feat(AI接入): 内置 MCP 服务与个人 Token 管理

- 新增 /api/mcp (Streamable HTTP) 与 41 个工具: 项目/看板列/任务/清单/打卡; - 新增 McpToken 模型与迁移, DB 仅存 SHA-256 哈希, token 绑定用户; - 新增 /api/mcp-tokens 增删改查, 支持独立命名 (如 R1); - 「我的」页新增 AI 接入 (MCP) 区块: 地址复制/新建/一次性展示/删除; - 补充 docs/MCP.md 与样式

server/mcp/tools/checkin.js

@@ -0,0 +1,262 @@
+// MCP 工具: 打卡 (打卡项 / 打卡记录)
+import { z } from 'zod'
+import { prisma } from '../../db.js'
+import { toDateStr, addDays, periodRange, PERIODS } from '../../checkin/period.js'
+import { tool, reqStr } from '../helpers.js'
+
+const BACKFILL_DAYS = 7
+const DATE_RE = /^\d{4}-\d{2}-\d{2}$/
+
+function normDate(v) {
+  const s = String(v || '')
+  return DATE_RE.test(s) ? s : toDateStr()
+}
+
+function groupCounts(records) {
+  const map = new Map()
+  for (const r of records) {
+    if (!map.has(r.habitId)) map.set(r.habitId, new Map())
+    const byDate = map.get(r.habitId)
+    byDate.set(r.date, (byDate.get(r.date) || 0) + 1)
+  }
+  return map
+}
+
+function sumRange(byDate, start, end) {
+  let n = 0
+  let cursor = start
+  while (cursor <= end) {
+    n += byDate.get(cursor) || 0
+    cursor = addDays(cursor, 1)
+  }
+  return n
+}
+
+export function registerCheckinTools(server, ctx) {
+  const userId = ctx.userId
+
+  tool(server, 'list_habits', {
+    title: '查询打卡项',
+    description: '列出打卡项及其指定日期所在周期的完成进度; 默认只返回未归档项。',
+    inputSchema: {
+      date: z.string().optional().describe('日期 YYYY-MM-DD, 默认今天'),
+      includeArchived: z.boolean().optional().describe('是否包含已归档打卡项, 默认 false'),
+    },
+    annotations: { readOnlyHint: true },
+  }, async ({ date, includeArchived = false }) => {
+    const today = toDateStr()
+    const day = normDate(date)
+    const habits = await prisma.habit.findMany({
+      where: { userId, ...(includeArchived ? {} : { archived: false }) },
+      orderBy: [{ sortOrder: 'asc' }, { id: 'asc' }],
+    })
+    if (!habits.length) return { date: day, today, items: [] }
+
+    const ranges = new Map(habits.map((h) => [h.id, periodRange(h.period, day)]))
+    let min = null
+    let max = null
+    for (const r of ranges.values()) {
+      if (!min || r.start < min) min = r.start
+      if (!max || r.end > max) max = r.end
+    }
+    const records = await prisma.checkIn.findMany({
+      where: {
+        userId,
+        habitId: { in: habits.map((h) => h.id) },
+        date: { gte: min, lte: max },
+      },
+      select: { habitId: true, date: true },
+    })
+    const grouped = groupCounts(records)
+
+    const items = habits.map((h) => {
+      const range = ranges.get(h.id)
+      const byDate = grouped.get(h.id) || new Map()
+      const periodDone = sumRange(byDate, range.start, range.end)
+      const target = Math.max(1, h.target)
+      return {
+        ...h,
+        target,
+        periodStart: range.start,
+        periodEnd: range.end,
+        periodDone,
+        completed: periodDone >= target,
+        countOnDate: byDate.get(day) || 0,
+      }
+    })
+    return { date: day, today, items }
+  })
+
+  tool(server, 'create_habit', {
+    title: '新建打卡项',
+    description: '新建一个周期性打卡目标, 例如每天喝 8 杯水、每周运动 3 次。',
+    inputSchema: {
+      name: z.string().describe('打卡项名称, 最多 20 字'),
+      period: z.enum(PERIODS).optional().describe('周期: day/week/month/year, 默认 day'),
+      target: z.coerce.number().int().min(1).optional().describe('每周期目标次数, 默认 1'),
+      color: z.string().optional().describe('颜色, 默认 #1677ff'),
+      icon: z.string().optional().describe('图标 (emoji 或图标名)'),
+      note: z.string().optional().describe('备注'),
+    },
+  }, async ({ name, period = 'day', target = 1, color = '#1677ff', icon = '', note = '' }) => {
+    const cleanName = reqStr(name, '名称', 20)
+    if (!PERIODS.includes(period)) throw new Error('周期类型不合法')
+    const t = Math.floor(Number(target))
+    if (!Number.isFinite(t) || t < 1) throw new Error('目标次数需为 ≥1 的整数')
+
+    const last = await prisma.habit.findFirst({
+      where: { userId }, orderBy: { sortOrder: 'desc' }, select: { sortOrder: true },
+    })
+    const row = await prisma.habit.create({
+      data: {
+        userId,
+        name: cleanName,
+        period,
+        target: t,
+        color: String(color),
+        icon: String(icon),
+        note: String(note || ''),
+        sortOrder: (last?.sortOrder ?? -1) + 1,
+      },
+    })
+    return { item: row }
+  })
+
+  tool(server, 'update_habit', {
+    title: '修改打卡项',
+    description: '修改打卡项名称、周期、目标次数、颜色、图标、备注、归档状态或排序值。',
+    inputSchema: {
+      habitId: z.coerce.number().int().positive().describe('打卡项 ID'),
+      name: z.string().optional().describe('新名称, 最多 20 字'),
+      period: z.enum(PERIODS).optional().describe('新周期'),
+      target: z.coerce.number().int().min(1).optional().describe('新目标次数'),
+      color: z.string().optional().describe('新颜色'),
+      icon: z.string().optional().describe('新图标'),
+      note: z.string().optional().describe('新备注'),
+      archived: z.boolean().optional().describe('是否归档'),
+      sortOrder: z.coerce.number().int().optional().describe('排序值'),
+    },
+  }, async ({ habitId, name, period, target, color, icon, note, archived, sortOrder }) => {
+    const exist = await prisma.habit.findFirst({ where: { id: Number(habitId), userId } })
+    if (!exist) throw new Error('打卡项不存在')
+    const data = {}
+    if (name !== undefined) data.name = reqStr(name, '名称', 20)
+    if (period !== undefined) {
+      if (!PERIODS.includes(period)) throw new Error('周期类型不合法')
+      data.period = period
+    }
+    if (target !== undefined) {
+      const t = Math.floor(Number(target))
+      if (!Number.isFinite(t) || t < 1) throw new Error('目标次数需为 ≥1 的整数')
+      data.target = t
+    }
+    if (color !== undefined) data.color = String(color)
+    if (icon !== undefined) data.icon = String(icon)
+    if (note !== undefined) data.note = String(note)
+    if (archived !== undefined) data.archived = !!archived
+    if (sortOrder !== undefined) data.sortOrder = Number(sortOrder) || 0
+    const row = await prisma.habit.update({ where: { id: Number(habitId) }, data })
+    return { item: row }
+  })
+
+  tool(server, 'delete_habit', {
+    title: '删除打卡项',
+    description: '默认归档并保留历史记录; hard=true 时永久删除打卡项及其全部打卡记录。',
+    inputSchema: {
+      habitId: z.coerce.number().int().positive().describe('打卡项 ID'),
+      hard: z.boolean().optional().describe('true 永久删除, 默认 false 仅归档'),
+    },
+    annotations: { destructiveHint: true },
+  }, async ({ habitId, hard = false }) => {
+    const exist = await prisma.habit.findFirst({ where: { id: Number(habitId), userId } })
+    if (!exist) throw new Error('打卡项不存在')
+    if (hard) {
+      await prisma.checkIn.deleteMany({ where: { habitId: Number(habitId) } })
+      await prisma.habit.delete({ where: { id: Number(habitId) } })
+      return { ok: true, removed: true }
+    }
+    const row = await prisma.habit.update({
+      where: { id: Number(habitId) }, data: { archived: true },
+    })
+    return { ok: true, removed: false, item: row }
+  })
+
+  tool(server, 'reorder_habits', {
+    title: '打卡项排序',
+    description: '按传入的打卡项 ID 数组重排, 数组顺序即新顺序。',
+    inputSchema: {
+      ids: z.array(z.coerce.number().int().positive()).describe('打卡项 ID 的新顺序'),
+    },
+  }, async ({ ids }) => {
+    const uniq = [...new Set(ids.map(Number))]
+    if (!uniq.length) throw new Error('ids 不能为空')
+    if (uniq.length !== ids.length) throw new Error('ids 不能重复')
+    const rows = await prisma.habit.findMany({
+      where: { userId, id: { in: uniq } }, select: { id: true },
+    })
+    if (rows.length !== uniq.length) throw new Error('包含无效的打卡项')
+    await prisma.$transaction(
+      ids.map((hid, idx) => prisma.habit.update({
+        where: { id: Number(hid) }, data: { sortOrder: idx },
+      })),
+    )
+    return { ok: true, orderedIds: ids.map(Number) }
+  })
+
+  tool(server, 'check_habit', {
+    title: '打卡',
+    description: '为打卡项记录一次完成; 可为最近 7 天补打, 不能打未来日期。',
+    inputSchema: {
+      habitId: z.coerce.number().int().positive().describe('打卡项 ID'),
+      date: z.string().optional().describe('日期 YYYY-MM-DD, 默认今天'),
+      note: z.string().optional().describe('打卡备注, 最多 200 字'),
+    },
+  }, async ({ habitId, date, note }) => {
+    const habit = await prisma.habit.findFirst({ where: { id: Number(habitId), userId } })
+    if (!habit) throw new Error('打卡项不存在')
+
+    const today = toDateStr()
+    const day = normDate(date)
+    if (day > today) throw new Error('不能为未来日期打卡')
+    if (day < addDays(today, -BACKFILL_DAYS)) throw new Error(`最多只能补打最近 ${BACKFILL_DAYS} 天`)
+
+    const dayRecords = await prisma.checkIn.findMany({
+      where: { habitId: habit.id, date: day }, select: { seq: true },
+    })
+    const seq = dayRecords.reduce((m, r) => Math.max(m, r.seq), 0) + 1
+    const row = await prisma.checkIn.create({
+      data: {
+        habitId: habit.id,
+        userId,
+        date: day,
+        seq,
+        note: String(note || '').slice(0, 200),
+        source: day === today ? 'user' : 'backfill',
+      },
+    })
+    return { ok: true, date: day, seq, item: row }
+  })
+
+  tool(server, 'undo_habit_check', {
+    title: '撤销打卡',
+    description: '撤销指定日期所在周期内最近一次打卡记录。',
+    inputSchema: {
+      habitId: z.coerce.number().int().positive().describe('打卡项 ID'),
+      date: z.string().optional().describe('日期 YYYY-MM-DD, 默认今天'),
+    },
+    annotations: { destructiveHint: true },
+  }, async ({ habitId, date }) => {
+    const habit = await prisma.habit.findFirst({ where: { id: Number(habitId), userId } })
+    if (!habit) throw new Error('打卡项不存在')
+
+    const day = normDate(date)
+    const { start, end } = periodRange(habit.period, day)
+    const last = await prisma.checkIn.findFirst({
+      where: { habitId: habit.id, date: { gte: start, lte: end } },
+      orderBy: [{ date: 'desc' }, { seq: 'desc' }],
+    })
+    if (!last) throw new Error('本周期还没有打卡记录')
+    await prisma.checkIn.delete({ where: { id: last.id } })
+    return { ok: true, date: last.date, seq: last.seq }
+  })
+}

server/mcp/tools/checklists.js

@@ -0,0 +1,288 @@
+// MCP 工具: 检查清单 (清单 / 检查项)
+import { z } from 'zod'
+import { prisma } from '../../db.js'
+import { ensureBuiltin } from '../../routes/checklists.js'
+import { tool, reqStr } from '../helpers.js'
+
+const LIST_INCLUDE = { items: { orderBy: [{ sortOrder: 'asc' }, { id: 'asc' }] } }
+
+function withProgress(list) {
+  const items = list.items || []
+  const done = items.filter((i) => i.done).length
+  return {
+    ...list,
+    items,
+    total: items.length,
+    done,
+    percent: items.length ? done / items.length : 0,
+    completed: items.length > 0 && done === items.length,
+  }
+}
+
+async function requireList(listId, userId) {
+  const list = await prisma.checkList.findFirst({ where: { id: Number(listId), userId } })
+  if (!list) throw new Error('清单不存在')
+  return list
+}
+
+function normalizeSeedItems(items) {
+  return (Array.isArray(items) ? items : [])
+    .map((i) => (typeof i === 'string' ? { title: i } : i))
+    .map((i) => ({ title: String(i?.title || '').trim(), note: String(i?.note || '') }))
+    .filter((i) => i.title)
+}
+
+export function registerChecklistTools(server, ctx) {
+  const userId = ctx.userId
+
+  tool(server, 'list_checklists', {
+    title: '查询清单',
+    description: '列出当前用户的检查清单 (出差/回老家等), 含完成进度。',
+    inputSchema: {
+      archived: z.boolean().optional().describe('true 查询已归档清单, 默认 false'),
+    },
+    annotations: { readOnlyHint: true },
+  }, async ({ archived = false }) => {
+    const rows = await prisma.checkList.findMany({
+      where: { userId, archived: !!archived },
+      include: LIST_INCLUDE,
+      orderBy: [{ updatedAt: 'desc' }],
+    })
+    return { items: rows.map(withProgress) }
+  })
+
+  tool(server, 'get_checklist', {
+    title: '查询清单详情',
+    description: '读取单个清单及其全部检查项、完成进度。',
+    inputSchema: { listId: z.coerce.number().int().positive().describe('清单 ID') },
+    annotations: { readOnlyHint: true },
+  }, async ({ listId }) => {
+    const row = await prisma.checkList.findFirst({
+      where: { id: Number(listId), userId },
+      include: LIST_INCLUDE,
+    })
+    if (!row) throw new Error('清单不存在')
+    return { item: withProgress(row) }
+  })
+
+  tool(server, 'create_checklist', {
+    title: '新建清单',
+    description: '新建检查清单, 可直接带检查项, 也可从系统模板/自建模板复制 (传 templateId)。',
+    inputSchema: {
+      title: z.string().describe('清单名称'),
+      scene: z.string().optional().describe('场景, 如 出差 / 回老家'),
+      note: z.string().optional().describe('备注'),
+      items: z.array(z.union([
+        z.string(),
+        z.object({ title: z.string(), note: z.string().optional() }),
+      ])).optional().describe('初始检查项'),
+      templateId: z.coerce.number().int().positive().optional().describe('模板 ID, 在没有 items 时使用'),
+    },
+  }, async ({ title, scene = '', note = '', items = [], templateId }) => {
+    const cleanTitle = reqStr(title, '清单名称')
+    let seed = normalizeSeedItems(items)
+
+    if (!seed.length && templateId) {
+      await ensureBuiltin()
+      const tpl = await prisma.checkListTemplate.findFirst({
+        where: { id: Number(templateId), OR: [{ builtin: true }, { userId }] },
+      })
+      if (tpl && Array.isArray(tpl.items)) seed = normalizeSeedItems(tpl.items)
+    }
+
+    const row = await prisma.checkList.create({
+      data: {
+        userId,
+        title: cleanTitle,
+        scene: String(scene || ''),
+        note: String(note || ''),
+        items: { create: seed.map((i, idx) => ({ title: i.title, note: i.note, sortOrder: idx })) },
+      },
+      include: LIST_INCLUDE,
+    })
+    return { item: withProgress(row) }
+  })
+
+  tool(server, 'update_checklist', {
+    title: '修改清单',
+    description: '修改清单名称、场景、备注或归档状态。',
+    inputSchema: {
+      listId: z.coerce.number().int().positive().describe('清单 ID'),
+      title: z.string().optional().describe('新名称'),
+      scene: z.string().optional().describe('新场景'),
+      note: z.string().optional().describe('新备注'),
+      archived: z.boolean().optional().describe('是否归档'),
+    },
+  }, async ({ listId, title, scene, note, archived }) => {
+    await requireList(listId, userId)
+    const data = {}
+    if (title !== undefined) data.title = reqStr(title, '清单名称')
+    if (scene !== undefined) data.scene = String(scene)
+    if (note !== undefined) data.note = String(note)
+    if (archived !== undefined) data.archived = !!archived
+    const row = await prisma.checkList.update({
+      where: { id: Number(listId) }, data, include: LIST_INCLUDE,
+    })
+    return { item: withProgress(row) }
+  })
+
+  tool(server, 'delete_checklist', {
+    title: '删除清单',
+    description: '永久删除清单及其全部检查项。',
+    inputSchema: { listId: z.coerce.number().int().positive().describe('清单 ID') },
+    annotations: { destructiveHint: true },
+  }, async ({ listId }) => {
+    await requireList(listId, userId)
+    await prisma.checkListItem.deleteMany({ where: { listId: Number(listId) } })
+    await prisma.checkList.delete({ where: { id: Number(listId) } })
+    return { ok: true }
+  })
+
+  tool(server, 'duplicate_checklist', {
+    title: '复制清单',
+    description: '复制一份清单, 勾选状态重置。',
+    inputSchema: { listId: z.coerce.number().int().positive().describe('清单 ID') },
+  }, async ({ listId }) => {
+    const src = await prisma.checkList.findFirst({
+      where: { id: Number(listId), userId }, include: LIST_INCLUDE,
+    })
+    if (!src) throw new Error('清单不存在')
+    const row = await prisma.checkList.create({
+      data: {
+        userId,
+        title: src.title + ' 副本',
+        scene: src.scene,
+        note: src.note,
+        items: {
+          create: src.items.map((i, idx) => ({
+            title: i.title, note: i.note, done: false, sortOrder: idx,
+          })),
+        },
+      },
+      include: LIST_INCLUDE,
+    })
+    return { item: withProgress(row) }
+  })
+
+  tool(server, 'add_checklist_item', {
+    title: '添加检查项',
+    description: '在清单末尾添加一个检查项。',
+    inputSchema: {
+      listId: z.coerce.number().int().positive().describe('清单 ID'),
+      title: z.string().describe('检查项内容, 最多 40 字'),
+      note: z.string().optional().describe('备注'),
+    },
+  }, async ({ listId, title, note = '' }) => {
+    await requireList(listId, userId)
+    const cleanTitle = reqStr(title, '检查项', 40)
+    const max = await prisma.checkListItem.findFirst({
+      where: { listId: Number(listId) }, orderBy: { sortOrder: 'desc' },
+    })
+    const row = await prisma.checkListItem.create({
+      data: {
+        listId: Number(listId),
+        title: cleanTitle,
+        note: String(note || ''),
+        sortOrder: (max?.sortOrder ?? -1) + 1,
+      },
+    })
+    return { item: row }
+  })
+
+  tool(server, 'update_checklist_item', {
+    title: '修改检查项',
+    description: '修改检查项内容、备注、完成状态或排序值。',
+    inputSchema: {
+      itemId: z.coerce.number().int().positive().describe('检查项 ID'),
+      title: z.string().optional().describe('新内容, 最多 40 字'),
+      note: z.string().optional().describe('新备注'),
+      done: z.boolean().optional().describe('是否完成'),
+      sortOrder: z.coerce.number().int().optional().describe('排序值'),
+    },
+  }, async ({ itemId, title, note, done, sortOrder }) => {
+    const exist = await prisma.checkListItem.findFirst({
+      where: { id: Number(itemId), list: { userId } },
+    })
+    if (!exist) throw new Error('检查项不存在')
+    const data = {}
+    if (title !== undefined) data.title = reqStr(title, '检查项', 40)
+    if (note !== undefined) data.note = String(note)
+    if (sortOrder !== undefined) data.sortOrder = Number(sortOrder) || 0
+    if (done !== undefined) {
+      data.done = !!done
+      data.doneAt = done ? new Date() : null
+    }
+    const row = await prisma.checkListItem.update({ where: { id: Number(itemId) }, data })
+    return { item: row }
+  })
+
+  tool(server, 'delete_checklist_item', {
+    title: '删除检查项',
+    description: '永久删除一个检查项。',
+    inputSchema: { itemId: z.coerce.number().int().positive().describe('检查项 ID') },
+    annotations: { destructiveHint: true },
+  }, async ({ itemId }) => {
+    const exist = await prisma.checkListItem.findFirst({
+      where: { id: Number(itemId), list: { userId } },
+    })
+    if (!exist) throw new Error('检查项不存在')
+    await prisma.checkListItem.delete({ where: { id: Number(itemId) } })
+    return { ok: true }
+  })
+
+  tool(server, 'reorder_checklist_items', {
+    title: '检查项排序',
+    description: '按传入的检查项 ID 数组重排清单内检查项, 数组顺序即新顺序。',
+    inputSchema: {
+      listId: z.coerce.number().int().positive().describe('清单 ID'),
+      ids: z.array(z.coerce.number().int().positive()).describe('检查项 ID 的新顺序'),
+    },
+  }, async ({ listId, ids }) => {
+    await requireList(listId, userId)
+    const uniq = [...new Set(ids.map(Number))]
+    if (uniq.length !== ids.length) throw new Error('ids 不能重复')
+    const rows = await prisma.checkListItem.findMany({
+      where: { listId: Number(listId), id: { in: uniq } }, select: { id: true },
+    })
+    if (rows.length !== uniq.length) throw new Error('包含不属于该清单的检查项')
+    await prisma.$transaction(
+      ids.map((itemId, idx) => prisma.checkListItem.update({
+        where: { id: Number(itemId) }, data: { sortOrder: idx },
+      })),
+    )
+    return { ok: true, orderedIds: ids.map(Number) }
+  })
+
+  tool(server, 'check_all_checklist_items', {
+    title: '清单一键勾选',
+    description: '把清单内全部检查项设为完成或未完成。',
+    inputSchema: {
+      listId: z.coerce.number().int().positive().describe('清单 ID'),
+      done: z.boolean().describe('true 全部完成, false 全部取消'),
+    },
+  }, async ({ listId, done }) => {
+    await requireList(listId, userId)
+    await prisma.checkListItem.updateMany({
+      where: { listId: Number(listId) },
+      data: { done: !!done, doneAt: done ? new Date() : null },
+    })
+    const row = await prisma.checkList.findFirst({
+      where: { id: Number(listId) }, include: LIST_INCLUDE,
+    })
+    return { item: withProgress(row) }
+  })
+
+  tool(server, 'list_checklist_templates', {
+    title: '查询清单模板',
+    description: '列出系统预置和当前用户自建的清单模板, 可配合 create_checklist 使用。',
+    inputSchema: {},
+    annotations: { readOnlyHint: true },
+  }, async () => {
+    await ensureBuiltin()
+    const rows = await prisma.checkListTemplate.findMany({
+      where: { OR: [{ builtin: true }, { userId }] },
+      orderBy: [{ builtin: 'desc' }, { name: 'asc' }],
+    })
+    return { items: rows }
+  })
+}

server/mcp/tools/tasks.js

@@ -0,0 +1,804 @@
+// MCP 工具: 任务模块 (项目 / 看板列 / 任务)
+// 所有操作都以 token 绑定的用户身份执行, 复用任务域现有的权限与状态联动规则.
+import { z } from 'zod'
+import { prisma } from '../../db.js'
+import {
+  ensurePersonalProject, createDefaultColumns, normTaskKinds,
+  AUTO_ARCHIVE_OPTIONS, MAX_COLUMNS, DEFAULT_TASK_KINDS,
+} from '../../routes/projects.js'
+import { loadProjectForUser, loadTaskForUser, loadColumns, loadMemberIds } from '../../task-domain/access.js'
+import { resolveTaskWrite } from '../../task-domain/resolveStatus.js'
+import { copyTask } from '../../task-domain/copyTask.js'
+import {
+  genUuid, withUuid, withTaskNumber, normProjectCode, allocProjectCode,
+} from '../../task-domain/identity.js'
+import { tool, reqStr, parseMarkDate } from '../helpers.js'
+
+const MAX_NAME = 50
+const MAX_COLUMN_NAME = 20
+const STATUSES = ['todo', 'doing', 'done']
+const RETENTIONS = ['never', 'today', '3d', 'week', 'month', 'forever']
+
+const TASK_INCLUDE = {
+  column: true,
+  assignee: { select: { id: true, name: true } },
+  creator: { select: { id: true, name: true } },
+  members: { include: { user: { select: { id: true, name: true } } } },
+  tags: true,
+  children: {
+    where: { archived: false },
+    include: {
+      column: true,
+      assignee: { select: { id: true, name: true } },
+      members: { include: { user: { select: { id: true, name: true } } } },
+      tags: true,
+    },
+    orderBy: [{ sortOrder: 'asc' }, { id: 'asc' }],
+  },
+}
+
+function shapeTask(t) {
+  if (!t) return t
+  const out = {
+    ...t,
+    members: (t.members || []).map((m) => ({ userId: m.userId, name: m.user?.name })),
+    tags: (t.tags || []).map((tag) => tag.name),
+  }
+  if (Array.isArray(t.children)) out.children = t.children.map(shapeTask)
+  return out
+}
+
+function shapeProject(p) {
+  return {
+    id: p.id,
+    uuid: p.uuid,
+    code: p.code,
+    name: p.name,
+    ownerId: p.ownerId,
+    isPersonal: p.isPersonal,
+    archived: p.archived,
+    notes: Array.isArray(p.notes) ? p.notes : [],
+    taskKinds: normTaskKinds(p.taskKinds) || DEFAULT_TASK_KINDS,
+    autoArchive: p.autoArchive,
+    createdAt: p.createdAt,
+    updatedAt: p.updatedAt,
+    memberCount: p._count?.members,
+    taskCount: p._count?.tasks,
+  }
+}
+
+async function requireProject(projectId, userId) {
+  const project = await loadProjectForUser(projectId, userId)
+  if (!project) throw new Error('项目不存在或无权限')
+  return project
+}
+
+function normalizeNotes(notes) {
+  if (!Array.isArray(notes)) throw new Error('项目信息块格式非法')
+  return notes.slice(0, 50).map((n) => ({
+    title: String(n?.title ?? '').slice(0, 50),
+    content: String(n?.content ?? '').slice(0, 20000),
+  }))
+}
+
+// ---------- 项目 ----------
+
+function registerProjectTools(server, ctx) {
+  const userId = ctx.userId
+
+  tool(server, 'get_current_user', {
+    title: '查询当前用户',
+    description: '返回当前 MCP Token 绑定的用户信息, 用于确认操作身份。',
+    inputSchema: {},
+    annotations: { readOnlyHint: true },
+  }, async () => ({ user: ctx.user || { id: userId } }))
+
+  tool(server, 'list_projects', {
+    title: '查询项目',
+    description: '列出当前用户参与的全部项目 (含个人默认项目), 返回项目编号、名称、成员数、未归档任务数。',
+    inputSchema: {
+      includeArchived: z.boolean().optional().describe('是否包含已归档项目, 默认 false'),
+    },
+    annotations: { readOnlyHint: true },
+  }, async ({ includeArchived = false }) => {
+    await ensurePersonalProject(userId)
+    const rows = await prisma.project.findMany({
+      where: {
+        members: { some: { userId } },
+        ...(includeArchived ? {} : { archived: false }),
+      },
+      include: { _count: { select: { members: true, tasks: { where: { archived: false } } } } },
+      orderBy: [{ archived: 'asc' }, { updatedAt: 'desc' }],
+    })
+    return { items: rows.map(shapeProject) }
+  })
+
+  tool(server, 'get_project', {
+    title: '查询项目详情',
+    description: '读取单个项目的完整信息: 基本信息、成员、看板列、信息块。',
+    inputSchema: { projectId: z.coerce.number().int().positive().describe('项目 ID') },
+    annotations: { readOnlyHint: true },
+  }, async ({ projectId }) => {
+    const project = await requireProject(projectId, userId)
+    const [members, columns] = await Promise.all([
+      prisma.projectMember.findMany({
+        where: { projectId: project.id },
+        include: { user: { select: { id: true, name: true, email: true } } },
+        orderBy: { createdAt: 'asc' },
+      }),
+      loadColumns(project.id),
+    ])
+    return {
+      item: {
+        ...shapeProject(project),
+        members: members.map((m) => ({
+          userId: m.userId, name: m.user.name, email: m.user.email, permission: m.permission,
+        })),
+        columns,
+      },
+    }
+  })
+
+  tool(server, 'create_project', {
+    title: '新建项目',
+    description: '新建一个项目并自动创建默认看板列 (Plan/Doing/Action/Done), 创建者自动成为成员。',
+    inputSchema: {
+      name: z.string().describe('项目名称, 最多 50 字'),
+      code: z.string().optional().describe('项目短编号 2~8 位字母数字, 不填则按名称自动分配'),
+    },
+  }, async ({ name, code }) => {
+    const cleanName = reqStr(name, '项目名称', MAX_NAME)
+    let finalCode
+    if (code !== undefined && String(code).trim() !== '') {
+      finalCode = normProjectCode(code)
+      if (!finalCode) throw new Error('项目编号须为 2~8 位字母数字')
+      const dup = await prisma.project.findUnique({ where: { code: finalCode } })
+      if (dup) throw new Error(`项目编号 ${finalCode} 已被占用`)
+    } else {
+      finalCode = await allocProjectCode(cleanName)
+    }
+    const project = await prisma.project.create({
+      data: {
+        name: cleanName,
+        ownerId: userId,
+        isPersonal: false,
+        uuid: genUuid(),
+        code: finalCode,
+        members: { create: { uuid: genUuid(), userId } },
+      },
+    })
+    await createDefaultColumns(project.id)
+    return { item: shapeProject(project) }
+  })
+
+  tool(server, 'update_project', {
+    title: '修改项目',
+    description: '修改项目名称、短编号、归档状态、信息块、任务类型标签、自动归档档位。',
+    inputSchema: {
+      projectId: z.coerce.number().int().positive().describe('项目 ID'),
+      name: z.string().optional().describe('新项目名称, 最多 50 字'),
+      code: z.string().optional().describe('新项目短编号 2~8 位字母数字'),
+      archived: z.boolean().optional().describe('是否归档'),
+      notes: z.array(z.object({
+        title: z.string().optional(),
+        content: z.string().optional(),
+      })).optional().describe('项目信息块, 整体替换'),
+      taskKinds: z.array(z.string()).optional().describe('任务类型标签, 整体替换, 至少保留一个'),
+      autoArchive: z.enum(AUTO_ARCHIVE_OPTIONS).optional().describe('自动归档: 3d/1w/1m/never'),
+    },
+  }, async ({ projectId, name, code, archived, notes, taskKinds, autoArchive }) => {
+    const project = await requireProject(projectId, userId)
+    const data = {}
+    if (name !== undefined) data.name = reqStr(name, '项目名称', MAX_NAME)
+    if (code !== undefined) {
+      const c = normProjectCode(code)
+      if (!c) throw new Error('项目编号须为 2~8 位字母数字')
+      if (c !== project.code) {
+        const dup = await prisma.project.findUnique({ where: { code: c } })
+        if (dup) throw new Error(`项目编号 ${c} 已被占用`)
+        data.code = c
+      }
+    }
+    if (notes !== undefined) data.notes = normalizeNotes(notes)
+    if (taskKinds !== undefined) {
+      const kinds = normTaskKinds(taskKinds)
+      if (!kinds?.length) throw new Error('至少保留一个任务类型')
+      data.taskKinds = kinds
+    }
+    if (autoArchive !== undefined) data.autoArchive = autoArchive
+    if (archived !== undefined) data.archived = !!archived
+    const row = await prisma.project.update({ where: { id: project.id }, data })
+    return { item: shapeProject(row) }
+  })
+
+  tool(server, 'delete_project', {
+    title: '删除项目',
+    description: '删除项目及其全部看板列和任务。个人默认项目不可删除。',
+    inputSchema: { projectId: z.coerce.number().int().positive().describe('项目 ID') },
+    annotations: { destructiveHint: true },
+  }, async ({ projectId }) => {
+    const project = await requireProject(projectId, userId)
+    if (project.isPersonal) throw new Error('个人默认项目不可删除')
+    await prisma.project.delete({ where: { id: project.id } })
+    return { ok: true, deletedProjectId: project.id }
+  })
+
+  tool(server, 'add_project_member', {
+    title: '添加项目成员',
+    description: '按用户 ID 或邮箱把用户加入项目。个人默认项目不可添加成员。',
+    inputSchema: {
+      projectId: z.coerce.number().int().positive().describe('项目 ID'),
+      userId: z.coerce.number().int().positive().optional().describe('目标用户 ID'),
+      email: z.string().optional().describe('目标用户邮箱'),
+    },
+  }, async ({ projectId, userId: targetId, email }) => {
+    const project = await requireProject(projectId, userId)
+    if (project.isPersonal) throw new Error('个人默认项目不可添加成员')
+    if (!targetId && !email) throw new Error('userId 与 email 至少提供一个')
+
+    const target = targetId
+      ? await prisma.user.findUnique({ where: { id: Number(targetId) } })
+      : await prisma.user.findFirst({ where: { email: String(email).trim() } })
+    if (!target) throw new Error('用户不存在')
+
+    const exist = await prisma.projectMember.findUnique({
+      where: { projectId_userId: { projectId: project.id, userId: target.id } },
+    })
+    if (exist) throw new Error('该用户已是项目成员')
+
+    await prisma.projectMember.create({
+      data: { uuid: genUuid(), projectId: project.id, userId: target.id },
+    })
+    return { ok: true, member: { userId: target.id, name: target.name, email: target.email } }
+  })
+
+  tool(server, 'remove_project_member', {
+    title: '移除项目成员',
+    description: '把成员移出项目; 成员本人也可用此工具退出项目。个人默认项目不可移除成员。',
+    inputSchema: {
+      projectId: z.coerce.number().int().positive().describe('项目 ID'),
+      userId: z.coerce.number().int().positive().describe('要移除的用户 ID'),
+    },
+    annotations: { destructiveHint: true },
+  }, async ({ projectId, userId: targetId }) => {
+    const project = await requireProject(projectId, userId)
+    if (project.isPersonal) throw new Error('个人默认项目不可移除成员')
+    const target = Number(targetId)
+    if (target !== userId && project.ownerId !== userId) {
+      throw new Error('只能移除自己，或由创建人移除他人')
+    }
+    await prisma.projectMember.deleteMany({ where: { projectId: project.id, userId: target } })
+    return { ok: true, removedUserId: target }
+  })
+}
+
+// ---------- 看板列 ----------
+
+function registerColumnTools(server, ctx) {
+  const userId = ctx.userId
+
+  tool(server, 'list_columns', {
+    title: '查询看板列',
+    description: '列出项目全部看板列 (按显示顺序), 含绑定状态与完成保留选项。',
+    inputSchema: { projectId: z.coerce.number().int().positive().describe('项目 ID') },
+    annotations: { readOnlyHint: true },
+  }, async ({ projectId }) => {
+    const project = await requireProject(projectId, userId)
+    return { items: await loadColumns(project.id) }
+  })
+
+  tool(server, 'create_column', {
+    title: '新建看板列',
+    description: `在项目末尾新建看板列, 最多 ${MAX_COLUMNS} 列。`,
+    inputSchema: {
+      projectId: z.coerce.number().int().positive().describe('项目 ID'),
+      name: z.string().describe('列名, 最多 20 字'),
+      boundStatus: z.enum(STATUSES).nullable().optional().describe('绑定任务状态 todo/doing/done, null 表示不联动'),
+      retention: z.enum(RETENTIONS).optional().describe('完成保留选项, 默认 forever'),
+    },
+  }, async ({ projectId, name, boundStatus = null, retention = 'forever' }) => {
+    const project = await requireProject(projectId, userId)
+    const cleanName = reqStr(name, '列名', MAX_COLUMN_NAME)
+    const cols = await loadColumns(project.id)
+    if (cols.length >= MAX_COLUMNS) throw new Error(`最多 ${MAX_COLUMNS} 列`)
+    if (cols.some((c) => c.name === cleanName)) throw new Error('列名已存在')
+    if (boundStatus !== null && !STATUSES.includes(boundStatus)) throw new Error('绑定状态取值非法')
+    if (!RETENTIONS.includes(retention)) throw new Error('保留选项取值非法')
+
+    const row = await prisma.boardColumn.create({
+      data: {
+        projectId: project.id,
+        uuid: genUuid(),
+        name: cleanName,
+        sortOrder: cols.length ? Math.max(...cols.map((c) => c.sortOrder)) + 1 : 0,
+        boundStatus,
+        retention,
+      },
+    })
+    return { item: row }
+  })
+
+  tool(server, 'update_column', {
+    title: '修改看板列',
+    description: '修改列名、绑定状态或完成保留选项。',
+    inputSchema: {
+      columnId: z.coerce.number().int().positive().describe('看板列 ID'),
+      name: z.string().optional().describe('新列名, 最多 20 字'),
+      boundStatus: z.enum(STATUSES).nullable().optional().describe('绑定任务状态, null 表示取消绑定'),
+      retention: z.enum(RETENTIONS).optional().describe('完成保留选项'),
+    },
+  }, async ({ columnId, name, boundStatus, retention }) => {
+    const col = await prisma.boardColumn.findUnique({ where: { id: Number(columnId) } })
+    if (!col) throw new Error('列不存在')
+    const project = await requireProject(col.projectId, userId)
+
+    const data = {}
+    if (name !== undefined) {
+      const t = reqStr(name, '列名', MAX_COLUMN_NAME)
+      const dup = await prisma.boardColumn.findFirst({
+        where: { projectId: project.id, name: t, NOT: { id: col.id } },
+      })
+      if (dup) throw new Error('列名已存在')
+      data.name = t
+    }
+    if (boundStatus !== undefined) {
+      if (boundStatus !== null && !STATUSES.includes(boundStatus)) throw new Error('绑定状态取值非法')
+      data.boundStatus = boundStatus
+    }
+    if (retention !== undefined) {
+      if (!RETENTIONS.includes(retention)) throw new Error('保留选项取值非法')
+      data.retention = retention
+    }
+    const row = await prisma.boardColumn.update({ where: { id: col.id }, data })
+    return { item: row }
+  })
+
+  tool(server, 'delete_column', {
+    title: '删除看板列',
+    description: '删除看板列并把列内任务迁移到目标列 (不传则迁移到相邻列)。至少保留一列。',
+    inputSchema: {
+      columnId: z.coerce.number().int().positive().describe('看板列 ID'),
+      moveToColumnId: z.coerce.number().int().positive().optional().describe('任务迁移目标列 ID'),
+    },
+    annotations: { destructiveHint: true },
+  }, async ({ columnId, moveToColumnId }) => {
+    const col = await prisma.boardColumn.findUnique({ where: { id: Number(columnId) } })
+    if (!col) throw new Error('列不存在')
+    const project = await requireProject(col.projectId, userId)
+
+    const cols = await loadColumns(project.id)
+    if (cols.length <= 1) throw new Error('至少保留一列')
+
+    let targetId = Number(moveToColumnId) || 0
+    if (!targetId) {
+      const idx = cols.findIndex((c) => c.id === col.id)
+      targetId = (cols[idx + 1] || cols[idx - 1]).id
+    }
+    const target = cols.find((c) => c.id === targetId)
+    if (!target || target.id === col.id) throw new Error('迁移目标列非法')
+
+    const tasks = await prisma.task.findMany({ where: { columnId: col.id } })
+    const newStatus = target.boundStatus || null
+    await prisma.task.updateMany({
+      where: { columnId: col.id },
+      data: { columnId: target.id, ...(newStatus ? { status: newStatus } : {}) },
+    })
+    await prisma.boardColumn.delete({ where: { id: col.id } })
+    return { ok: true, moved: tasks.length, toColumnId: target.id }
+  })
+
+  tool(server, 'reorder_columns', {
+    title: '看板列排序',
+    description: '按传入的列 ID 数组重排项目全部看板列, 数组顺序即新顺序。',
+    inputSchema: {
+      projectId: z.coerce.number().int().positive().describe('项目 ID'),
+      ids: z.array(z.coerce.number().int().positive()).describe('全部看板列 ID 的新顺序'),
+    },
+  }, async ({ projectId, ids }) => {
+    const project = await requireProject(projectId, userId)
+    const cols = await loadColumns(project.id)
+    const uniq = [...new Set(ids.map(Number))]
+    if (uniq.length !== cols.length || uniq.length !== ids.length) {
+      throw new Error('必须传入项目全部看板列, 且不能重复')
+    }
+    const colSet = new Set(cols.map((c) => c.id))
+    if (uniq.some((eid) => !colSet.has(eid))) throw new Error('包含不属于该项目的看板列')
+    await prisma.$transaction(
+      ids.map((eid, idx) => prisma.boardColumn.update({ where: { id: Number(eid) }, data: { sortOrder: idx } })),
+    )
+    return { items: await loadColumns(project.id) }
+  })
+}
+
+// ---------- 任务 ----------
+
+function registerTaskTools(server, ctx) {
+  const userId = ctx.userId
+
+  tool(server, 'list_tasks', {
+    title: '查询任务',
+    description: '查询项目任务列表 (默认只看未归档顶层任务, 含子任务), 支持按列、状态、关键词过滤。',
+    inputSchema: {
+      projectId: z.coerce.number().int().positive().describe('项目 ID'),
+      columnId: z.coerce.number().int().positive().optional().describe('只看某一列'),
+      status: z.enum(STATUSES).optional().describe('只看某一状态'),
+      keyword: z.string().optional().describe('标题关键词'),
+      includeArchived: z.boolean().optional().describe('是否包含已归档任务, 默认 false'),
+      limit: z.coerce.number().int().positive().max(500).optional().describe('最多返回条数, 默认 200'),
+    },
+    annotations: { readOnlyHint: true },
+  }, async ({ projectId, columnId, status, keyword, includeArchived = false, limit = 200 }) => {
+    const project = await requireProject(projectId, userId)
+    const columns = await loadColumns(project.id)
+    const where = { projectId: project.id, parentId: null }
+    if (!includeArchived) where.archived = false
+    if (columnId) where.columnId = Number(columnId)
+    if (status) where.status = status
+    if (keyword && String(keyword).trim()) where.title = { contains: String(keyword).trim() }
+
+    const rows = await prisma.task.findMany({
+      where,
+      include: TASK_INCLUDE,
+      orderBy: [{ sortOrder: 'asc' }, { id: 'asc' }],
+      take: limit,
+    })
+    const order = new Map(columns.map((c, i) => [c.id, i]))
+    rows.sort((a, b) => (
+      (order.get(a.columnId) ?? 9999) - (order.get(b.columnId) ?? 9999)
+      || a.sortOrder - b.sortOrder
+      || a.id - b.id
+    ))
+    return { columns, items: rows.map(shapeTask), total: rows.length }
+  })
+
+  tool(server, 'get_task', {
+    title: '查询任务详情',
+    description: '读取单个任务的完整信息, 含看板列、负责人、创建者、成员、标签和子任务。',
+    inputSchema: { taskId: z.coerce.number().int().positive().describe('任务 ID') },
+    annotations: { readOnlyHint: true },
+  }, async ({ taskId }) => {
+    const found = await loadTaskForUser(taskId, userId)
+    if (!found) throw new Error('任务不存在或无权限')
+    return { item: shapeTask(found.task) }
+  })
+
+  tool(server, 'create_task', {
+    title: '新建任务',
+    description: '在项目中新建任务或子任务, 可指定列、状态、负责人、成员、标签、类型和时间标记。',
+    inputSchema: {
+      projectId: z.coerce.number().int().positive().describe('项目 ID'),
+      title: z.string().describe('任务标题, 最多 30 字'),
+      description: z.string().optional().describe('任务描述'),
+      columnId: z.coerce.number().int().positive().optional().describe('看板列 ID, 默认第一列'),
+      status: z.enum(STATUSES).optional().describe('任务状态, 默认跟随看板列绑定'),
+      parentId: z.coerce.number().int().positive().optional().describe('父任务 ID (仅一级子任务)'),
+      assigneeId: z.coerce.number().int().positive().nullable().optional().describe('负责人用户 ID; 不传默认创建者, null 表示不指派'),
+      memberIds: z.array(z.coerce.number().int().positive()).optional().describe('任务成员用户 ID 列表'),
+      tags: z.array(z.string()).optional().describe('标签列表'),
+      kind: z.string().optional().describe('任务类型标签, 最多 20 字'),
+      markDate: z.string().nullable().optional().describe('时间标记 YYYY-MM-DD'),
+      extras: z.array(z.object({
+        label: z.string().optional(),
+        value: z.string().optional(),
+        url: z.string().optional(),
+      })).optional().describe('扩展信息卡片'),
+      sortOrder: z.coerce.number().int().optional().describe('排序值, 不传则追加到列末尾'),
+    },
+  }, async (args) => {
+    const project = await requireProject(args.projectId, userId)
+    const title = reqStr(args.title, '任务标题', 30)
+    const columns = await loadColumns(project.id)
+    if (!columns.length) throw new Error('项目没有可用的看板列')
+
+    let pid = null
+    if (args.parentId) {
+      const parent = await prisma.task.findUnique({ where: { id: Number(args.parentId) } })
+      if (!parent) throw new Error('父任务不存在')
+      if (parent.projectId !== project.id) throw new Error('子任务必须与父任务同项目')
+      if (parent.parentId) throw new Error('仅支持一级子任务')
+      pid = parent.id
+    }
+
+    let columnId = args.columnId ? Number(args.columnId) : columns[0].id
+    let targetCol = columns.find((c) => c.id === columnId)
+    if (!targetCol) throw new Error('看板列不存在')
+    let status = args.status || targetCol.boundStatus || 'todo'
+    if (args.status !== undefined) {
+      const r = resolveTaskWrite(
+        { status: targetCol.boundStatus || 'todo', columnId, parentId: pid, column: targetCol },
+        { status: args.status },
+        columns,
+      )
+      status = r.status
+      columnId = r.columnId
+      targetCol = columns.find((c) => c.id === columnId) || targetCol
+    }
+
+    const memberIds = await loadMemberIds(project.id)
+    const memberSet = new Set(memberIds)
+    let finalAssignee = null
+    if (args.assigneeId === undefined) finalAssignee = memberSet.has(userId) ? userId : null
+    else if (args.assigneeId !== null && args.assigneeId !== '') {
+      const aid = Number(args.assigneeId)
+      if (!memberSet.has(aid)) throw new Error('负责人必须是项目成员')
+      finalAssignee = aid
+    }
+
+    let sortOrder = args.sortOrder
+    if (sortOrder === undefined) {
+      const agg = await prisma.task.aggregate({
+        where: { projectId: project.id, columnId, parentId: pid },
+        _max: { sortOrder: true },
+      })
+      sortOrder = (agg._max.sortOrder ?? -1) + 1
+    }
+
+    const taskData = {
+      uuid: genUuid(),
+      projectId: project.id,
+      columnId,
+      parentId: pid,
+      title,
+      description: String(args.description || ''),
+      kind: args.kind ? String(args.kind).trim().slice(0, 20) : null,
+      markDate: parseMarkDate(args.markDate),
+      status,
+      doneAt: status === 'done' ? new Date() : null,
+      assigneeId: finalAssignee,
+      creatorId: userId,
+      extras: (Array.isArray(args.extras) ? args.extras : []).map((e) => ({
+        label: String(e?.label ?? '').slice(0, 40),
+        value: String(e?.value ?? ''),
+        url: e?.url ? String(e.url) : '',
+      })),
+      sortOrder,
+      members: {
+        create: withUuid((Array.isArray(args.memberIds) ? args.memberIds : [])
+          .map(Number).filter((uid) => memberSet.has(uid))
+          .map((uid) => ({ userId: uid }))),
+      },
+      tags: {
+        create: withUuid((Array.isArray(args.tags) ? args.tags : [])
+          .map((n) => String(n).trim()).filter(Boolean).slice(0, 10)
+          .map((name) => ({ name: name.slice(0, 20) }))),
+      },
+    }
+    const { value: row } = await withTaskNumber(project.id, (number) =>
+      prisma.task.create({ data: { ...taskData, number }, include: TASK_INCLUDE }),
+    )
+    return { item: shapeTask(row) }
+  })
+
+  tool(server, 'update_task', {
+    title: '修改任务',
+    description: '修改任务标题、描述、列、状态、负责人、成员、标签、类型、时间标记、父任务或排序值。',
+    inputSchema: {
+      taskId: z.coerce.number().int().positive().describe('任务 ID'),
+      title: z.string().optional().describe('新标题, 最多 30 字'),
+      description: z.string().optional().describe('新描述'),
+      columnId: z.coerce.number().int().positive().optional().describe('移动到看板列'),
+      status: z.enum(STATUSES).optional().describe('任务状态'),
+      assigneeId: z.coerce.number().int().positive().nullable().optional().describe('负责人用户 ID, null 取消指派'),
+      memberIds: z.array(z.coerce.number().int().positive()).optional().describe('任务成员, 整体替换'),
+      tags: z.array(z.string()).optional().describe('标签, 整体替换'),
+      kind: z.string().nullable().optional().describe('任务类型标签, null 清空'),
+      markDate: z.string().nullable().optional().describe('时间标记 YYYY-MM-DD, null 清空'),
+      extras: z.array(z.object({
+        label: z.string().optional(),
+        value: z.string().optional(),
+        url: z.string().optional(),
+      })).optional().describe('扩展信息, 整体替换'),
+      sortOrder: z.coerce.number().int().optional().describe('排序值'),
+      parentId: z.coerce.number().int().positive().nullable().optional().describe('父任务 ID, null 取消父子关系'),
+      archived: z.boolean().optional().describe('归档/恢复任务'),
+    },
+  }, async (args) => {
+    const found = await loadTaskForUser(args.taskId, userId)
+    if (!found) throw new Error('任务不存在或无权限')
+    const { task, project } = found
+    const columns = await loadColumns(project.id)
+    const data = {}
+
+    if (args.title !== undefined) data.title = reqStr(args.title, '任务标题', 30)
+    if (args.description !== undefined) data.description = String(args.description)
+    if (args.kind !== undefined) {
+      const k = String(args.kind || '').trim().slice(0, 20)
+      data.kind = k || null
+    }
+    if (args.markDate !== undefined) data.markDate = parseMarkDate(args.markDate)
+    if (args.extras !== undefined) {
+      data.extras = args.extras.map((e) => ({
+        label: String(e?.label ?? '').slice(0, 40),
+        value: String(e?.value ?? ''),
+        url: e?.url ? String(e.url) : '',
+      }))
+    }
+    if (args.sortOrder !== undefined) data.sortOrder = Number(args.sortOrder) || 0
+    if (args.archived !== undefined) {
+      data.archived = !!args.archived
+      data.archivedAt = args.archived ? new Date() : null
+      data.archiveSource = args.archived ? 'manual' : null
+    }
+
+    const memberIds = await loadMemberIds(project.id)
+    const memberSet = new Set(memberIds)
+    if (args.assigneeId !== undefined) {
+      if (args.assigneeId === null || args.assigneeId === '') data.assigneeId = null
+      else {
+        const aid = Number(args.assigneeId)
+        if (!memberSet.has(aid)) throw new Error('负责人必须是项目成员')
+        data.assigneeId = aid
+      }
+    }
+
+    const patch = {}
+    if (args.columnId !== undefined) patch.columnId = Number(args.columnId)
+    if (args.status !== undefined) patch.status = args.status
+    if (patch.columnId !== undefined && !columns.some((c) => c.id === patch.columnId)) {
+      throw new Error('看板列不存在')
+    }
+
+    let finalStatus = task.status
+    if (Object.keys(patch).length) {
+      const r = resolveTaskWrite(task, patch, columns)
+      data.status = r.status
+      data.columnId = r.columnId
+      finalStatus = r.status
+    }
+    if (finalStatus === 'done' && task.status !== 'done') data.doneAt = new Date()
+    else if (finalStatus !== 'done' && data.status !== undefined) data.doneAt = null
+
+    if (Array.isArray(args.memberIds)) {
+      const ids = args.memberIds.map(Number).filter((uid) => memberSet.has(uid))
+      await prisma.taskMember.deleteMany({ where: { taskId: task.id } })
+      if (ids.length) {
+        await prisma.taskMember.createMany({
+          data: withUuid(ids.map((uid) => ({ taskId: task.id, userId: uid }))),
+        })
+      }
+    }
+    if (Array.isArray(args.tags)) {
+      await prisma.taskTag.deleteMany({ where: { taskId: task.id } })
+      const names = args.tags.map((n) => String(n).trim()).filter(Boolean).slice(0, 10)
+      if (names.length) {
+        await prisma.taskTag.createMany({
+          data: withUuid(names.map((name) => ({ taskId: task.id, name: name.slice(0, 20) }))),
+        })
+      }
+    }
+
+    if (args.parentId !== undefined) {
+      if (args.parentId === null) data.parentId = null
+      else {
+        const pid = Number(args.parentId)
+        if (pid === task.id) throw new Error('不能成为自己的子任务')
+        const parent = await prisma.task.findUnique({ where: { id: pid } })
+        if (!parent) throw new Error('目标任务不存在')
+        if (parent.projectId !== task.projectId) throw new Error('子任务必须与父任务同项目')
+        if (parent.parentId) throw new Error('仅支持一级子任务')
+        const childCount = await prisma.task.count({ where: { parentId: task.id } })
+        if (childCount > 0) throw new Error('该任务已有子任务，不能成为子任务')
+        data.parentId = pid
+      }
+    }
+
+    let row = await prisma.task.update({ where: { id: task.id }, data, include: TASK_INCLUDE })
+
+    // 归档/恢复连同子任务, 与 archive_task / unarchive_task 口径一致
+    if (args.archived !== undefined) {
+      const children = await prisma.task.findMany({ where: { parentId: task.id }, select: { id: true } })
+      if (children.length) {
+        await prisma.task.updateMany({
+          where: { id: { in: children.map((c) => c.id) } },
+          data: {
+            archived: !!args.archived,
+            archivedAt: args.archived ? new Date() : null,
+            archiveSource: args.archived ? 'manual' : null,
+          },
+        })
+      }
+      // 子任务状态变化后重取, 保证返回值与库内一致
+      row = await prisma.task.findUnique({ where: { id: task.id }, include: TASK_INCLUDE })
+    }
+    return { item: shapeTask(row) }
+  })
+
+  tool(server, 'delete_task', {
+    title: '删除任务',
+    description: '永久删除任务; 其子任务会一并级联删除。',
+    inputSchema: { taskId: z.coerce.number().int().positive().describe('任务 ID') },
+    annotations: { destructiveHint: true },
+  }, async ({ taskId }) => {
+    const found = await loadTaskForUser(taskId, userId)
+    if (!found) throw new Error('任务不存在或无权限')
+    const childCount = await prisma.task.count({ where: { parentId: found.task.id } })
+    await prisma.task.delete({ where: { id: found.task.id } })
+    return { ok: true, deletedSubtasks: childCount }
+  })
+
+  tool(server, 'archive_task', {
+    title: '归档任务',
+    description: '归档任务并连带全部子任务; 已归档时重复调用无副作用。',
+    inputSchema: { taskId: z.coerce.number().int().positive().describe('任务 ID') },
+  }, async ({ taskId }) => {
+    const found = await loadTaskForUser(taskId, userId)
+    if (!found) throw new Error('任务不存在或无权限')
+    const children = await prisma.task.findMany({ where: { parentId: found.task.id }, select: { id: true } })
+    const r = await prisma.task.updateMany({
+      where: { id: { in: [found.task.id, ...children.map((c) => c.id)] } },
+      data: { archived: true, archivedAt: new Date(), archiveSource: 'manual' },
+    })
+    return { ok: true, count: r.count }
+  })
+
+  tool(server, 'unarchive_task', {
+    title: '恢复任务',
+    description: '把归档任务恢复到原列, 状态不变; 连带恢复子任务。',
+    inputSchema: { taskId: z.coerce.number().int().positive().describe('任务 ID') },
+  }, async ({ taskId }) => {
+    const found = await loadTaskForUser(taskId, userId)
+    if (!found) throw new Error('任务不存在或无权限')
+    const children = await prisma.task.findMany({ where: { parentId: found.task.id }, select: { id: true } })
+    const r = await prisma.task.updateMany({
+      where: { id: { in: [found.task.id, ...children.map((c) => c.id)] } },
+      data: { archived: false, archivedAt: null, archiveSource: null },
+    })
+    return { ok: true, count: r.count }
+  })
+
+  tool(server, 'reorder_tasks', {
+    title: '任务排序',
+    description: '按传入的任务 ID 数组重写排序 (数组顺序即新顺序)。传 columnId 时只重排该列内的任务。',
+    inputSchema: {
+      projectId: z.coerce.number().int().positive().describe('项目 ID'),
+      ids: z.array(z.coerce.number().int().positive()).describe('任务 ID 的新顺序'),
+      columnId: z.coerce.number().int().positive().optional().describe('仅重排该看板列内的任务'),
+    },
+  }, async ({ projectId, ids, columnId }) => {
+    const project = await requireProject(projectId, userId)
+    const uniq = [...new Set(ids.map(Number))]
+    if (!uniq.length) throw new Error('ids 不能为空')
+    if (uniq.length !== ids.length) throw new Error('ids 不能重复')
+
+    const where = { projectId: project.id, id: { in: uniq } }
+    if (columnId) where.columnId = Number(columnId)
+    else where.parentId = null
+    const rows = await prisma.task.findMany({ where, select: { id: true } })
+    if (rows.length !== uniq.length) throw new Error('包含无效的任务或不属于指定列')
+
+    await prisma.$transaction(
+      ids.map((tid, idx) => prisma.task.update({ where: { id: Number(tid) }, data: { sortOrder: idx } })),
+    )
+    return { ok: true, orderedIds: ids.map(Number) }
+  })
+
+  tool(server, 'copy_task', {
+    title: '拷贝任务',
+    description: '把任务及子任务拷贝到另一个项目; 非目标项目成员会被自动丢弃。',
+    inputSchema: {
+      taskId: z.coerce.number().int().positive().describe('源任务 ID'),
+      projectId: z.coerce.number().int().positive().describe('目标项目 ID'),
+    },
+  }, async ({ taskId, projectId }) => {
+    const found = await loadTaskForUser(taskId, userId)
+    if (!found) throw new Error('任务不存在或无权限')
+    const targetProject = await requireProject(projectId, userId)
+    const targetColumns = await loadColumns(targetProject.id)
+    if (!targetColumns.length) throw new Error('目标项目没有可用的看板列')
+    const targetMemberIds = await loadMemberIds(targetProject.id)
+    const sourceColumns = await loadColumns(found.project.id)
+    const source = { ...found.task, __columns: sourceColumns }
+
+    const result = await copyTask({
+      source, targetProject, targetColumns, operatorId: userId, targetMemberIds,
+    })
+    const fresh = await prisma.task.findUnique({ where: { id: result.task.id }, include: TASK_INCLUDE })
+    return { item: shapeTask(fresh), dropped: result.dropped }
+  })
+}
+
+export function registerTaskToolsGroup(server, ctx) {
+  registerProjectTools(server, ctx)
+  registerColumnTools(server, ctx)
+  registerTaskTools(server, ctx)
+}