Merge pull request 'feat: Step 2-4 — Task/Mail/Toolchain Handlers + 11 PromptSections + BaseTaskHandler' (#25) from feat/task-type-handlers-step2-4 into main

src/daemon/base_task_handler.py

@@ -0,0 +1,179 @@
+"""base_task_handler.py — Task type handler 基类。
+
+收敛合理的共性能力（crash rollback + verify + mark + notify），
+子类只实现差异点。
+"""
+from __future__ import annotations
+
+import logging
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Optional
+
+from src.daemon.prompt_composer import PromptContext, PromptComposer, PromptSection
+from src.blackboard.db import get_connection
+
+logger = logging.getLogger("moziplus-v2.handler")
+
+
+@dataclass
+class VerifyResult:
+    """验证结果"""
+    passed: bool
+    reason: str          # "has_output" / "no_reply" / "no_signal" / ...
+    evidence: str        # "output_count=1, comment_count=0"
+    can_retry: bool = True
+    retry_count: int = 0
+
+
+class BaseTaskHandler:
+    """所有 task type handler 的基类。
+    
+    职责：L2 引擎注入层的业务逻辑——prompt 构建、完成验证、状态标记。
+    不管：进程生命周期、exit 分类、重试决策（这些归 spawner）。
+    """
+    
+    # crash 类 outcome（进程级异常，需要 rollback）
+    CRASH_OUTCOMES = frozenset({
+        "crashed", "compact_failed", "process_crash",
+        "session_stuck", "compact_hanging",
+    })
+    
+    task_type: str = ""
+    virtual_project: Optional[str] = None
+    
+    # === 子类必须实现 ===
+    
+    def build_prompt(self, context: PromptContext) -> str:
+        """构建 L2 prompt（通过 PromptComposer 拼 section）。子类实现。"""
+        raise NotImplementedError
+    
+    def verify_completion(self, task_id: str, db_path: Path) -> VerifyResult:
+        """验证任务完成质量。每个 handler 自己的验证逻辑。子类实现。"""
+        raise NotImplementedError
+    
+    def target_success_status(self) -> str:
+        """验证通过后的目标状态。task='review', mail/toolchain='done'"""
+        return "review"
+    
+    def get_sections(self) -> list[PromptSection]:
+        """返回此 handler 的 prompt section 列表。子类实现。"""
+        return []
+    
+    # === 基类提供统一流程 ===
+    
+    def pre_spawn(self, task_id: str, db_path: Path) -> bool:
+        """spawn 前业务准备。默认 True。
+        mail/toolchain override 为 auto_working。"""
+        return True
+    
+    def post_complete(self, task_id: str, agent_id: str,
+                      outcome: str, db_path: Path) -> None:
+        """spawn 完成后的业务处理。统一 4 步流程：
+        1. crash 处理 → rollback current_agent
+        2. verify → 验证产出
+        3. mark → 标目标状态
+        4. notify → 失败时 on_failure
+        """
+        # 1. crash 处理（基类提供，所有 handler 继承）
+        if outcome in self.CRASH_OUTCOMES:
+            self._rollback_current_agent(db_path, task_id, agent_id)
+            return
+        
+        # 2. verify
+        result = self.verify_completion(task_id, db_path)
+        
+        # 3. mark
+        if result.passed:
+            self._mark_task_status(db_path, task_id, self.target_success_status())
+            logger.info("Task %s: verify passed (%s), marked %s",
+                        task_id, result.reason, self.target_success_status())
+        else:
+            # 4. notify
+            self.on_failure(task_id, agent_id, db_path, result)
+    
+    def on_failure(self, task_id: str, agent_id: str,
+                   db_path: Path, verify: VerifyResult) -> None:
+        """验证失败处理。默认：标 failed。子类可 override。"""
+        self._mark_task_status(db_path, task_id, "failed")
+        logger.info("Task %s: verify failed (%s), marked failed",
+                     task_id, verify.reason)
+    
+    def check_completion(self, task_id: str, db_path: Path) -> bool:
+        """ticker 级别的完成检查。默认：False。"""
+        return False
+    
+    # === 内部工具方法 ===
+    
+    def _rollback_current_agent(self, db_path: Path, task_id: str, agent_id: str) -> None:
+        """crash 后回退 current_agent → assignee，避免 exclude_current 卡死。
+        从 dispatcher._rollback_current_agent 迁移。"""
+        try:
+            conn = get_connection(db_path)
+            try:
+                conn.execute(
+                    "UPDATE tasks SET current_agent = "
+                    "(SELECT assignee FROM tasks WHERE id=?) "
+                    "WHERE id=? AND current_agent=?",
+                    (task_id, task_id, agent_id)
+                )
+                conn.commit()
+            finally:
+                conn.close()
+            logger.info("Task %s: rolled back current_agent from %s to assignee",
+                        task_id, agent_id)
+        except Exception as e:
+            logger.warning("Task %s: failed to rollback current_agent: %s",
+                           task_id, e)
+    
+    def _mark_task_status(self, db_path: Path, task_id: str, status: str) -> None:
+        """更新任务状态 + 写审计事件。
+        从 dispatcher._mark_task_status 迁移。"""
+        try:
+            conn = get_connection(db_path)
+            try:
+                conn.execute("BEGIN IMMEDIATE")
+                old_row = conn.execute(
+                    "SELECT status FROM tasks WHERE id=?", (task_id,)
+                ).fetchone()
+                old_status = old_row["status"] if old_row else "unknown"
+                conn.execute(
+                    "UPDATE tasks SET status=?, updated_at=datetime('now') WHERE id=?",
+                    (status, task_id),
+                )
+                conn.execute(
+                    "INSERT INTO events (task_id, agent, event_type, payload) "
+                    "VALUES (?, 'handler', 'status_change', ?)",
+                    (task_id,
+                     f'{{"from": "{old_status}", "to": "{status}", '
+                     f'"source": "{self.task_type}_handler"}}'),
+                )
+                conn.commit()
+            finally:
+                conn.close()
+        except Exception as e:
+            logger.error("Task %s: mark status error: %s", task_id, e)
+    
+    def _auto_mark_working(self, task_id: str, db_path: Path) -> bool:
+        """pending → working（mail/toolchain 通用）。"""
+        try:
+            conn = get_connection(db_path)
+            try:
+                conn.execute("BEGIN IMMEDIATE")
+                row = conn.execute(
+                    "SELECT status FROM tasks WHERE id=?", (task_id,)).fetchone()
+                if not row or row["status"] not in ("pending", "claimed"):
+                    logger.warning("Task %s: cannot mark working (status=%s)",
+                                   task_id, row["status"] if row else "not found")
+                    return False
+                conn.execute(
+                    "UPDATE tasks SET status='working', updated_at=datetime('now') "
+                    "WHERE id=?", (task_id,))
+                conn.commit()
+                logger.info("Task %s: auto-marked working", task_id)
+                return True
+            finally:
+                conn.close()
+        except Exception as e:
+            logger.error("Task %s: failed to mark working: %s", task_id, e)
+            return False

src/daemon/mail_handler.py

@@ -0,0 +1,206 @@
+"""mail_handler.py — Mail 任务 handler。
+
+处理 Agent 间通信（飞鸽传书），含 inform 和 request 两种类型。
+"""
+from __future__ import annotations
+
+import json
+import logging
+from pathlib import Path
+from typing import Dict, Optional
+
+from src.daemon.base_task_handler import BaseTaskHandler, VerifyResult
+from src.daemon.prompt_composer import PromptComposer, PromptContext
+from src.blackboard.db import get_connection
+
+logger = logging.getLogger("moziplus-v2.handler.mail")
+
+class MailHandler(BaseTaskHandler):
+    """Mail 任务 handler。"""
+
+    task_type = "mail"
+    virtual_project = "_mail"
+
+    def target_success_status(self) -> str:
+        return "done"
+
+    def pre_spawn(self, task_id: str, db_path: Path) -> bool:
+        """auto_working：pending → working"""
+        return self._auto_mark_working(task_id, db_path)
+
+    def build_prompt(self, context: PromptContext) -> str:
+        """通过 PromptComposer 拼装 3 个 section。"""
+        composer = PromptComposer()
+        composer.add_many(self.get_sections())
+        return composer.compose(context)
+
+    def get_sections(self) -> list:
+        return [MailContextSection(), MailApiSection(), MailConstraintsSection()]
+
+    def verify_completion(self, task_id: str, db_path: Path) -> VerifyResult:
+        """Mail 完成验证：区分 inform/request。
+
+        - inform: 始终通过（通知已阅即 done，不需要检查产出）
+        - request: 检查是否已回复
+        """
+        performative = self._parse_performative(task_id, db_path)
+
+        if performative == "inform":
+            return VerifyResult(True, "inform_auto", f"performative={performative}")
+
+        # request: 检查是否已回复
+        has_reply = self._check_reply(task_id, db_path)
+        if has_reply:
+            return VerifyResult(True, "has_reply", f"performative={performative}")
+        return VerifyResult(False, "no_reply", f"performative={performative}")
+
+    # post_complete 由基类 BaseTaskHandler 统一处理（crash→verify→mark→notify）
+    # inform: verify 始终通过 → 基类 mark done ✅
+    # request 有回复: verify 通过 → 基类 mark done ✅
+    # request 无回复: verify 失败 → 基类调 on_failure ✅
+
+    def on_failure(self, task_id: str, agent_id: str,
+                   db_path: Path, verify: VerifyResult) -> None:
+        """request 验证失败 → 标 failed + 通知发件人"""
+        self._mark_task_status(db_path, task_id, "failed")
+        logger.info("Mail %s: request verify failed (%s), marked failed",
+                     task_id, verify.reason)
+
+        # 通知发件人
+        try:
+            from src.daemon.mail_notify import notify_mail_failed
+            notify_mail_failed(db_path, task_id, "no_reply_found")
+        except Exception as e:
+            logger.warning("Mail %s: failed to send notification: %s", task_id, e)
+
+    # === 内部方法 ===
+
+    def _parse_performative(self, task_id: str, db_path: Path) -> str:
+        """解析 mail 类型（inform/request）"""
+        try:
+            conn = get_connection(db_path)
+            try:
+                row = conn.execute(
+                    "SELECT must_haves FROM tasks WHERE id=?", (task_id,)
+                ).fetchone()
+                if row and row["must_haves"]:
+                    meta = json.loads(row["must_haves"])
+                    return meta.get("performative", meta.get("type", "request"))
+            finally:
+                conn.close()
+        except Exception:
+            pass
+        return "request"
+
+    def _check_reply(self, task_id: str, db_path: Path) -> bool:
+        """检查是否已回复（从 dispatcher._mail_check_reply 迁移）"""
+        try:
+            conn = get_connection(db_path)
+            try:
+                row = conn.execute(
+                    "SELECT COUNT(*) as cnt FROM comments "
+                    "WHERE task_id=? AND author != 'daemon' "
+                    "AND comment_type != 'system'",
+                    (task_id,)
+                ).fetchone()
+                count = row["cnt"] if row else 0
+                return count > 0
+            finally:
+                conn.close()
+        except Exception as e:
+            logger.error("Mail %s: check reply error: %s", task_id, e)
+            return False
+
+    def check_completion(self, task_id: str, db_path: Path) -> bool:
+        """ticker 级别的完成检查：检查是否已回复"""
+        return self._check_reply(task_id, db_path)
+
+
+# ===================================================================
+# Mail PromptSections
+# ===================================================================
+
+class MailContextSection:
+    """邮件上下文段 — 发件人/收件人/主题/内容，区分 inform/request。"""
+
+    name: str = "mail_context"
+    priority: int = 10
+
+    def render(self, context: PromptContext) -> str:
+        if context.mail_type == "inform":
+            return self._render_inform(context)
+        return self._render_request(context)
+
+    def should_include(self, context: PromptContext) -> bool:  # noqa: ARG002
+        return True
+
+    @staticmethod
+    def _render_inform(context: PromptContext) -> str:
+        return (
+            f"你收到一封飞鸽传书(纯通知)。\n\n"
+            f"发件者: {context.from_agent}\n"
+            f"主题: {context.title}\n"
+            f"内容: {context.description}\n\n"
+            f"已阅即可。如需回复,用 in_reply_to 回复发件者(不需要填 to)。\n"
+            f"⚠️ 不要执行任何状态转换命令。"
+        )
+
+    @staticmethod
+    def _render_request(context: PromptContext) -> str:
+        return (
+            f"你收到一封飞鸽传书,需要你处理并回复。\n\n"
+            f"发件者: {context.from_agent}\n"
+            f"主题: {context.title}\n"
+            f"内容: {context.description}\n\n"
+            f"### 如何回复发件者\n\n"
+            f'curl -s -X POST http://localhost:8083/api/mail \\\n'
+            f"  -H 'Content-Type: application/json' \\\n"
+            f'  -d \'{{"from": "{context.agent_id}", '
+            f'"in_reply_to": "{context.task_id}", '
+            f'"title": "回复: {context.title}", '
+            f'"text": "你的回复内容"}}\'\n\n'
+            f"⚠️ 不需要填 \"to\",系统自动回复给发件者。"
+        )
+
+
+class MailApiSection:
+    """Mail API 操作指令段。"""
+
+    name: str = "mail_api"
+    priority: int = 40
+
+    def render(self, context: PromptContext) -> str:
+        return (
+            f"### 如何给其他人发新邮件\n\n"
+            f'curl -s -X POST http://localhost:8083/api/mail \\\n'
+            f"  -H 'Content-Type: application/json' \\\n"
+            f'  -d \'{{"from": "{context.agent_id}", '
+            f'"to": "对方agent-id", '
+            f'"title": "标题", '
+            f'"text": "正文", '
+            f'"type": "inform"}}\'\n\n'
+            f"⚠️ to 必须是有效的 agent id\n"
+            f"⚠️ 纯通知用 type=inform,需要对方回复不填 type(默认 request)"
+        )
+
+    def should_include(self, context: PromptContext) -> bool:
+        return context.mail_type == "request"
+
+
+class MailConstraintsSection:
+    """Mail 硬约束段。"""
+
+    name: str = "mail_constraints"
+    priority: int = 50
+
+    def render(self, context: PromptContext) -> str:  # noqa: ARG002
+        return (
+            "## 硬约束\n\n"
+            "1. ⚠️ 不要执行任何状态转换命令(标 working/done/review/failed 等),系统会自动处理。\n"
+            "2. ⚠️ 不能给自己发邮件\n"
+            "3. ⚠️ 发邮件时 to 必须是有效的 agent id\n"
+            "4. ⚠️ 纯通知用 type=inform,需要对方回复不填 type(默认 request)"
+        )
+
+    def should_include(self, context: PromptContext) -> bool:  # noqa: ARG002
+        return True

src/daemon/task_handler.py

@@ -0,0 +1,330 @@
+"""task_handler.py — 黑板任务 handler（task_type='task'）。
+
+标准黑板任务：三信号验证 → review 状态。
+"""
+from __future__ import annotations
+
+import logging
+from pathlib import Path
+from typing import Dict, List, Optional
+
+from src.daemon.base_task_handler import BaseTaskHandler, VerifyResult
+from src.daemon.prompt_composer import PromptComposer, PromptContext
+from src.blackboard.db import get_connection
+
+logger = logging.getLogger("moziplus-v2.handler")
+
+TERMINAL_STATES = frozenset({"review", "done", "failed", "cancelled"})
+
+# ---------------------------------------------------------------------------
+# Role → Skill 映射（D8 决策：L2 只给索引+引导语，不注全文）
+# ---------------------------------------------------------------------------
+ROLE_SKILL_MAP: Dict[str, str] = {
+    "executor": "blackboard-executor",
+    "reviewer": "blackboard-reviewer",
+    "reviewer-simayi": "blackboard-reviewer-simayi",
+    "reviewer-pangtong": "blackboard-reviewer-pangtong",
+    "planner": "blackboard-planner",
+    "claim": "blackboard-claim",
+}
+
+SKILL_BASE_PATH = "/Users/chufeng/.sanguo_projects/sanguo_mozi/skills"
+
+
+# ---------------------------------------------------------------------------
+# PromptSection 实现
+# ---------------------------------------------------------------------------
+
+class TaskContextSection:
+    """段 1：任务上下文（title / desc / must_haves / status）。"""
+
+    name: str = "task_context"
+    priority: int = 10
+
+    def render(self, context: PromptContext) -> str:
+        parts = ["## 任务上下文"]
+        if context.task_id:
+            parts.append(f"任务ID: {context.task_id}")
+        if context.title:
+            parts.append(f"标题: {context.title}")
+        if context.description:
+            parts.append(f"描述: {context.description}")
+        if context.must_haves:
+            parts.append(f"必须完成: {context.must_haves}")
+        if context.task and context.task.get("status"):
+            parts.append(f"当前状态: {context.task['status']}")
+        return "\n".join(parts)
+
+    def should_include(self, context: PromptContext) -> bool:
+        return bool(context.task_id or context.title)
+
+
+class PriorOutputsSection:
+    """段 2：前序产出摘要（depends_on 非空时注入）。"""
+
+    name: str = "prior_outputs"
+    priority: int = 20
+
+    def render(self, context: PromptContext) -> str:
+        outputs = context.depends_on_outputs or []
+        parts = ["## 前序产出"]
+        for out in outputs:
+            tid = out.get("task_id", "?")
+            summary = out.get("summary", "无摘要")
+            parts.append(f"- [{tid}] {summary}")
+        return "\n".join(parts)
+
+    def should_include(self, context: PromptContext) -> bool:
+        return bool(context.depends_on_outputs)
+
+
+class RoleSkillSection:
+    """段 3：角色 Skill 索引+引导语（D8 决策：不注全文）。"""
+
+    name: str = "role_skill"
+    priority: int = 30
+
+    def render(self, context: PromptContext) -> str:
+        skill_name = ROLE_SKILL_MAP.get(context.role, "")
+        lines = [
+            "## 角色操作规范",
+            f"你的角色：{context.role}",
+        ]
+        if skill_name:
+            lines.append(f"对应 Skill：{skill_name}")
+            lines.append(
+                f"请用 read 工具读取 {SKILL_BASE_PATH}/{skill_name}/SKILL.md "
+                "获取完整操作规范。"
+            )
+        else:
+            lines.append("无对应 Skill 文件，按通用规范执行。")
+        return "\n".join(lines)
+
+    def should_include(self, context: PromptContext) -> bool:
+        return True
+
+
+class TaskApiSection:
+    """段 4：API 操作指令。"""
+
+    name: str = "task_api"
+    priority: int = 40
+
+    API_HOST = "localhost"
+    API_PORT = 8083
+
+    def render(self, context: PromptContext) -> str:
+        pid = context.project_id
+        tid = context.task_id
+        aid = context.agent_id
+        success_status = '"review"'
+        base = f"http://{self.API_HOST}:{self.API_PORT}/api/projects/{pid}/tasks/{tid}"
+        return (
+            "## 操作指令\n"
+            "### 状态回写\n"
+            f"开始工作:\n"
+            f'curl -X POST {base}/status \\\n'
+            f'  -H "Content-Type: application/json" \\\n'
+            f'  -d \'{{"status": "working", "agent": "{aid}"}}\'\n\n'
+            "### 写入产出\n"
+            f'curl -X POST {base}/outputs \\\n'
+            f'  -H "Content-Type: application/json" \\\n'
+            f"  -d '{{\"type\": \"text\", \"content\": \"<your output>\"}}'\n\n"
+            "### 完成后\n"
+            f"成功: status → {success_status} | 失败: status → \"failed\""
+        )
+
+    def should_include(self, context: PromptContext) -> bool:
+        return True
+
+
+class TaskConstraintsSection:
+    """段 5：硬约束。"""
+
+    name: str = "task_constraints"
+    priority: int = 50
+
+    def render(self, context: PromptContext) -> str:
+        constraints = ["## 硬约束"]
+        role = context.role
+        if role == "executor":
+            constraints.extend([
+                "- 完成后必须标 review",
+                "- 产出物不能为空（系统会验证）",
+                "- handoff comment ≥ 50 字符",
+            ])
+        elif role.startswith("reviewer"):
+            constraints.extend([
+                "- 审查结果必须明确 pass/fail",
+                "- 评审意见须附证据（文件:行号）",
+            ])
+        elif role == "planner":
+            constraints.extend([
+                "- 需求不清时提问，不要猜",
+                "- 子任务必须有明确的终态定义",
+            ])
+        else:
+            constraints.append("- 按规范完成 assigned 任务")
+        return "\n".join(constraints)
+
+    def should_include(self, context: PromptContext) -> bool:
+        return True
+
+
+class TaskHandler(BaseTaskHandler):
+    """黑板标准任务 handler。
+    
+    - verify: 三信号检查（output / comment / terminal status）
+    - 成功 → review
+    - 失败 → 保持 working，让 ticker 重试
+    - review 完成 → 读取 verdict，approved 则 mark done
+    """
+
+    task_type: str = "task"
+    virtual_project: Optional[str] = None
+
+    # === 子类实现 ===
+
+    def target_success_status(self) -> str:
+        """task 类型验证通过后进 review。"""
+        return "review"
+
+    def verify_completion(self, task_id: str, db_path: Path) -> VerifyResult:
+        """三信号验证：output / comment / terminal status。"""
+        try:
+            conn = get_connection(db_path)
+            try:
+                # 信号 1：terminal status
+                row = conn.execute(
+                    "SELECT status FROM tasks WHERE id=?", (task_id,)
+                ).fetchone()
+                if not row:
+                    return VerifyResult(False, "not_found", "task not found",
+                                        can_retry=False)
+                status = row["status"]
+                if status in TERMINAL_STATES:
+                    return VerifyResult(
+                        True, "terminal_status",
+                        f"status={status}", can_retry=False
+                    )
+
+                # 信号 2：outputs
+                output_count = conn.execute(
+                    "SELECT COUNT(*) as cnt FROM outputs WHERE task_id=?",
+                    (task_id,)
+                ).fetchone()["cnt"]
+                if output_count > 0:
+                    return VerifyResult(
+                        True, "has_output",
+                        f"output_count={output_count}"
+                    )
+
+                # 信号 3：非 system 且内容 >= 50 字的 comment
+                comment_count = conn.execute(
+                    "SELECT COUNT(*) as cnt FROM comments "
+                    "WHERE task_id=? AND author != 'system' "
+                    "AND LENGTH(content) >= 50",
+                    (task_id,)
+                ).fetchone()["cnt"]
+                if comment_count > 0:
+                    return VerifyResult(
+                        True, "has_comment",
+                        f"comment_count={comment_count}"
+                    )
+
+                # 无信号
+                return VerifyResult(
+                    False, "no_signal",
+                    f"output=0, comment=0, status={status}"
+                )
+            finally:
+                conn.close()
+        except Exception as e:
+            logger.error("Task %s: verify error: %s", task_id, e)
+            return VerifyResult(False, "verify_error", str(e))
+
+    def pre_spawn(self, task_id: str, db_path: Path) -> bool:
+        """task 类型不需要 pre_spawn 逻辑。"""
+        return True
+
+    def get_sections(self) -> list:
+        """返回 5 个 PromptSection 实例。"""
+        return [
+            TaskContextSection(),
+            PriorOutputsSection(),
+            RoleSkillSection(),
+            TaskApiSection(),
+            TaskConstraintsSection(),
+        ]
+
+    def build_prompt(self, context: PromptContext) -> str:
+        """通过 PromptComposer 拼装 prompt sections。"""
+        composer = PromptComposer()
+        composer.add_many(self.get_sections())
+        return composer.compose(context)
+
+    def on_failure(self, task_id: str, agent_id: str,
+                   db_path: Path, verify: VerifyResult) -> None:
+        """验证失败：不标 failed，保持 working 让 ticker 重试。"""
+        logger.info(
+            "Task %s: verify failed (%s, evidence=%s), leaving working for ticker retry",
+            task_id, verify.reason, verify.evidence
+        )
+
+    # === Review 流程 ===
+
+    def handle_review_complete(self, task_id: str, db_path: Path) -> None:
+        """Review 完成后处理：读取 verdict → approved 则 mark done，
+        否则 @mention assignee via blackboard comment。"""
+        try:
+            conn = get_connection(db_path)
+            try:
+                # 读取最新 review
+                review_row = conn.execute(
+                    "SELECT verdict, reviewer, comment FROM reviews "
+                    "WHERE task_id=? ORDER BY created_at DESC LIMIT 1",
+                    (task_id,)
+                ).fetchone()
+
+                if not review_row:
+                    logger.warning("Task %s: no review found", task_id)
+                    return
+
+                verdict = review_row["verdict"]
+                reviewer = review_row["reviewer"]
+                review_comment = review_row["comment"] or ""
+
+                # 获取 assignee
+                task_row = conn.execute(
+                    "SELECT assignee FROM tasks WHERE id=?", (task_id,)
+                ).fetchone()
+                if not task_row:
+                    logger.warning("Task %s: task not found for review", task_id)
+                    return
+                assignee = task_row["assignee"]
+
+                if verdict == "approved":
+                    self._mark_task_status(db_path, task_id, "done")
+                    logger.info("Task %s: review approved by %s, marked done",
+                                task_id, reviewer)
+                else:
+                    # 非 approved：通过 blackboard comment @mention assignee
+                    conn.execute(
+                        "INSERT INTO comments (task_id, author, content) "
+                        "VALUES (?, 'system', ?)",
+                        (task_id,
+                         f"@{assignee} review 未通过 (verdict={verdict}, "
+                         f"reviewer={reviewer}): {review_comment}")
+                    )
+                    conn.commit()
+                    # 回到 working 让 assignee 重新处理
+                    self._mark_task_status(db_path, task_id, "working")
+                    logger.info(
+                        "Task %s: review not approved (%s by %s), "
+                        "@mentioned assignee %s, back to working",
+                        task_id, verdict, reviewer, assignee
+                    )
+            finally:
+                conn.close()
+        except Exception as e:
+            logger.error("Task %s: handle_review_complete error: %s", task_id, e)

src/daemon/toolchain_handler.py

@@ -0,0 +1,256 @@
+"""toolchain_handler.py — 工具链事件 handler。
+
+处理 Gitea Webhook 事件（CI 失败、Review 请求、Issue 指派等）。
+"""
+from __future__ import annotations
+
+import json
+import logging
+import urllib.request
+from pathlib import Path
+from typing import Dict
+
+from src.daemon.base_task_handler import BaseTaskHandler, VerifyResult
+from src.daemon.prompt_composer import PromptComposer, PromptContext
+from src.daemon.toolchain_templates import render_template, _TEMPLATE_MAP
+from src.blackboard.db import get_connection
+
+logger = logging.getLogger("moziplus-v2.handler.toolchain")
+
+
+# ---------------------------------------------------------------------------
+# Toolchain PromptSections
+# ---------------------------------------------------------------------------
+
+class ToolchainContextSection:
+    """事件类型 + 事件详情（priority=10）"""
+
+    name: str = "toolchain_context"
+    priority: int = 10
+
+    def render(self, context: PromptContext) -> str:
+        event_type = context.event_type
+        event_data: Dict = context.event_data or {}
+
+        if event_type in _TEMPLATE_MAP:
+            # 使用模板引擎渲染已知事件
+            variables = {k: str(v) for k, v in event_data.items()}
+            return render_template(event_type, variables)
+
+        # fallback：通用事件描述
+        lines = [f"## 工具链事件", f""]
+        lines.append(f"- **事件类型**: {event_type or '未知'}")
+        if event_data:
+            lines.append(f"- **事件详情**:")
+            for key, value in event_data.items():
+                lines.append(f"  - {key}: {value}")
+        lines.append(f"")
+        return "\n".join(lines)
+
+    def should_include(self, context: PromptContext) -> bool:
+        return True
+
+
+class ToolchainApiSection:
+    """API 操作指令（priority=40），success_status=done"""
+
+    name: str = "toolchain_api"
+    priority: int = 40
+
+    API_HOST = "localhost:8083"
+
+    def render(self, context: PromptContext) -> str:
+        lines = [
+            "## API 操作指令",
+            "",
+            f"项目 ID: `{context.project_id}`",
+            f"任务 ID: `{context.task_id}`",
+            "",
+            "### 完成后必须更新任务状态",
+            "完成后务必通过以下命令将任务标记为 **done**：",
+            "```bash",
+            f'curl -s -X POST "http://{self.API_HOST}/api/projects/{context.project_id}/tasks/{context.task_id}/status" \\',
+            '  -H "Content-Type: application/json" \\',
+            '  -d \'{"status": "done"}\'',
+            "```",
+            "",
+            "### 提交产出",
+            "如有产出（如 review 结果、修复方案），提交到任务 outputs：",
+            "```bash",
+            f'curl -s -X POST "http://{self.API_HOST}/api/projects/{context.project_id}/tasks/{context.task_id}/outputs" \\',
+            '  -H "Content-Type: application/json" \\',
+            '  -d \'{"content": "<你的产出内容>", "type": "text"}\'',
+            "```",
+            "",
+        ]
+        return "\n".join(lines)
+
+    def should_include(self, context: PromptContext) -> bool:
+        return True
+
+
+class ToolchainConstraintsSection:
+    """硬约束（priority=50）"""
+
+    name: str = "toolchain_constraints"
+    priority: int = 50
+
+    def render(self, context: PromptContext) -> str:
+        lines = [
+            "## 硬约束",
+            "",
+            "1. **必须标 done**：处理完成后必须通过 API 将任务状态更新为 `done`，否则视为未完成",
+            "2. **产出不能为空**：必须提交有意义的产出（output 或 comment），不能只改状态",
+            "3. **单一职责**：只处理本次事件相关的操作，不要越界执行无关任务",
+            "4. **出错即报告**：如果无法处理（如权限不足、资源不存在），在 comment 中说明原因并标 done",
+            "5. **不要创建新任务**：工具链事件只处理当前事件，不衍生新任务",
+            "",
+        ]
+        return "\n".join(lines)
+
+    def should_include(self, context: PromptContext) -> bool:
+        return True
+
+
+# ---------------------------------------------------------------------------
+# ToolchainHandler
+# ---------------------------------------------------------------------------
+
+class ToolchainHandler(BaseTaskHandler):
+    """工具链事件 handler。"""
+
+    task_type = "toolchain"
+    virtual_project = "_toolchain"
+
+    def target_success_status(self) -> str:
+        return "done"
+
+    def pre_spawn(self, task_id: str, db_path: Path) -> bool:
+        """auto_working：pending → working"""
+        return self._auto_mark_working(task_id, db_path)
+
+    def get_sections(self) -> list:
+        """返回 3 个 Toolchain PromptSection 实例"""
+        return [
+            ToolchainContextSection(),
+            ToolchainApiSection(),
+            ToolchainConstraintsSection(),
+        ]
+
+    def build_prompt(self, context: PromptContext) -> str:
+        """通过 PromptComposer 拼装 sections 为最终 prompt"""
+        composer = PromptComposer()
+        composer.add_many(self.get_sections())
+        return composer.compose(context)
+
+    def verify_completion(self, task_id: str, db_path: Path) -> VerifyResult:
+        """检查行动输出（output 或 comment 有实质内容）"""
+        try:
+            conn = get_connection(db_path)
+            try:
+                # 检查 output
+                output_count = conn.execute(
+                    "SELECT COUNT(*) FROM outputs WHERE task_id=?", (task_id,)
+                ).fetchone()[0]
+                if output_count > 0:
+                    return VerifyResult(True, "has_output", f"output_count={output_count}")
+
+                # 检查 comment（非系统、有实质内容）
+                comment_count = conn.execute(
+                    "SELECT COUNT(*) FROM comments WHERE task_id=? "
+                    "AND author != 'system' AND LENGTH(content) >= 20",
+                    (task_id,)
+                ).fetchone()[0]
+                if comment_count > 0:
+                    return VerifyResult(True, "has_comment", f"comment_count={comment_count}")
+
+                return VerifyResult(False, "no_action", "output=0, comment=0")
+            finally:
+                conn.close()
+        except Exception as e:
+            logger.error("Toolchain %s: verify error: %s", task_id, e)
+            return VerifyResult(False, "verify_error", str(e))
+
+    def on_failure(self, task_id: str, agent_id: str,
+                   db_path: Path, verify: VerifyResult) -> None:
+        """验证失败 → 标 failed + Mail API 通知主公"""
+        self._mark_task_status(db_path, task_id, "failed")
+        logger.info("Toolchain %s: verify failed (%s), marked failed", task_id, verify.reason)
+
+        # 从 db 读取事件上下文
+        event_type = ""
+        event_data: Dict = {}
+        try:
+            conn = get_connection(db_path)
+            row = conn.execute(
+                "SELECT must_haves FROM tasks WHERE id=?", (task_id,)
+            ).fetchone()
+            if row and row["must_haves"]:
+                meta = json.loads(row["must_haves"])
+                event_type = meta.get("event_type", "")
+                raw = meta.get("event_data", "{}")
+                event_data = json.loads(raw) if isinstance(raw, str) else raw
+            conn.close()
+        except Exception:
+            pass
+
+        self._notify_via_mail_api(
+            task_id, verify.reason, verify.evidence,
+            event_type, event_data,
+        )
+
+    def _notify_via_mail_api(
+        self,
+        task_id: str,
+        reason: str,
+        evidence: str,
+        event_type: str,
+        event_data: Dict,
+    ) -> None:
+        """通过 Mail API 发送丰富的失败通知给主公。"""
+        # 构建行动指引
+        action_hint = "请检查黑板任务并手动处理。"
+        et_lower = event_type.lower()
+        if "ci" in et_lower or "deploy" in et_lower:
+            action_hint = "建议创建任务派给 jiangwei-infra 检查 CI/部署问题。"
+        elif "review" in et_lower:
+            action_hint = "建议查看 PR review 状态，必要时通知相关开发者。"
+        elif "issue" in et_lower:
+            action_hint = "建议创建任务派给对应开发者处理 Issue。"
+
+        # 构建事件详情
+        event_details = ""
+        if event_data:
+            event_details = "\n".join(
+                f"  - {k}: {v}" for k, v in event_data.items()
+            )
+
+        title = f"[toolchain-handler] 工具链事件处理失败: {task_id}"
+        text = (
+            f"任务 {task_id} 验证失败\n\n"
+            f"事件类型: {event_type or '未知'}\n"
+            f"事件详情:\n{event_details or '  (无)'}\n\n"
+            f"失败原因: {reason}\n"
+            f"证据: {evidence}\n\n"
+            f"黑板任务: http://localhost:8083/ → 项目 _toolchain → 任务 {task_id}\n\n"
+            f"行动指引: {action_hint}"
+        )
+
+        payload = json.dumps({
+            "from": "daemon",
+            "to": "pangtong-fujunshi",
+            "title": title,
+            "text": text,
+            "type": "inform",
+        }, ensure_ascii=False).encode("utf-8")
+
+        try:
+            req = urllib.request.Request(
+                "http://localhost:8083/api/mail",
+                data=payload,
+                headers={"Content-Type": "application/json"},
+            )
+            urllib.request.urlopen(req, timeout=5)
+            logger.info("Toolchain %s: sent failure notification via Mail API", task_id)
+        except Exception as e:
+            logger.warning("Toolchain %s: failed to notify via Mail API: %s", task_id, e)