diff --git a/changelog.d/1508-title-code-points.fixed.md b/changelog.d/1508-title-code-points.fixed.md
new file mode 100644
index 000000000..c25c13d50
--- /dev/null
+++ b/changelog.d/1508-title-code-points.fixed.md
@@ -0,0 +1 @@
+Workflow Runs and timeline rows now show the whole task title (`#id · title`) with a single-line CSS ellipsis and the full text in the tooltip, so a title containing an emoji or a CJK Ext-B character can no longer be cut mid-character and render as a replacement character ([#1508](https://github.com/ThinkFlowLab/FlyBot/issues/1508)).
diff --git a/plugins/workflow/client.js b/plugins/workflow/client.js
index 21c1a8f61..f19a7cf3f 100644
--- a/plugins/workflow/client.js
+++ b/plugins/workflow/client.js
@@ -324,20 +324,21 @@ window.__ModuleLoader__.load({
       if (text.startsWith('task-')) return `#${text.slice(-6)}`
       return text
     }
+    // The row clips itself with CSS (single line + ellipsis) and the full title
+    // rides in a tooltip, so never cut the string: a UTF-16 offset can land
+    // inside a surrogate pair and render an emoji/CJK Ext-B title as a replacement character.
     function taskSummary(task, run) {
       if (run?.taskSummary) return run.taskSummary
       const id = shortId(task?.id ?? '')
       const title = String(task?.title ?? '').replace(/\s+/g, ' ').trim()
       if (!id && !title) return ''
       if (!title) return id
-      if (!id) return title.length > 72 ? `${title.slice(0, 69)}…` : title
+      if (!id) return title
       // Remove issue number prefix from title if it duplicates the id
       let cleanTitle = title
       const issueMatch = title.match(/^issue\s+#?\d+\s*[:\-–—]\s*/i)
       if (issueMatch && id) cleanTitle = title.slice(issueMatch[0].length)
-      const room = Math.max(24, 72 - id.length - 3)
-      const short = cleanTitle.length > room ? `${cleanTitle.slice(0, room - 1)}…` : cleanTitle
-      return `${id} · ${short}`
+      return `${id} · ${cleanTitle}`
     }
     function sidebarPreview(item) {
       const busy = (item.activeCount ?? 0) > 0 && item.run?.live === true
diff --git a/plugins/workflow/src/graph.js b/plugins/workflow/src/graph.js
index 30d07b397..215508ebd 100644
--- a/plugins/workflow/src/graph.js
+++ b/plugins/workflow/src/graph.js
@@ -18,8 +18,12 @@ function stripControls(value) {
   return out
 }
 
+// Cut on code points, never on UTF-16 units: a unit offset can split a surrogate
+// pair and leave a lone surrogate, which renders as a replacement character.
 export function cleanLine(value, max = 300) {
-  return stripControls(value).replace(/\s+/g, ' ').trim().slice(0, max)
+  const text = stripControls(value).replace(/\s+/g, ' ').trim()
+  if (!Number.isFinite(max) || text.length <= max) return text
+  return Array.from(text).slice(0, max).join('')
 }
 
 // A node prompt keeps line breaks. Other controls become spaces.
@@ -817,9 +821,11 @@ export function chainLabel(graph) {
   return graph.layers.map(layer => layer.map(id => nodeById(graph, id)?.name ?? id).join(' ‖ ')).join(' → ')
 }
 
-export function summarizeTask(task, maxTitle = 72) {
+// The label is rendered whole: the row clips it with CSS ellipsis and the full
+// title stays in the tooltip, so a length cap here only risks a split character.
+export function summarizeTask(task) {
   const id = cleanLine(task?.id, 80)
-  const title = cleanLine(task?.title, maxTitle)
+  const title = cleanLine(task?.title, Infinity)
   if (!id && !title) return ''
   if (!title) return id
   if (!id) return title
diff --git a/plugins/workflow/test/client.test.js b/plugins/workflow/test/client.test.js
index 3d209dd62..ae2e7d5ff 100644
--- a/plugins/workflow/test/client.test.js
+++ b/plugins/workflow/test/client.test.js
@@ -754,6 +754,21 @@ function longLine(kind) {
   return line
 }
 
+// A lone surrogate is what a UTF-16 cut leaves behind; it renders as \u{FFFD}.
+function hasLoneSurrogate(text) {
+  for (let i = 0; i < text.length; i += 1) {
+    const code = text.charCodeAt(i)
+    if (code >= 0xd800 && code <= 0xdbff) {
+      const next = text.charCodeAt(i + 1)
+      if (!(next >= 0xdc00 && next <= 0xdfff)) return true
+      i += 1
+      continue
+    }
+    if (code >= 0xdc00 && code <= 0xdfff) return true
+  }
+  return false
+}
+
 function assertFull(text, line) {
   assert.equal(text.includes(line), true, `the stage chat dropped part of a ${line.length}-character line`)
   assert.equal(text.includes(`${line.slice(0, 239)}…`), false, 'the stage chat still clipped a line at 240 characters')
@@ -778,9 +793,11 @@ test('a long roster Bot line in the stage chat renders in full', async () => {
   assertFull(text, long)
 })
 
-test('the stage strip still clips a long task title as a summary', async () => {
+test('a long emoji/CJK Ext-B task title renders whole, never cut mid-character', async () => {
   const graph = delivery()
-  const longTitle = '让发布说明覆盖四个小节并保留每条验收命令的原文'.repeat(12)
+  // 60 UTF-16 units then an astral pair: the old 61st-unit cut landed inside the
+  // surrogate pair and left a lone surrogate (rendered as \u{FFFD}).
+  const longTitle = `${'发布说明'.repeat(15)}🚀𠀋${'验收命令'.repeat(12)}`
   graph.run.task = { id: '#1460', title: longTitle }
   delete graph.run.taskSummary
   const call = async (name) => {
@@ -791,11 +808,24 @@ test('the stage strip still clips a long task title as a summary', async () => {
   await settle()
   findAll(view.tree, node => node.type === 'button' && textOf(node).includes('发布交付流水线'))[0].props.onClick()
   await settle()
-  const text = textOf(view.tree)
   const summary = client.taskSummary({ id: '#1460', title: longTitle })
-  assert.equal(text.includes(summary), true, 'the stage strip lost its task summary')
-  assert.equal(text.includes(longTitle), false, 'the stage strip rendered a full task title instead of a summary')
-  assert.equal(summary.endsWith('…'), true)
+  assert.equal(summary, `#1460 · ${longTitle}`, 'the task summary is not the whole id and title')
+  assert.equal(hasLoneSurrogate(summary), false, 'the task summary ends in a lone surrogate')
+  assert.equal(textOf(view.tree).includes(longTitle), true, 'the stage strip dropped part of the task title')
+
+  // The tooltip keeps the whole title, and the row clips itself in CSS instead.
+  const label = findAll(view.tree, node => node.props?.className === 'wf-tk')[0]
+  assert.equal(label.props.title, longTitle, 'the row tooltip lost the whole title')
+  const css = readFileSync(new URL('../client.js', import.meta.url), 'utf8')
+  const rule = css.split('\n').find(line => line.startsWith('.wf-tk{'))
+  assert.match(rule, /white-space:nowrap/, 'the task row is no longer single-line')
+  assert.match(rule, /text-overflow:ellipsis/, 'the task row no longer ellipsizes')
+
+  // An id-less title takes the other branch, which used to cut at 69 units.
+  const bareTitle = `${'验收命令'.repeat(17)}🚀`
+  const bare = client.taskSummary({ title: bareTitle })
+  assert.equal(bare, bareTitle, 'the id-less task summary is not the whole title')
+  assert.equal(hasLoneSurrogate(bare), false, 'the id-less task summary ends in a lone surrogate')
   view.unmount()
 })
 
diff --git a/plugins/workflow/test/graph.test.js b/plugins/workflow/test/graph.test.js
index 7d8b0f9f1..f7484b33a 100644
--- a/plugins/workflow/test/graph.test.js
+++ b/plugins/workflow/test/graph.test.js
@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict'
 import { test } from 'node:test'
 import {
-  addNode, chainLabel, completeNode, connectNodes, doneCount, failNode, freshStatus, layerMarks,
+  addNode, chainLabel, cleanLine, completeNode, connectNodes, doneCount, failNode, freshStatus, layerMarks,
   moveNode, nextDemoOp, normalizeGraph, reconnectEdge, removeEdge, removeNode, retryNode,
   rowPreview, startFrontier, summarizeTask, validateGraph,
 } from '../src/graph.js'
@@ -9,6 +9,20 @@ import { deliveryWorkflow, weeklyWorkflow } from '../src/template.js'
 
 const delivery = deliveryWorkflow()
 
+function hasLoneSurrogate(text) {
+  for (let i = 0; i < text.length; i += 1) {
+    const code = text.charCodeAt(i)
+    if (code >= 0xd800 && code <= 0xdbff) {
+      const next = text.charCodeAt(i + 1)
+      if (!(next >= 0xdc00 && next <= 0xdfff)) return true
+      i += 1
+      continue
+    }
+    if (code >= 0xdc00 && code <= 0xdfff) return true
+  }
+  return false
+}
+
 function runToCoder() {
   let status = freshStatus(delivery)
   status = startFrontier(delivery, status).status
@@ -156,5 +170,21 @@ test('the sidebar line names a live running Bot, never a demo script', () => {
   assert.equal(rowPreview(delivery, paused), '已暂停 · Coder · #1280')
   assert.equal(rowPreview(weeklyWorkflow(), { status: 'done', live: true, nodeStatus: {}, task: { id: 'W42' } }), '下次运行：周五 17:00')
   assert.equal(rowPreview(delivery, null), '等待任务')
-  assert.equal(summarizeTask({ id: '#9', title: 'a'.repeat(120) }).length <= 80, true)
+  assert.equal(summarizeTask({ id: '#9', title: 'a'.repeat(120) }).length <= 80, false)
+})
+
+test('a long task label keeps its whole title and never ends in a lone surrogate', () => {
+  const plain = 'a'.repeat(120)
+  assert.equal(summarizeTask({ id: '#9', title: plain }), `#9 · ${plain}`)
+
+  // 71 units then an astral pair: the old 72-unit cap split the pair in half.
+  const astralTitle = `${'发布说明'.repeat(17)}验收命🚀`
+  const astral = summarizeTask({ id: '#9', title: astralTitle })
+  assert.equal(astral, `#9 · ${astralTitle}`)
+  assert.equal(astral.includes('\uFFFD'), false)
+  assert.equal(hasLoneSurrogate(astral), false, 'summarizeTask left a lone surrogate in the label')
+
+  // cleanLine still cuts when it must, but on code points.
+  assert.equal(cleanLine('🚀'.repeat(10), 7), '🚀'.repeat(7))
+  assert.equal(hasLoneSurrogate(cleanLine('🚀'.repeat(10), 7)), false)
 })