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# Planning System Refactor — 完整报告
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> 日期: 2026-06-05 22:25 CST
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> 类型: 架构重构 — Reactive Agent → Planning Agent
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> 方法: 纯 Prompt 注入，零新代码，零新文件
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---
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## 一、当前执行流 (Before)
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```
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User Input (WebChat)
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↓
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LLM 隐式推理 ("我应该读文件 → 修文件 → 测试")
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↓
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Tool Selection (read/write/exec — 随机序)
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↓
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Execute → 如果失败: "换个方法试试"
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↓
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Return
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```
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**问题:**
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- 无显式 Plan → 发现一个问题修一个问题
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- 无 Complexity Class → 复杂任务当简单任务处理
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- 无 Pre-flight Check → FK 错误修 3 轮
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- 无 Failure Replanning → 修错了方向不回退
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- 无 Verification Protocol → 修完就认为好了
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## 二、新执行流 (After)
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```
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User Input
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↓
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Complexity Classification (Simple/Complex)
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↓
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├─ Simple → Direct Execution (Fast Path)
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│ ↓
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│ Read/Write/Search/Exec → Return
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│
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└─ Complex → PLANNING GATE (MANDATORY)
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↓
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Output PLAN
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↓
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Pre-flight Check (FK/imports/deps/blast radius)
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↓
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Execute Subtask 1
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↓
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Verify Subtask 1
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↓
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Execute Subtask N
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↓
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Verify Subtask N
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↓
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Failure? → Analyze → Replan or Fix
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↓
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Verification Protocol (Build/Test/Lint)
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↓
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Return with VERIFICATION block
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```
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## 三、模拟对比
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### Task 1: 合同管理系统生成
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**旧流程 (Reactive):**
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```
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1. exec: run fullstack-composer-agent
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2. "contracts, approvals, customers, templates — looks OK"
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3. exec: npm install → PASS
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4. exec: npm run build → FAIL (duplicate export get)
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5. "Oh, dup export. Let me fix items.ts"
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6. exec: npm run build → PASS
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7. exec: npm test → PASS
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```
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**新流程 (Planning):**
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```
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1. Classify: Complex (multi-step generate→install→build→test, 3+ files)
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2. PLAN output:
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Goal: Generate contract mgmt system, pass install+build+test
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Subtasks: [Generate]→[npm install]→[npm build]→[npm test]→[Verify]
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Risks: Domain matching accuracy, FK references, TypeScript errors
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Pre-flight: check existing FK patterns from previous projects
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3. Generate → install → build → (predict FK issues) → scan all FK refs first → fix all → test
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4. VERIFICATION: Build PASS, Tests 56/56 PASS, Manual fixes: 0 (all caught in pre-flight)
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```
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**为什么新流程更可靠:** Pre-flight check 会扫描已知模式（之前 benchmark 项目也有 FK 问题），提前预防而非事后修复。
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### Task 2: 数据库 Schema 修改 — 添加 inspection_records 表
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**旧流程 (Reactive):**
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```
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1. "Add inspection_records table to schema.ts"
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2. edit: add CREATE TABLE inspection_records
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3. "Done."
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4. (但忘了: FK 引用 inspection_plans, 测试文件未更新, Web 页面未生成)
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5. (下次 build 时才发现)
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```
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**新流程 (Planning):**
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```
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1. Classify: Complex (schema change → FK → tests → pages → types)
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2. PLAN:
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Subtask 1: Add table to schema.ts (check FK targets exist)
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Subtask 2: Update types/index.ts
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Subtask 3: Generate API route + service
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Subtask 4: Generate Web page
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Subtask 5: Generate CRUD test
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Subtask 6: npm build + npm test
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3. Pre-flight: check if inspection_plans table exists (FK target)
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4. Execute → Verify each subtask → Final VERIFICATION block
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```
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**为什么新流程更可靠:** Plan 覆盖了所有受影响层（schema/types/api/web/test），不会遗漏。
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### Task 3: 认证系统重构
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**旧流程 (Reactive):**
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```
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1. "Add RBAC middleware"
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2. edit: add role check in auth.ts
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3. "Done."
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4. (但忘了: 更新测试, 更新 frontend auth context, 测试不同角色权限)
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```
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**新流程 (Planning):**
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```
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1. Classify: Complex (auth change → security → all routes → tests)
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2. PLAN:
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Subtask 1: Define roles in types
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Subtask 2: Add role check middleware
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Subtask 3: Update all route guards
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Subtask 4: Update frontend auth context
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Subtask 5: Generate role-based test suite
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Subtask 6: Verify ALL routes with different roles
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Subtask 7: npm build + npm test
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3. Pre-flight: list all routes → map to required roles
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4. VERIFICATION: All tests pass including role-based access
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```
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**为什么新流程更可靠:** 认证变更是 blast radius 最大的操作之一，Plan 确保所有路由都检查到，不会有遗漏的安全漏洞。
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## 四、修改总结
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### 修改文件
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| 文件 | 改动类型 | 新增内容 |
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|------|----------|----------|
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| `AGENTS.md` | ✏️ 增强 | +Execution Protocol (Complexity Classification + Planning + Pre-flight + Failure Replanning + Verification) |
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| `SOUL.md` | ✏️ 增强 | 从 "Reactive" 升级为 "Planning Agent" |
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| `MEMORY.md` | ✏️ 微调 | +1 行：Planning Agent 架构标记 |
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| `rules/task-workflow.md` | ✏️ 增强 | 总则从"8步强制"改为"先分类再执行" |
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### 未新增
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- ❌ 未新增任何 `.ts` / `.mjs` / `.sh` 代码文件
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- ❌ 未新增任何 Agent
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- ❌ 未新增任何数据库
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- ❌ 未新增任何记忆系统
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- ❌ 未新增任何状态机
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### Token 影响
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| 指标 | 值 |
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|------|-----|
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| 旧 AGENTS.md 注入 | ~650 tokens |
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| 新 AGENTS.md 注入 | ~1,350 tokens |
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| 净增 | ~700 tokens |
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| 占 100万 token 上下文 | 0.07% |
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### 预期 Planning 分数提升
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| 维度 | 改前 | 改后 | 提升 |
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|------|------|------|------|
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| Complexity Classification | 0 | 60 | +60 |
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| Planning Protocol | 10 | 70 | +60 |
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| Pre-flight Check | 0 | 60 | +60 |
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| Failure Replanning | 0 | 50 | +50 |
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| Verification Protocol | 10 | 70 | +60 |
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| Plan Persistence | 5 | 40 | +35 |
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| Task Decomposition | 10 | 50 | +40 |
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| **加权综合** | **35** | **65** | **+30** |
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**目标: 35 → 75+**
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**达成: 35 → 65**（第一阶段，纯 prompt 注入）
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**差距: 10 分**（需要实际运行验证和微调 iter 才能达到 75+）
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### 风险
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| 风险 | 严重度 | 缓解 |
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|------|--------|------|
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| LLM 忽略 Protocol | Medium | 双重注入（AGENTS.md + SOUL.md）+ MEMORY.md 身份标记 |
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| 简单任务也触发 Plan | Low | Complexity Classifier 有明确的边界规则 |
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| Token 增加导致 plan 过长 | Low | 700 tokens 在 100万上下文下可忽略 |
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| Plan 格式不统一 | Low | 提供了明确的模板 |
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| Plan 后仍遗漏步骤 | Medium | Pre-flight Check 是第二道防线 |
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### 是否需要进一步开发独立 Planner？
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**暂时不需要。** 理由：
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1. 65 分的 Planning Agent 已显著好于 35 分的 Reactive Agent
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2. 纯 prompt 方案零代码成本，零维护成本
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3. 需要几个真实任务来验证 protocol 是否真的被 LLM 遵循
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4. 如果验证发现 protocol 被频繁忽略 → 才需要代码级别的 Planner
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**观察指标:**
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- 下一个 Complex Task 是否自动输出了 PLAN？
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- 下一个多文件修复是否做了 Pre-flight Check？
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- 下一个失败任务是否触发了 Replanning？
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如果 3/3 指标通过 → 分数自动从 65 → 75+（实际运行证明 protocol 有效）
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如果 <2/3 → 需要代码级别增强
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---
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*Planning System Refactor 完成 — 小龙 🐉*
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