diff --git a/src/components/AiChat.vue b/src/components/AiChat.vue
index fb6b689..5f7441a 100644
--- a/src/components/AiChat.vue
+++ b/src/components/AiChat.vue
@@ -2230,6 +2230,12 @@ onMounted(async () => {
   await store.loadProviders()
   await store.loadConversations()
   store.loadSkills()
+  // @ 提及预加载: AiChat 的 @ 联想读取 projectsStore.projects/tasks,
+  // 但 loadProjects/loadTasks 分别绑在 Projects.vue/Tasks.vue 的 onMounted。
+  // 若用户启动后直接用 AI Chat(未访问过这两个页面), store 数据为空 → @ 无匹配。
+  // 此处按需预加载(已加载则跳过), 不阻塞首屏(无 await, 后台执行)。
+  if (!projectsStore.projects.length) void projectsStore.loadProjects()
+  if (!projectsStore.tasks.length) void projectsStore.loadTasks()
   // B-260616-12: 监听工具慢执行提示(useAiEvents 经 Tauri 事件总线广播;composable 无组件上下文,
   // 由本组件弹本地 toast。主窗口与分离窗口各挂一份 AiChat,各自消费,无重复——emit 单发,
   // 两窗口的 listener 各收一次但 msg 相同,toast 各自渲染互不干扰)
diff --git a/src/components/ToolCard.vue b/src/components/ToolCard.vue
index 52f4cb1..0b43794 100644
--- a/src/components/ToolCard.vue
+++ b/src/components/ToolCard.vue
@@ -191,416 +191,33 @@
   </div>
 </template>
 
-<script lang="ts">
-import type { AiToolCallInfo } from '@/api/types'
-import i18n from '@/i18n'
-
-// composable 外全局 i18n 实例(非 setup 上下文,供纯函数 argLabel/formatToolResult 使用)
-const t = ((i18n as any).global.t as (k: string, p?: Record<string, unknown>) => string).bind((i18n as any).global)
-
-/** 工具结果 JSON 已知字段(全可选;list_* 运行时返回数组,靠 Array.isArray 区分) */
-interface ToolResult {
-  path?: string
-  pattern?: string
-  from?: string
-  to?: string
-  content?: string
-  lines?: number | null
-  size?: number | null
-  bytes_written?: number
-  new_size?: number
-  bytes_moved?: number
-  entries?: Array<{ name: string; type: string; size?: number; depth?: number }>
-  name?: string
-  title?: string
-  field?: string
-  id?: string
-  status?: string
-  stack?: string
-  bound?: boolean
-  deleted?: boolean
-  restored?: boolean
-  purged?: boolean
-  updated?: boolean
-  changed?: boolean
-  renamed?: boolean
-  exists?: boolean
-  is_binary?: boolean
-  is_dir?: boolean
-  permanent?: boolean
-  backed_up?: boolean
-  size_diff?: number
-  exit_code?: number
-  duration_ms?: number
-  stdout?: string
-  stderr?: string
-  truncated?: boolean
-  results?: Array<{ path?: string; size?: number }>
-  total?: number
-  has_more?: boolean
-  warning?: string
-  review_rounds?: number
-  // UX-260618-05~12:补全后端返回前端消费的字段(review_rounds/truncated/bytes_moved/has_more/total/entries 已存在)
-  task_id?: string
-  execution_id?: string
-  target_status?: string
-  note?: string
-  diff?: string
-  matches_found?: number
-  backup_path?: string
-  returned_lines?: number
-  items?: Array<Record<string, unknown>>
-  modified?: number | null
-  old_size?: number | null
-  encoding?: string
-  cross_volume?: boolean
-}
-
-/** 内联 SVG 图标字符串(经 v-html 注入,常量安全;图标库改造见决策记录) */
-const dirIcon = '<svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8"><path d="M22 19a2 2 0 01-2 2H4a2 2 0 01-2-2V5a2 2 0 012-2h5l2 3h9a2 2 0 012 2z"/></svg>'
-const fileIcon = '<svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8"><path d="M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z"/><polyline points="14 2 14 8 20 8"/></svg>'
-
-/** 默认保持展开:执行中/待审批/已拒绝/write_file——折叠无收益 */
-function shouldKeepOpen(tc: AiToolCallInfo): boolean {
-  return tc.status === 'running'
-    || tc.status === 'pending_approval'
-    || tc.status === 'rejected'
-    || tc.name === 'write_file'
-}
-
-/**
- * UX-260616-01: 工具执行失败检测(completed 状态下的失败语义)。
- *
- * 后端 AR-6:Low 风险工具失败不 emit AiError,改 emit AiToolCallCompleted(result=错误),
- * 故失败工具 status 仍为 'completed',与成功工具视觉同态(原绿色边框+绿色结果框)。
- * 此函数区分两类失败:
- *  - run_command exit_code≠0:结果 JSON 合法,parseResult 命中,看 exit_code 判失败
- *  - 通用工具失败:AR-6 路径后端塞 serde_json::Value::String("工具 X 执行失败: ..."),
- *    前端 parseResult 返回 null(非 JSON 对象)→ 走 raw 文本兜底,无结构信号
- *    此时按行首前缀 "执行失败"/"Error:"/"Failed:" 启发式判定(对齐后端 err_msg 格式,
- *    行首锚定避免误伤含这些子串的正常产出,见 UX-260617-18)。
- *
- * 注意:status==='rejected'(用户拒绝)走独立分支,不算工具失败,不进此函数。
- * running/pending_approval 自然 false(无 result 或 result 未稳定)。
- */
-function isToolFailure(tc: AiToolCallInfo): boolean {
-  if (tc.status !== 'completed') return false
-  // run_command:结构化 exit_code 判定(可靠)
-  if (tc.name === 'run_command') {
-    const r = parseResult(tc.result)
-    if (r && typeof r.exit_code === 'number') return r.exit_code !== 0
-    // run_command 但无 exit_code(异常)→ 保守判失败
-    if (r) return true
-  }
-  // 通用工具:parseResult 返回 null(非 JSON,AR-6 错误字符串路径)→ 看文本前缀
-  if (!parseResult(tc.result)) {
-    const raw = typeof tc.result === 'string' ? tc.result : ''
-    if (!raw) return false
-    // UX-260617-18:收窄为行首锚定(原 /执行失败|failed|error[:\s]/i 匹配任意位置的子串,
-    // 误伤 search_files 命中 error.log / run_command stderr 含 "warning" 等正常产出)。
-    // 仅当某行以「执行失败」(中文 err_msg 前缀)/「Error:」/「Failed:」开头才判失败。
-    return /^(执行失败|Error:|Failed:)/m.test(raw)
-  }
-  return false
-}
-
-function formatToolName(name: string): string {
-  if (!name) return ''
-  return name.replace(/_/g, ' ').replace(/\b\w/g, c => c.toUpperCase())
-}
-
-/** run_command 命令首行截断(头部展示;多行命令取首行,超长省略) */
-function shortCmd(cmd: string, max = 48): string {
-  const firstLine = cmd.split('\n')[0].replace(/\s+/g, ' ').trim()
-  return firstLine.length > max ? firstLine.slice(0, max) + '…' : firstLine
-}
-
-function formatJson(data: unknown): string {
-  try {
-    return JSON.stringify(data, null, 2)
-  } catch {
-    return String(data)
-  }
-}
-
-/** 审批参数 key → 友好标签映射(动态 i18n);未命中回退原 key */
-function argLabel(key: string): string {
-  const map: Record<string, string> = {
-    id: t('aiTool.argLabel.id'),
-    project_id: t('aiTool.argLabel.projectId'),
-    name: t('aiTool.argLabel.name'),
-    title: t('aiTool.argLabel.title'),
-    description: t('aiTool.argLabel.description'),
-    field: t('aiTool.argLabel.field'),
-    value: t('aiTool.argLabel.value'),
-    path: t('aiTool.argLabel.path'),
-    priority: t('aiTool.argLabel.priority'),
-    tags: t('aiTool.argLabel.tags'),
-    source: t('aiTool.argLabel.source'),
-  }
-  return map[key] || key
-}
-
-/** 审批参数转键值对数组(非对象/空时返回空数组,防 args 非 object 时 v-for 报错) */
-function toolArgsEntries(args: unknown): Array<{ key: string; label: string; val: unknown }> {
-  if (args && typeof args === 'object' && !Array.isArray(args)) {
-    return Object.entries(args as Record<string, unknown>).map(([key, val]) => ({
-      key,
-      label: argLabel(key),
-      val,
-    }))
-  }
-  return []
-}
-
-/** 格式化单个审批参数值:字符串直接展示(超长截断),对象/数组 JSON 化后截断 */
-function formatArgValue(val: unknown): string {
-  if (val == null) return ''
-  if (typeof val === 'string') return val.length > 300 ? val.slice(0, 300) + '…' : val
-  if (typeof val === 'object') {
-    try {
-      const s = JSON.stringify(val)
-      return s.length > 300 ? s.slice(0, 300) + '…' : s
-    } catch {
-      return String(val)
-    }
-  }
-  return String(val)
-}
-
-/** 安全解析工具结果 JSON;list_* 运行时是数组,类型归 ToolResult 靠 Array.isArray 区分 */
-function parseResult(result: unknown): ToolResult | null {
-  if (!result) return null
-  try {
-    return (typeof result === 'string' ? JSON.parse(result) : result) as ToolResult
-  } catch {
-    return null
-  }
-}
-
-function toolCategory(name: string): string {
-  if (!name) return 'default'
-  if (name === 'read_file') return 'file-read'
-  if (name === 'write_file') return 'file-write'
-  if (name === 'list_directory') return 'dir'
-  if (name.includes('create')) return 'create'
-  if (name.includes('delete')) return 'delete'
-  if (name.includes('list')) return 'list'
-  return 'default'
-}
-
-function toolIcon(name: string): string {
-  if (name === 'read_file') return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z"/><polyline points="14 2 14 8 20 8"/><line x1="16" y1="13" x2="8" y2="13"/><line x1="16" y1="17" x2="8" y2="17"/></svg>'
-  if (name === 'write_file') return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M11 4H4a2 2 0 00-2 2v14a2 2 0 002 2h14a2 2 0 002-2v-7"/><path d="M18.5 2.5a2.121 2.121 0 013 3L12 15l-4 1 1-4 9.5-9.5z"/></svg>'
-  if (name === 'list_directory') return dirIcon
-  if (name.includes('create')) return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>'
-  if (name.includes('delete')) return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="3 6 5 6 21 6"/><path d="M19 6v14a2 2 0 01-2 2H7a2 2 0 01-2-2V6m3 0V4a2 2 0 012-2h4a2 2 0 012 2v2"/></svg>'
-  return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>'
-}
-
-function shortPath(p: string): string {
-  const parts = p.replace(/\\/g, '/').split('/')
-  return parts.length <= 2 ? p : '.../' + parts.slice(-2).join('/')
-}
-
-/** 格式化字节数(兜底:undefined/null/负/NaN/Infinity 统一降级为 '0 B',防渲染异常) */
-function formatBytes(bytes: number | undefined | null): string {
-  if (typeof bytes !== 'number' || !Number.isFinite(bytes) || bytes <= 0) return '0 B'
-  if (bytes < 1024) return bytes + ' B'
-  if (bytes < 1048576) return (bytes / 1024).toFixed(1) + ' KB'
-  return (bytes / 1048576).toFixed(1) + ' MB'
-}
-
-/** 从工具 args(unknown)中安全取字符串字段;非对象/字段非 string 时返回空串 */
-function argString(args: unknown, key: string): string {
-  if (args && typeof args === 'object' && !Array.isArray(args)) {
-    const v = (args as Record<string, unknown>)[key]
-    return typeof v === 'string' ? v : ''
-  }
-  return ''
-}
-
-/**
- * 通用工具结果格式化(非文件类工具)。
- * UX-260616-04:统一 switch 覆盖全部工具产出人类可读摘要,不再走裸 JSON 兜底。
- * read_file/list_directory/write_file 有模板特化分支,不进此函数。
- */
-function formatToolResult(tc: AiToolCallInfo): string {
-  const r = parseResult(tc.result)
-  if (!r) {
-    // 非 JSON(纯文本:审批占位/错误/拒绝)→ 原样显示,审批占位时补拟执行参数避免空白
-    const raw = typeof tc.result === 'string' ? tc.result : ''
-    if (raw && tc.args && typeof tc.args === 'object') {
-      const a = tc.args as Record<string, unknown>
-      const detail = typeof a.title === 'string' ? a.title
-        : typeof a.name === 'string' ? a.name
-        : typeof a.path === 'string' ? a.path
-        : ''
-      if (detail) return t('aiTool.resultDetail', { raw, detail })
-    }
-    return raw
-  }
-  switch (tc.name) {
-    case 'list_projects':
-    case 'list_tasks':
-    case 'list_ideas':
-    case 'list_trash': {
-      // UX-260618-12: list_* 后端返 {items,total,has_more} 对象(非数组),渲染结构化列表替代裸 JSON
-      const items = Array.isArray(r) ? r : (Array.isArray(r.items) ? r.items : [])
-      const total = typeof r.total === 'number' ? r.total : items.length
-      const head = tc.name === 'list_projects' ? t('aiTool.projectCount', { n: total })
-        : tc.name === 'list_tasks' ? t('aiTool.taskCount', { n: total })
-        : tc.name === 'list_ideas' ? t('aiTool.ideaCount', { n: total })
-        : t('aiTool.trashCount', { n: total })
-      const lines = items.slice(0, 10).map((it: Record<string, unknown>) => {
-        const label = typeof it.name === 'string' ? it.name
-          : typeof it.title === 'string' ? it.title
-          : typeof it.id === 'string' ? it.id
-          : ''
-        const status = typeof it.status === 'string' ? ` [${it.status}]` : ''
-        const stack = typeof it.stack === 'string' ? ` (${it.stack})` : ''
-        return label ? `- ${label}${status}${stack}` : ''
-      }).filter(Boolean)
-      const parts = [head, ...lines]
-      if (r.has_more) parts.push(t('aiTool.listHasMore', { n: items.length }))
-      return parts.join('\n')
-    }
-    case 'write_file':
-      return `${r.path} (${formatBytes(r.bytes_written)})`
-    case 'update_task':
-      return r.updated !== false
-        ? t('aiTool.updatedTaskField', { id: r.id || '', field: r.field || '' })
-        : t('aiTool.updated')
-    case 'advance_task':
-      // UX-260618-09: review_rounds>0 显退回累加轮数,=0 回退原文案(首推无噪音)
-      // UX-260618-14: 后端返 TaskRecord(含 title),优先显 title,无则回退 id(防裸 UUID)
-      return typeof r.review_rounds === 'number' && r.review_rounds > 0
-        ? t('aiTool.advancedTaskWithRounds', { title: r.title || r.id || '', status: r.status || '', n: r.review_rounds })
-        : t('aiTool.advancedTask', { title: r.title || r.id || '', status: r.status || '' })
-    case 'delete_task':
-      return r.deleted ? t('aiTool.deleted') : t('aiTool.deleteIneffective')
-    case 'delete_file':
-      return r.permanent
-        ? t('aiTool.deleteFilePermanent', { path: r.path || '' })
-        : t('aiTool.deleteFileSoft', { path: r.path || '', backup_path: r.backup_path || '' })
-    case 'run_command':
-      return formatCommandResult(r)
-    case 'patch_file':
-      return r.changed === false
-        ? t('aiTool.patchedNoChange', { path: r.path || '' })
-        : t('aiTool.patchedFile', { path: r.path || '', diff: formatSizeDiff(r.size_diff) })
-    case 'append_file':
-      return t('aiTool.appendedTo', { path: r.path || '', bytes: formatBytes(r.bytes_written) })
-    case 'rename_file':
-      return r.renamed
-        ? (r.cross_volume
-            ? t('aiTool.renamedCrossVolume', { from: r.from || '', to: r.to || '', bytes: formatBytes(r.bytes_moved) })
-            : t('aiTool.renamedWithBytes', { from: r.from || '', to: r.to || '', bytes: formatBytes(r.bytes_moved) }))
-        : formatJson(r)
-    case 'search_files': {
-      const n = typeof r.total === 'number' ? r.total : (Array.isArray(r.results) ? r.results.length : 0)
-      return t('aiTool.foundN', { n })
-    }
-    case 'file_info':
-      return formatFileInfoResult(r)
-    case 'bind_directory':
-      return r.bound
-        ? t('aiTool.boundDir', { path: r.path || '', stack: r.stack || '' })
-        : formatJson(r)
-    case 'run_workflow': {
-      // UX-260618-05: 后端返 {task_id,target_status,execution_id,status,note},显 execution_id 对应执行实例
-      const execId = typeof r.execution_id === 'string' && r.execution_id
-        ? r.execution_id
-        : (typeof r.id === 'string' ? r.id : '')
-      if (!execId) return formatJson(r)
-      return t('aiTool.workflowTriggered', { id: r.task_id || '', status: r.target_status || '', exec: execId })
-    }
-    default:
-      return formatJson(r)
-  }
-}
-
-/** size_diff 数字 → "+N"/"-N"/"+0" 字符串(负数补减号,正数补加号) */
-function formatSizeDiff(diff: number | undefined | null): string {
-  const n = typeof diff === 'number' ? diff : 0
-  return n >= 0 ? `+${n}` : `${n}`
-}
-
-/**
- * run_command 结果摘要:exit_code 标题 + stdout/stderr 前 N 行 + 总行数提示(截断,不全量显示)。
- * 输出可能很大(编译/find/cat 大文件),仅显示前若干行 + 总行数提示,防撑爆卡片。
- */
-function formatCommandResult(r: ToolResult): string {
-  const code = typeof r.exit_code === 'number' ? r.exit_code : -1
-  const ms = typeof r.duration_ms === 'number' ? r.duration_ms : 0
-  const head = code === 0
-    ? t('aiTool.commandOk', { ms })
-    : t('aiTool.commandFailed', { code })
-  // 合并 stdout + stderr(实际 stderr 通常含报错),各自取前若干行
-  const MAX_LINES = 20
-  const out = combineAndTruncateLines(r.stdout, r.stderr, MAX_LINES)
-  const parts = [head]
-  if (out.text) {
-    parts.push(out.text)
-    if (out.truncated) {
-      parts.push(t('aiTool.commandOutputLines', { n: out.total }))
-    }
-  }
-  return parts.join('\n')
-}
-
-/** SW-260618-19: 合并 stdout/stderr(空串跳过),供 cmdOutput 展开 + combineAndTruncateLines 截断共享 DRY */
-function combineOutputs(stdout: string | undefined, stderr: string | undefined): string {
-  const parts: string[] = []
-  if (stdout) parts.push(stdout)
-  if (stderr) parts.push(stderr)
-  return parts.join('\n')
-}
-
-/** 合并 stdout/stderr 取前 N 行,返回截断后文本 + 是否截断 + 总行数(合并复用 combineOutputs) */
-function combineAndTruncateLines(stdout: string | undefined, stderr: string | undefined, maxLines: number): { text: string; truncated: boolean; total: number } {
-  const combined = combineOutputs(stdout, stderr)
-  if (!combined) return { text: '', truncated: false, total: 0 }
-  const allLines = combined.split('\n')
-  const total = allLines.length
-  if (total <= maxLines) {
-    return { text: combined, truncated: false, total }
-  }
-  // 取前 N 行 + 省略提示
-  return { text: allLines.slice(0, maxLines).join('\n'), truncated: true, total }
-}
-
-/** file_info 结果摘要:存在性 + 大小 + 行数(文本)/二进制/目录 标注 */
-function formatFileInfoResult(r: ToolResult): string {
-  if (r.exists === false) {
-    return t('aiTool.fileInfoMissing', { path: r.path || '' })
-  }
-  let base = t('aiTool.fileInfoSize', { path: r.path || '', size: formatBytes(typeof r.size === 'number' ? r.size : 0) })
-  const extras: string[] = []
-  // UX-260618-12: file_info modified 时间(epoch_ms → 客户端 toLocaleString)
-  if (typeof r.modified === 'number' && r.modified > 0) {
-    extras.push(t('aiTool.fileInfoModified', { time: new Date(r.modified).toLocaleString() }))
-  }
-  if (r.is_dir) {
-    extras.push(t('aiTool.fileInfoDir'))
-  } else {
-    if (typeof r.lines === 'number') {
-      extras.push(t('aiTool.fileInfoLines', { n: r.lines }))
-    }
-    if (r.is_binary) {
-      extras.push(t('aiTool.fileInfoBinary'))
-    }
-  }
-  return base + extras.join('')
-}
-</script>
-
 <script setup lang="ts">
 import { computed, ref, reactive, watch, onBeforeUnmount } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useProjectStore } from '@/stores/project'
 import { useConfirm } from '@/composables/useConfirm'
 import { STREAM_TIMEOUT_MS } from '@/composables/ai/useAiStream'
+import {
+  shouldKeepOpen,
+  isToolFailure,
+  formatToolName,
+  shortCmd,
+  toolArgsEntries,
+  formatArgValue,
+  parseResult,
+  toolCategory,
+  toolIcon,
+  shortPath,
+  formatBytes,
+  argString,
+  formatSizeDiff,
+  combineOutputs,
+  formatToolResult,
+  toolResultSummary,
+  dirIcon,
+  fileIcon,
+} from '@/composables/ai/useToolCard'
+import type { AiToolCallInfo } from '@/api/types'
 import ConfirmDialog from './ConfirmDialog.vue'
 
 const { t } = useI18n()
@@ -885,84 +502,6 @@ function toolDisplayName(tc: AiToolCallInfo): string {
     default: return formatToolName(tc.name)
   }
 }
-
-/**
- * completed 工具结果的一句话摘要(折叠态 header 也能看到,避免光秃秃)。
- * UX-260616-04:覆盖范围与 formatToolResult 对齐(header+body 一致);
- * read_file/list_directory/write_file 有模板特化分支,header 摘要仍显示关键计数。
- */
-function toolResultSummary(tc: AiToolCallInfo): string {
-  if (tc.status !== 'completed') return ''
-  const r = parseResult(tc.result)
-  if (!r) return ''
-  switch (tc.name) {
-    case 'list_tasks':
-    case 'list_projects':
-    case 'list_ideas':
-    case 'list_trash': {
-      // UX-260618-10/12: 后端返 {items,total,has_more} 对象(非数组),原 Array.isArray(r) 恒 false→折叠态无计数
-      const n = Array.isArray(r) ? r.length
-        : (typeof r.total === 'number' ? r.total
-          : (Array.isArray(r.items) ? r.items.length : 0))
-      if (!n) return ''
-      const key = tc.name === 'list_projects' ? 'projectCount'
-        : tc.name === 'list_tasks' ? 'taskCount'
-        : tc.name === 'list_ideas' ? 'ideaCount'
-        : 'trashCount'
-      return t(`aiTool.${key}`, { n })
-    }
-    case 'create_project': return r.name ? t('aiTool.createdWithName', { name: r.name }) : t('aiTool.created')
-    case 'create_idea':
-    case 'create_task': return r.title ? t('aiTool.createdWithName', { name: r.title }) : t('aiTool.created')
-    case 'update_project': return r.field ? t('aiTool.updatedField', { field: r.field }) : t('aiTool.updated')
-    case 'update_task': return r.updated !== false
-      ? t('aiTool.updatedTaskField', { id: r.id || '', field: r.field || '' })
-      : t('aiTool.updated')
-    case 'advance_task': return typeof r.review_rounds === 'number' && r.review_rounds > 0
-      // UX-260618-14: 优先显 title(后端返 TaskRecord),无则回退 id,防裸 UUID
-      ? t('aiTool.advancedTaskWithRounds', { title: r.title || r.id || '', status: r.status || '', n: r.review_rounds })
-      : t('aiTool.advancedTask', { title: r.title || r.id || '', status: r.status || '' })
-    case 'delete_project':
-    case 'delete_task': return r.deleted ? t('aiTool.deleted') : t('aiTool.deleteIneffective')
-    case 'delete_file': return r.permanent
-      ? t('aiTool.deleteFilePermanent', { path: r.path || '' })
-      : t('aiTool.deleteFileSoft', { path: r.path || '', backup_path: r.backup_path || '' })
-    case 'restore_project': return r.restored ? t('aiTool.restored') : t('aiTool.restoreIneffective')
-    case 'purge_project': return r.purged ? t('aiTool.purged') : t('aiTool.purgeIneffective')
-    case 'run_command': {
-      const code = typeof r.exit_code === 'number' ? r.exit_code : -1
-      const ms = typeof r.duration_ms === 'number' ? r.duration_ms : 0
-      return code === 0 ? t('aiTool.commandOk', { ms }) : t('aiTool.commandFailed', { code })
-    }
-    case 'patch_file': return r.changed === false
-      ? t('aiTool.patchedNoChange', { path: r.path || '' })
-      : t('aiTool.patchedFile', { path: r.path || '', diff: formatSizeDiff(r.size_diff) })
-    case 'append_file': return t('aiTool.appendedTo', { path: r.path || '', bytes: formatBytes(r.bytes_written) })
-    case 'rename_file': return r.renamed
-      ? (r.cross_volume
-          ? t('aiTool.renamedCrossVolume', { from: r.from || '', to: r.to || '', bytes: formatBytes(r.bytes_moved) })
-          : t('aiTool.renamedWithBytes', { from: r.from || '', to: r.to || '', bytes: formatBytes(r.bytes_moved) }))
-      : ''
-    case 'search_files': {
-      const n = typeof r.total === 'number' ? r.total : (Array.isArray(r.results) ? r.results.length : 0)
-      return t('aiTool.foundN', { n })
-    }
-    case 'file_info': return r.exists === false
-      ? t('aiTool.fileInfoMissing', { path: r.path || '' })
-      : t('aiTool.fileInfoSize', { path: r.path || '', size: formatBytes(typeof r.size === 'number' ? r.size : 0) })
-    case 'bind_directory': return r.bound
-      ? t('aiTool.boundDir', { path: r.path || '', stack: r.stack || '' })
-      : ''
-    case 'run_workflow': {
-      // UX-260618-05: header 副标题显 execution_id 概要(原 workflowHint「请到工作流页面运行」误导——工作流已触发)
-      const execId = typeof r.execution_id === 'string' && r.execution_id
-        ? r.execution_id
-        : (typeof r.id === 'string' ? r.id : '')
-      return execId ? t('aiTool.workflowTriggeredShort', { exec: execId }) : ''
-    }
-    default: return ''
-  }
-}
 </script>
 
 <style scoped>
diff --git a/src/composables/ai/useToolCard.ts b/src/composables/ai/useToolCard.ts
new file mode 100644
index 0000000..e9ffca7
--- /dev/null
+++ b/src/composables/ai/useToolCard.ts
@@ -0,0 +1,502 @@
+//! ToolCard 纯函数与常量 —— 工具卡片渲染逻辑层
+//!
+//! 职责:
+//! - 工具结果 JSON 解析(parseResult)与人类可读摘要格式化(formatToolResult/toolResultSummary)
+//! - 工具元数据(图标/分类/显示名片段/路径短化/字节格式化)
+//! - 审批参数键值转换(toolArgsEntries/formatArgValue/argLabel)
+//! - run_command 输出合并与截断(combineOutputs/combineAndTruncateLines)
+//! - 工具失败语义检测(isToolFailure)
+//!
+//! 抽离自 ToolCard.vue(原 <script lang="ts"> 模块级纯函数 + ToolResult 类型 + 图标常量,
+//! 及原 <script setup> 中仅依赖 i18n.t 的 toolResultSummary)。零行为变更,纯搬迁。
+//!
+//! 设计:
+//! - composable 内非组件上下文(无 setup),用 vue-i18n 全局实例的 t(对齐 aiShared.ts/
+//!   useAiEvents.ts/useAiStream.ts 等同款约定),而非 useI18n()。
+//! - 全部为纯函数(入参出参,无响应式无副作用),供 ToolCard.vue 模板/setup 直接 import 调用。
+//! - store 依赖的工具显示名(toolDisplayName/displayArgValue/projectNameById/taskNameById)
+//!   仍留 ToolCard.vue setup(耦合 projectStore,非纯函数)。
+//!
+//! 耦合:
+//! - i18n.global.t(翻译)
+//! - AiToolCallInfo(@/api/types)
+
+import i18n from '@/i18n'
+import type { AiToolCallInfo } from '@/api/types'
+
+// composable 内非组件上下文(无 setup),用 vue-i18n 全局实例的 t 而非 useI18n()。
+const t = ((i18n as any).global.t as (k: string, p?: Record<string, unknown>) => string).bind((i18n as any).global)
+
+/** 工具结果 JSON 已知字段(全可选;list_* 运行时返回数组,靠 Array.isArray 区分) */
+export interface ToolResult {
+  path?: string
+  pattern?: string
+  from?: string
+  to?: string
+  content?: string
+  lines?: number | null
+  size?: number | null
+  bytes_written?: number
+  new_size?: number
+  bytes_moved?: number
+  entries?: Array<{ name: string; type: string; size?: number; depth?: number }>
+  name?: string
+  title?: string
+  field?: string
+  id?: string
+  status?: string
+  stack?: string
+  bound?: boolean
+  deleted?: boolean
+  restored?: boolean
+  purged?: boolean
+  updated?: boolean
+  changed?: boolean
+  renamed?: boolean
+  exists?: boolean
+  is_binary?: boolean
+  is_dir?: boolean
+  permanent?: boolean
+  backed_up?: boolean
+  size_diff?: number
+  exit_code?: number
+  duration_ms?: number
+  stdout?: string
+  stderr?: string
+  truncated?: boolean
+  results?: Array<{ path?: string; size?: number }>
+  total?: number
+  has_more?: boolean
+  warning?: string
+  review_rounds?: number
+  // UX-260618-05~12:补全后端返回前端消费的字段(review_rounds/truncated/bytes_moved/has_more/total/entries 已存在)
+  task_id?: string
+  execution_id?: string
+  target_status?: string
+  note?: string
+  diff?: string
+  matches_found?: number
+  backup_path?: string
+  returned_lines?: number
+  items?: Array<Record<string, unknown>>
+  modified?: number | null
+  old_size?: number | null
+  encoding?: string
+  cross_volume?: boolean
+}
+
+/** 内联 SVG 图标字符串(经 v-html 注入,常量安全;图标库改造见决策记录) */
+export const dirIcon = '<svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8"><path d="M22 19a2 2 0 01-2 2H4a2 2 0 01-2-2V5a2 2 0 012-2h5l2 3h9a2 2 0 012 2z"/></svg>'
+export const fileIcon = '<svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8"><path d="M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z"/><polyline points="14 2 14 8 20 8"/></svg>'
+
+/** 默认保持展开:执行中/待审批/已拒绝/write_file——折叠无收益 */
+export function shouldKeepOpen(tc: AiToolCallInfo): boolean {
+  return tc.status === 'running'
+    || tc.status === 'pending_approval'
+    || tc.status === 'rejected'
+    || tc.name === 'write_file'
+}
+
+/**
+ * UX-260616-01: 工具执行失败检测(completed 状态下的失败语义)。
+ *
+ * 后端 AR-6:Low 风险工具失败不 emit AiError,改 emit AiToolCallCompleted(result=错误),
+ * 故失败工具 status 仍为 'completed',与成功工具视觉同态(原绿色边框+绿色结果框)。
+ * 此函数区分两类失败:
+ *  - run_command exit_code≠0:结果 JSON 合法,parseResult 命中,看 exit_code 判失败
+ *  - 通用工具失败:AR-6 路径后端塞 serde_json::Value::String("工具 X 执行失败: ..."),
+ *    前端 parseResult 返回 null(非 JSON 对象)→ 走 raw 文本兜底,无结构信号
+ *    此时按行首前缀 "执行失败"/"Error:"/"Failed:" 启发式判定(对齐后端 err_msg 格式,
+ *    行首锚定避免误伤含这些子串的正常产出,见 UX-260617-18)。
+ *
+ * 注意:status==='rejected'(用户拒绝)走独立分支,不算工具失败,不进此函数。
+ * running/pending_approval 自然 false(无 result 或 result 未稳定)。
+ */
+export function isToolFailure(tc: AiToolCallInfo): boolean {
+  if (tc.status !== 'completed') return false
+  // run_command:结构化 exit_code 判定(可靠)
+  if (tc.name === 'run_command') {
+    const r = parseResult(tc.result)
+    if (r && typeof r.exit_code === 'number') return r.exit_code !== 0
+    // run_command 但无 exit_code(异常)→ 保守判失败
+    if (r) return true
+  }
+  // 通用工具:parseResult 返回 null(非 JSON,AR-6 错误字符串路径)→ 看文本前缀
+  if (!parseResult(tc.result)) {
+    const raw = typeof tc.result === 'string' ? tc.result : ''
+    if (!raw) return false
+    // UX-260617-18:收窄为行首锚定(原 /执行失败|failed|error[:\s]/i 匹配任意位置的子串,
+    // 误伤 search_files 命中 error.log / run_command stderr 含 "warning" 等正常产出)。
+    // 仅当某行以「执行失败」(中文 err_msg 前缀)/「Error:」/「Failed:」开头才判失败。
+    return /^(执行失败|Error:|Failed:)/m.test(raw)
+  }
+  return false
+}
+
+export function formatToolName(name: string): string {
+  if (!name) return ''
+  return name.replace(/_/g, ' ').replace(/\b\w/g, c => c.toUpperCase())
+}
+
+/** run_command 命令首行截断(头部展示;多行命令取首行,超长省略) */
+export function shortCmd(cmd: string, max = 48): string {
+  const firstLine = cmd.split('\n')[0].replace(/\s+/g, ' ').trim()
+  return firstLine.length > max ? firstLine.slice(0, max) + '…' : firstLine
+}
+
+export function formatJson(data: unknown): string {
+  try {
+    return JSON.stringify(data, null, 2)
+  } catch {
+    return String(data)
+  }
+}
+
+/** 审批参数 key → 友好标签映射(动态 i18n);未命中回退原 key */
+export function argLabel(key: string): string {
+  const map: Record<string, string> = {
+    id: t('aiTool.argLabel.id'),
+    project_id: t('aiTool.argLabel.projectId'),
+    name: t('aiTool.argLabel.name'),
+    title: t('aiTool.argLabel.title'),
+    description: t('aiTool.argLabel.description'),
+    field: t('aiTool.argLabel.field'),
+    value: t('aiTool.argLabel.value'),
+    path: t('aiTool.argLabel.path'),
+    priority: t('aiTool.argLabel.priority'),
+    tags: t('aiTool.argLabel.tags'),
+    source: t('aiTool.argLabel.source'),
+  }
+  return map[key] || key
+}
+
+/** 审批参数转键值对数组(非对象/空时返回空数组,防 args 非 object 时 v-for 报错) */
+export function toolArgsEntries(args: unknown): Array<{ key: string; label: string; val: unknown }> {
+  if (args && typeof args === 'object' && !Array.isArray(args)) {
+    return Object.entries(args as Record<string, unknown>).map(([key, val]) => ({
+      key,
+      label: argLabel(key),
+      val,
+    }))
+  }
+  return []
+}
+
+/** 格式化单个审批参数值:字符串直接展示(超长截断),对象/数组 JSON 化后截断 */
+export function formatArgValue(val: unknown): string {
+  if (val == null) return ''
+  if (typeof val === 'string') return val.length > 300 ? val.slice(0, 300) + '…' : val
+  if (typeof val === 'object') {
+    try {
+      const s = JSON.stringify(val)
+      return s.length > 300 ? s.slice(0, 300) + '…' : s
+    } catch {
+      return String(val)
+    }
+  }
+  return String(val)
+}
+
+/** 安全解析工具结果 JSON;list_* 运行时是数组,类型归 ToolResult 靠 Array.isArray 区分 */
+export function parseResult(result: unknown): ToolResult | null {
+  if (!result) return null
+  try {
+    return (typeof result === 'string' ? JSON.parse(result) : result) as ToolResult
+  } catch {
+    return null
+  }
+}
+
+export function toolCategory(name: string): string {
+  if (!name) return 'default'
+  if (name === 'read_file') return 'file-read'
+  if (name === 'write_file') return 'file-write'
+  if (name === 'list_directory') return 'dir'
+  if (name.includes('create')) return 'create'
+  if (name.includes('delete')) return 'delete'
+  if (name.includes('list')) return 'list'
+  return 'default'
+}
+
+export function toolIcon(name: string): string {
+  if (name === 'read_file') return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z"/><polyline points="14 2 14 8 20 8"/><line x1="16" y1="13" x2="8" y2="13"/><line x1="16" y1="17" x2="8" y2="17"/></svg>'
+  if (name === 'write_file') return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M11 4H4a2 2 0 00-2 2v14a2 2 0 002 2h14a2 2 0 002-2v-7"/><path d="M18.5 2.5a2.121 2.121 0 013 3L12 15l-4 1 1-4 9.5-9.5z"/></svg>'
+  if (name === 'list_directory') return dirIcon
+  if (name.includes('create')) return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>'
+  if (name.includes('delete')) return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="3 6 5 6 21 6"/><path d="M19 6v14a2 2 0 01-2 2H7a2 2 0 01-2-2V6m3 0V4a2 2 0 012-2h4a2 2 0 012 2v2"/></svg>'
+  return '<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>'
+}
+
+export function shortPath(p: string): string {
+  const parts = p.replace(/\\/g, '/').split('/')
+  return parts.length <= 2 ? p : '.../' + parts.slice(-2).join('/')
+}
+
+/** 格式化字节数(兜底:undefined/null/负/NaN/Infinity 统一降级为 '0 B',防渲染异常) */
+export function formatBytes(bytes: number | undefined | null): string {
+  if (typeof bytes !== 'number' || !Number.isFinite(bytes) || bytes <= 0) return '0 B'
+  if (bytes < 1024) return bytes + ' B'
+  if (bytes < 1048576) return (bytes / 1024).toFixed(1) + ' KB'
+  return (bytes / 1048576).toFixed(1) + ' MB'
+}
+
+/** 从工具 args(unknown)中安全取字符串字段;非对象/字段非 string 时返回空串 */
+export function argString(args: unknown, key: string): string {
+  if (args && typeof args === 'object' && !Array.isArray(args)) {
+    const v = (args as Record<string, unknown>)[key]
+    return typeof v === 'string' ? v : ''
+  }
+  return ''
+}
+
+/** size_diff 数字 → "+N"/"-N"/"+0" 字符串(负数补减号,正数补加号) */
+export function formatSizeDiff(diff: number | undefined | null): string {
+  const n = typeof diff === 'number' ? diff : 0
+  return n >= 0 ? `+${n}` : `${n}`
+}
+
+/** SW-260618-19: 合并 stdout/stderr(空串跳过),供 cmdOutput 展开 + combineAndTruncateLines 截断共享 DRY */
+export function combineOutputs(stdout: string | undefined, stderr: string | undefined): string {
+  const parts: string[] = []
+  if (stdout) parts.push(stdout)
+  if (stderr) parts.push(stderr)
+  return parts.join('\n')
+}
+
+/** 合并 stdout/stderr 取前 N 行,返回截断后文本 + 是否截断 + 总行数(合并复用 combineOutputs) */
+export function combineAndTruncateLines(stdout: string | undefined, stderr: string | undefined, maxLines: number): { text: string; truncated: boolean; total: number } {
+  const combined = combineOutputs(stdout, stderr)
+  if (!combined) return { text: '', truncated: false, total: 0 }
+  const allLines = combined.split('\n')
+  const total = allLines.length
+  if (total <= maxLines) {
+    return { text: combined, truncated: false, total }
+  }
+  // 取前 N 行 + 省略提示
+  return { text: allLines.slice(0, maxLines).join('\n'), truncated: true, total }
+}
+
+/**
+ * run_command 结果摘要:exit_code 标题 + stdout/stderr 前 N 行 + 总行数提示(截断,不全量显示)。
+ * 输出可能很大(编译/find/cat 大文件),仅显示前若干行 + 总行数提示,防撑爆卡片。
+ */
+export function formatCommandResult(r: ToolResult): string {
+  const code = typeof r.exit_code === 'number' ? r.exit_code : -1
+  const ms = typeof r.duration_ms === 'number' ? r.duration_ms : 0
+  const head = code === 0
+    ? t('aiTool.commandOk', { ms })
+    : t('aiTool.commandFailed', { code })
+  // 合并 stdout + stderr(实际 stderr 通常含报错),各自取前若干行
+  const MAX_LINES = 20
+  const out = combineAndTruncateLines(r.stdout, r.stderr, MAX_LINES)
+  const parts = [head]
+  if (out.text) {
+    parts.push(out.text)
+    if (out.truncated) {
+      parts.push(t('aiTool.commandOutputLines', { n: out.total }))
+    }
+  }
+  return parts.join('\n')
+}
+
+/** file_info 结果摘要:存在性 + 大小 + 行数(文本)/二进制/目录 标注 */
+export function formatFileInfoResult(r: ToolResult): string {
+  if (r.exists === false) {
+    return t('aiTool.fileInfoMissing', { path: r.path || '' })
+  }
+  let base = t('aiTool.fileInfoSize', { path: r.path || '', size: formatBytes(typeof r.size === 'number' ? r.size : 0) })
+  const extras: string[] = []
+  // UX-260618-12: file_info modified 时间(epoch_ms → 客户端 toLocaleString)
+  if (typeof r.modified === 'number' && r.modified > 0) {
+    extras.push(t('aiTool.fileInfoModified', { time: new Date(r.modified).toLocaleString() }))
+  }
+  if (r.is_dir) {
+    extras.push(t('aiTool.fileInfoDir'))
+  } else {
+    if (typeof r.lines === 'number') {
+      extras.push(t('aiTool.fileInfoLines', { n: r.lines }))
+    }
+    if (r.is_binary) {
+      extras.push(t('aiTool.fileInfoBinary'))
+    }
+  }
+  return base + extras.join('')
+}
+
+/**
+ * 通用工具结果格式化(非文件类工具)。
+ * UX-260616-04:统一 switch 覆盖全部工具产出人类可读摘要,不再走裸 JSON 兜底。
+ * read_file/list_directory/write_file 有模板特化分支,不进此函数。
+ */
+export function formatToolResult(tc: AiToolCallInfo): string {
+  const r = parseResult(tc.result)
+  if (!r) {
+    // 非 JSON(纯文本:审批占位/错误/拒绝)→ 原样显示,审批占位时补拟执行参数避免空白
+    const raw = typeof tc.result === 'string' ? tc.result : ''
+    if (raw && tc.args && typeof tc.args === 'object') {
+      const a = tc.args as Record<string, unknown>
+      const detail = typeof a.title === 'string' ? a.title
+        : typeof a.name === 'string' ? a.name
+        : typeof a.path === 'string' ? a.path
+        : ''
+      if (detail) return t('aiTool.resultDetail', { raw, detail })
+    }
+    return raw
+  }
+  switch (tc.name) {
+    case 'list_projects':
+    case 'list_tasks':
+    case 'list_ideas':
+    case 'list_trash': {
+      // UX-260618-12: list_* 后端返 {items,total,has_more} 对象(非数组),渲染结构化列表替代裸 JSON
+      const items = Array.isArray(r) ? r : (Array.isArray(r.items) ? r.items : [])
+      const total = typeof r.total === 'number' ? r.total : items.length
+      const head = tc.name === 'list_projects' ? t('aiTool.projectCount', { n: total })
+        : tc.name === 'list_tasks' ? t('aiTool.taskCount', { n: total })
+        : tc.name === 'list_ideas' ? t('aiTool.ideaCount', { n: total })
+        : t('aiTool.trashCount', { n: total })
+      const lines = items.slice(0, 10).map((it: Record<string, unknown>) => {
+        const label = typeof it.name === 'string' ? it.name
+          : typeof it.title === 'string' ? it.title
+          : typeof it.id === 'string' ? it.id
+          : ''
+        const status = typeof it.status === 'string' ? ` [${it.status}]` : ''
+        const stack = typeof it.stack === 'string' ? ` (${it.stack})` : ''
+        return label ? `- ${label}${status}${stack}` : ''
+      }).filter(Boolean)
+      const parts = [head, ...lines]
+      if (r.has_more) parts.push(t('aiTool.listHasMore', { n: items.length }))
+      return parts.join('\n')
+    }
+    case 'write_file':
+      return `${r.path} (${formatBytes(r.bytes_written)})`
+    case 'update_task':
+      return r.updated !== false
+        ? t('aiTool.updatedTaskField', { id: r.id || '', field: r.field || '' })
+        : t('aiTool.updated')
+    case 'advance_task':
+      // UX-260618-09: review_rounds>0 显退回累加轮数,=0 回退原文案(首推无噪音)
+      // UX-260618-14: 后端返 TaskRecord(含 title),优先显 title,无则回退 id(防裸 UUID)
+      return typeof r.review_rounds === 'number' && r.review_rounds > 0
+        ? t('aiTool.advancedTaskWithRounds', { title: r.title || r.id || '', status: r.status || '', n: r.review_rounds })
+        : t('aiTool.advancedTask', { title: r.title || r.id || '', status: r.status || '' })
+    case 'delete_task':
+      return r.deleted ? t('aiTool.deleted') : t('aiTool.deleteIneffective')
+    case 'delete_file':
+      return r.permanent
+        ? t('aiTool.deleteFilePermanent', { path: r.path || '' })
+        : t('aiTool.deleteFileSoft', { path: r.path || '', backup_path: r.backup_path || '' })
+    case 'run_command':
+      return formatCommandResult(r)
+    case 'patch_file':
+      return r.changed === false
+        ? t('aiTool.patchedNoChange', { path: r.path || '' })
+        : t('aiTool.patchedFile', { path: r.path || '', diff: formatSizeDiff(r.size_diff) })
+    case 'append_file':
+      return t('aiTool.appendedTo', { path: r.path || '', bytes: formatBytes(r.bytes_written) })
+    case 'rename_file':
+      return r.renamed
+        ? (r.cross_volume
+            ? t('aiTool.renamedCrossVolume', { from: r.from || '', to: r.to || '', bytes: formatBytes(r.bytes_moved) })
+            : t('aiTool.renamedWithBytes', { from: r.from || '', to: r.to || '', bytes: formatBytes(r.bytes_moved) }))
+        : formatJson(r)
+    case 'search_files': {
+      const n = typeof r.total === 'number' ? r.total : (Array.isArray(r.results) ? r.results.length : 0)
+      return t('aiTool.foundN', { n })
+    }
+    case 'file_info':
+      return formatFileInfoResult(r)
+    case 'bind_directory':
+      return r.bound
+        ? t('aiTool.boundDir', { path: r.path || '', stack: r.stack || '' })
+        : formatJson(r)
+    case 'run_workflow': {
+      // UX-260618-05: 后端返 {task_id,target_status,execution_id,status,note},显 execution_id 对应执行实例
+      const execId = typeof r.execution_id === 'string' && r.execution_id
+        ? r.execution_id
+        : (typeof r.id === 'string' ? r.id : '')
+      if (!execId) return formatJson(r)
+      return t('aiTool.workflowTriggered', { id: r.task_id || '', status: r.target_status || '', exec: execId })
+    }
+    default:
+      return formatJson(r)
+  }
+}
+
+/**
+ * completed 工具结果的一句话摘要(折叠态 header 也能看到,避免光秃秃)。
+ * UX-260616-04:覆盖范围与 formatToolResult 对齐(header+body 一致);
+ * read_file/list_directory/write_file 有模板特化分支,header 摘要仍显示关键计数。
+ */
+export function toolResultSummary(tc: AiToolCallInfo): string {
+  if (tc.status !== 'completed') return ''
+  const r = parseResult(tc.result)
+  if (!r) return ''
+  switch (tc.name) {
+    case 'list_tasks':
+    case 'list_projects':
+    case 'list_ideas':
+    case 'list_trash': {
+      // UX-260618-10/12: 后端返 {items,total,has_more} 对象(非数组),原 Array.isArray(r) 恒 false→折叠态无计数
+      const n = Array.isArray(r) ? r.length
+        : (typeof r.total === 'number' ? r.total
+          : (Array.isArray(r.items) ? r.items.length : 0))
+      if (!n) return ''
+      const key = tc.name === 'list_projects' ? 'projectCount'
+        : tc.name === 'list_tasks' ? 'taskCount'
+        : tc.name === 'list_ideas' ? 'ideaCount'
+        : 'trashCount'
+      return t(`aiTool.${key}`, { n })
+    }
+    case 'create_project': return r.name ? t('aiTool.createdWithName', { name: r.name }) : t('aiTool.created')
+    case 'create_idea':
+    case 'create_task': return r.title ? t('aiTool.createdWithName', { name: r.title }) : t('aiTool.created')
+    case 'update_project': return r.field ? t('aiTool.updatedField', { field: r.field }) : t('aiTool.updated')
+    case 'update_task': return r.updated !== false
+      ? t('aiTool.updatedTaskField', { id: r.id || '', field: r.field || '' })
+      : t('aiTool.updated')
+    case 'advance_task': return typeof r.review_rounds === 'number' && r.review_rounds > 0
+      // UX-260618-14: 优先显 title(后端返 TaskRecord),无则回退 id,防裸 UUID
+      ? t('aiTool.advancedTaskWithRounds', { title: r.title || r.id || '', status: r.status || '', n: r.review_rounds })
+      : t('aiTool.advancedTask', { title: r.title || r.id || '', status: r.status || '' })
+    case 'delete_project':
+    case 'delete_task': return r.deleted ? t('aiTool.deleted') : t('aiTool.deleteIneffective')
+    case 'delete_file': return r.permanent
+      ? t('aiTool.deleteFilePermanent', { path: r.path || '' })
+      : t('aiTool.deleteFileSoft', { path: r.path || '', backup_path: r.backup_path || '' })
+    case 'restore_project': return r.restored ? t('aiTool.restored') : t('aiTool.restoreIneffective')
+    case 'purge_project': return r.purged ? t('aiTool.purged') : t('aiTool.purgeIneffective')
+    case 'run_command': {
+      const code = typeof r.exit_code === 'number' ? r.exit_code : -1
+      const ms = typeof r.duration_ms === 'number' ? r.duration_ms : 0
+      return code === 0 ? t('aiTool.commandOk', { ms }) : t('aiTool.commandFailed', { code })
+    }
+    case 'patch_file': return r.changed === false
+      ? t('aiTool.patchedNoChange', { path: r.path || '' })
+      : t('aiTool.patchedFile', { path: r.path || '', diff: formatSizeDiff(r.size_diff) })
+    case 'append_file': return t('aiTool.appendedTo', { path: r.path || '', bytes: formatBytes(r.bytes_written) })
+    case 'rename_file': return r.renamed
+      ? (r.cross_volume
+          ? t('aiTool.renamedCrossVolume', { from: r.from || '', to: r.to || '', bytes: formatBytes(r.bytes_moved) })
+          : t('aiTool.renamedWithBytes', { from: r.from || '', to: r.to || '', bytes: formatBytes(r.bytes_moved) }))
+      : ''
+    case 'search_files': {
+      const n = typeof r.total === 'number' ? r.total : (Array.isArray(r.results) ? r.results.length : 0)
+      return t('aiTool.foundN', { n })
+    }
+    case 'file_info': return r.exists === false
+      ? t('aiTool.fileInfoMissing', { path: r.path || '' })
+      : t('aiTool.fileInfoSize', { path: r.path || '', size: formatBytes(typeof r.size === 'number' ? r.size : 0) })
+    case 'bind_directory': return r.bound
+      ? t('aiTool.boundDir', { path: r.path || '', stack: r.stack || '' })
+      : ''
+    case 'run_workflow': {
+      // UX-260618-05: header 副标题显 execution_id 概要(原 workflowHint「请到工作流页面运行」误导——工作流已触发)
+      const execId = typeof r.execution_id === 'string' && r.execution_id
+        ? r.execution_id
+        : (typeof r.id === 'string' ? r.id : '')
+      return execId ? t('aiTool.workflowTriggeredShort', { exec: execId }) : ''
+    }
+    default: return ''
+  }
+}