diff --git a/docs/plans/2026-09-14-tasks-graph-workflow-teams-design.md b/docs/plans/2026-09-14-tasks-graph-workflow-teams-design.md
index 7600fd2..c80c94a 100644
--- a/docs/plans/2026-09-14-tasks-graph-workflow-teams-design.md
+++ b/docs/plans/2026-09-14-tasks-graph-workflow-teams-design.md
@@ -115,6 +115,26 @@ client 半（src/client/）
 
 i18n：本轮新增 19 条文案，zh/en/ja + 18 份第三语言词典同步（`tests/locales.spec.ts` 16/16）。
 
+## 第三轮返工（2026-09-14 深夜，交互统一）
+
+用户第三轮反馈两点，都指向「减少控件、统一入口」：
+
+| 反馈 | 做法 |
+|---|---|
+| 图卡片去掉详情按钮，「统一改为弹出详细」 | 删除每张卡片右上角的 `…` 按钮（树行同理）：**卡片/行本身就是详情入口**，点击即弹详情窗口；跳转转录改为详情窗口内的主按钮。折叠聚合节点仍保留「点击=展开/再折叠」的语义 |
+| 任务所有入口统一为「点击弹出非全屏可拖动编辑（兼查看）窗口」，含 编辑owner + 编辑 + 重开 + 删除；默认多行 markdown 预览，点编辑才进入多行编辑 | 新增单一组件 `TaskWindow.tsx`：`TaskWindow`（内容）+ `TaskPopover`（可拖动外壳，宽 430）+ `MultilineField`（自建多行输入）+ `OwnerPicker`（Pill 即点即改派）+ `TaskCreateButton`。三处入口全部复用它——任务板行、节点任务行、节点详情里的任务清单；「新建」也走同一个窗口（create 模式直接进入编辑态）。任务板由此**删掉了溢出菜单与 Modal**，只留筛选 Pills、任务行与新建按钮 |
+
+新文案 3 条（任务详情 / 暂无描述 / 被阻塞），zh/en/ja + 18 份第三语言同步。
+
+组件复用清单（本轮）：
+
+| 组件 | 复用点 |
+|---|---|
+| `TaskPopover` | 任务板行、节点任务行、节点详情任务清单、新建按钮（4 处） |
+| `MultilineField` | 任务描述编辑（宿主 primitives 无多行输入，故自建） |
+| `TaskCreateButton` | 任务板 / 其它入口共用同一外观 |
+| `AgentGlyph` / `WorkflowGlyph` / `FoldGlyph` / `TaskLine` | 图与树两种模式共用 |
+
 ## 验证结果（2026-09-14）
 
 PR：[#680](https://github.com/omdsh-dev/DSH-better-sidebar/pull/680)（分支 `feat/tasks-graph-workflow-teams`）。
diff --git a/src/client/AnchoredPopover.tsx b/src/client/AnchoredPopover.tsx
index be9e09a..1092e5a 100644
--- a/src/client/AnchoredPopover.tsx
+++ b/src/client/AnchoredPopover.tsx
@@ -86,7 +86,7 @@ export function AnchoredPopover(props: AnchoredPopoverProps): ReactNode {
     if (!draggable || event.button !== 0) return
     const target = event.target as HTMLElement
     // A control inside the card (copy, kill, follow…) must not start a drag.
-    if (target.closest('button, input, select, a, [data-popover-no-drag]') !== null) return
+    if (target.closest('button, input, textarea, select, a, [data-popover-no-drag]') !== null) return
     event.preventDefault()
     const startX = event.clientX
     const startY = event.clientY
diff --git a/src/client/SubagentView.tsx b/src/client/SubagentView.tsx
index c86cd9f..e28d6ff 100644
--- a/src/client/SubagentView.tsx
+++ b/src/client/SubagentView.tsx
@@ -49,6 +49,7 @@ import { JobsDrawer, JobOutputPopoverContent } from './JobsDrawer.tsx'
 import { AnchoredPopover } from './AnchoredPopover.tsx'
 import { AgentNodePopover, WorkflowNodePopover } from './TasksPopovers.tsx'
 import { TeamBoard } from './TeamBoard.tsx'
+import { TaskPopover } from './TaskWindow.tsx'
 import type { SidebarStore } from './state.ts'
 import type { WorkflowRunView } from '../workflow-runs.ts'
 import legacy from './SubagentView.module.css'
@@ -133,6 +134,8 @@ type PagePopover =
   | { kind: 'node'; nodeId: string; anchor: HTMLElement }
   | { kind: 'workflow'; nodeId: string; anchor: HTMLElement }
   | { kind: 'job'; jobId: string; anchor: HTMLElement }
+  /** The shared task window; taskId undefined = create mode. */
+  | { kind: 'task'; taskId: string | undefined; anchor: HTMLElement }
 
 /**
  * The sidebar's Tasks page.
@@ -274,9 +277,8 @@ export function SubagentView(props: {
     void sessions.refreshSubagents?.(parentSessionId)
   }, [sessions])
 
-  /** Node click = jump to the transcript (synthesized members without a
-   *  session address open their detail popover instead). */
-  const activateNode = useCallback((node: TasksAgentNode): void => {
+  /** Jump from the detail window into the node's transcript. */
+  const jumpToNode = useCallback((node: TasksAgentNode): void => {
     if (node.childAddress !== undefined) {
       openChild(node.childAddress)
       setPopover(null)
@@ -286,10 +288,21 @@ export function SubagentView(props: {
       openMain()
       setPopover(null)
     }
-    // Synthesized workflow members without a childId have no transcript to
-    // jump to: their ⓘ popover is the only detail surface.
   }, [openChild, openMain])
 
+  /** Open the shared task window from a board row (undefined = create). */
+  const openTaskFromBoard = useCallback((
+    task: { id: string } | undefined,
+    anchor: HTMLElement,
+  ): void => {
+    setPopover({ kind: 'task', taskId: task?.id, anchor })
+  }, [])
+
+  /** Open the shared task window by id (node task lines, detail lists). */
+  const openTaskById = useCallback((taskId: string, anchor: HTMLElement): void => {
+    setPopover({ kind: 'task', taskId, anchor })
+  }, [])
+
   const totals = useMemo(
     () => rootId === undefined
       ? { count: 0, runningCount: 0 }
@@ -351,6 +364,25 @@ export function SubagentView(props: {
   /** The current popover's resolved content (subjects re-resolve live). */
   const popoverContent = ((): ReactNode => {
     if (popover === null) return null
+    if (popover.kind === 'task') {
+      if (teamView?.available !== true || teamView.team === null || rootId === undefined) return null
+      const task = popover.taskId === undefined
+        ? undefined
+        : teamView.team.tasks.find(candidate => candidate.id === popover.taskId)
+      // A task that vanished (deleted elsewhere) closes the window instead of
+      // showing a stale card.
+      if (popover.taskId !== undefined && task === undefined) return null
+      return (
+        <TaskPopover
+          rootId={rootId}
+          task={task}
+          members={teamView.team.members}
+          onChanged={team.refresh}
+          onClose={closePopover}
+          anchor={popover.anchor}
+        />
+      )
+    }
     if (popover.kind === 'job') {
       const row = jobRows.find(candidate => candidate.job.id === popover.jobId)
       if (row === undefined) return null
@@ -370,11 +402,8 @@ export function SubagentView(props: {
       return (
         <AgentNodePopover
           node={node}
-          onJump={(target) => {
-            if (target.childAddress !== undefined) openChild(target.childAddress)
-            else openMain()
-            setPopover(null)
-          }}
+          onJump={jumpToNode}
+          onOpenTask={openTaskById}
         />
       )
     }
@@ -410,7 +439,7 @@ export function SubagentView(props: {
           rootId={rootId}
           members={teamView.team.members}
           tasks={teamView.team.tasks}
-          onChanged={team.refresh}
+          onOpenTask={openTaskFromBoard}
           collapsed={teamBoardCollapsed}
           onToggleCollapsed={() => { setTeamBoardCollapsed(current => !current) }}
         />
@@ -441,9 +470,9 @@ export function SubagentView(props: {
               nodes={model}
               folded={folded}
               rootId={rootId}
-              onActivate={activateNode}
               onNodeInfo={(node, anchor) => { setPopover({ kind: 'node', nodeId: node.id, anchor }) }}
               onWorkflowInfo={(node, anchor) => { setPopover({ kind: 'workflow', nodeId: node.id, anchor }) }}
+              onOpenTask={openTaskById}
               onToggleFold={() => { setFolded(current => !current) }}
               mode={mode}
               onModeChange={setModeOverride}
@@ -454,9 +483,9 @@ export function SubagentView(props: {
               nodes={model}
               folded={folded}
               loading={summaryBackedLoading}
-              onActivate={activateNode}
               onNodeInfo={(node, anchor) => { setPopover({ kind: 'node', nodeId: node.id, anchor }) }}
               onWorkflowInfo={(node, anchor) => { setPopover({ kind: 'workflow', nodeId: node.id, anchor }) }}
+              onOpenTask={openTaskById}
               onToggleFold={() => { setFolded(current => !current) }}
               mode={mode}
               onModeChange={setModeOverride}
@@ -473,14 +502,18 @@ export function SubagentView(props: {
             : { kind: 'job', jobId: row.job.id, anchor })
         }}
       />
-      <AnchoredPopover
-        anchor={popover?.anchor ?? null}
-        onClose={closePopover}
-        draggable={popover?.kind === 'job'}
-        width={popover?.kind === 'job' ? 380 : 280}
-      >
-        {popoverContent}
-      </AnchoredPopover>
+      {popover?.kind === 'task'
+        ? popoverContent
+        : (
+          <AnchoredPopover
+            anchor={popover?.anchor ?? null}
+            onClose={closePopover}
+            draggable={popover?.kind === 'job'}
+            width={popover?.kind === 'job' ? 380 : 280}
+          >
+            {popoverContent}
+          </AnchoredPopover>
+        )}
     </div>
   )
 }
diff --git a/src/client/TaskWindow.tsx b/src/client/TaskWindow.tsx
new file mode 100644
index 0000000..51414f8
--- /dev/null
+++ b/src/client/TaskWindow.tsx
@@ -0,0 +1,434 @@
+/**
+ * The ONE task window: view, edit and create all live here, and every task
+ * surface (the board's rows, an agent node's task line, the node detail
+ * popover) opens THIS component — pointer targets stay thin, the window owns
+ * the behaviour.
+ *
+ * Shape: a non-fullscreen, DRAGGABLE card (never a modal dialog). Details
+ * render as multi-line MARKDOWN by default; 编辑 switches the same card into
+ * multi-line editing, so reading and writing never jump between surfaces.
+ * Actions: owner reassignment (Pills, CAS-immediate), edit/save, reopen or
+ * complete, and a two-step delete.
+ *
+ * Host primitives everywhere (Button / Input / Pill / Tag / StateDot) plus
+ * the plugin's own `MultilineField` (the host set ships no multi-line input)
+ * and the shared `MarkdownText` renderer with the plugin's copy labels.
+ */
+import { useEffect, useRef, useState, type ReactNode } from 'react'
+import {
+  Button, IconCheckOutline14, IconCloseOutline16, IconEditOutline16, IconPlusOutline16,
+  IconRefreshOutline14, IconTrashOutline16, Input, MarkdownText, Pill, StateDot, Tag,
+} from '@deepseek-ai/dsh-client-ui-primitives'
+import type { SidebarTeamMemberView, SidebarTeamTaskView } from '../context-types.ts'
+import { api } from './api.ts'
+import { markdownTextProps } from './markdown-labels.tsx'
+import { AnchoredPopover } from './AnchoredPopover.tsx'
+import { t, type CopyKey } from './locales.ts'
+import css from './tasks-graph.module.css'
+
+/** One mutation outcome (the host route's own union). */
+type MutationResult = { ok: true } | { ok: false; error: { code: string; message: string } }
+
+/** The task status label key. */
+function taskStatusKey(status: SidebarTeamTaskView['status']): CopyKey {
+  switch (status) {
+    case 'pending': return 'teamTaskPending'
+    case 'in_progress': return 'teamTaskInProgress'
+    case 'completed': return 'teamTaskCompleted'
+    case 'deleted': return 'teamTaskDeleted'
+  }
+}
+
+/**
+ * The plugin's own multi-line input: the host primitive set ships no
+ * textarea, so this is OUR component (token-styled, drag-exempt) and every
+ * multi-line edit in the page goes through it.
+ */
+export function MultilineField(props: {
+  value: string
+  label: string
+  placeholder?: string
+  rows?: number
+  onChange?(next: string): void
+}): ReactNode {
+  return (
+    <textarea
+      className={css.taskTextarea}
+      value={props.value}
+      rows={props.rows ?? 7}
+      placeholder={props.placeholder}
+      aria-label={props.label}
+      data-popover-no-drag
+      onChange={(event) => { props.onChange?.(event.target.value) }}
+    />
+  )
+}
+
+/** The owner picker (Pills; CAS-immediate, so it is never a draft field). */
+function OwnerPicker(props: {
+  members: readonly SidebarTeamMemberView[]
+  owner: string | undefined
+  disabled: boolean
+  onPick(owner: string): void
+}): ReactNode {
+  return (
+    <div className={css.taskOwnerRow}>
+      <Pill
+        active={props.owner === undefined}
+        disabled={props.disabled}
+        onClick={() => { props.onPick('') }}
+      >
+        {t('teamTaskUnowned')}
+      </Pill>
+      {props.members.map(member => (
+        <Pill
+          key={member.id}
+          active={props.owner === member.name}
+          disabled={props.disabled}
+          onClick={() => { props.onPick(member.name) }}
+        >
+          {member.name}
+        </Pill>
+      ))}
+    </div>
+  )
+}
+
+/** The read-only body: markdown description, meta, owner picker. */
+function TaskViewBody(props: {
+  task: SidebarTeamTaskView
+  teammates: readonly SidebarTeamMemberView[]
+  busy: boolean
+  onReassign(owner: string): void
+}): ReactNode {
+  const { task } = props
+  const body = task.description.trim()
+  return (
+    <>
+      <div className={css.jobPopTitle}>
+        <StateDot
+          size={6}
+          state={task.status === 'completed' ? 'done' : task.ready ? 'ongoing' : 'warning'}
+        />
+        <span className={css.popTitle} title={task.subject}>{task.subject}</span>
+        <Tag tone={task.status === 'completed' ? 'success' : task.ready ? 'info' : 'warning'}>
+          {t(task.ready ? taskStatusKey(task.status) : 'teamTaskBlocked')}
+        </Tag>
+      </div>
+      <div className={css.jobPopMeta}>
+        <span className={css.popKey}>{t('teamTaskOwner')}</span>
+        <span>{task.ownerName ?? t('teamTaskUnowned')}</span>
+        {task.blockedBy.length > 0 && (
+          <>
+            <span className={css.popKey}>{t('teamTaskBlockedBy')}</span>
+            <span>{task.blockedBy.join(' · ')}</span>
+          </>
+        )}
+      </div>
+      <div className={css.taskMarkdown}>
+        {body === ''
+          ? <div className={css.popHint}>{t('teamTaskNoDescription')}</div>
+          : (
+            <MarkdownText
+              {...markdownTextProps(body, { copyLabel: t('copy'), copiedLabel: t('copied') })}
+            />
+          )}
+      </div>
+      <div className={css.taskField}>
+        <span className={css.taskLabel}>{t('teamTaskOwner')}</span>
+        <OwnerPicker
+          members={props.teammates}
+          owner={task.ownerName}
+          disabled={props.busy}
+          onPick={props.onReassign}
+        />
+      </div>
+    </>
+  )
+}
+
+/** The editing body: subject (host Input) + description (our multi-line field). */
+function TaskEditBody(props: {
+  subject: string
+  description: string
+  onSubject(next: string): void
+  onDescription(next: string): void
+}): ReactNode {
+  return (
+    <div className={css.taskForm} data-popover-no-drag>
+      <label className={css.taskField}>
+        <span className={css.taskLabel}>{t('teamTaskSubject')}</span>
+        <Input
+          value={props.subject}
+          placeholder={t('teamTaskSubjectPlaceholder')}
+          aria-label={t('teamTaskSubject')}
+          onChange={(event) => { props.onSubject(event.target.value) }}
+        />
+      </label>
+      <label className={css.taskField}>
+        <span className={css.taskLabel}>{t('teamTaskDescription')}</span>
+        <MultilineField
+          value={props.description}
+          label={t('teamTaskDescription')}
+          placeholder={t('teamTaskDescriptionPlaceholder')}
+          onChange={props.onDescription}
+        />
+      </label>
+    </div>
+  )
+}
+
+export interface TaskWindowProps {
+  rootId: string
+  /** The task under view/edit; undefined = create mode. */
+  task: SidebarTeamTaskView | undefined
+  members: readonly SidebarTeamMemberView[]
+  /** Re-pull `teams.view` after a mutation (the parent owns the poller). */
+  onChanged(): void
+  /** Close the window (the caller's popover state). */
+  onClose(): void
+}
+
+/** The task window content (the caller supplies the popover shell). */
+export function TaskWindow(props: TaskWindowProps): ReactNode {
+  const { rootId, task, members, onChanged, onClose } = props
+  const creating = task === undefined
+  const [editing, setEditing] = useState(creating)
+  const [subject, setSubject] = useState(task?.subject ?? '')
+  const [description, setDescription] = useState(task?.description ?? '')
+  const [busy, setBusy] = useState(false)
+  const [note, setNote] = useState<string | undefined>(undefined)
+  const [armedDelete, setArmedDelete] = useState(false)
+
+  // Re-seed the draft when the caller swaps the subject task: the poller
+  // hands us fresh revisions, and unsaved text must not leak across tasks.
+  // Keyed by id on purpose — a same-id revision bump must NOT clobber the
+  // reader's in-flight edit (the seed rides a render-time ref so the effect
+  // depends on the id alone).
+  const seedRef = useRef({
+    subject: task?.subject ?? '',
+    description: task?.description ?? '',
+    creating: task === undefined,
+  })
+  seedRef.current = {
+    subject: task?.subject ?? '',
+    description: task?.description ?? '',
+    creating: task === undefined,
+  }
+  useEffect(() => {
+    const seed = seedRef.current
+    setSubject(seed.subject)
+    setDescription(seed.description)
+    setEditing(seed.creating)
+  }, [task?.id])
+
+  const teammates = members.filter(member => member.role === 'teammate')
+
+  /** Run one CAS mutation with the shared busy/conflict handling. */
+  const mutate = async (
+    action: () => Promise<MutationResult>,
+    options: { close?: boolean } = {},
+  ): Promise<void> => {
+    if (busy) return
+    setBusy(true)
+    setNote(undefined)
+    try {
+      const result = await action()
+      if (!result.ok) {
+        setNote(result.error.code === 'team-task-conflict'
+          ? t('teamTaskConflict')
+          : t('teamTaskError', { message: result.error.message }))
+      } else {
+        if (options.close === true) onClose()
+        else setEditing(false)
+      }
+      onChanged()
+    } catch (error) {
+      setNote(t('teamTaskError', { message: error instanceof Error ? error.message : String(error) }))
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  /** Save the draft (create closes the window; edit returns to the view). */
+  const save = (): void => {
+    const nextSubject = subject.trim()
+    if (nextSubject === '') return
+    void mutate(() => (creating
+      ? api.teamsTaskCreate(rootId, { subject: nextSubject, description: description.trim() })
+      : api.teamsTaskUpdate(rootId, {
+        taskId: task.id,
+        expectedRevision: task.revision,
+        action: 'edit',
+        subject: nextSubject,
+        description: description.trim(),
+      })), { close: creating })
+  }
+
+  /** Reassign the task (or return it to the unowned pool). */
+  const reassign = (owner: string): void => {
+    if (task === undefined || busy) return
+    void mutate(() => api.teamsTaskUpdate(rootId, {
+      taskId: task.id,
+      expectedRevision: task.revision,
+      action: 'reassign',
+      ...(owner === '' ? {} : { owner }),
+    }))
+  }
+
+  return (
+    <div className={css.popCard} data-popover-handle>
+      <div className={css.popHead}>
+        <span>{creating ? t('teamTaskCreate') : editing ? t('teamTaskEdit') : t('teamTaskDetail')}</span>
+        <span className={css.popHeadActions} data-popover-no-drag>
+          <Button
+            variant="ghost"
+            size="sm"
+            icon={<IconCloseOutline16 size={12} />}
+            aria-label={t('teamTaskCancel')}
+            title={t('teamTaskCancel')}
+            onClick={onClose}
+          />
+        </span>
+      </div>
+
+      {editing || task === undefined
+        ? (
+          <TaskEditBody
+            subject={subject}
+            description={description}
+            onSubject={setSubject}
+            onDescription={setDescription}
+          />
+        )
+        : (
+          <TaskViewBody
+            task={task}
+            teammates={teammates}
+            busy={busy}
+            onReassign={reassign}
+          />
+        )}
+
+      {note !== undefined && <div className={css.teamNote}>{note}</div>}
+
+      <div className={css.jobPopActions} data-popover-no-drag>
+        {editing
+          ? (
+            <>
+              <Button
+                variant="primary"
+                size="sm"
+                icon={<IconCheckOutline14 size={12} />}
+                disabled={busy || subject.trim() === ''}
+                onClick={save}
+              >
+                {creating ? t('teamTaskCreate') : t('teamTaskSave')}
+              </Button>
+              <Button
+                variant="outline"
+                size="sm"
+                disabled={busy}
+                onClick={() => {
+                  if (creating) onClose()
+                  else if (task !== undefined) {
+                    setSubject(task.subject)
+                    setDescription(task.description)
+                    setEditing(false)
+                  }
+                }}
+              >
+                {t('teamTaskCancel')}
+              </Button>
+            </>
+          )
+          : task === undefined ? null : (
+            <>
+              <Button
+                variant="outline"
+                size="sm"
+                icon={<IconEditOutline16 size={12} />}
+                onClick={() => { setEditing(true) }}
+              >
+                {t('teamTaskEdit')}
+              </Button>
+              {task.status === 'completed'
+                ? (
+                  <Button
+                    variant="outline"
+                    size="sm"
+                    icon={<IconRefreshOutline14 size={12} />}
+                    disabled={busy}
+                    onClick={() => void mutate(() => api.teamsTaskUpdate(rootId, {
+                      taskId: task.id, expectedRevision: task.revision, action: 'reopen',
+                    }))}
+                  >
+                    {t('teamTaskReopen')}
+                  </Button>
+                )
+                : (
+                  <Button
+                    variant="outline"
+                    size="sm"
+                    icon={<IconCheckOutline14 size={12} />}
+                    disabled={busy}
+                    onClick={() => void mutate(() => api.teamsTaskUpdate(rootId, {
+                      taskId: task.id, expectedRevision: task.revision, action: 'complete',
+                    }))}
+                  >
+                    {t('teamTaskComplete')}
+                  </Button>
+                )}
+              <Button
+                variant="outline"
+                size="sm"
+                className={armedDelete ? css.jobPopKillArmed : undefined}
+                icon={<IconTrashOutline16 size={12} />}
+                disabled={busy}
+                onClick={() => {
+                  if (!armedDelete) { setArmedDelete(true); return }
+                  setArmedDelete(false)
+                  void mutate(() => api.teamsTaskUpdate(rootId, {
+                    taskId: task.id, expectedRevision: task.revision, action: 'delete',
+                  }), { close: true })
+                }}
+              >
+                {armedDelete ? t('teamTaskDeleteConfirm') : t('teamTaskDelete')}
+              </Button>
+            </>
+          )}
+      </div>
+    </div>
+  )
+}
+
+/**
+ * The task window inside its draggable popover shell — the single entry point
+ * every task surface uses (board row, node task line, node detail list).
+ */
+export function TaskPopover(props: TaskWindowProps & { anchor: HTMLElement | null }): ReactNode {
+  const { anchor, onClose, ...windowProps } = props
+  return (
+    <AnchoredPopover anchor={anchor} onClose={onClose} draggable width={430}>
+      {anchor === null ? null : <TaskWindow {...windowProps} onClose={onClose} />}
+    </AnchoredPopover>
+  )
+}
+
+/** The create affordance every surface shares. */
+export function TaskCreateButton(props: {
+  disabled?: boolean
+  onClick(anchor: HTMLElement): void
+}): ReactNode {
+  return (
+    <Button
+      variant="outline"
+      size="sm"
+      icon={<IconPlusOutline16 size={13} />}
+      disabled={props.disabled}
+      onClick={(event) => { props.onClick(event.currentTarget) }}
+    >
+      {t('teamTaskCreate')}
+    </Button>
+  )
+}
diff --git a/src/client/TasksGraph.tsx b/src/client/TasksGraph.tsx
index 2148d40..ba08721 100644
--- a/src/client/TasksGraph.tsx
+++ b/src/client/TasksGraph.tsx
@@ -24,8 +24,7 @@ import {
 } from 'react'
 import clsx from 'clsx'
 import {
-  Button, IconChecklistOutline14, IconEllipsisOutline16, IconFullscreenOutline16, IconTreeCorner8x10,
-  StateDot,
+  Button, IconChecklistOutline14, IconFullscreenOutline16, IconTreeCorner8x10, StateDot,
 } from '@deepseek-ai/dsh-client-ui-primitives'
 import type { TasksAgentNode, TasksFoldNode, TasksNode, TasksWorkflowNode } from './tasks-model.ts'
 import { tasksEdges } from './tasks-model.ts'
@@ -63,9 +62,10 @@ export interface TasksGraphProps {
   folded: boolean
   /** Re-fit trigger: the topology root id (a reroot re-centers). */
   rootId: string | undefined
-  onActivate(node: TasksAgentNode): void
   onNodeInfo(node: TasksAgentNode, anchor: HTMLElement): void
   onWorkflowInfo(node: TasksWorkflowNode, anchor: HTMLElement): void
+  /** Open the shared task window for one task id. */
+  onOpenTask(taskId: string, anchor: HTMLElement): void
   onToggleFold(): void
   mode: 'graph' | 'tree'
   onModeChange(mode: 'graph' | 'tree'): void
@@ -112,7 +112,7 @@ export function FoldToggleButton(props: { folded: boolean; onToggleFold(): void
 }
 
 export function TasksGraph(props: TasksGraphProps): ReactNode {
-  const { nodes, folded, rootId, onActivate, onNodeInfo, onWorkflowInfo, onToggleFold, mode, onModeChange } = props
+  const { nodes, folded, rootId, onNodeInfo, onWorkflowInfo, onOpenTask, onToggleFold, mode, onModeChange } = props
   const containerRef = useRef<HTMLDivElement>(null)
   const [tf, setTf] = useState({ x: 0, y: 0, k: 1 })
   const [dragging, setDragging] = useState(false)
@@ -335,7 +335,7 @@ export function TasksGraph(props: TasksGraphProps): ReactNode {
             if (node.kind === 'workflow') {
               return renderWorkflowNode(node, style, onWorkflowInfo, clickAllowed)
             }
-            return renderAgentNode(node, style, onActivate, onNodeInfo, clickAllowed)
+            return renderAgentNode(node, style, onNodeInfo, onOpenTask, clickAllowed)
           })}
         </div>
         <div className={css.controls} data-graph-controls>
@@ -381,8 +381,8 @@ export function TasksGraph(props: TasksGraphProps): ReactNode {
 function renderAgentNode(
   node: TasksAgentNode,
   style: { left: number; top: number; width: number; minHeight: number },
-  onActivate: (node: TasksAgentNode) => void,
   onNodeInfo: (node: TasksAgentNode, anchor: HTMLElement) => void,
+  onOpenTask: (taskId: string, anchor: HTMLElement) => void,
   clickAllowed: () => boolean,
 ): ReactNode {
   return (
@@ -402,9 +402,9 @@ function renderAgentNode(
         node.state === 'error' && css.nodeError,
       )}
       style={style}
-      onClick={() => {
+      onClick={(event) => {
         if (!clickAllowed()) return
-        onActivate(node)
+        onNodeInfo(node, event.currentTarget)
       }}
     >
       <span className={css.nodeHeader}>
@@ -414,19 +414,7 @@ function renderAgentNode(
       </span>
       <span className={css.nodeMeta} title={agentMeta(node)}>{agentMeta(node)}</span>
       {node.state === 'running' && <LiveLine live={node.live} />}
-      <TaskLine tasks={node.tasks} />
-      <Button
-        variant="ghost"
-        size="sm"
-        className={css.nodeInfo}
-        icon={<IconEllipsisOutline16 size={12} />}
-        aria-label={t('tasksNodeDetail')}
-        title={t('tasksNodeDetail')}
-        onClick={(event) => {
-          event.stopPropagation()
-          onNodeInfo(node, event.currentTarget)
-        }}
-      />
+      <TaskLine tasks={node.tasks} onOpenTask={onOpenTask} />
     </div>
   )
 }
diff --git a/src/client/TasksPopovers.tsx b/src/client/TasksPopovers.tsx
index f342077..1489bbf 100644
--- a/src/client/TasksPopovers.tsx
+++ b/src/client/TasksPopovers.tsx
@@ -46,8 +46,10 @@ function PopRow(props: { label: string; mono?: boolean; children: ReactNode }):
 export function AgentNodePopover(props: {
   node: TasksAgentNode
   onJump(node: TasksAgentNode): void
+  /** Open the shared task window for one of the node's tasks. */
+  onOpenTask(taskId: string, anchor: HTMLElement): void
 }): ReactNode {
-  const { node, onJump } = props
+  const { node, onJump, onOpenTask } = props
   const liveText = node.live?.text !== undefined ? flatten(node.live.text) : undefined
   const liveTool = node.live?.tool !== undefined
     ? `${node.live.tool.name}${node.live.tool.args === '' ? '' : ` ${node.live.tool.args}`}`
@@ -87,13 +89,19 @@ export function AgentNodePopover(props: {
           <div className={css.popGroup}>{t('tasksNodeTasks')}</div>
           <div className={css.popList}>
             {(node.tasks ?? []).map(task => (
-              <div key={task.id} className={css.popListRow} title={task.subject}>
+              <button
+                key={task.id}
+                type="button"
+                className={css.popListRow}
+                title={task.subject}
+                onClick={(event) => { onOpenTask(task.id, event.currentTarget) }}
+              >
                 <StateDot state={taskDotState(task)} size={6} />
                 <span className={css.popListLabel}>{task.subject}</span>
                 <Tag tone={task.status === 'completed' ? 'success' : task.ready ? 'info' : 'warning'}>
                   {t(taskStatusKey(task.status))}
                 </Tag>
-              </div>
+              </button>
             ))}
           </div>
         </div>
diff --git a/src/client/TasksTree.tsx b/src/client/TasksTree.tsx
index c49c1ae..b3279d9 100644
--- a/src/client/TasksTree.tsx
+++ b/src/client/TasksTree.tsx
@@ -7,7 +7,7 @@
  */
 import { useCallback, useMemo, useRef, type KeyboardEvent, type ReactNode } from 'react'
 import clsx from 'clsx'
-import { Button, IconChevronUpOutline14, IconEllipsisOutline16, StateDot } from '@deepseek-ai/dsh-client-ui-primitives'
+import { IconChevronUpOutline14, StateDot } from '@deepseek-ai/dsh-client-ui-primitives'
 import type { TasksAgentNode, TasksNode, TasksWorkflowNode } from './tasks-model.ts'
 import {
   AgentGlyph, agentMeta, FoldGlyph, foldPreviews, LiveLine, nodeDotState, TaskLine,
@@ -20,9 +20,10 @@ import css from './tasks-graph.module.css'
 export interface TasksTreeProps {
   nodes: readonly TasksNode[]
   folded: boolean
-  onActivate(node: TasksAgentNode): void
   onNodeInfo(node: TasksAgentNode, anchor: HTMLElement): void
   onWorkflowInfo(node: TasksWorkflowNode, anchor: HTMLElement): void
+  /** Open the shared task window for one task id. */
+  onOpenTask(taskId: string, anchor: HTMLElement): void
   onToggleFold(): void
   mode: 'graph' | 'tree'
   onModeChange(mode: 'graph' | 'tree'): void
@@ -32,7 +33,7 @@ export interface TasksTreeProps {
 
 export function TasksTree(props: TasksTreeProps): ReactNode {
   const {
-    nodes, folded, onActivate, onNodeInfo, onWorkflowInfo, onToggleFold, mode, onModeChange, loading,
+    nodes, folded, onNodeInfo, onWorkflowInfo, onOpenTask, onToggleFold, mode, onModeChange, loading,
   } = props
   const bodyRef = useRef<HTMLDivElement>(null)
 
@@ -147,8 +148,10 @@ export function TasksTree(props: TasksTreeProps): ReactNode {
               node.current && css.treeRowActive,
               (node.state === 'done' || node.state === 'error') && !node.current && css.treeRowSettled,
             )}
-            onClick={() => { onActivate(node) }}
-            onKeyDown={(event) => { activateOnKey(event, () => { onActivate(node) }) }}
+            onClick={(event) => { onNodeInfo(node, event.currentTarget) }}
+            onKeyDown={(event) => {
+              activateOnKey(event, () => { onNodeInfo(node, event.currentTarget as HTMLElement) })
+            }}
           >
             <StateDot state={nodeDotState(node.state)} size={6} />
             <span className={css.treeGlyph} aria-hidden="true"><AgentGlyph node={node} /></span>
@@ -156,20 +159,8 @@ export function TasksTree(props: TasksTreeProps): ReactNode {
               <span className={css.treeTitle}>{node.label}</span>
               <span className={css.treeMeta}>{agentMeta(node)}</span>
               {node.state === 'running' && <LiveLine live={node.live} />}
-              <TaskLine tasks={node.tasks} />
+              <TaskLine tasks={node.tasks} onOpenTask={onOpenTask} />
             </span>
-            <Button
-              variant="ghost"
-              size="sm"
-              className={css.treeInfo}
-              icon={<IconEllipsisOutline16 size={12} />}
-              aria-label={t('tasksNodeDetail')}
-              title={t('tasksNodeDetail')}
-              onClick={(event) => {
-                event.stopPropagation()
-                onNodeInfo(node, event.currentTarget)
-              }}
-            />
           </div>
         )
     if (children.length === 0) return <div key={node.id}>{row}</div>
diff --git a/src/client/TeamBoard.tsx b/src/client/TeamBoard.tsx
index d8517ef..557f674 100644
--- a/src/client/TeamBoard.tsx
+++ b/src/client/TeamBoard.tsx
@@ -14,13 +14,10 @@
  */
 import { useMemo, useState, type ReactNode } from 'react'
 import {
-  Button, IconChecklistOutline14, IconCheckOutline14, IconChevronUpOutline14, IconEditOutline16,
-  IconEllipsisOutline16, IconPlusOutline16, IconRefreshOutline14, IconTrashOutline16,
-  IconUserOutline16, Input, Menu, Modal, Pill, StateDot, Tag,
-  type MenuEntry, type TagTone,
+  Button, IconChecklistOutline14, IconChevronUpOutline14, IconPlusOutline16, Pill, StateDot, Tag,
+  type TagTone,
 } from '@deepseek-ai/dsh-client-ui-primitives'
 import type { SidebarTeamMemberView, SidebarTeamTaskView } from '../context-types.ts'
-import { api } from './api.ts'
 import { t, type CopyKey } from './locales.ts'
 import css from './tasks-graph.module.css'
 
@@ -41,177 +38,27 @@ function taskTone(task: SidebarTeamTaskView): TagTone {
   return task.status === 'in_progress' ? 'info' : 'neutral'
 }
 
-/** One mutation outcome (the host route's own union). */
-type MutationResult = { ok: true } | { ok: false; error: { code: string; message: string } }
-
-/** The task being created or edited (undefined = dialog closed). */
-interface TaskDraft {
-  /** The task under edit; undefined = a new task. */
-  task: SidebarTeamTaskView | undefined
-  subject: string
-  description: string
-  owner: string
-}
-
 export interface TeamBoardProps {
   rootId: string
   members: readonly SidebarTeamMemberView[]
   tasks: readonly SidebarTeamTaskView[]
-  /** Re-pull `teams.view` now (after every mutation / conflict). */
-  onChanged(): void
+  /** Open the shared task window (undefined = create) anchored at the click. */
+  onOpenTask(task: SidebarTeamTaskView | undefined, anchor: HTMLElement): void
   /** The strip's own collapse state (the reader's choice, remembered while mounted). */
   collapsed: boolean
   onToggleCollapsed(): void
 }
 
 export function TeamBoard(props: TeamBoardProps): ReactNode {
-  const { rootId, members, tasks, onChanged, collapsed, onToggleCollapsed } = props
-  const [busy, setBusy] = useState(false)
-  const [note, setNote] = useState<string | undefined>(undefined)
-  const [draft, setDraft] = useState<TaskDraft | undefined>(undefined)
-  const [menuTaskId, setMenuTaskId] = useState<string | undefined>(undefined)
-  const [armedDeleteId, setArmedDeleteId] = useState<string | undefined>(undefined)
+  const { members, tasks, onOpenTask, collapsed, onToggleCollapsed } = props
   const [ownerFilter, setOwnerFilter] = useState<string | undefined>(undefined)
 
-  const teammates = useMemo(() => members.filter(member => member.role === 'teammate'), [members])
   const live = useMemo(() => tasks.filter(task => task.status !== 'deleted'), [tasks])
   const shown = useMemo(
     () => live.filter(task => ownerFilter === undefined || task.ownerName === ownerFilter),
     [live, ownerFilter],
   )
 
-  /** Run one mutation with the shared busy/conflict handling. */
-  const mutate = async (action: () => Promise<MutationResult>): Promise<void> => {
-    if (busy) return
-    setBusy(true)
-    setNote(undefined)
-    try {
-      const result = await action()
-      if (!result.ok) {
-        setNote(result.error.code === 'team-task-conflict'
-          ? t('teamTaskConflict')
-          : t('teamTaskError', { message: result.error.message }))
-      }
-      onChanged()
-    } catch (error) {
-      setNote(t('teamTaskError', { message: error instanceof Error ? error.message : String(error) }))
-    } finally {
-      setBusy(false)
-    }
-  }
-
-  /** The overflow menu of one task (actions per status). */
-  const menuItems = (task: SidebarTeamTaskView): MenuEntry[] => {
-    const entries: MenuEntry[] = []
-    if (task.status === 'completed') {
-      entries.push({ id: 'reopen', label: t('teamTaskReopen'), icon: <IconRefreshOutline14 size={14} /> })
-    } else {
-      entries.push({ id: 'complete', label: t('teamTaskComplete'), icon: <IconCheckOutline14 size={14} /> })
-    }
-    entries.push({ id: 'edit', label: t('teamTaskEdit'), icon: <IconEditOutline16 size={14} /> })
-    if (teammates.length > 0) {
-      entries.push({
-        id: 'reassign',
-        label: t('teamTaskOwner'),
-        icon: <IconUserOutline16 size={14} />,
-        submenu: [
-          { id: 'reassign:', label: t('teamTaskUnowned') },
-          ...teammates.map(member => ({
-            id: `reassign:${member.name}`,
-            label: member.name,
-            ...(task.ownerName === member.name ? { disabled: true } : {}),
-          })),
-        ],
-      })
-    }
-    entries.push({ type: 'separator', id: 'team-task-sep' })
-    entries.push({
-      id: 'delete',
-      label: armedDeleteId === task.id ? t('teamTaskDeleteConfirm') : t('teamTaskDelete'),
-      icon: <IconTrashOutline16 size={14} />,
-      danger: true,
-    })
-    return entries
-  }
-
-  /** Dispatch one overflow-menu pick. */
-  const onMenuSelect = (task: SidebarTeamTaskView, id: string): void => {
-    if (id === 'complete') {
-      setMenuTaskId(undefined)
-      void mutate(() => api.teamsTaskUpdate(rootId, {
-        taskId: task.id, expectedRevision: task.revision, action: 'complete',
-      }))
-      return
-    }
-    if (id === 'reopen') {
-      setMenuTaskId(undefined)
-      void mutate(() => api.teamsTaskUpdate(rootId, {
-        taskId: task.id, expectedRevision: task.revision, action: 'reopen',
-      }))
-      return
-    }
-    if (id === 'edit') {
-      setMenuTaskId(undefined)
-      setDraft({ task, subject: task.subject, description: task.description, owner: task.ownerName ?? '' })
-      return
-    }
-    if (id === 'delete') {
-      // Two-step: the first pick arms the label, the second deletes.
-      if (armedDeleteId !== task.id) {
-        setArmedDeleteId(task.id)
-        return
-      }
-      setArmedDeleteId(undefined)
-      setMenuTaskId(undefined)
-      void mutate(() => api.teamsTaskUpdate(rootId, {
-        taskId: task.id, expectedRevision: task.revision, action: 'delete',
-      }))
-      return
-    }
-    if (id.startsWith('reassign:')) {
-      const owner = id.slice('reassign:'.length)
-      setMenuTaskId(undefined)
-      setArmedDeleteId(undefined)
-      void mutate(() => api.teamsTaskUpdate(rootId, {
-        taskId: task.id,
-        expectedRevision: task.revision,
-        action: 'reassign',
-        ...(owner === '' ? {} : { owner }),
-      }))
-    }
-  }
-
-  /** Commit the create/edit dialog (subject/description, then the owner). */
-  const saveDraft = async (): Promise<void> => {
-    const current = draft
-    if (current === undefined) return
-    const subject = current.subject.trim()
-    if (subject === '') return
-    await mutate(async () => {
-      const result = current.task === undefined
-        ? await api.teamsTaskCreate(rootId, { subject, description: current.description.trim() })
-        : await api.teamsTaskUpdate(rootId, {
-          taskId: current.task.id,
-          expectedRevision: current.task.revision,
-          action: 'edit',
-          subject,
-          description: current.description.trim(),
-        })
-      if (!result.ok) return result
-      if (current.task !== undefined && current.owner !== (current.task.ownerName ?? '')) {
-        const moved = await api.teamsTaskUpdate(rootId, {
-          taskId: current.task.id,
-          expectedRevision: result.value.revision,
-          action: 'reassign',
-          ...(current.owner === '' ? {} : { owner: current.owner }),
-        })
-        if (!moved.ok) return moved
-      }
-      setDraft(undefined)
-      return result
-    })
-  }
-
   return (
     <section className={css.teamBoard} aria-label={t('teamBoard')}>
       <button
@@ -266,136 +113,41 @@ export function TeamBoard(props: TeamBoardProps): ReactNode {
           <div className={css.teamTasks}>
             {shown.length === 0 && <div className={css.teamEmpty}>{t('teamTasksEmpty')}</div>}
             {shown.map(task => (
-              <div key={task.id} className={css.teamTask}>
+              <Button
+                key={task.id}
+                variant="ghost"
+                size="sm"
+                className={css.teamTask}
+                aria-label={`${t('teamTaskDetail')} ${task.subject}`}
+                title={t('teamTaskDetail')}
+                onClick={(event) => { onOpenTask(task, event.currentTarget) }}
+              >
                 <StateDot
                   size={6}
                   state={task.status === 'completed' ? 'done' : task.ready ? 'ongoing' : 'warning'}
                 />
-                <span
-                  className={css.teamTaskSubject}
-                  title={`${task.subject}${task.description === '' ? '' : `\n${task.description}`}`}
-                >
-                  {task.subject}
-                </span>
+                <span className={css.teamTaskSubject}>{task.subject}</span>
                 {task.ownerName !== undefined && (
                   <span className={css.teamTaskOwner}>{task.ownerName}</span>
                 )}
                 <Tag tone={taskTone(task)}>
                   {t(task.ready ? taskStatusKey(task.status) : 'teamTaskBlocked')}
                 </Tag>
-                <Menu
-                  open={menuTaskId === task.id}
-                  onClose={() => {
-                    setMenuTaskId(undefined)
-                    setArmedDeleteId(undefined)
-                  }}
-                  items={menuItems(task)}
-                  onSelect={(id) => { onMenuSelect(task, id) }}
-                  align="end"
-                  portal
-                  compact
-                  anchor={(
-                    <Button
-                      variant="ghost"
-                      size="sm"
-                      icon={<IconEllipsisOutline16 size={13} />}
-                      aria-label={`${t('teamTaskActions')} ${task.subject}`}
-                      title={t('teamTaskActions')}
-                      onClick={() => {
-                        setArmedDeleteId(undefined)
-                        setMenuTaskId(current => (current === task.id ? undefined : task.id))
-                      }}
-                    />
-                  )}
-                />
-              </div>
+              </Button>
             ))}
           </div>
-          {note !== undefined && <div className={css.teamNote}>{note}</div>}
           <div className={css.teamActions}>
             <Button
               variant="outline"
               size="sm"
               icon={<IconPlusOutline16 size={13} />}
-              disabled={busy}
-              onClick={() => { setDraft({ task: undefined, subject: '', description: '', owner: '' }) }}
+              onClick={(event) => { onOpenTask(undefined, event.currentTarget) }}
             >
               {t('teamTaskCreate')}
             </Button>
           </div>
         </>
       )}
-      <Modal
-        open={draft !== undefined}
-        onClose={() => { setDraft(undefined) }}
-        title={draft?.task === undefined ? t('teamTaskCreate') : t('teamTaskEdit')}
-        closeLabel={t('teamTaskCancel')}
-        footer={(
-          <>
-            <Button variant="outline" onClick={() => { setDraft(undefined) }}>
-              {t('teamTaskCancel')}
-            </Button>
-            <Button
-              variant="primary"
-              disabled={busy || (draft?.subject.trim() ?? '') === ''}
-              onClick={() => { void saveDraft() }}
-            >
-              {draft?.task === undefined ? t('teamTaskCreate') : t('teamTaskSave')}
-            </Button>
-          </>
-        )}
-      >
-        <div className={css.taskForm}>
-          <label className={css.taskField}>
-            <span className={css.taskLabel}>{t('teamTaskSubject')}</span>
-            <Input
-              value={draft?.subject ?? ''}
-              placeholder={t('teamTaskSubjectPlaceholder')}
-              aria-label={t('teamTaskSubject')}
-              onChange={(event) => {
-                const value = event.target.value
-                setDraft(current => (current === undefined ? current : { ...current, subject: value }))
-              }}
-            />
-          </label>
-          <label className={css.taskField}>
-            <span className={css.taskLabel}>{t('teamTaskDescription')}</span>
-            <Input
-              value={draft?.description ?? ''}
-              placeholder={t('teamTaskDescriptionPlaceholder')}
-              aria-label={t('teamTaskDescription')}
-              onChange={(event) => {
-                const value = event.target.value
-                setDraft(current => (current === undefined ? current : { ...current, description: value }))
-              }}
-            />
-          </label>
-          <div className={css.taskField}>
-            <span className={css.taskLabel}>{t('teamTaskOwner')}</span>
-            <div className={css.taskOwnerRow}>
-              <Pill
-                active={(draft?.owner ?? '') === ''}
-                onClick={() => {
-                  setDraft(current => (current === undefined ? current : { ...current, owner: '' }))
-                }}
-              >
-                {t('teamTaskUnowned')}
-              </Pill>
-              {teammates.map(member => (
-                <Pill
-                  key={member.id}
-                  active={draft?.owner === member.name}
-                  onClick={() => {
-                    setDraft(current => (current === undefined ? current : { ...current, owner: member.name }))
-                  }}
-                >
-                  {member.name}
-                </Pill>
-              ))}
-            </div>
-          </div>
-        </div>
-      </Modal>
     </section>
   )
 }
diff --git a/src/client/locales-ar.ts b/src/client/locales-ar.ts
index 8833520..8a720eb 100644
--- a/src/client/locales-ar.ts
+++ b/src/client/locales-ar.ts
@@ -444,6 +444,9 @@ export const ar: Record<string, string> = {
   teamTaskError: 'فشلت العملية: {message}',
   teamTaskDeleted: 'محذوفة',
   teamTaskActions: 'إجراءات المهمة',
+  teamTaskDetail: 'تفاصيل المهمة',
+  teamTaskNoDescription: 'لا يوجد وصف بعد — انقر على «تحرير» لإضافة واحد',
+  teamTaskBlockedBy: 'محجوبة بسبب',
   teamTaskSubjectPlaceholder: 'سطر واحد يصف العمل',
   teamTaskDescriptionPlaceholder: 'تفاصيل إضافية (اختياري)',
   teamFilterAll: 'الكل',
diff --git a/src/client/locales-de.ts b/src/client/locales-de.ts
index 3463e14..2d23afe 100644
--- a/src/client/locales-de.ts
+++ b/src/client/locales-de.ts
@@ -429,6 +429,9 @@ export const de: Record<string, string> = {
   teamTaskError: 'Vorgang fehlgeschlagen: {message}',
   teamTaskDeleted: 'Gelöscht',
   teamTaskActions: 'Aufgabenaktionen',
+  teamTaskDetail: 'Aufgabendetails',
+  teamTaskNoDescription: 'Noch keine Beschreibung – über „Bearbeiten“ ergänzen',
+  teamTaskBlockedBy: 'Blockiert durch',
   teamTaskSubjectPlaceholder: 'Eine Zeile, die die Arbeit beschreibt',
   teamTaskDescriptionPlaceholder: 'Zusätzliche Details (optional)',
   teamFilterAll: 'Alle',
diff --git a/src/client/locales-fr.ts b/src/client/locales-fr.ts
index aa4002d..7f88f29 100644
--- a/src/client/locales-fr.ts
+++ b/src/client/locales-fr.ts
@@ -436,6 +436,9 @@ export const fr: Record<string, string> = {
   teamTaskError: 'Échec de l’opération : {message}',
   teamTaskDeleted: 'Supprimée',
   teamTaskActions: 'Actions sur la tâche',
+  teamTaskDetail: 'Détails de la tâche',
+  teamTaskNoDescription: 'Aucune description pour le moment — cliquez sur « Modifier » pour en ajouter une',
+  teamTaskBlockedBy: 'Bloquée par',
   teamTaskSubjectPlaceholder: 'Décrire le travail en une ligne',
   teamTaskDescriptionPlaceholder: 'Précisions (facultatif)',
   teamFilterAll: 'Tout',
diff --git a/src/client/locales-hi.ts b/src/client/locales-hi.ts
index 33aa194..9305a08 100644
--- a/src/client/locales-hi.ts
+++ b/src/client/locales-hi.ts
@@ -443,6 +443,9 @@ export const hi: Record<string, string> = {
   teamTaskError: 'ऑपरेशन विफल: {message}',
   teamTaskDeleted: 'हटाया गया',
   teamTaskActions: 'कार्य क्रियाएँ',
+  teamTaskDetail: 'कार्य विवरण',
+  teamTaskNoDescription: 'अभी कोई विवरण नहीं — जोड़ने के लिए “संपादित करें” पर क्लिक करें',
+  teamTaskBlockedBy: 'इनसे अवरुद्ध',
   teamTaskSubjectPlaceholder: 'काम को एक पंक्ति में बताएँ',
   teamTaskDescriptionPlaceholder: 'अतिरिक्त जानकारी (वैकल्पिक)',
   teamFilterAll: 'सभी',
diff --git a/src/client/locales-id.ts b/src/client/locales-id.ts
index 3da931e..a94f160 100644
--- a/src/client/locales-id.ts
+++ b/src/client/locales-id.ts
@@ -441,6 +441,9 @@ export const id: Record<string, string> = {
   teamTaskError: 'Operasi gagal: {message}',
   teamTaskDeleted: 'Terhapus',
   teamTaskActions: 'Aksi tugas',
+  teamTaskDetail: 'Detail tugas',
+  teamTaskNoDescription: 'Belum ada deskripsi — klik “Edit” untuk menambahkan',
+  teamTaskBlockedBy: 'Diblokir oleh',
   teamTaskSubjectPlaceholder: 'Jelaskan pekerjaan dalam satu baris',
   teamTaskDescriptionPlaceholder: 'Keterangan tambahan (opsional)',
   teamFilterAll: 'Semua',
diff --git a/src/client/locales-it.ts b/src/client/locales-it.ts
index 396cf45..e406de3 100644
--- a/src/client/locales-it.ts
+++ b/src/client/locales-it.ts
@@ -434,6 +434,9 @@ export const it: Record<string, string> = {
   teamTaskError: 'Operazione non riuscita: {message}',
   teamTaskDeleted: 'Eliminata',
   teamTaskActions: 'Azioni attività',
+  teamTaskDetail: 'Dettagli attività',
+  teamTaskNoDescription: 'Nessuna descrizione — fai clic su «Modifica» per aggiungerne una',
+  teamTaskBlockedBy: 'Bloccata da',
   teamTaskSubjectPlaceholder: 'Descrivi il lavoro in una riga',
   teamTaskDescriptionPlaceholder: 'Dettagli aggiuntivi (opzionale)',
   teamFilterAll: 'Tutti',
diff --git a/src/client/locales-ja.ts b/src/client/locales-ja.ts
index b8be79b..8892b2c 100644
--- a/src/client/locales-ja.ts
+++ b/src/client/locales-ja.ts
@@ -443,6 +443,9 @@ export const ja: Record<string, string> = {
   teamTaskError: '操作に失敗: {message}',
   teamTaskDeleted: '削除済み',
   teamTaskActions: 'タスク操作',
+  teamTaskDetail: 'タスク詳細',
+  teamTaskNoDescription: '説明はまだありません（「編集」で追加）',
+  teamTaskBlockedBy: 'ブロック元',
   teamTaskSubjectPlaceholder: 'やることを一行で',
   teamTaskDescriptionPlaceholder: '補足（任意）',
   teamFilterAll: 'すべて',
diff --git a/src/client/locales-ko.ts b/src/client/locales-ko.ts
index f2e211f..b02a367 100644
--- a/src/client/locales-ko.ts
+++ b/src/client/locales-ko.ts
@@ -435,6 +435,9 @@ export const ko: Record<string, string> = {
   teamTaskError: '작업 실패: {message}',
   teamTaskDeleted: '삭제됨',
   teamTaskActions: '작업 동작',
+  teamTaskDetail: '작업 상세',
+  teamTaskNoDescription: '설명이 아직 없음 — “편집”을 클릭해 추가',
+  teamTaskBlockedBy: '차단 원인',
   teamTaskSubjectPlaceholder: '할 일을 한 줄로 설명',
   teamTaskDescriptionPlaceholder: '추가 설명 (선택)',
   teamFilterAll: '모두',
diff --git a/src/client/locales-nl.ts b/src/client/locales-nl.ts
index 1485894..07dd104 100644
--- a/src/client/locales-nl.ts
+++ b/src/client/locales-nl.ts
@@ -441,6 +441,9 @@ export const nl: Record<string, string> = {
   teamTaskError: 'Bewerking mislukt: {message}',
   teamTaskDeleted: 'Verwijderd',
   teamTaskActions: 'Taakacties',
+  teamTaskDetail: 'Taakdetails',
+  teamTaskNoDescription: 'Nog geen beschrijving — klik op “Bewerken” om er een toe te voegen',
+  teamTaskBlockedBy: 'Geblokkeerd door',
   teamTaskSubjectPlaceholder: 'Beschrijf het werk in één regel',
   teamTaskDescriptionPlaceholder: 'Aanvullende details (optioneel)',
   teamFilterAll: 'Alles',
diff --git a/src/client/locales-pl.ts b/src/client/locales-pl.ts
index 05c0725..700ef24 100644
--- a/src/client/locales-pl.ts
+++ b/src/client/locales-pl.ts
@@ -445,6 +445,9 @@ export const pl: Record<string, string> = {
   teamTaskError: 'Operacja nie powiodła się: {message}',
   teamTaskDeleted: 'Usunięte',
   teamTaskActions: 'Akcje zadania',
+  teamTaskDetail: 'Szczegóły zadania',
+  teamTaskNoDescription: 'Brak opisu — kliknij „Edytuj”, aby dodać',
+  teamTaskBlockedBy: 'Zablokowane przez',
   teamTaskSubjectPlaceholder: 'Opisz pracę w jednym zdaniu',
   teamTaskDescriptionPlaceholder: 'Dodatkowe informacje (opcjonalnie)',
   teamFilterAll: 'Wszystko',
diff --git a/src/client/locales-pt.ts b/src/client/locales-pt.ts
index 79dd3ea..d027c35 100644
--- a/src/client/locales-pt.ts
+++ b/src/client/locales-pt.ts
@@ -426,6 +426,9 @@ export const pt: Record<string, string> = {
   teamTaskError: 'Operação falhou: {message}',
   teamTaskDeleted: 'Excluída',
   teamTaskActions: 'Ações da tarefa',
+  teamTaskDetail: 'Detalhes da tarefa',
+  teamTaskNoDescription: 'Ainda sem descrição — clique em “Editar” para adicionar',
+  teamTaskBlockedBy: 'Bloqueada por',
   teamTaskSubjectPlaceholder: 'Descreva o trabalho em uma linha',
   teamTaskDescriptionPlaceholder: 'Detalhes adicionais (opcional)',
   teamFilterAll: 'Tudo',
diff --git a/src/client/locales-ru.ts b/src/client/locales-ru.ts
index 9d1b29a..09f5b9a 100644
--- a/src/client/locales-ru.ts
+++ b/src/client/locales-ru.ts
@@ -441,6 +441,9 @@ export const ru: Record<string, string> = {
   teamTaskError: 'Не удалось выполнить: {message}',
   teamTaskDeleted: 'Удалена',
   teamTaskActions: 'Действия с задачей',
+  teamTaskDetail: 'Детали задачи',
+  teamTaskNoDescription: 'Описание пока отсутствует — нажмите «Изменить», чтобы добавить',
+  teamTaskBlockedBy: 'Заблокирована задачей',
   teamTaskSubjectPlaceholder: 'Опишите работу одной строкой',
   teamTaskDescriptionPlaceholder: 'Дополнительные сведения (необязательно)',
   teamFilterAll: 'Все',
diff --git a/src/client/locales-sv.ts b/src/client/locales-sv.ts
index c51801f..7e6eef0 100644
--- a/src/client/locales-sv.ts
+++ b/src/client/locales-sv.ts
@@ -426,6 +426,9 @@ export const sv: Record<string, string> = {
   teamTaskError: 'Åtgärden misslyckades: {message}',
   teamTaskDeleted: 'Borttagen',
   teamTaskActions: 'Uppgiftsåtgärder',
+  teamTaskDetail: 'Uppgiftsdetaljer',
+  teamTaskNoDescription: 'Ingen beskrivning än — klicka på “Redigera” för att lägga till en',
+  teamTaskBlockedBy: 'Blockerad av',
   teamTaskSubjectPlaceholder: 'Beskriv arbetet på en rad',
   teamTaskDescriptionPlaceholder: 'Ytterligare information (valfritt)',
   teamFilterAll: 'Alla',
diff --git a/src/client/locales-th.ts b/src/client/locales-th.ts
index 1de2e56..a47ac67 100644
--- a/src/client/locales-th.ts
+++ b/src/client/locales-th.ts
@@ -443,6 +443,9 @@ export const th: Record<string, string> = {
   teamTaskError: 'ดำเนินการไม่สำเร็จ: {message}',
   teamTaskDeleted: 'ลบแล้ว',
   teamTaskActions: 'การดำเนินการของงาน',
+  teamTaskDetail: 'รายละเอียดงาน',
+  teamTaskNoDescription: 'ยังไม่มีคำอธิบาย — คลิก “แก้ไข” เพื่อเพิ่ม',
+  teamTaskBlockedBy: 'ถูกบล็อกโดย',
   teamTaskSubjectPlaceholder: 'อธิบายงานที่ต้องทำในบรรทัดเดียว',
   teamTaskDescriptionPlaceholder: 'รายละเอียดเพิ่มเติม (ไม่บังคับ)',
   teamFilterAll: 'ทั้งหมด',
diff --git a/src/client/locales-tr.ts b/src/client/locales-tr.ts
index 21c16cc..53e8e5c 100644
--- a/src/client/locales-tr.ts
+++ b/src/client/locales-tr.ts
@@ -443,6 +443,9 @@ export const tr: Record<string, string> = {
   teamTaskError: 'İşlem başarısız: {message}',
   teamTaskDeleted: 'Silindi',
   teamTaskActions: 'Görev eylemleri',
+  teamTaskDetail: 'Görev ayrıntısı',
+  teamTaskNoDescription: 'Henüz açıklama yok — eklemek için Düzenle adımına tıklayın',
+  teamTaskBlockedBy: 'Engellendiği görevler',
   teamTaskSubjectPlaceholder: 'İşi tek satırda açıkla',
   teamTaskDescriptionPlaceholder: 'Ek ayrıntılar (isteğe bağlı)',
   teamFilterAll: 'Tümü',
diff --git a/src/client/locales-vi.ts b/src/client/locales-vi.ts
index 3a334c6..04c3df6 100644
--- a/src/client/locales-vi.ts
+++ b/src/client/locales-vi.ts
@@ -443,6 +443,9 @@ export const vi: Record<string, string> = {
   teamTaskError: 'Thao tác thất bại: {message}',
   teamTaskDeleted: 'Đã xóa',
   teamTaskActions: 'Thao tác với tác vụ',
+  teamTaskDetail: 'Chi tiết tác vụ',
+  teamTaskNoDescription: 'Chưa có mô tả — bấm “Sửa” để thêm',
+  teamTaskBlockedBy: 'Bị chặn bởi',
   teamTaskSubjectPlaceholder: 'Mô tả việc cần làm trong một dòng',
   teamTaskDescriptionPlaceholder: 'Thông tin bổ sung (không bắt buộc)',
   teamFilterAll: 'Tất cả',
diff --git a/src/client/locales-zh-HK.ts b/src/client/locales-zh-HK.ts
index f6e3ea6..a12ac79 100644
--- a/src/client/locales-zh-HK.ts
+++ b/src/client/locales-zh-HK.ts
@@ -458,6 +458,9 @@ export const zhHK: Record<string, string> = {
   teamTaskError: '操作失敗：{message}',
   teamTaskDeleted: '已刪除',
   teamTaskActions: '任務操作',
+  teamTaskDetail: '任務詳情',
+  teamTaskNoDescription: '暫無描述，點擊「編輯」補充',
+  teamTaskBlockedBy: '受阻於',
   teamTaskSubjectPlaceholder: '一句話說明要做什麼',
   teamTaskDescriptionPlaceholder: '補充說明（可選）',
   teamFilterAll: '全部',
diff --git a/src/client/locales-zh-MO.ts b/src/client/locales-zh-MO.ts
index e5d9275..75b5ab9 100644
--- a/src/client/locales-zh-MO.ts
+++ b/src/client/locales-zh-MO.ts
@@ -458,6 +458,9 @@ export const zhMO: Record<string, string> = {
   teamTaskError: '操作失敗：{message}',
   teamTaskDeleted: '已刪除',
   teamTaskActions: '任務操作',
+  teamTaskDetail: '任務詳情',
+  teamTaskNoDescription: '暫無描述，點擊「編輯」補充',
+  teamTaskBlockedBy: '受阻於',
   teamTaskSubjectPlaceholder: '一句話說明要做什麼',
   teamTaskDescriptionPlaceholder: '補充說明（可選）',
   teamFilterAll: '全部',
diff --git a/src/client/locales-zh-TW.ts b/src/client/locales-zh-TW.ts
index 260c86f..da47f2e 100644
--- a/src/client/locales-zh-TW.ts
+++ b/src/client/locales-zh-TW.ts
@@ -458,6 +458,9 @@ export const zhTW: Record<string, string> = {
   teamTaskError: '操作失敗：{message}',
   teamTaskDeleted: '已刪除',
   teamTaskActions: '任務操作',
+  teamTaskDetail: '任務詳情',
+  teamTaskNoDescription: '暫無描述，點擊「編輯」補充',
+  teamTaskBlockedBy: '受阻於',
   teamTaskSubjectPlaceholder: '一句話說明要做什麼',
   teamTaskDescriptionPlaceholder: '補充說明（可選）',
   teamFilterAll: '全部',
diff --git a/src/client/locales.ts b/src/client/locales.ts
index 3d219ad..4650a3c 100644
--- a/src/client/locales.ts
+++ b/src/client/locales.ts
@@ -455,6 +455,9 @@ export const zh = {
   teamTaskError: '操作失败：{message}',
   teamTaskDeleted: '已删除',
   teamTaskActions: '任务操作',
+  teamTaskDetail: '任务详情',
+  teamTaskNoDescription: '暂无描述，点击「编辑」补充',
+  teamTaskBlockedBy: '被阻塞',
   teamTaskSubjectPlaceholder: '一句话说明要做什么',
   teamTaskDescriptionPlaceholder: '补充说明（可选）',
   teamFilterAll: '全部',
@@ -959,6 +962,9 @@ export const en: Record<keyof typeof zh, string> = {
   teamTaskError: 'Operation failed: {message}',
   teamTaskDeleted: 'Deleted',
   teamTaskActions: 'Task actions',
+  teamTaskDetail: 'Task detail',
+  teamTaskNoDescription: 'No description yet — click Edit to add one',
+  teamTaskBlockedBy: 'Blocked by',
   teamTaskSubjectPlaceholder: 'One line describing the work',
   teamTaskDescriptionPlaceholder: 'Extra context (optional)',
   teamFilterAll: 'All',
diff --git a/src/client/tasks-graph.module.css b/src/client/tasks-graph.module.css
index da7bd4c..49d1b9b 100644
--- a/src/client/tasks-graph.module.css
+++ b/src/client/tasks-graph.module.css
@@ -223,6 +223,7 @@
 
 .taskLine {
   display: flex;
+  cursor: pointer;
   align-items: center;
   gap: 4px;
   margin-top: 3px;
@@ -240,6 +241,16 @@
   color: var(--dsw-alias-state-business-primary);
 }
 
+.taskLine:hover .taskSubject {
+  color: var(--dsw-alias-label-primary);
+}
+
+.taskLine:focus-visible {
+  outline: 2px solid var(--dsw-alias-state-business-primary);
+  outline-offset: 1px;
+  border-radius: 2px;
+}
+
 .taskSubject {
   flex: 1;
   min-width: 0;
@@ -699,6 +710,38 @@
   color: var(--dsw-alias-state-warn-primary);
 }
 
+/* ── Task window: markdown view + multi-line edit ──────────────────────── */
+
+.taskMarkdown {
+  max-height: 260px;
+  overflow-y: auto;
+  padding: 2px 0;
+  font-size: 12px;
+  line-height: 1.55;
+  color: var(--dsw-alias-label-primary);
+  scrollbar-width: thin;
+}
+
+.taskTextarea {
+  width: 100%;
+  min-height: 120px;
+  padding: 6px 8px;
+  border: 1px solid var(--dsw-alias-border-l4);
+  border-radius: 3px;
+  background: var(--dsw-alias-bg-base);
+  color: var(--dsw-alias-label-primary);
+  font-family: var(--ds-font-family-code);
+  font-size: 11.5px;
+  line-height: 1.5;
+  resize: vertical;
+  box-sizing: border-box;
+}
+
+.taskTextarea:focus {
+  outline: none;
+  border-color: var(--dsw-alias-state-business-primary);
+}
+
 /* ── Task create/edit dialog ───────────────────────────────────────────── */
 
 .taskForm {
@@ -836,8 +879,14 @@
   display: flex;
   align-items: center;
   gap: 5px;
+  width: 100%;
   padding: 3px 5px;
   border-radius: 3px;
+  text-align: left;
+}
+
+.teamTask > * {
+  min-width: 0;
 }
 
 .teamTask:hover {
diff --git a/src/client/tasks-shared.tsx b/src/client/tasks-shared.tsx
index 627a5b4..d83e077 100644
--- a/src/client/tasks-shared.tsx
+++ b/src/client/tasks-shared.tsx
@@ -143,14 +143,29 @@ export function primaryTask(tasks: readonly TasksNodeTask[]): TasksNodeTask | un
  * status word, and a `+N` tail when the agent owns more. Renders nothing
  * without tasks, so non-team nodes keep the three-line shape.
  */
-export function TaskLine(props: { tasks: readonly TasksNodeTask[] | undefined }): ReactNode {
+export function TaskLine(props: {
+  tasks: readonly TasksNodeTask[] | undefined
+  onOpenTask(taskId: string, anchor: HTMLElement): void
+}): ReactNode {
   const tasks = props.tasks ?? []
   const primary = primaryTask(tasks)
   if (primary === undefined) return null
   return (
     <span
+      role="button"
+      tabIndex={0}
       className={css.taskLine}
       title={tasks.map(task => `${task.subject}（${t(taskStatusKey(task.status))}）`).join('\n')}
+      onClick={(event) => {
+        event.stopPropagation()
+        props.onOpenTask(primary.id, event.currentTarget)
+      }}
+      onKeyDown={(event) => {
+        if (event.key !== 'Enter' && event.key !== ' ') return
+        event.preventDefault()
+        event.stopPropagation()
+        props.onOpenTask(primary.id, event.currentTarget)
+      }}
     >
       <span className={css.taskGlyph} aria-hidden="true"><IconChecklistOutline14 size={9} /></span>
       <span className={css.taskSubject}>{primary.subject}</span>
diff --git a/tests/tasks-page.spec.tsx b/tests/tasks-page.spec.tsx
index 37b3e86..f5e9d4c 100644
--- a/tests/tasks-page.spec.tsx
+++ b/tests/tasks-page.spec.tsx
@@ -161,7 +161,7 @@ describe('Tasks page interactions', () => {
     unmount()
   })
 
-  it('jumps to the transcript on node click and opens the ⓘ popover', async () => {
+  it('opens the node detail window on card click; the jump button goes to the transcript', async () => {
     const opened: unknown[] = []
     const store = makeStore(snapshotWithChildren(1))
     const ctx = makeCtx(store, { openSubagent: (address) => { opened.push(address) } })
@@ -171,8 +171,16 @@ describe('Tasks page interactions', () => {
     // Folded by default: unfold so the settled child is visible.
     const foldToggle = container.querySelector('button[aria-label="展开已完成的节点"]') as HTMLButtonElement
     await act(async () => { foldToggle.click() })
-    const node = container.querySelector('[aria-label*="子代理 0"]') as HTMLElement
+    const node = container.querySelector('[data-graph-node="child-0"]') as HTMLElement
     await act(async () => { node.click() })
+    // The card no longer jumps directly: it IS the detail affordance.
+    expect(opened).toEqual([])
+    const dialog = document.querySelector('[role="dialog"]') as HTMLElement
+    expect(dialog).not.toBeNull()
+    expect(dialog.textContent).toContain('节点详情')
+    const jump = [...dialog.querySelectorAll('button')].find(button => button.textContent?.includes('查看转录'))
+    expect(jump).toBeDefined()
+    await act(async () => { jump?.click() })
     expect(opened).toEqual([{ parentSessionId: 'root', childSessionId: 'child-0', mode: 'one-shot' }])
     unmount()
   })
@@ -192,14 +200,16 @@ describe('Tasks page interactions', () => {
     unmount()
   })
 
-  it('opens the node detail popover from the ⓘ button', async () => {
+  it('ships no per-card detail button any more (the card itself is the affordance)', async () => {
     const store = makeStore(snapshotWithChildren(1))
     const { container, unmount } = renderRoot(
       createElement(SubagentView, { sessionId: 'root', active: true, ctx: makeCtx(store) }),
     )
-    // The root node's detail affordance opens the detail card (portaled to body).
-    const info = container.querySelector('button[aria-label="节点详情"]') as HTMLButtonElement
-    await act(async () => { info.click() })
+    const root = container.querySelector('[data-graph-node="root"]') as HTMLElement
+    expect(root).not.toBeNull()
+    // A card is a single click target: no nested control inside it.
+    expect(root.querySelectorAll('button')).toHaveLength(0)
+    await act(async () => { root.click() })
     expect(document.querySelectorAll('[role="dialog"]')).toHaveLength(1)
     expect(document.body.textContent).toContain('查看转录')
     unmount()
@@ -226,7 +236,9 @@ describe('Tasks page graph interactions and team board', () => {
     const node = container.querySelector('[data-graph-node="child-0"]') as HTMLElement
     expect(node).not.toBeNull()
     await act(async () => { node.click() })
-    expect(opened).toEqual([{ parentSessionId: 'root', childSessionId: 'child-0', mode: 'one-shot' }])
+    // The click is not stolen: the card's own action (its detail window) ran.
+    expect(document.querySelector('[role="dialog"]')).not.toBeNull()
+    expect(opened).toEqual([])
     unmount()
   })
 
@@ -317,23 +329,29 @@ describe('Tasks page: owned tasks, host-primitive controls, draggable output', (
     unmount()
   })
 
-  it('ships no native select/input: the board edits through host primitives', async () => {
+  it('opens the shared task window from a board row (markdown first, no native select)', async () => {
     teamPayload = teamWithOwnedTask()
     const store = makeStore(snapshotWithChildren(1))
     const { container, unmount } = renderRoot(
       createElement(SubagentView, { sessionId: 'root', active: true, ctx: makeCtx(store) }),
     )
     await act(async () => { await Promise.resolve() })
-    // No native form controls anywhere on the page.
     expect(container.querySelectorAll('select')).toHaveLength(0)
-    expect(container.querySelectorAll('input')).toHaveLength(0)
-    // The row's overflow menu is a host Menu opened from a host Button.
-    const menuButton = container.querySelector('button[aria-label^="任务操作"]') as HTMLButtonElement
-    expect(menuButton).not.toBeNull()
-    await act(async () => { menuButton.click() })
-    expect(document.body.textContent).toContain('完成')
-    expect(document.body.textContent).toContain('编辑')
-    expect(document.body.textContent).toContain('删除')
+    const row = container.querySelector('button[aria-label^="任务详情"]') as HTMLButtonElement
+    expect(row).not.toBeNull()
+    await act(async () => { row.click() })
+    const dialog = document.querySelector('[role="dialog"]') as HTMLElement
+    expect(dialog).not.toBeNull()
+    // View mode first: the description renders as markdown, edited only on demand.
+    expect(dialog.textContent).toContain('细节')
+    expect(dialog.querySelector('textarea')).toBeNull()
+    const edit = [...dialog.querySelectorAll('button')].find(button => button.textContent?.includes('编辑'))
+    expect(edit).toBeDefined()
+    await act(async () => { edit?.click() })
+    // Editing turns the SAME window into the multi-line editor.
+    const textarea = dialog.querySelector('textarea')
+    expect(textarea).not.toBeNull()
+    expect(textarea?.getAttribute('aria-label')).toBe('描述')
     unmount()
   })
 
@@ -387,3 +405,84 @@ describe('Tasks page: owned tasks, host-primitive controls, draggable output', (
     unmount()
   })
 })
+
+describe('Tasks page: the shared task window', () => {
+  it('opens from an agent node task line and saves a multi-line edit', async () => {
+    teamPayload = {
+      available: true,
+      team: {
+        members: [
+          { id: 'root', name: 'lead', role: 'lead', status: 'running', diagnostics: [] },
+          { id: 'child-0', name: 'writer', role: 'teammate', status: 'running', model: 'glm-5.3', diagnostics: [] },
+        ],
+        tasks: [{
+          id: 't1', revision: 4, subject: '收窄卡片', description: '第一行\n\n- 第二行', status: 'in_progress',
+          ownerName: 'writer', blockedBy: [], writeScopes: [], ready: true, writeScopeWarnings: [],
+        }],
+      },
+    }
+    const store = makeStore(snapshotWithChildren(1))
+    const { container, unmount } = renderRoot(
+      createElement(SubagentView, { sessionId: 'root', active: true, ctx: makeCtx(store) }),
+    )
+    await act(async () => { await Promise.resolve() })
+    const node = container.querySelector('[data-graph-node="child-0"]') as HTMLElement
+    const taskLine = node.querySelector('[role="button"]') as HTMLElement
+    expect(taskLine).not.toBeNull()
+    await act(async () => { taskLine.click() })
+    const dialog = document.querySelector('[role="dialog"]') as HTMLElement
+    expect(dialog).not.toBeNull()
+    expect(dialog.textContent).toContain('收窄卡片')
+    // Markdown view renders the multi-line body before any editing.
+    expect(dialog.querySelector('textarea')).toBeNull()
+    const edit = [...dialog.querySelectorAll('button')].find(button => button.textContent?.includes('编辑'))
+    await act(async () => { edit?.click() })
+    const area = dialog.querySelector('textarea') as HTMLTextAreaElement
+    expect(area.value).toBe('第一行\n\n- 第二行')
+    await act(async () => {
+      const setter = Object.getOwnPropertyDescriptor(window.HTMLTextAreaElement.prototype, 'value')?.set
+      setter?.call(area, '改过的描述')
+      area.dispatchEvent(new Event('input', { bubbles: true }))
+    })
+    const save = [...dialog.querySelectorAll('button')].find(button => button.textContent?.includes('保存'))
+    await act(async () => { save?.click() })
+    await act(async () => { await Promise.resolve() })
+    const update = teamMutations.find(entry => entry.method === 'teams.taskUpdate')
+    expect(update?.body.action).toBe('edit')
+    expect(update?.body.expectedRevision).toBe(4)
+    expect(update?.body.description).toBe('改过的描述')
+    unmount()
+  })
+
+  it('reassigns the owner straight from the window (CAS on the current revision)', async () => {
+    teamPayload = {
+      available: true,
+      team: {
+        members: [
+          { id: 'root', name: 'lead', role: 'lead', status: 'running', diagnostics: [] },
+          { id: 'child-0', name: 'writer', role: 'teammate', status: 'running', diagnostics: [] },
+          { id: 'child-1', name: 'reviewer', role: 'teammate', status: 'idle', diagnostics: [] },
+        ],
+        tasks: [{
+          id: 't1', revision: 7, subject: '收窄卡片', description: '', status: 'pending',
+          ownerName: 'writer', blockedBy: [], writeScopes: [], ready: true, writeScopeWarnings: [],
+        }],
+      },
+    }
+    const store = makeStore(snapshotWithChildren(2))
+    const { container, unmount } = renderRoot(
+      createElement(SubagentView, { sessionId: 'root', active: true, ctx: makeCtx(store) }),
+    )
+    await act(async () => { await Promise.resolve() })
+    const row = container.querySelector('button[aria-label^="任务详情"]') as HTMLButtonElement
+    await act(async () => { row.click() })
+    const dialog = document.querySelector('[role="dialog"]') as HTMLElement
+    const reviewer = [...dialog.querySelectorAll('button')].find(button => button.textContent === 'reviewer')
+    expect(reviewer).toBeDefined()
+    await act(async () => { reviewer?.click() })
+    await act(async () => { await Promise.resolve() })
+    const update = teamMutations.find(entry => entry.method === 'teams.taskUpdate')
+    expect(update?.body).toMatchObject({ action: 'reassign', owner: 'reviewer', expectedRevision: 7 })
+    unmount()
+  })
+})