 'e4', botId: 'b1', sessionId: 's1', at: NOW - 4 * 60_000, failed: 'timeout' },
+    { id: 'e5', botId: 'f1', sessionId: 'f1', at: NOW - 60_000, failed: 'friend side' },
+    { id: 'e6', botId: 'b3', sessionId: 's3', at: NOW - 8 * DAY, failed: 'too old' },
+    { id: 'e7', botId: 'b1', roomId: 'r2', at: NOW - 9 * 60_000, failed: 'gone' },
+    { id: 'e8', botId: 'b1', roomId: 'r2', at: NOW - 2 * 60_000 },
+  ],
+}
+const endedSessions = {
+  byId: {
+    ...sessions.byId,
+    r1: { updatedAt: NOW - 60_000, projectionValues: { turnOutline: [{ turn: 4, prompt: 'Ship the release notes', response: '' }] } },
+  },
+}
+const endedModel = inboxModel({ roster, work: endedWork, tasks, sessions: endedSessions, now: NOW })
+
+test('a failed turn of my own Bot needs me while it is the latest turn in its chat and the Bot is not back at work there', () => {
+  const turns = endedModel.needs.filter(card => card.kind === 'turn')
+  // b3 in Ops waits for approval a1 and b1 runs again in its own chat; r2's failure was
+  // followed by a finished turn; f1 is a friend's Bot; e6 is older than 7 days.
+  assert.deepEqual(plain(ids(turns)), ['turn:e2'])
+  const [card] = turns
+  assert.equal(card.status, 'failed')
+  assert.equal(card.reason, 'upstream busy')
+  assert.equal(card.chat, 'b2')
+  assert.equal(card.title, 'Here is the weekly summary of everything that changed')
+  assert.equal(card.executingBot, 'b2')
+  // The chat whose last turn failed is not also Done.
+  assert.ok(!ids(endedModel.done).includes('chat:b2'))
+  assert.equal(needsCount(roster, endedWork, tasks), model.needs.length + 1)
+  // Without the Session list (the row's badge), the title says what happened.
+  assert.equal(inboxModel({ roster, work: endedWork, tasks, now: NOW }).needs.find(entry => entry.id === 'turn:e2').title, 'The last turn did not finish')
+  assert.deepEqual(plain(buttons(draw(card)).map(textOf)), ['Open'])
+})
+
+test('a failure no longer needs me once the Bot works or waits there again', () => {
+  const again = inboxModel({ roster, work: { ...endedWork, bots: { ...endedWork.bots, b2: { since: NOW - 1000 } } }, tasks, sessions: endedSessions, now: NOW })
+  assert.ok(!ids(again.needs).includes('turn:e2'))
+  const freed = inboxModel({ roster, work: { ...endedWork, approvals: [], rooms: {} }, tasks, sessions: endedSessions, now: NOW })
+  assert.ok(ids(freed.needs).includes('turn:e3'))
+  assert.equal(freed.needs.find(card => card.id === 'turn:e3').place, 'in Ops')
+})
+
+test('each card has a one-line latest activity that never repeats its title or reason', () => {
+  const byId = Object.fromEntries([...endedModel.needs, ...endedModel.progress, ...endedModel.done].map(card => [card.id, card]))
+  // An approval and a running turn in Ops show that chat's last line.
+  assert.equal(byId['approval:a1'].activity, 'Ship the release notes')
+  assert.equal(byId['run:b1|r1'].activity, 'Ship the release notes')
+  // A held message in b2's chat shows its last line; a task its newest note.
+  assert.equal(byId['held:b2'].activity, 'Here is the weekly summary of everything that changed')
+  const noted = inboxModel({ roster, work, tasks: [task('t10', 'working', { actors: [{ status: 'claimed', why: 'Reading the spec' }] })], now: NOW })
+  assert.equal(noted.progress.find(card => card.id === 'task:t10').activity, 'Reading the spec')
+  // A running task's Bot shows the tool it runs when there is no note.
+  const busy = inboxModel({ roster, work: { bots: { b2: { since: NOW - 1000, tool: 'pwsh' } } }, tasks: [task('t11', 'working')], now: NOW })
+  assert.match(busy.progress.find(card => card.id === 'task:t11').activity, /…$/)
+  // Repeats are left out: the failed turn's title is its chat's last line, the failed task's
+  // reason its newest note (so its chat's last line shows instead).
+  assert.equal(byId['turn:e2'].activity, '')
+  assert.equal(byId['task:t2'].activity, 'Here is the weekly summary of everything that changed')
+  assert.equal(inboxModel({ roster, work: {}, tasks, sessions, now: NOW }).done.find(card => card.id === 'chat:b2').activity, '')
+  for (const card of Object.values(byId)) {
+    assert.ok(card.activity !== card.title || card.activity === '', card.id)
+    const rows = byClass(draw(card), 'bt-inbox-activity')
+    assert.equal(rows.length, card.activity ? 1 : 0, card.id)
+    if (card.activity) {
+      assert.equal(rows[0].props.title, card.activity)
+      assert.equal(textOf(rows[0]), `Latest: ${card.activity}`)
+    }
+  }
+})
diff --git a/docs/subsystems/core-client.md b/docs/subsystems/core-client.md
index 93b65abd..0172ce57 100644
--- a/docs/subsystems/core-client.md
+++ b/docs/subsystems/core-client.md
@@ -30,7 +30,7 @@ The browser side of the patched `ds-bot` core (`core/`): sources in `core/src/cl
 | `core/test/new-chat-menu.test.js` | **+** menu rows (#283): an action row's description is its own line under the title, an inline Bot hint is capped, so hovering never hides a title. |
 | `core/test/new-chat.test.js` | Picker filters and the **+** short action menu (`data-menu`; New chat, New Bot, New group chat, plugin actions, then Add coding agent; #385 marks, verbs and hints). `ungrantedLocalFix`, `copiedToClipboard` (no clipboard or a refused write is a failure) and the refusal card (invite and leave-out actions, the copy-by-hand link field, no grant written by the client). |
 | `core/src/client/schedules.js` | Settings → Scheduled tasks, a Bot's card and the details line. Each row has **Edit** (pencil; the row turns into the same form that creates a task, filled in, with **Save changes**; an edited task keeps its time zone, a cron rule it cannot show is kept) and **Pause** / **Resume**; a paused row reads **Paused** (#354). With Automation tasks off, the hint reads "Switch on Automation tasks on the Plugins page." and the button **Open Plugins** closes the Settings dialog and opens DSH's Plugins panel (`actions.selectPanel('plugins')`); the Harness settings dialog has no such switch (#378). Tests: `core/test/schedules-client.test.js`. |
-| `core/src/client/inbox.js` | Agent inbox, step 1 (#349): the **Inbox** row at the top of the sidebar (`InboxRow`, count badge = cards in *Needs you*) and the inbox dialog (`InboxDialog`, `ui.inbox`, `actions.openInbox` / `closeInbox`) with the groups **Needs you**, **In progress** and **Done** (`inboxModel`). Tests: `core/test/inbox.test.js`. |
+| `core/src/client/inbox.js` | Agent inbox, step 1 (#349): the **Inbox** row at the top of the sidebar (`InboxRow`, count badge = cards in *Needs you*) and the inbox dialog (`InboxDialog`, `ui.inbox`, `actions.openInbox` / `closeInbox`) with the groups **Needs you**, **In progress** and **Done** (`inboxModel`); failed turns and a *Latest* line per card (#471). Tests: `core/test/inbox.test.js`. |
 | `core/src/client/mobile.js` | Phone-width layout, step 1 (#362): `MOBILE_CSS` under `@media (max-width:640px)` for held-reply and floating approval buttons, the chat pointers and Agent inbox cards. Tests: `core/test/mobile-layout.test.js`. |
 
 ## Invariants
@@ -105,9 +105,10 @@ The overlay (`flybot-slots.js` `FlyBotApprovals`) is the fallback, not a second
 - One **Inbox** row sits at the top of the sidebar, above the Bot list (wide and rail), with a count badge of the *Needs you* cards; it opens the inbox dialog over the conversation (owner decision 2026-10-20, option a). No new + menu entry, no new sidebar section.
 - Groups, in this order and with these words (the decision's "Need you" is written **Needs you**, as in the triage): **Needs you**, **In progress**, **Done**; each has a one-line empty message. Only data the client already has, no new host state: `work.approvals` (tool approvals), `pendingCount` on chats (held Bot messages), `work.bots` / `work.rooms` (running turns), the task records of `src/host/tasks.js` (`actions.tasks` → the existing `tasks` endpoint, polled every 30 s) and the Session list's `updatedAt` and last line for finished Bot chats.
 - Only my own Bots (not a friend's Bot, not another member's): a friend's chat appears only as a held message of mine waiting in it. Every card carries `assigner`, `owner` and `executingBot` (the first two are me in step 1) so team views can filter later.
-- *Needs you*: tool approvals, held messages, tasks that are blocked, have a result ready or failed (with the reason). *In progress*: running turns (with elapsed time; a turn waiting for an approval shows only in *Needs you*) and open/claimed/working tasks. *Done*: accepted or cancelled tasks and Bot chats whose last turn finished. Done and failed tasks age out after 7 days; Done shows the newest 20.
+- *Needs you*: tool approvals, held messages, tasks that are blocked, have a result ready or failed (with the reason), and failed turns (#471, `kind: 'turn'`): from `work.ended`, the same ended-turn entries the system notifications read (#353), a place's (a Bot's own chat or one group) latest ended turn when it failed, in the last 7 days, while that Bot is not running or waiting for an approval there; its title is the chat's last line (*The last turn did not finish* without the Session list), its reason the failure. A later finished turn there clears it, and that Bot chat is then not also in *Done*. **Open** only. *In progress*: running turns (with elapsed time; a turn waiting for an approval shows only in *Needs you*) and open/claimed/working tasks. *Done*: accepted or cancelled tasks and Bot chats whose last turn finished. Done and failed tasks age out after 7 days; Done shows the newest 20.
 - Each card has exactly one status, as a colored pill with an icon and a word (never color alone), the Bot, where and when, the title on one line with the full text on hover, and **Open** (closes the inbox, opens the chat). An approval the group chat's card can answer (`answerable`) also has **Reject** / **Allow once**, which call `actions.answerApproval`, the same answer as that card (no second approval path); the card leaves and a status line says what was done; an error stays on the card. No native confirm dialog. A held Bot message, an approval DSH's card answers in the Bot's own chat, and every task have **Open** only: Bot-sent messages are approved in their chat. Every action is a button, so the dialog is keyboard reachable; the close button takes focus and Escape closes.
-- Out of step 1: the three-column board, tool-call counts, failed turns without a task record (they need an event source, #353), team views (#51/#149).
+- **Latest activity (#471):** every card may have one more line, *Latest: …* (`card.activity`, `bt-inbox-activity`, full text on hover): a task's newest note, else what its Bot runs there now (only for running turns and tasks), else the chat's last line (`previewOf`); left out when it only repeats the title or the reason.
+- Out of scope so far (#471): the three-column board, tool-call counts, a first-run guide, team views (#51/#149/#55/#57).
 
 ### Phone-width layout (#362, step 1)
 
diff --git a/docs/subsystems/core-host.md b/docs/subsystems/core-host.md
index 2f29e0ba..950795d0 100644
--- a/docs/subsystems/core-host.md
+++ b/docs/subsystems/core-host.md
@@ -143,7 +143,7 @@ credentials and team mode remain separate work under #55/#198.
 
 ### Ended turns for notifications (#353)
 
-- `turns.js` keeps `endedView()`: the last 20 turns of the user's own Bots that finished (`reason.kind === 'completed'`) or failed (`failed`: the failure's message, else its code, at most 160 characters; an AUTH message stays out as in `turnFailure`), as `{ id: '<session>:<turn>:<at>', botId, sessionId | roomId, at }`. Process-local, never saved. Not listed: a turn stopped, switched to a new part or retried for a tool call written as text; a friend's Bot (`bot.remote`); a turn a friend started (`fromRemote`, a remote-chat line); a hidden turn another Bot asked for (`exchangeTurns`); a group turn in a room with an `origin` (face-to-face, inbound-share). It rides `live().work.ended`; `rt.ownedLive` keeps the actor's own Bots' entries. `set-prefs` takes `notifications: false` (kept) or `true` / `null` (cleared: on by default). The client's use is in [core-client](core-client.md#system-notifications-353).
+- `turns.js` keeps `endedView()` (`trimEnded`): the last 20 turns, plus, past those, each place's (Bot + group) latest turn while it is a failure younger than 7 days (at most 50, for the Agent inbox's failed turns, #471), of the user's own Bots that finished (`reason.kind === 'completed'`) or failed (`failed`: the failure's message, else its code, at most 160 characters; an AUTH message stays out as in `turnFailure`), as `{ id: '<session>:<turn>:<at>', botId, sessionId | roomId, at }`. Process-local, never saved. Not listed: a turn stopped, switched to a new part or retried for a tool call written as text; a friend's Bot (`bot.remote`); a turn a friend started (`fromRemote`, a remote-chat line); a hidden turn another Bot asked for (`exchangeTurns`); a group turn in a room with an `origin` (face-to-face, inbound-share). It rides `live().work.ended`; `rt.ownedLive` keeps the actor's own Bots' entries. `set-prefs` takes `notifications: false` (kept) or `true` / `null` (cleared: on by default). The client's use is in [core-client](core-client.md#system-notifications-353).
 
 ### Diagnostics
 
diff --git a/patches/ds-bot/0001-core-fixes.patch b/patches/ds-bot/0001-core-fixes.patch
index ad614280..b9b5656b 100644
--- a/patches/ds-bot/0001-core-fixes.patch
+++ b/patches/ds-bot/0001-core-fixes.patch
@@ -692,7 +692,7 @@ diff --git a/src/client/i18n.js b/src/client/i18n.js
    'You have {version}.': '当前版本 {version}。',
    'The update did not finish: {reason}': '更新没有完成：{reason}',
    "What's new": '更新说明',
-@@ -360,9 +360,34 @@ const ZH = {
+@@ -360,9 +360,36 @@ const ZH = {
    'DSH update': 'DSH 更新',
    'DSH {version}': 'DSH {version}',
    'Restart DSH to start using DSH {version}.': '重启 DSH 后开始使用 DSH {version}。',
@@ -719,6 +719,8 @@ diff --git a/src/client/i18n.js b/src/client/i18n.js
 +  '1 message waits for your approval': '1 条消息等你批准',
 +  '{count} messages wait for your approval': '{count} 条消息等你批准',
 +  'Approve it in the chat': '请在对话里批准',
++  'The last turn did not finish': '上一轮没有完成',
++  'Latest: {text}': '最新：{text}',
 +  'Untitled task': '未命名任务',
 +  'for {time}': '已 {time}',
 +  'just started': '刚开始',
@@ -2919,16 +2921,27 @@ diff --git a/src/host/turns.js b/src/host/turns.js
        markExchangeTurn(sessionId, entry.turn)
      }
    }
-@@ -238,6 +238,31 @@ export function install(rt) {
+@@ -238,6 +238,42 @@ export function install(rt) {
      return { ...(text ? { text: text.trim().slice(0, 300) } : {}), ...(code ? { code: code.trim().slice(0, 400) } : {}) }
    }
  
 +  // The latest turns of the user's own Bots that finished or failed, for a system notification
-+  // (#353). Process-local and bounded; a window skips the ones from before it opened. Left out:
-+  // a friend's Bots, turns a friend started, turns another Bot asked for (hidden in the chat),
-+  // rooms shared with other people, and turns the user stopped.
++  // (#353) and the Agent inbox's failed turns (#471). Process-local and bounded; a window skips
++  // the ones from before it opened. Left out: a friend's Bots, turns a friend started, turns
++  // another Bot asked for (hidden in the chat), rooms shared with other people, and turns the
++  // user stopped. Past the last 20, a place's (Bot + group) latest turn is kept while it is a
++  // failure younger than 7 days, so busy Bots elsewhere do not push it out of the inbox.
 +  const ENDED_KEPT = 20
++  const FAILED_KEPT = 50
++  const FAILED_MS = 7 * 86_400_000
 +  let ended = []
++  const placeOfEnded = entry => `${entry.botId}|${entry.roomId ?? ''}`
++  const trimEnded = (list, now) => {
++    const latest = new Map(list.map(entry => [placeOfEnded(entry), entry]))
++    const older = list.slice(0, -ENDED_KEPT)
++      .filter(entry => entry.failed !== undefined && latest.get(placeOfEnded(entry)) === entry && now - entry.at <= FAILED_MS)
++    return [...older.slice(-FAILED_KEPT), ...list.slice(-ENDED_KEPT)]
++  }
 +  const noteEnded = (id, turn, info, reason, failure) => {
 +    if (failure === undefined && reason?.kind !== 'completed') return
 +    const owner = rt.groupOwners.get(id)
@@ -2938,13 +2951,13 @@ diff --git a/src/host/turns.js b/src/host/turns.js
 +    if (owner === undefined && state.exchangeTurns?.[id]?.includes(turn)) return
 +    if (owner !== undefined && rt.roomOf(owner.roomId)?.origin !== undefined) return
 +    const at = Date.now()
-+    ended = [...ended, {
++    ended = trimEnded([...ended, {
 +      id: `${id}:${turn}:${at}`,
 +      botId: bot.id,
 +      ...(owner ? { roomId: owner.roomId } : { sessionId: id }),
 +      at,
 +      ...(failure ? { failed: (failure.message || failure.code).slice(0, 160) } : {}),
-+    }].slice(-ENDED_KEPT)
++    }], at)
 +  }
 +  const endedView = () => ended
 +
@@ -3192,7 +3205,7 @@ diff --git a/test/approval-notices.test.js b/test/approval-notices.test.js
    const module = { exports: {} }
    runInNewContext(bundle.outputFiles[0].text, {
      module, exports: module.exports, Notification,
-@@ -62,3 +62,109 @@ test('no notification for the conversation on screen, for approvals older than t
+@@ -62,3 +62,114 @@ test('no notification for the conversation on screen, for approvals older than t
    denied.work.set({ bots: {}, approvals: [{ id: 'x1', botId: 'b', roomId: 'r1', tool: 'pwsh', at: 200 }] })
    assert.equal(denied.shown.length, 0)
  })
@@ -3300,7 +3313,12 @@ diff --git a/test/approval-notices.test.js b/test/approval-notices.test.js
 +    ['g1:1', { botId: 'b', roomId: 'r1', failed: 'upstream busy' }],
 +  ])
 +  for (let n = 10; n < 40; n++) turn('b', n, completed)
++  // Past the last 20, the failure in r1 stays: it is still the latest turn there (#471).
++  assert.deepEqual(rt.endedView().map(entry => entry.id.split(':').slice(0, 2).join(':')), ['g1:1', ...Array.from({ length: 20 }, (_, i) => `b:${20 + i}`)])
++  turn('g1', 2, completed, { kind: SOURCE_KIND, role: 'room', exchangeId: 'r1y' })
++  for (let n = 40; n < 60; n++) turn('b', n, completed)
 +  assert.equal(rt.endedView().length, 20)
++  assert.ok(rt.endedView().every(entry => entry.failed === undefined))
 +})
 diff --git a/test/client-bundle.test.js b/test/client-bundle.test.js
 --- a/test/client-bundle.test.js
diff --git a/patches/ds-bot/0008-client-bundle.patch b/patches/ds-bot/0008-client-bundle.patch
index 714fc64b..6e9fadc2 100644
--- a/patches/ds-bot/0008-client-bundle.patch
+++ b/patches/ds-bot/0008-client-bundle.patch
@@ -333,7 +333,7 @@ diff --git a/client.js b/client.js
    "You have {version}.": "当前版本 {version}。",
    "The update did not finish: {reason}": "更新没有完成：{reason}",
    "What's new": "更新说明",
-@@ -420,8 +420,33 @@ var ZH = {
+@@ -420,8 +420,35 @@ var ZH = {
    "DSH update": "DSH 更新",
    "DSH {version}": "DSH {version}",
    "Restart DSH to start using DSH {version}.": "重启 DSH 后开始使用 DSH {version}。",
@@ -359,6 +359,8 @@ diff --git a/client.js b/client.js
 +  "1 message waits for your approval": "1 条消息等你批准",
 +  "{count} messages wait for your approval": "{count} 条消息等你批准",
 +  "Approve it in the chat": "请在对话里批准",
++  "The last turn did not finish": "上一轮没有完成",
++  "Latest: {text}": "最新：{text}",
 +  "Untitled task": "未命名任务",
 +  "for {time}": "已 {time}",
 +  "just started": "刚开始",
@@ -1787,21 +1789,21 @@ diff --git a/client.js b/client.js
  var historyLoading = (snapshot) => snapshot?.openState === "cold" || snapshot?.openState === "loading";
  function toolArgs(root) {
    if (typeof root.args?.text === "function") {
-@@ -1583,50 +1583,236 @@ function commRunOf(order, peers, turn, hiddenTurns = []) {
-     if (hidden && peer === void 0) continue;
-     turns.push({ turn: entry, peer, hidden });
+@@ -1573,60 +1573,246 @@ function relaysBefore(contexts, steps, step) {
+       break;
+     }
    }
--  const at = turns.findIndex((entry) => entry.turn === turn);
--  if (at === -1 || turns[at].peer === void 0) return null;
--  const previous = turns[at - 1];
--  if (previous?.peer !== void 0 && previous.hidden) return "folded";
--  let count = 0;
--  const peerIds = [];
--  for (let index = at; index < turns.length; index += 1) {
--    const entry = turns[index];
--    if (entry.peer === void 0 || index > at && !turns[index - 1].hidden) break;
--    count += entry.hidden ? 2 : 1;
--    if (!peerIds.includes(entry.peer)) peerIds.push(entry.peer);
+-  return (contexts ?? []).filter((data) => isRelayContext(data) && typeof data.time === "number" && data.time >= prev && data.time < step.time);
++  return (contexts ?? []).filter((data) => isRelayContext(data) && typeof data.time === "number" && data.time >= prev && data.time < step.time);
++}
++function commRunOf(order, peers, turn, hiddenTurns = []) {
++  const turns = [];
++  for (const entry of order) {
++    const peer = peers[entry];
++    const hidden = hiddenTurns.includes(entry);
++    if (hidden && peer === void 0) continue;
++    turns.push({ turn: entry, peer, hidden });
++  }
 +  const at = turns.findIndex((entry) => entry.turn === turn);
 +  if (at === -1 || turns[at].peer === void 0) return null;
 +  const previous = turns[at - 1];
@@ -1909,7 +1911,26 @@ diff --git a/client.js b/client.js
 +    for (const sessionId of agent.sessions ?? []) agentOf[sessionId] = agent.id;
 +  }
 +  return { ...value, agents: value.agents ?? [], byId, roomsById, agentsById, agentOf, ready: true };
-+}
+ }
+-function commRunOf(order, peers, turn, hiddenTurns = []) {
+-  const turns = [];
+-  for (const entry of order) {
+-    const peer = peers[entry];
+-    const hidden = hiddenTurns.includes(entry);
+-    if (hidden && peer === void 0) continue;
+-    turns.push({ turn: entry, peer, hidden });
+-  }
+-  const at = turns.findIndex((entry) => entry.turn === turn);
+-  if (at === -1 || turns[at].peer === void 0) return null;
+-  const previous = turns[at - 1];
+-  if (previous?.peer !== void 0 && previous.hidden) return "folded";
+-  let count = 0;
+-  const peerIds = [];
+-  for (let index = at; index < turns.length; index += 1) {
+-    const entry = turns[index];
+-    if (entry.peer === void 0 || index > at && !turns[index - 1].hidden) break;
+-    count += entry.hidden ? 2 : 1;
+-    if (!peerIds.includes(entry.peer)) peerIds.push(entry.peer);
 +function isAgentSession(roster, cache, sessionId) {
 +  if (sessionId === void 0 || sessionId === null || sessionId === "") return false;
 +  if (roster.ready) return roster.agentOf[sessionId] !== void 0;
@@ -2388,16 +2409,10 @@ diff --git a/client.js b/client.js
  .bt-ububble{max-width:min(560px,78%);background:var(--bt-user);color:var(--bt-user-ink);border-radius:18px;padding:7px 12px;font-size:14px;line-height:20px;box-sizing:border-box;overflow-wrap:anywhere}
  .bt-ububble [class*="_markdown"],.bt-ububble a{color:inherit!important}
  .bt-ububble p{margin:0;line-height:22px}
-@@ -2842,239 +2842,221 @@ function installCompiledStyles(text, tag) {
-     timer = setTimeout(render, 120);
-   };
-   const onLoad = (event) => {
--    if (event.target instanceof HTMLLinkElement) schedule();
--  };
--  const observer = new MutationObserver(schedule);
--  observer.observe(document.head, { childList: true });
--  document.addEventListener("load", onLoad, true);
--  return () => {
+@@ -2848,233 +2848,215 @@ function installCompiledStyles(text, tag) {
+   observer.observe(document.head, { childList: true });
+   document.addEventListener("load", onLoad, true);
+   return () => {
 -    observer.disconnect();
 -    document.removeEventListener("load", onLoad, true);
 -    clearTimeout(timer);
@@ -2505,12 +2520,6 @@ diff --git a/client.js b/client.js
 -    return () => clearTimeout(timer);
 -  }, [state]);
 -  return settled;
-+    if (event.target instanceof HTMLLinkElement) schedule();
-+  };
-+  const observer = new MutationObserver(schedule);
-+  observer.observe(document.head, { childList: true });
-+  document.addEventListener("load", onLoad, true);
-+  return () => {
 +    observer.disconnect();
 +    document.removeEventListener("load", onLoad, true);
 +    clearTimeout(timer);
@@ -4456,7 +4465,8 @@ diff --git a/client.js b/client.js
 +      if (reply.kind === "notice" && room2?.origin === "face-to-face" && String(reply.text ?? "").trim() === WAITING_OTHERS_NOTICE) return null;
 +      if (reply.kind === "notice" || reply.kind === "joined" || reply.kind === "left" || reply.kind === "started") {
 +        return (0, import_react8.createElement)("div", { key: `notice-${index}`, className: "bt-event", "data-flybot": "face-notice" }, remoteMessageText(reply.text));
-+      }
+       }
+-      return (0, import_react6.createElement)(GroupMessage, { key: `${reply.botId}-${index}`, bot, text: reply.text, room: room2, roster, actions, msgKey: callId ? `${sessionId}:${callId}:${index}` : void 0, useUi });
 +      const remote = reply.remote || reply.handle && !roster.byId[reply.botId];
 +      if (remote) {
 +        return (0, import_react8.createElement)(RemoteMessage, {
@@ -4469,8 +4479,7 @@ diff --git a/client.js b/client.js
 +          msgKey: callId ? `${sessionId}:${callId}:${index}` : void 0,
 +          useUi
 +        });
-       }
--      return (0, import_react6.createElement)(GroupMessage, { key: `${reply.botId}-${index}`, bot, text: reply.text, room: room2, roster, actions, msgKey: callId ? `${sessionId}:${callId}:${index}` : void 0, useUi });
++      }
 +      return (0, import_react8.createElement)(GroupMessage, { key: `${reply.botId}-${index}`, bot, text: reply.text, room: room2, roster, actions, msgKey: callId ? `${sessionId}:${callId}:${index}` : void 0, useUi, seq: reply.seq });
      }),
      pending.map((id) => {
@@ -4868,7 +4877,7 @@ diff --git a/client.js b/client.js
        )
      )
    ), host);
-@@ -4731,49 +4731,440 @@ function showsDshRow(dsh, app) {
+@@ -4731,49 +4731,480 @@ function showsDshRow(dsh, app) {
    return dsh.kind === "app" && APP_OFFER.has(app?.phase) && sameVersion(app.version, dsh.verified);
  }
  
@@ -4973,6 +4982,19 @@ diff --git a/client.js b/client.js
 +var placeOf = (roster, roomId) => roomId && roomName(roster, roomId) ? t("in {name}", { name: roomName(roster, roomId) }) : "";
 +var lastWhy = (task) => [...task.actors ?? []].reverse().find((entry) => typeof entry.why === "string" && entry.why !== "")?.why ?? "";
 +var chatOfTask = (task) => task.origin?.roomId ?? task.origin?.sessionId ?? task.ownerBotId;
++var placeKey = (botId, roomId) => `${botId}|${roomId ?? ""}`;
++var partOf = (roster, chat) => roster.roomsById?.[chat] || !roster.byId?.[chat] ? chat : currentPart(roster.byId[chat]);
++var runningIn = (work, botId, roomId) => roomId === void 0 ? work.bots?.[botId]?.roomId === void 0 ? work.bots?.[botId] : void 0 : (work.rooms?.[roomId] ?? []).find((entry) => entry.botId === botId) ?? (work.bots?.[botId]?.roomId === roomId ? work.bots[botId] : void 0);
++function latestActivity(card, { roster, work, sessions }) {
++  const options = [];
++  if (card.kind === "task") options.push(lastWhy(card.task));
++  if (card.kind === "run" || card.kind === "task") {
++    const entry = card.executingBot ? runningIn(work, card.executingBot, roster.roomsById?.[card.chat] ? card.chat : void 0) : void 0;
++    if (entry) options.push(`${workPhrase(entry.tool)}…`);
++  }
++  if (sessions?.byId && card.chat) options.push(previewOf(sessions, partOf(roster, card.chat)));
++  return options.find((text) => typeof text === "string" && text !== "" && text !== card.title && text !== card.reason) ?? "";
++}
 +function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date.now() }) {
 +  const needs = [];
 +  const progress = [];
@@ -5038,6 +5060,29 @@ diff --git a/client.js b/client.js
 +  };
 +  for (const [botId, entry] of Object.entries(work.bots ?? {})) running(botId, entry, entry.roomId);
 +  for (const [roomId, entries2] of Object.entries(work.rooms ?? {})) for (const entry of entries2) running(entry.botId, entry, roomId);
++  const lastEnded = /* @__PURE__ */ new Map();
++  for (const entry of work.ended ?? []) {
++    const key = placeKey(entry.botId, entry.roomId);
++    if ((entry.at ?? 0) >= (lastEnded.get(key)?.at ?? -Infinity)) lastEnded.set(key, entry);
++  }
++  for (const [key, entry] of lastEnded) {
++    const bot = ownBot(roster, entry.botId);
++    if (bot === void 0 || entry.failed === void 0 || !fresh(entry.at) || seen.has(key) || waitingAt.has(key)) continue;
++    const chat = entry.roomId ?? bot.id;
++    const asked = sessions?.byId ? previewOf(sessions, partOf(roster, chat)) : "";
++    needs.push({
++      id: `turn:${entry.id}`,
++      kind: "turn",
++      status: "failed",
++      bot,
++      at: entry.at,
++      title: asked || t("The last turn did not finish"),
++      reason: entry.failed,
++      place: placeOf(roster, entry.roomId),
++      chat,
++      ...people(roster, bot.id)
++    });
++  }
 +  for (const task of tasks) {
 +    const bot = ownBot(roster, task.ownerBotId);
 +    if (bot === void 0) continue;
@@ -5062,6 +5107,7 @@ diff --git a/client.js b/client.js
 +  if (sessions?.byId) {
 +    for (const bot of roster.bots ?? []) {
 +      if (ownBot(roster, bot.id) === void 0 || work.bots?.[bot.id] !== void 0 || waitingAt.has(`${bot.id}|`)) continue;
++      if (lastEnded.get(placeKey(bot.id))?.failed !== void 0) continue;
 +      const part = currentPart(bot);
 +      const at = sessions.byId[part]?.updatedAt;
 +      if (!fresh(at)) continue;
@@ -5071,6 +5117,7 @@ diff --git a/client.js b/client.js
 +    }
 +  }
 +  const newest = (a, b) => (b.at ?? Infinity) - (a.at ?? Infinity);
++  for (const card of [...needs, ...progress, ...done]) card.activity = latestActivity(card, { roster, work, sessions });
 +  return { needs: needs.sort(newest), progress: progress.sort(newest), done: done.sort(newest).slice(0, DONE_MAX) };
 +}
 +var needsCount = (roster, work, tasks) => inboxModel({ roster, work, tasks }).needs.length;
@@ -5126,6 +5173,7 @@ diff --git a/client.js b/client.js
 +      ),
 +      (0, import_react11.createElement)("span", { className: "bt-inbox-title", title: card.title }, card.title),
 +      card.reason ? (0, import_react11.createElement)("span", { className: "bt-inbox-reason", title: card.reason }, card.reason) : null,
++      card.activity ? (0, import_react11.createElement)("span", { className: "bt-inbox-activity", title: card.activity }, t("Latest: {text}", { text: card.activity })) : null,
 +      card.hint ? (0, import_react11.createElement)("span", { className: "bt-inbox-hint" }, card.hint) : null,
 +      error ? (0, import_react11.createElement)("span", { className: "bt-inbox-error", role: "alert" }, error) : null
 +    ),
@@ -5250,7 +5298,8 @@ diff --git a/client.js b/client.js
 +.bt-inbox-status[data-tone=muted]{background:var(--bt-hover);color:var(--bt-ink-2)}
 +.bt-inbox-meta{min-width:0;font-size:12px;line-height:16px;color:var(--bt-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 +.bt-inbox-title{font-size:13.5px;line-height:19px;color:var(--bt-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
-+.bt-inbox-reason,.bt-inbox-hint{font-size:12px;line-height:16px;color:var(--bt-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
++.bt-inbox-reason,.bt-inbox-hint,.bt-inbox-activity{font-size:12px;line-height:16px;color:var(--bt-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
++.bt-inbox-activity{color:var(--bt-ink-3)}
 +.bt-inbox-error{font-size:12px;line-height:16px;color:#c21d2e;overflow-wrap:anywhere}
 +.bt-inbox-actions{flex:none;display:flex;align-items:center;gap:6px;align-self:center}
 +.bt-inbox-actions .bt-send{height:28px;font-size:12px}
diff --git a/patches/ds-bot/files/src/client/inbox.js b/patches/ds-bot/files/src/client/inbox.js
index 02d58a78..832d6162 100644
--- a/patches/ds-bot/files/src/client/inbox.js
+++ b/patches/ds-bot/files/src/client/inbox.js
@@ -2,7 +2,8 @@
 // done across my own Bots, opened from the Inbox row at the top of the sidebar. Built
 // only from data the client already has: the work snapshot's approvals and running
 // turns, the held-message counts on chats, the Bot chats' last activity and the task
-// records (src/host/tasks.js). No new host state. A tool approval is answered with the
+// records (src/host/tasks.js), and the ended turns the finish/fail notifications use
+// (work.ended, #353) for failed turns (#471). A tool approval is answered with the
 // same answer the group chat's card gives (actions.answerApproval); everything else,
 // and every Bot-sent message, is approved in its chat, so its card only has Open.
 import { createElement as h, useCallback, useEffect, useState } from 'react'
@@ -94,6 +95,27 @@ const roomName = (roster, id) => roster.roomsById?.[id]?.name
 const placeOf = (roster, roomId) => (roomId && roomName(roster, roomId) ? t('in {name}', { name: roomName(roster, roomId) }) : '')
 const lastWhy = task => [...(task.actors ?? [])].reverse().find(entry => typeof entry.why === 'string' && entry.why !== '')?.why ?? ''
 const chatOfTask = task => task.origin?.roomId ?? task.origin?.sessionId ?? task.ownerBotId
+const placeKey = (botId, roomId) => `${botId}|${roomId ?? ''}`
+// The Session a card's chat reads from: a group's own, a Bot's current part, else the id itself.
+const partOf = (roster, chat) => (roster.roomsById?.[chat] || !roster.byId?.[chat] ? chat : currentPart(roster.byId[chat]))
+// What a Bot runs in a place right now: its own chat's turn or its turn in that group.
+const runningIn = (work, botId, roomId) => (roomId === undefined
+  ? (work.bots?.[botId]?.roomId === undefined ? work.bots?.[botId] : undefined)
+  : (work.rooms?.[roomId] ?? []).find(entry => entry.botId === botId) ?? (work.bots?.[botId]?.roomId === roomId ? work.bots[botId] : undefined))
+
+// The card's one-line latest activity (#471): a task's newest note, else what its Bot runs
+// there now (not for a card that waits for me), else that chat's last line. Left out when it
+// only repeats the title or the reason.
+function latestActivity(card, { roster, work, sessions }) {
+  const options = []
+  if (card.kind === 'task') options.push(lastWhy(card.task))
+  if (card.kind === 'run' || card.kind === 'task') {
+    const entry = card.executingBot ? runningIn(work, card.executingBot, roster.roomsById?.[card.chat] ? card.chat : undefined) : undefined
+    if (entry) options.push(`${workPhrase(entry.tool)}…`)
+  }
+  if (sessions?.byId && card.chat) options.push(previewOf(sessions, partOf(roster, card.chat)))
+  return options.find(text => typeof text === 'string' && text !== '' && text !== card.title && text !== card.reason) ?? ''
+}
 
 /**
  * The three groups of cards, newest first in each.
@@ -146,6 +168,25 @@ export function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date
   }
   for (const [botId, entry] of Object.entries(work.bots ?? {})) running(botId, entry, entry.roomId)
   for (const [roomId, entries] of Object.entries(work.rooms ?? {})) for (const entry of entries) running(entry.botId, entry, roomId)
+  // Failed turns (#471), from the ended turns the finish/fail notifications read (#353): a
+  // failure needs me while it is the latest ended turn in its place (a Bot's own chat or one
+  // group) and the Bot is not working or waiting there again. A later finished turn clears it.
+  const lastEnded = new Map()
+  for (const entry of work.ended ?? []) {
+    const key = placeKey(entry.botId, entry.roomId)
+    if ((entry.at ?? 0) >= (lastEnded.get(key)?.at ?? -Infinity)) lastEnded.set(key, entry)
+  }
+  for (const [key, entry] of lastEnded) {
+    const bot = ownBot(roster, entry.botId)
+    if (bot === undefined || entry.failed === undefined || !fresh(entry.at) || seen.has(key) || waitingAt.has(key)) continue
+    const chat = entry.roomId ?? bot.id
+    const asked = sessions?.byId ? previewOf(sessions, partOf(roster, chat)) : ''
+    needs.push({
+      id: `turn:${entry.id}`, kind: 'turn', status: 'failed', bot, at: entry.at,
+      title: asked || t('The last turn did not finish'), reason: entry.failed,
+      place: placeOf(roster, entry.roomId), chat, ...people(roster, bot.id),
+    })
+  }
   // Task records (#54).
   for (const task of tasks) {
     const bot = ownBot(roster, task.ownerBotId)
@@ -164,6 +205,8 @@ export function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date
   if (sessions?.byId) {
     for (const bot of roster.bots ?? []) {
       if (ownBot(roster, bot.id) === undefined || work.bots?.[bot.id] !== undefined || waitingAt.has(`${bot.id}|`)) continue
+      // Its last turn failed: that card is in Needs you.
+      if (lastEnded.get(placeKey(bot.id))?.failed !== undefined) continue
       const part = currentPart(bot)
       const at = sessions.byId[part]?.updatedAt
       if (!fresh(at)) continue
@@ -173,6 +216,7 @@ export function inboxModel({ roster, work = {}, tasks = [], sessions, now = Date
     }
   }
   const newest = (a, b) => (b.at ?? Infinity) - (a.at ?? Infinity)
+  for (const card of [...needs, ...progress, ...done]) card.activity = latestActivity(card, { roster, work, sessions })
   return { needs: needs.sort(newest), progress: progress.sort(newest), done: done.sort(newest).slice(0, DONE_MAX) }
 }
 
@@ -220,6 +264,7 @@ export function InboxCard({ card, roster, now, busy, error, onAnswer, onOpen })
         h('span', { className: 'bt-inbox-meta', title: meta }, meta)),
       h('span', { className: 'bt-inbox-title', title: card.title }, card.title),
       card.reason ? h('span', { className: 'bt-inbox-reason', title: card.reason }, card.reason) : null,
+      card.activity ? h('span', { className: 'bt-inbox-activity', title: card.activity }, t('Latest: {text}', { text: card.activity })) : null,
       card.hint ? h('span', { className: 'bt-inbox-hint' }, card.hint) : null,
       error ? h('span', { className: 'bt-inbox-error', role: 'alert' }, error) : null),
     h('span', { className: 'bt-inbox-actions' },
@@ -322,7 +367,8 @@ export const INBOX_CSS = `
 .bt-inbox-status[data-tone=muted]{background:var(--bt-hover);color:var(--bt-ink-2)}
 .bt-inbox-meta{min-width:0;font-size:12px;line-height:16px;color:var(--bt-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .bt-inbox-title{font-size:13.5px;line-height:19px;color:var(--bt-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
-.bt-inbox-reason,.bt-inbox-hint{font-size:12px;line-height:16px;color:var(--bt-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bt-inbox-reason,.bt-inbox-hint,.bt-inbox-activity{font-size:12px;line-height:16px;color:var(--bt-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+.bt-inbox-activity{color:var(--bt-ink-3)}
 .bt-inbox-error{font-size:12px;line-height:16px;color:#c21d2e;overflow-wrap:anywhere}
 .bt-inbox-actions{flex:none;display:flex;align-items:center;gap:6px;align-self:center}
 .bt-inbox-actions .bt-send{height:28px;font-size:12px}
diff --git a/patches/ds-bot/files/test/inbox.test.js b/patches/ds-bot/files/test/inbox.test.js
index fee31567..86d96293 100644
--- a/patches/ds-bot/files/test/inbox.test.js
+++ b/patches/ds-bot/files/test/inbox.test.js
@@ -256,3 +256,81 @@ test('the sidebar has one Inbox row at its top, and the dialog is an overlay', (
   assert.ok(sidebar.indexOf('h(InboxRow,') < sidebar.indexOf("className: 'bt-list'"))
   assert.match(readFileSync(new URL('../src/client/overlays.js', import.meta.url), 'utf8'), /h\(InboxDialog,/)
 })
+
+// #471: failed turns from the ended turns the finish/fail notifications use (#353), and a
+// one-line latest activity on each card.
+const endedWork = {
+  ...work,
+  ended: [
+    { id: 'e1', botId: 'b2', sessionId: 's2', at: NOW - 10 * 60_000 },
+    { id: 'e2', botId: 'b2', sessionId: 's2', at: NOW - 5 * 60_000, failed: 'upstream busy' },
+    { id: 'e3', botId: 'b3', roomId: 'r1', at: NOW - 3 * 60_000, failed: 'quota' },
+    { id: 'e4', botId: 'b1', sessionId: 's1', at: NOW - 4 * 60_000, failed: 'timeout' },
+    { id: 'e5', botId: 'f1', sessionId: 'f1', at: NOW - 60_000, failed: 'friend side' },
+    { id: 'e6', botId: 'b3', sessionId: 's3', at: NOW - 8 * DAY, failed: 'too old' },
+    { id: 'e7', botId: 'b1', roomId: 'r2', at: NOW - 9 * 60_000, failed: 'gone' },
+    { id: 'e8', botId: 'b1', roomId: 'r2', at: NOW - 2 * 60_000 },
+  ],
+}
+const endedSessions = {
+  byId: {
+    ...sessions.byId,
+    r1: { updatedAt: NOW - 60_000, projectionValues: { turnOutline: [{ turn: 4, prompt: 'Ship the release notes', response: '' }] } },
+  },
+}
+const endedModel = inboxModel({ roster, work: endedWork, tasks, sessions: endedSessions, now: NOW })
+
+test('a failed turn of my own Bot needs me while it is the latest turn in its chat and the Bot is not back at work there', () => {
+  const turns = endedModel.needs.filter(card => card.kind === 'turn')
+  // b3 in Ops waits for approval a1 and b1 runs again in its own chat; r2's failure was
+  // followed by a finished turn; f1 is a friend's Bot; e6 is older than 7 days.
+  assert.deepEqual(plain(ids(turns)), ['turn:e2'])
+  const [card] = turns
+  assert.equal(card.status, 'failed')
+  assert.equal(card.reason, 'upstream busy')
+  assert.equal(card.chat, 'b2')
+  assert.equal(card.title, 'Here is the weekly summary of everything that changed')
+  assert.equal(card.executingBot, 'b2')
+  // The chat whose last turn failed is not also Done.
+  assert.ok(!ids(endedModel.done).includes('chat:b2'))
+  assert.equal(needsCount(roster, endedWork, tasks), model.needs.length + 1)
+  // Without the Session list (the row's badge), the title says what happened.
+  assert.equal(inboxModel({ roster, work: endedWork, tasks, now: NOW }).needs.find(entry => entry.id === 'turn:e2').title, 'The last turn did not finish')
+  assert.deepEqual(plain(buttons(draw(card)).map(textOf)), ['Open'])
+})
+
+test('a failure no longer needs me once the Bot works or waits there again', () => {
+  const again = inboxModel({ roster, work: { ...endedWork, bots: { ...endedWork.bots, b2: { since: NOW - 1000 } } }, tasks, sessions: endedSessions, now: NOW })
+  assert.ok(!ids(again.needs).includes('turn:e2'))
+  const freed = inboxModel({ roster, work: { ...endedWork, approvals: [], rooms: {} }, tasks, sessions: endedSessions, now: NOW })
+  assert.ok(ids(freed.needs).includes('turn:e3'))
+  assert.equal(freed.needs.find(card => card.id === 'turn:e3').place, 'in Ops')
+})
+
+test('each card has a one-line latest activity that never repeats its title or reason', () => {
+  const byId = Object.fromEntries([...endedModel.needs, ...endedModel.progress, ...endedModel.done].map(card => [card.id, card]))
+  // An approval and a running turn in Ops show that chat's last line.
+  assert.equal(byId['approval:a1'].activity, 'Ship the release notes')
+  assert.equal(byId['run:b1|r1'].activity, 'Ship the release notes')
+  // A held message in b2's chat shows its last line; a task its newest note.
+  assert.equal(byId['held:b2'].activity, 'Here is the weekly summary of everything that changed')
+  const noted = inboxModel({ roster, work, tasks: [task('t10', 'working', { actors: [{ status: 'claimed', why: 'Reading the spec' }] })], now: NOW })
+  assert.equal(noted.progress.find(card => card.id === 'task:t10').activity, 'Reading the spec')
+  // A running task's Bot shows the tool it runs when there is no note.
+  const busy = inboxModel({ roster, work: { bots: { b2: { since: NOW - 1000, tool: 'pwsh' } } }, tasks: [task('t11', 'working')], now: NOW })
+  assert.match(busy.progress.find(card => card.id === 'task:t11').activity, /…$/)
+  // Repeats are left out: the failed turn's title is its chat's last line, the failed task's
+  // reason its newest note (so its chat's last line shows instead).
+  assert.equal(byId['turn:e2'].activity, '')
+  assert.equal(byId['task:t2'].activity, 'Here is the weekly summary of everything that changed')
+  assert.equal(inboxModel({ roster, work: {}, tasks, sessions, now: NOW }).done.find(card => card.id === 'chat:b2').activity, '')
+  for (const card of Object.values(byId)) {
+    assert.ok(card.activity !== card.title || card.activity === '', card.id)
+    const rows = byClass(draw(card), 'bt-inbox-activity')
+    assert.equal(rows.length, card.activity ? 1 : 0, card.id)
+    if (card.activity) {
+      assert.equal(rows[0].props.title, card.activity)
+      assert.equal(textOf(rows[0]), `Latest: ${card.activity}`)
+    }
+  }
+})