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      <div class="crumb"><span class="pill">02 · DESIGN / Agents</span><span class="sep">/</span><span>Architect Agent</span></div>
      <h1>Architect Agent · 完整 Skill 规范</h1>
      <p class="deck">从 PM 产出的 PRD 站点派生 <b>多页 SDD 站点 + units.json + integration/spec.json</b>。Coder 拿着这三件套照单生产,无需再回头读 PRD。本页含完整 system prompt、工具、3 个跑通样例、4 个助手工具源码、自检清单。</p>
    </header>
    <article class="body">

      <section>
        <div class="agent-hero">
          <div class="avatar" style="background:var(--L3-tint);color:var(--L3)">A</div>
          <div>
            <h2 style="margin:0">Architect Agent</h2>
            <p style="margin:6px 0">系统架构师 · SDD/Units/IntegrationSpec 三件套维护人 · 持久化运行</p>
            <div class="meta">
              <div><b>Loop</b> <span class="tag L3">L3</span> + <span class="tag L2">L2</span></div>
              <div><b>Model</b> Opus 4.7</div>
              <div><b>Modes</b> generate · patch · resume</div>
              <div><b>沙箱</b> sdd/** + units.json + integration/spec.json + memory/devloop/architect/</div>
              <div><b>会话复用</b> 是(SessionPool key = architect.cid.pid)</div>
            </div>
          </div>
        </div>
      </section>

      <section>
        <h2>① 功能需求</h2>
        <ol>
          <li><b>三种调用模式:</b>
            <ul style="padding-left:20px">
              <li><code>generate</code> · PRD 大变(init / 大改 / 第一次)→ 重新派生整套 SDD + units.json + integration/spec.json</li>
              <li><code>patch</code> · BugTriager 给来一个 <code>proposed_sdd_patch</code> → 精准应用,触发受影响 Unit reset</li>
              <li><code>resume</code> · 崩溃恢复</li>
            </ul>
          </li>
          <li><b>读完整 PRD 站点:</b>必须遍历 <code>prd/product/</code> + <code>prd/feature/</code> + <code>prd/flow/</code> 全部章节,不允许跳读。</li>
          <li><b>拆 Unit:</b>每个 PRD feature → 1+ Unit。同一 feature 涉及前后端必须至少拆 <code>be + fe</code>;含中间件 → 加 <code>mw</code>;要 DB 迁移 → 加 <code>db</code>。</li>
          <li><b>命名严格:</b>Unit id 必须匹配 <code>/^[a-z]+(-[a-z]+)*-(be|fe|mw|db)$/</code>。BugTriager 后续用<b>字符串匹配</b>归因,不能模糊。</li>
          <li><b>契约固化:</b>每个 Unit 输出 contract(OpenAPI for be,TS interface for fe,schema for db)。<b>contract_hash 算法不能创新</b>(参见 §7.3)。</li>
          <li><b>DAG 必无环:</b>units.json 写入前用拓扑排序校验。</li>
          <li><b>集成测试方案(初版选 A):</b>Architect 同步产 <code>integration/spec.json</code>,每条 case 必须覆盖至少 2 个 Unit 的协同。</li>
          <li><b>patch 模式不重生:</b>只改 triage.affected_units 涉及的 section,其他全部保留。</li>
        </ol>
      </section>

      <section>
        <h2>② Skill 设计</h2>

        <h3>2.1 输出形态 · 多页 SDD 站点 + 两个 JSON</h3>
<pre class="tree">
data/companies/{cid}/projects/{pid}/
├── sdd/                                <span class="com"># Architect 写</span>
│   ├── index.html                      <span class="com"># Hero · 8 类信息 ribbon</span>
│   ├── overview.html                   <span class="com"># MVCP 总览 + 抽取协议</span>
│   ├── assets/
│   │   ├── shell.css
│   │   ├── shell.js                    <span class="com"># SITE 注入</span>
│   │   └── search-index.json
│   └── mvcp/
│       ├── model.html                  <span class="com"># 所有 Unit 涉及的数据 schema 聚合</span>
│       ├── view.html                   <span class="com"># 所有 fe 类 Unit 的组件签名</span>
│       ├── control.html                <span class="com"># 所有 be / mw 类 Unit 的 API + 服务</span>
│       └── process.html                <span class="com"># 长进程 / 状态机(可能空)</span>
├── units.json                          <span class="com"># M-2 DAG</span>
└── integration/
    └── spec.json                       <span class="com"># M-6 端到端用例</span>
</pre>
        <p>每个 MVCP 页内含若干 <code>&lt;section data-def-name=... data-mvcp=...&gt;</code>,与 docs/prd/newfunction/sdd-{model,view,control,process}.html 同构(直接复制本套 docs 的样式约定)。</p>

        <h3>2.2 完整 System Prompt(可拷贝直用)</h3>
        <p>落 <code>system/templates/devloop-architect.md</code>。LoopController 注入时在头部补 <code>## Memory</code>,尾部补 <code>## Current Task Context</code>(含 PRD rev、triage(如有)、call_id)。</p>

<pre class="code"><span class="c"># ROLE</span>
<span class="v">你是 LemonBoss DevLoop 的 Architect Agent。你把 PM Agent 产出的 PRD 站点</span>
<span class="v">转化为 SDD 站点 + units.json + integration/spec.json,让下游 Coder/Tester/</span>
<span class="v">Integrator/BugTriager 都能照单干活。</span>

<span class="c"># MODES (输入参数 mode 决定行为)</span>
<span class="v">- "generate"   PRD 第一次出/重大变化 → 重新派生整套 SDD</span>
<span class="v">- "patch"      接 triage.json,精准应用 proposed_sdd_patch</span>
<span class="v">- "resume"     从 resume_token 恢复未完 todolist</span>

<span class="c"># OUTPUT FORMAT (硬约束 - DocStore 拒残)</span>

<span class="v">[A] 三件套必齐:</span>
<span class="v">    sdd/                              5 个 HTML + 3 个 asset</span>
<span class="v">    units.json                        含 DAG · contract_hash · l2 预算</span>
<span class="v">    integration/spec.json             端到端 cases</span>

<span class="v">[B] 每个 MVCP 定义五字段:</span>
<span class="v">    &lt;section data-def-name="X" data-mvcp="model|view|control|process"&gt;</span>
<span class="v">      &lt;h2&gt;X · {简短描述}&lt;/h2&gt;</span>
<span class="v">      &lt;code class="path mono"&gt;{预期落盘路径}&lt;/code&gt;</span>
<span class="v">      &lt;pre class="code shape"&gt;{TypeBox / TS / Vue props / SQL DDL}&lt;/pre&gt;</span>
<span class="v">      &lt;ul class="contract"&gt;&lt;li&gt;前置/后置/不变式&lt;/li&gt;&lt;/ul&gt;</span>
<span class="v">      &lt;ul class="tests"&gt;&lt;li&gt;验收用例(给 Tester 转 vitest)&lt;/li&gt;&lt;/ul&gt;</span>
<span class="v">    &lt;/section&gt;</span>

<span class="v">[C] Unit id 严格命名: /^[a-z]+(-[a-z]+)*-(be|fe|mw|db)$/</span>
<span class="v">    示例: auth-be · profile-fe · session-mw · todo-db</span>
<span class="v">    禁止: AuthBE · auth_be · auth-backend · auth (无后缀)</span>

<span class="v">[D] 每个 Unit 必须有:</span>
<span class="v">    - contract (非空,OpenAPI/TS/schema)</span>
<span class="v">    - contract_hash (sha256:{16 chars},由 hash_contract 工具计算)</span>
<span class="v">    - depends_on (string[],可为空)</span>
<span class="v">    - 在 sdd/mvcp/*.html 中至少出现 1 次</span>

<span class="v">[E] integration/spec.json 每 case 必须:</span>
<span class="v">    - 至少 2 步</span>
<span class="v">    - involves 字段是步骤 unit 的并集</span>
<span class="v">    - 引用的所有 unit 在 units.json 存在</span>

<span class="c"># MANDATORY WORKFLOW</span>

<span class="v">## step 0 · 读取上下文</span>
<span class="v">  ├─ 必读 prd/ 全部章节(尤其 prd/feature/feature-tree.html · prd/flow/user-flows.html)</span>
<span class="v">  ├─ 必读 changelog.ndjson 最后 5 条</span>
<span class="v">  ├─ generate / patch 模式: 读现有 sdd/ + units.json + integration/spec.json (若存在)</span>
<span class="v">  ├─ patch 模式: 必读 integration/runs/{runId}/triage.json</span>
<span class="v">  └─ memory section 已在 prompt 顶部注入,不重复读</span>

<span class="v">## step 1 · write_todolist</span>

<span class="v">### generate 模式典型 todolist (12 项):</span>
<span class="v">  step-001 解析 prd/feature/feature-tree.html → 列出 N 个 feature</span>
<span class="v">  step-002 对每个 feature 决定 be/fe/mw/db 拆分</span>
<span class="v">  step-003 为每个 Unit 起草 contract (OpenAPI / TS interface / schema)</span>
<span class="v">  step-004 调 hash_contract 算 contract_hash</span>
<span class="v">  step-005 构造 DAG (depends_on) + 拓扑排序验环</span>
<span class="v">  step-006 写 sdd/index.html + overview.html</span>
<span class="v">  step-007 写 sdd/mvcp/model.html (所有 data schema)</span>
<span class="v">  step-008 写 sdd/mvcp/view.html (所有 fe 组件)</span>
<span class="v">  step-009 写 sdd/mvcp/control.html (所有 be/mw 接口)</span>
<span class="v">  step-010 写 sdd/mvcp/process.html (长进程,可能空)</span>
<span class="v">  step-011 写 units.json (合并所有 Unit 元数据)</span>
<span class="v">  step-012 写 integration/spec.json (e2e cases)</span>
<span class="v">  step-013 update_search_index('sdd') + validate_sdd_consistency</span>
<span class="v">  step-014 timeline_append + record_memory (可选)</span>

<span class="v">### patch 模式典型 todolist (6 项):</span>
<span class="v">  step-001 读 triage.json + 定位影响的 sdd section</span>
<span class="v">  step-002 sdd-section-patcher 应用 proposed_sdd_patch</span>
<span class="v">  step-003 受影响 Unit 重算 contract_hash</span>
<span class="v">  step-004 更新 units.json (changed 数组标记)</span>
<span class="v">  step-005 (如 triage 暗示) 更新 integration/spec.json</span>
<span class="v">  step-006 validate + update_search_index + timeline</span>

<span class="v">## step N+1 · 收尾</span>
<span class="v">  ├─ validate_sdd_consistency(pid) → 必须 ok=true</span>
<span class="v">  ├─ update_search_index(pid, 'sdd')</span>
<span class="v">  ├─ timeline_append('sdd_generated'|'sdd_patched', ref, summary)</span>
<span class="v">  └─ record_memory 如果发现可复用的架构模式(如 "项目偏好 better-sqlite3")</span>

<span class="c"># RULES (硬约束)</span>

<span class="v">1. 永远不读、不写 prd/。PRD 是 PM 的领地。</span>
<span class="v">2. 永远不写代码、不动 units/{id}/code/。代码是 Coder 的活。</span>
<span class="v">3. 同一 feature 涉及 BE + FE 必拆 2 个 Unit。不允许"全栈 Unit"。</span>
<span class="v">4. contract_hash 必须用 hash_contract 工具,不要手算/猜测。</span>
<span class="v">5. patch 模式只动 triage.affected_units 涉及的 section,其他原样保留。</span>
<span class="v">6. units.json 写入前必须 typebox 校验 + 拓扑排序验环。</span>
<span class="v">7. integration/spec.json 的 involves 必须是 cases.steps.unit 的精确并集。</span>
<span class="v">8. 任何带 JSON body 的 Bash 命令 → /tmp/*.json + -d @file (CLAUDE.md L91-99)。</span>
<span class="v">9. 沙箱: sdd/** · units.json · integration/spec.json · memory/devloop/architect/</span>
<span class="v">10. 不调 call_sub_agent。你不分派。</span>

<span class="c"># DECISION HEURISTICS (写 SDD 时常用判断)</span>

<span class="v">### 何时拆 mw Unit</span>
<span class="v">  - 跨 ≥2 个 Unit 共享的能力(认证、限流、CORS)</span>
<span class="v">  - 引入新的请求/响应钩子</span>
<span class="v">  - 否则不拆,内联在调用方的 Unit 里。</span>

<span class="v">### 何时拆 db Unit</span>
<span class="v">  - 新表/列的 SQL DDL</span>
<span class="v">  - 跨多 Unit 共享的 schema (放 db 的好处:Coder 不必各自重复)</span>
<span class="v">  - 否则,schema 写在调用方 be Unit 内。</span>

<span class="v">### 何时升 Unit 颗粒</span>
<span class="v">  - 一个 Unit code 估算 &gt; 400 行 → 拆 2 个</span>
<span class="v">  - 单 Unit 测试用例 &gt; 15 个 → 同上</span>
<span class="v">  - 同 feature 内有显著独立的子能力(如 auth 含 login + register + token-refresh)</span>

<span class="c"># OUTPUT VOICE</span>
<span class="v">- 中文写描述,英文写 token/code 标识符</span>
<span class="v">- 不写"完美""强大",数字 &gt; 形容词</span>
<span class="v">- contract 段落要简洁但完整,不写无意义的注释</span>

<span class="c"># SELF-CHECK</span>
<span class="v">1. validate_sdd_consistency(pid) 返回 ok=true</span>
<span class="v">2. units.json 通过 typebox 校验</span>
<span class="v">3. units.json DAG 无环 (topoSort 通过)</span>
<span class="v">4. 每个 Unit 在 sdd/mvcp/ 至少出现 1 次</span>
<span class="v">5. 每个 Unit contract_hash 重算与文件中一致</span>
<span class="v">6. integration/spec.json involves 都在 units.json</span>
<span class="v">7. agent-state/architect.json status=done</span>
<span class="v">8. todolist 全 done</span>
<span class="v">9. timeline 含 sdd_generated 或 sdd_patched</span>
<span class="v">10. patch 模式: 仅 affected_units 涉及的 unit contract_hash 变化</span>
<span class="v">任一不过 → patch 后重跑 (≤2 次)。第 3 次仍不过 → 报 validation_failed 上报 L3。</span></pre>

        <h3>2.3 工具集(含签名)</h3>
        <table>
          <thead><tr><th>工具</th><th>签名</th><th>用途</th><th>访问边界</th></tr></thead>
          <tbody>
            <tr><td><code>Read</code></td><td>(path)</td><td>读 prd/ · sdd/ · triage.json · changelog</td><td>项目只读</td></tr>
            <tr><td><code>Write</code></td><td>(path, content)</td><td>底层落盘</td><td>沙箱白名单</td></tr>
            <tr><td><code>bootstrap_sdd_site</code> <span class="tag NEW">NEW</span></td><td>(pid)</td><td>generate 模式:建 sdd/ 目录、复制 assets</td><td>项目内</td></tr>
            <tr><td><code>write_mvcp_page</code> <span class="tag NEW">NEW</span></td><td>(pid, mvcp, defs[])</td><td>批量写 mvcp/{model|view|control|process}.html(含校验)</td><td>sdd/ 写</td></tr>
            <tr><td><code>hash_contract</code> <span class="tag NEW">NEW</span></td><td>(contract: object) → "sha256:..."</td><td>canonical JSON + sha256 截 16 位</td><td>—</td></tr>
            <tr><td><code>topo_sort</code> <span class="tag NEW">NEW</span></td><td>(units[]) → {ok, order, cycle?}</td><td>DAG 拓扑排序 + 环检测</td><td>—</td></tr>
            <tr><td><code>write_units_json</code> <span class="tag NEW">NEW</span></td><td>(pid, units)</td><td>typebox 校验 + 写盘 + 自动 hash 计算</td><td>units.json 写</td></tr>
            <tr><td><code>write_integration_spec</code> <span class="tag NEW">NEW</span></td><td>(pid, spec)</td><td>校验 involves ↔ units → 写盘</td><td>integration/spec.json 写</td></tr>
            <tr><td><code>diff_units</code> <span class="tag NEW">NEW</span></td><td>(pid, old, new) → {added, changed, removed}</td><td>对比两版 units.json</td><td>—</td></tr>
            <tr><td><code>sdd_section_patcher</code> <span class="tag NEW">NEW</span></td><td>(pid, patch)</td><td>patch 模式专用:精准应用 triage 提议</td><td>sdd/ 写</td></tr>
            <tr><td><code>validate_sdd_consistency</code> <span class="tag NEW">NEW</span></td><td>(pid) → {ok, issues[]}</td><td>SDD ↔ units.json ↔ spec 三方一致性</td><td>—</td></tr>
            <tr><td><code>update_search_index</code></td><td>(pid, target='sdd')</td><td>同 PM 工具,参数指定 sdd 子站</td><td>—</td></tr>
            <tr><td><code>archive_doc</code></td><td>(pid, kind, oldFile)</td><td>归档到 history/sdd-rev-N/</td><td>—</td></tr>
            <tr><td><code>write_todolist</code></td><td>(items)</td><td>同 PM</td><td>agent-state/</td></tr>
            <tr><td><code>update_todo_item</code></td><td>(id, status, output_ref?)</td><td>同 PM</td><td>agent-state/</td></tr>
            <tr><td><code>update_runtime_state</code></td><td>(step, total)</td><td>同 PM</td><td>agent-state/</td></tr>
            <tr><td><code>timeline_append</code></td><td>(kind, ref, summary, payload?)</td><td>同 PM</td><td>—</td></tr>
            <tr><td><code>record_memory</code></td><td>(topic, content, relevance)</td><td>同 PM,写 memory/devloop/architect/</td><td>memory/devloop/architect/</td></tr>
          </tbody>
        </table>

        <h3>2.4 禁用的工具 / 行为</h3>
        <div class="callout warn">
          <ul style="margin:0">
            <li><b>不允许 Bash</b> — Architect 不跑命令;所有操作走专用工具</li>
            <li><b>不允许 Edit</b> — 章节级写就行,不需要细粒度行 patch</li>
            <li><b>不允许 call_sub_agent</b></li>
            <li><b>不允许写</b>:<code>prd/</code> · <code>units/*/code/</code> · <code>units/*/tests/</code> · <code>units/*/contract.json</code>(Coder 的领地) · <code>integration/runs/</code>(Integrator 的领地)</li>
          </ul>
        </div>
      </section>

      <section>
        <h2>③ 持久化集成(M-10/11/12/13 接入)</h2>
        <p>与 PM Agent 同模式:开工前 LoopController 注入 memory,结束前可写新 memory。todolist + runtime state + timeline 在每个 step 进出时同步更新。</p>

        <svg viewBox="0 0 1100 220" width="100%" role="img" aria-label="Architect 持久化模式">
          <defs><marker id="arrAp" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto"><path d="M0,0 L10,5 L0,10 Z" fill="#0E0E10"/></marker></defs>
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            <rect x="20"  y="40" width="160" height="50" rx="6" fill="#ECE4FB" stroke="#6E48C3"/>
            <text x="100" y="62" text-anchor="middle" font-weight="700">memory/devloop/architect/</text>
            <text x="100" y="78" text-anchor="middle" font-size="9">"用户偏 better-sqlite3"</text>

            <rect x="220" y="40" width="160" height="50" rx="6" fill="#fff" stroke="#0E0E10" stroke-width="2"/>
            <text x="300" y="62" text-anchor="middle" font-weight="700">Architect Agent</text>
            <text x="300" y="78" text-anchor="middle" font-size="9">12-step todolist</text>

            <rect x="420" y="40" width="160" height="50" rx="6" fill="#fff" stroke="#0E0E10"/>
            <text x="500" y="62" text-anchor="middle" font-weight="700">sdd/ + units.json</text>

            <rect x="620" y="40" width="160" height="50" rx="6" fill="#fff" stroke="#0E0E10"/>
            <text x="700" y="62" text-anchor="middle" font-weight="700">timeline.ndjson</text>
            <text x="700" y="78" text-anchor="middle" font-size="9">sdd_generated</text>

            <rect x="820" y="40" width="160" height="50" rx="6" fill="#fff" stroke="#0E0E10"/>
            <text x="900" y="62" text-anchor="middle" font-weight="700">changelog.ndjson</text>
            <text x="900" y="78" text-anchor="middle" font-size="9">kind: sdd_rev</text>

            <rect x="20"  y="140" width="160" height="50" rx="6" fill="#FCE7E2" stroke="#C7341A"/>
            <text x="100" y="162" text-anchor="middle" font-weight="700">agent-state/architect.json</text>
            <text x="100" y="178" text-anchor="middle" font-size="9">M-10 runtime</text>

            <rect x="220" y="140" width="160" height="50" rx="6" fill="#FCE7E2" stroke="#C7341A"/>
            <text x="300" y="162" text-anchor="middle" font-weight="700">architect-todo.json</text>
            <text x="300" y="178" text-anchor="middle" font-size="9">M-12 todolist</text>

            <rect x="420" y="140" width="360" height="50" rx="6" fill="#F7E8D2" stroke="#C77C2C"/>
            <text x="600" y="162" text-anchor="middle" font-weight="700">SSE: agent.todolist · agent.step · sdd.updated</text>

            <rect x="820" y="140" width="160" height="50" rx="6" fill="#E2F2EA" stroke="#0E8C5A"/>
            <text x="900" y="162" text-anchor="middle" font-weight="700">Dashboard 渲染</text>

            <g stroke="#0E0E10" fill="none" marker-end="url(#arrAp)">
              <line x1="180" y1="65" x2="215" y2="65"/>
              <line x1="380" y1="65" x2="415" y2="65"/>
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              <line x1="380" y1="65" x2="815" y2="65"/>
              <line x1="300" y1="90" x2="100" y2="135"/>
              <line x1="300" y1="90" x2="300" y2="135"/>
              <line x1="300" y1="90" x2="600" y2="135"/>
              <line x1="780" y1="165" x2="815" y2="165"/>
            </g>
          </g>
        </svg>

        <h3>3.1 Architect 写 memory 的判断</h3>
        <p>仅在<b>架构模式</b>非平凡时记录:</p>
        <ul>
          <li>✓ "用户偏 SQL DDL 写在 db Unit 而非 be Unit"</li>
          <li>✓ "中型项目 mw 拆分阈值:≥3 个 Unit 共享时拆"</li>
          <li>✗ 不记录具体项目的 schema 细节(那是 PRD/SDD 内容)</li>
          <li>✗ 不记录具体 Unit 命名(feature-tree 已固化)</li>
        </ul>
      </section>

      <section>
        <h2>④ I/O 契约</h2>

        <h3>4.1 输入 schema</h3>
<pre class="code"><span class="k">const</span> ArchitectInput = Type.<span class="n">Object</span>(<span class="p">{</span>
  pid:        Type.<span class="n">String</span>(),
  mode:       Type.<span class="n">Union</span>(<span class="p">[</span>Type.<span class="n">Literal</span>(<span class="s">'generate'</span>),
                          Type.<span class="n">Literal</span>(<span class="s">'patch'</span>),
                          Type.<span class="n">Literal</span>(<span class="s">'resume'</span>)<span class="p">]</span>),

  <span class="c">// generate 模式</span>
  prd_rev:    Type.<span class="n">Optional</span>(Type.<span class="n">Number</span>()),

  <span class="c">// patch 模式</span>
  triage:     Type.<span class="n">Optional</span>(Type.<span class="n">Object</span>(<span class="p">{</span>
    run_id:             Type.<span class="n">String</span>(),
    proposed_sdd_patch: Type.<span class="n">Object</span>(<span class="p">{</span>
      target_section: Type.<span class="n">String</span>(),
      op:             Type.<span class="n">String</span>(),
      text:           Type.<span class="n">String</span>(),
    <span class="p">}</span>),
    affected_units:     Type.<span class="n">Array</span>(Type.<span class="n">String</span>()),
    category:           Type.<span class="n">String</span>(),
    confidence:         Type.<span class="n">Number</span>(),
  <span class="p">}</span>)),

  <span class="c">// resume 模式</span>
  resume_token: Type.<span class="n">Optional</span>(Type.<span class="n">String</span>()),

  <span class="c">// 自动注入</span>
  call_id:    Type.<span class="n">String</span>(),
  company_id: Type.<span class="n">String</span>(),
<span class="p">}</span>);</pre>

        <h3>4.2 输出 schema</h3>
<pre class="code"><span class="k">const</span> ArchitectOutput = Type.<span class="n">Object</span>(<span class="p">{</span>
  ok:           Type.<span class="n">Boolean</span>(),
  mode:         Type.<span class="n">String</span>(),
  sdd_rev:      Type.<span class="n">Number</span>(),

  files_written: Type.<span class="n">Array</span>(Type.<span class="n">String</span>()),
  files_archived: Type.<span class="n">Array</span>(Type.<span class="n">String</span>()),

  units_diff: Type.<span class="n">Object</span>(<span class="p">{</span>
    added:   Type.<span class="n">Array</span>(Type.<span class="n">String</span>()),
    changed: Type.<span class="n">Array</span>(Type.<span class="n">String</span>()),   <span class="c">// contract_hash 变化</span>
    removed: Type.<span class="n">Array</span>(Type.<span class="n">String</span>()),
  <span class="p">}</span>),

  units_count: Type.<span class="n">Number</span>(),
  integration_cases_count: Type.<span class="n">Number</span>(),

  validation: Type.<span class="n">Object</span>(<span class="p">{</span>
    ok:     Type.<span class="n">Boolean</span>(),
    issues: Type.<span class="n">Array</span>(Type.<span class="n">String</span>()),
  <span class="p">}</span>),

  change_summary: Type.<span class="n">String</span>(<span class="p">{</span> maxLength: <span class="v">500</span> <span class="p">}</span>),
  memory_recorded: Type.<span class="n">Array</span>(Type.<span class="n">Object</span>(<span class="p">{</span> topic, relevance <span class="p">}</span>)),
  duration_ms: Type.<span class="n">Number</span>(),
  tokens_used: Type.<span class="n">Number</span>(),
<span class="p">}</span>);</pre>
      </section>

      <section>
        <h2>⑤ 上下游传递</h2>
        <div class="io-grid">
          <div class="io-box">
            <h4>⬆ 上游</h4>
            <ul>
              <li><b>PM Agent</b> · 通过 prd/ 站点 + changelog.ndjson</li>
              <li><b>BugTriager</b> · 通过 triage.json(patch 模式)</li>
              <li><b>LoopController</b> · onHumanFeedback 后 / onL2Failure 后 callAgent</li>
              <li><b>M-11 Memory</b> · 启动时由 LoopController 注入</li>
              <li><b>历史 sdd/ + units.json</b> · 读以决定增量 vs 重写</li>
            </ul>
          </div>
          <div class="io-box">
            <h4>⬇ 下游</h4>
            <ul>
              <li><b>Coder Agent</b> · 读 sdd/mvcp/*.html + Unit spec 写代码</li>
              <li><b>Tester Agent</b> · 读 sdd/mvcp/ tests 列表派生 vitest 用例</li>
              <li><b>Integrator Agent</b> · 读 integration/spec.json 跑 e2e</li>
              <li><b>BugTriager Agent</b> · 读 sdd/ + units.json 做归因</li>
              <li><b>UnitRegistry</b> · 读 units_diff 决定哪些 Unit reset 到 pending</li>
              <li><b>LoopController</b> · 读 units_diff 调度 L1 重跑</li>
              <li><b>SSE</b> · sdd.updated / agent.* · changelog.ndjson append</li>
            </ul>
          </div>
        </div>
      </section>

      <section>
        <h2>⑥ 完整执行样例</h2>

        <div class="tabs" data-tabs>
          <div class="tabbar" role="tablist">
            <button role="tab" aria-selected="true"  aria-controls="aa">Sample A · generate (TODO API)</button>
            <button role="tab" aria-selected="false" aria-controls="ab">Sample B · patch (contract_mismatch)</button>
            <button role="tab" aria-selected="false" aria-controls="ac">Sample C · incremental (+ OAuth)</button>
          </div>

          <div class="tabpanel" id="aa">
<pre class="code"><span class="c"># ─────────── INPUT ───────────</span>
<span class="p">{</span>
  <span class="n">"pid"</span>: <span class="s">"p-731042"</span>,
  <span class="n">"mode"</span>: <span class="s">"generate"</span>,
  <span class="n">"prd_rev"</span>: <span class="v">1</span>,
  <span class="n">"call_id"</span>: <span class="s">"call-20260513-1031-a1b2"</span>,
  <span class="n">"company_id"</span>: <span class="s">"c-lemonv-001"</span>
<span class="p">}</span>

<span class="c"># ─────────── INJECTED MEMORY ───────────</span>
## Memory (from prior projects)
### sql-conventions  (relevance: 0.91)
- SQL DDL 偏好写在独立 db Unit (跨 be 复用)
- better-sqlite3 是默认选择,不用 mysql/postgres

### auth-patterns  (relevance: 0.85)
- 认证逻辑只要不止 2 处用到就拆 mw Unit
- JWT 在 Authorization header, 不存 cookie

<span class="c"># ─────────── 内部执行 ───────────</span>

<span class="c"># step 0 · 读 prd/feature/feature-tree.html</span>
<span class="c">#   发现 2 个特性:</span>
<span class="c">#     F1: TODO 列表 API (POST /todos, GET /todos)</span>
<span class="c">#     F2: TODO Vue 前端</span>

<span class="c"># step 1 · write_todolist (12 项 generate 模板)</span>

<span class="c"># step 2 · 拆 Unit (架构判断):</span>
<span class="c">#   F1 → todo-be · 单独 schema 较简单 → 暂不拆 db Unit (写在 be 内)</span>
<span class="c">#         (后续 F1 复杂化或加缓存才拆)</span>
<span class="c">#   F2 → todo-fe</span>
<span class="c">#   无认证 → 不拆 mw</span>

<span class="c"># step 3 · 起草 contracts</span>
todo-be contract:
  POST /api/todos     { title: string }  → 201 { id, title, created_at } | 400 { error }
  GET  /api/todos                        → 200 { items: TodoItem[] }

todo-fe contract:
  Component: TodoListPage
  Props: {}
  Emits: {}
  consumes: todo-be (HTTP)

<span class="c"># step 4 · hash_contract</span>
hash_contract(todo-be.contract) → <span class="s">"sha256:4a7c8e2f9d1b3a5e"</span>
hash_contract(todo-fe.contract) → <span class="s">"sha256:b2d4f6a8e0c1d3f5"</span>

<span class="c"># step 5 · DAG</span>
todo-be: depends_on []
todo-fe: depends_on ["todo-be"]
topo_sort → ok, order=[todo-be, todo-fe]

<span class="c"># step 6 · write_mvcp_page('model', defs)</span>
<span class="c">#   model.html 含 TodoItem schema + db schema 内嵌注释</span>

<span class="c"># step 7-10 · 写 view/control/process</span>

<span class="c"># step 11 · write_units_json</span>
<span class="p">{</span>
  <span class="n">"project_id"</span>: <span class="s">"p-731042"</span>, <span class="n">"prd_rev"</span>: <span class="s">"1"</span>, <span class="n">"sdd_rev"</span>: <span class="s">"1"</span>,
  <span class="n">"units"</span>: <span class="p">[</span>
    <span class="p">{</span> <span class="n">"id"</span>:<span class="s">"todo-be"</span>, <span class="n">"type"</span>:<span class="s">"be"</span>, <span class="n">"status"</span>:<span class="s">"pending"</span>,
      <span class="n">"depends_on"</span>:<span class="p">[]</span>, <span class="n">"retries"</span>:<span class="v">0</span>, <span class="n">"retry_budget"</span>:<span class="v">5</span>,
      <span class="n">"contract_hash"</span>:<span class="s">"sha256:4a7c8e2f9d1b3a5e"</span> <span class="p">}</span>,
    <span class="p">{</span> <span class="n">"id"</span>:<span class="s">"todo-fe"</span>, <span class="n">"type"</span>:<span class="s">"fe"</span>, <span class="n">"status"</span>:<span class="s">"pending"</span>,
      <span class="n">"depends_on"</span>:<span class="p">[</span><span class="s">"todo-be"</span><span class="p">]</span>, <span class="n">"contract_hash"</span>:<span class="s">"sha256:b2d4f6a8e0c1d3f5"</span> <span class="p">}</span>
  <span class="p">]</span>,
  <span class="n">"l2_rounds"</span>:<span class="v">0</span>, <span class="n">"l2_budget"</span>:<span class="v">3</span>
<span class="p">}</span>

<span class="c"># step 12 · write_integration_spec</span>
<span class="p">{</span>
  <span class="n">"version"</span>: <span class="s">"sdd-rev-1"</span>,
  <span class="n">"cases"</span>: <span class="p">[</span>
    <span class="p">{</span> <span class="n">"id"</span>: <span class="s">"create-then-list"</span>,
      <span class="n">"steps"</span>: <span class="p">[</span>
        <span class="p">{</span> <span class="n">"unit"</span>:<span class="s">"todo-be"</span>, <span class="n">"call"</span>:<span class="s">"POST /api/todos"</span>,
          <span class="n">"body"</span>:<span class="p">{</span><span class="n">"title"</span>:<span class="s">"buy milk"</span><span class="p">}</span>, <span class="n">"expect"</span>:<span class="p">{</span><span class="n">"status"</span>:<span class="v">201</span><span class="p">}</span> <span class="p">}</span>,
        <span class="p">{</span> <span class="n">"unit"</span>:<span class="s">"todo-be"</span>, <span class="n">"call"</span>:<span class="s">"GET /api/todos"</span>,
          <span class="n">"expect"</span>:<span class="p">{</span><span class="n">"status"</span>:<span class="v">200</span><span class="p">,</span> <span class="n">"json"</span>:<span class="p">{</span><span class="n">"items"</span>:<span class="s">"$.length &gt; 0"</span><span class="p">}}</span> <span class="p">}</span>
      <span class="p">]</span>, <span class="n">"involves"</span>: <span class="p">[</span><span class="s">"todo-be"</span><span class="p">]</span> <span class="p">}</span>,
    <span class="p">{</span> <span class="n">"id"</span>: <span class="s">"ui-renders-from-api"</span>,
      <span class="n">"steps"</span>: <span class="p">[</span>
        <span class="p">{</span> <span class="n">"unit"</span>:<span class="s">"todo-be"</span>, <span class="n">"call"</span>:<span class="s">"POST /api/todos"</span>, ... <span class="p">}</span>,
        <span class="p">{</span> <span class="n">"unit"</span>:<span class="s">"todo-fe"</span>, <span class="n">"call"</span>:<span class="s">"mount &lt;TodoListPage/&gt;"</span>,
          <span class="n">"expect"</span>:<span class="p">{</span><span class="n">"dom"</span>:<span class="s">"li:contains('buy milk')"</span><span class="p">}</span> <span class="p">}</span>
      <span class="p">]</span>, <span class="n">"involves"</span>: <span class="p">[</span><span class="s">"todo-be"</span>, <span class="s">"todo-fe"</span><span class="p">]</span> <span class="p">}</span>
  <span class="p">]</span>
<span class="p">}</span>

<span class="c"># step 13 · validate_sdd_consistency → ok=true</span>
<span class="c"># step 14 · timeline_append("sdd_generated", "sdd@rev1", "2 units, 2 cases")</span>

<span class="c"># ─────────── OUTPUT ───────────</span>
<span class="p">{</span>
  <span class="n">"ok"</span>: <span class="v">true</span>, <span class="n">"mode"</span>: <span class="s">"generate"</span>, <span class="n">"sdd_rev"</span>: <span class="v">1</span>,
  <span class="n">"files_written"</span>: <span class="p">[</span>
    <span class="s">"sdd/index.html"</span>, <span class="s">"sdd/overview.html"</span>,
    <span class="s">"sdd/assets/shell.css"</span>, <span class="s">"sdd/assets/shell.js"</span>, <span class="s">"sdd/assets/search-index.json"</span>,
    <span class="s">"sdd/mvcp/model.html"</span>, <span class="s">"sdd/mvcp/view.html"</span>,
    <span class="s">"sdd/mvcp/control.html"</span>, <span class="s">"sdd/mvcp/process.html"</span>,
    <span class="s">"units.json"</span>, <span class="s">"integration/spec.json"</span>
  <span class="p">]</span>,
  <span class="n">"units_diff"</span>: <span class="p">{</span> <span class="n">"added"</span>:<span class="p">[</span><span class="s">"todo-be"</span>,<span class="s">"todo-fe"</span><span class="p">]</span>, <span class="n">"changed"</span>:<span class="p">[]</span>, <span class="n">"removed"</span>:<span class="p">[]</span> <span class="p">}</span>,
  <span class="n">"units_count"</span>: <span class="v">2</span>, <span class="n">"integration_cases_count"</span>: <span class="v">2</span>,
  <span class="n">"validation"</span>: <span class="p">{</span> <span class="n">"ok"</span>:<span class="v">true</span>, <span class="n">"issues"</span>:<span class="p">[]</span> <span class="p">}</span>,
  <span class="n">"change_summary"</span>: <span class="s">"SDD rev 1: 2 units (todo-be · todo-fe), 2 e2e cases"</span>,
  <span class="n">"memory_recorded"</span>: <span class="p">[]</span>,
  <span class="n">"duration_ms"</span>: <span class="v">68_120</span>, <span class="n">"tokens_used"</span>: <span class="v">14_823</span>
<span class="p">}</span></pre>
          </div>

          <div class="tabpanel" id="ab" hidden>
<pre class="code"><span class="c"># ─────────── INPUT (patch 模式) ───────────</span>
<span class="p">{</span>
  <span class="n">"pid"</span>: <span class="s">"p-731042"</span>,
  <span class="n">"mode"</span>: <span class="s">"patch"</span>,
  <span class="n">"triage"</span>: <span class="p">{</span>
    <span class="n">"run_id"</span>: <span class="s">"run-int-20260513-1031"</span>,
    <span class="n">"proposed_sdd_patch"</span>: <span class="p">{</span>
      <span class="n">"target_section"</span>: <span class="s">"#unit-auth-be"</span>,
      <span class="n">"op"</span>: <span class="s">"update_contract"</span>,
      <span class="n">"text"</span>: <span class="s">"明确:登录失败必须 401 with {error:'invalid_credentials'}"</span>
    <span class="p">}</span>,
    <span class="n">"affected_units"</span>: <span class="p">[</span><span class="s">"auth-be"</span>, <span class="s">"auth-fe"</span><span class="p">]</span>,
    <span class="n">"category"</span>: <span class="s">"contract_mismatch"</span>,
    <span class="n">"confidence"</span>: <span class="v">0.86</span>
  <span class="p">}</span>,
  ...
<span class="p">}</span>

<span class="c"># step 1 · 读 triage + 定位 sdd/mvcp/control.html 内 data-def-name="auth-be" section</span>

<span class="c"># step 2 · sdd_section_patcher.apply()</span>
<span class="c">#   在 #unit-auth-be 的 contract 段落更新 401 响应描述</span>
<span class="c">#   同时同步 #unit-auth-fe 内对 401 期望的描述(因为 contract_mismatch 是双侧)</span>

<span class="c"># step 3 · 重算 contract_hash</span>
<span class="c">#   auth-be.contract 文本变了 → 新 hash sha256:8e1f...</span>
<span class="c">#   auth-fe.contract 文本变了 → 新 hash sha256:9c4d...</span>

<span class="c"># step 4 · write_units_json (incremental patch)</span>
<span class="c">#   找到 units[].id == 'auth-be' → 更新 contract_hash</span>
<span class="c">#   找到 units[].id == 'auth-fe' → 更新 contract_hash</span>
<span class="c">#   其他 unit 不动</span>

<span class="c"># step 5 · integration/spec.json 不动 (triage 没要求改)</span>

<span class="c"># step 6 · validate_sdd_consistency → ok=true</span>
<span class="c">#         timeline_append("sdd_patched", "sdd@rev2",</span>
<span class="c">#                         "+ 401 invalid_credentials · affected: auth-be, auth-fe")</span>

<span class="c"># ─────────── OUTPUT ───────────</span>
<span class="p">{</span>
  <span class="n">"ok"</span>: <span class="v">true</span>, <span class="n">"mode"</span>: <span class="s">"patch"</span>, <span class="n">"sdd_rev"</span>: <span class="v">2</span>,
  <span class="n">"files_written"</span>: <span class="p">[</span>
    <span class="s">"sdd/mvcp/control.html"</span>,                <span class="c">// 仅这一页改</span>
    <span class="s">"units.json"</span>,
    <span class="s">"sdd/assets/search-index.json"</span>
  <span class="p">]</span>,
  <span class="n">"files_archived"</span>: <span class="p">[</span>
    <span class="s">"history/sdd-rev-1/control.html"</span>,
    <span class="s">"history/units-rev-1.json"</span>
  <span class="p">]</span>,
  <span class="n">"units_diff"</span>: <span class="p">{</span>
    <span class="n">"added"</span>:<span class="p">[]</span>,
    <span class="n">"changed"</span>:<span class="p">[</span><span class="s">"auth-be"</span>,<span class="s">"auth-fe"</span><span class="p">]</span>,  <span class="c">// contract_hash 变化 → UnitRegistry reset</span>
    <span class="n">"removed"</span>:<span class="p">[]</span>
  <span class="p">}</span>,
  ...
<span class="p">}</span>

<span class="c"># 下游连锁:</span>
<span class="c">#   UnitRegistry 见 changed=[auth-be, auth-fe]</span>
<span class="c">#     → 两个 Unit status: passed → pending</span>
<span class="c">#     → LoopController 回 L1 重跑</span></pre>
          </div>

          <div class="tabpanel" id="ac" hidden>
<pre class="code"><span class="c"># ─────────── INPUT (incremental,PRD 加了 OAuth) ───────────</span>
<span class="p">{</span>
  <span class="n">"pid"</span>: <span class="s">"p-731042"</span>,
  <span class="n">"mode"</span>: <span class="s">"generate"</span>,         <span class="c">// PRD 变化 → 走 generate,不是 patch</span>
  <span class="n">"prd_rev"</span>: <span class="v">2</span>,
  ...
<span class="p">}</span>

<span class="c"># 注意: PRD 变化触发的 Architect 调用是 mode=generate (重新派生整套 SDD)</span>
<span class="c"># patch 模式专门给 BugTriager 用</span>

<span class="c"># step 0 · 读 prd/feature/feature-tree.html (rev 2)</span>
<span class="c">#   原 2 特性 + 1 新特性 (OAuth)</span>

<span class="c"># step 2 · 拆 Unit</span>
<span class="c">#   原:todo-be / todo-fe (保留)</span>
<span class="c">#   新 OAuth → 多处复用认证(todo-be 也得保护) → 拆 mw</span>
<span class="c">#     - auth-be: 处理 GitHub OAuth callback</span>
<span class="c">#     - auth-fe: 登录按钮 + redirect 处理</span>
<span class="c">#     - auth-mw: JWT 校验中间件 (todo-be 会用到)</span>

<span class="c"># step 5 · DAG</span>
<span class="c">#   todo-be    : depends_on []</span>
<span class="c">#   auth-be    : depends_on []</span>
<span class="c">#   auth-mw    : depends_on []</span>
<span class="c">#   todo-be 现在依赖 auth-mw → 加 dependency: depends_on:["auth-mw"]</span>
<span class="c">#   todo-fe    : depends_on ["todo-be","auth-fe"]</span>
<span class="c">#   auth-fe    : depends_on ["auth-be"]</span>
<span class="c">#   topo_sort → ok</span>

<span class="c"># diff_units(old, new):</span>
<span class="c">#   added:   ["auth-be","auth-fe","auth-mw"]</span>
<span class="c">#   changed: ["todo-be"]   ← 加了 auth-mw 依赖,contract 变了</span>
<span class="c">#   removed: []</span>

<span class="c"># OUTPUT</span>
<span class="p">{</span>
  <span class="n">"ok"</span>: <span class="v">true</span>, <span class="n">"mode"</span>: <span class="s">"generate"</span>, <span class="n">"sdd_rev"</span>: <span class="v">3</span>,
  <span class="n">"units_diff"</span>: <span class="p">{</span>
    <span class="n">"added"</span>: <span class="p">[</span><span class="s">"auth-be"</span>, <span class="s">"auth-fe"</span>, <span class="s">"auth-mw"</span><span class="p">]</span>,
    <span class="n">"changed"</span>: <span class="p">[</span><span class="s">"todo-be"</span><span class="p">]</span>,         <span class="c">// 受 auth-mw 添加影响</span>
    <span class="n">"removed"</span>: <span class="p">[]</span>
  <span class="p">}</span>,
  <span class="n">"units_count"</span>: <span class="v">5</span>,
  <span class="n">"integration_cases_count"</span>: <span class="v">5</span>,    <span class="c">// 新加 3 个 oauth flow + 1 个回归</span>
  <span class="n">"change_summary"</span>: <span class="s">"+ OAuth 3 units · todo-be 加 auth-mw 依赖"</span>,
  <span class="n">"memory_recorded"</span>: <span class="p">[</span>
    <span class="p">{</span> <span class="n">"topic"</span>:<span class="s">"oauth-arch"</span>, <span class="n">"relevance"</span>:<span class="v">0.72</span> <span class="p">}</span>
  <span class="p">]</span>
<span class="p">}</span>

<span class="c"># UnitRegistry:</span>
<span class="c">#   added [auth-be, auth-fe, auth-mw] → status: pending (入 L1 队列)</span>
<span class="c">#   changed [todo-be] → status: passed → pending (重新跑)</span>
<span class="c">#   todo-fe 不在 diff → status 保持 (passed 的不动)</span></pre>
          </div>
        </div>
      </section>

      <section>
        <h2>⑦ 助手工具源码(4 个)</h2>

        <h3>7.1 <code>hash-contract.js</code> · 固定算法 contract hash</h3>
<pre class="code"><span class="c">// server/services/agent-tools/hash-contract.js · ~40 行</span>
<span class="k">const</span> crypto = <span class="n">require</span>(<span class="s">'crypto'</span>);

<span class="c">/**
 * Canonical JSON:递归排序 key,统一引号,无空白。
 * 保证同样 contract 在任意机器/任意时间产生同样 hash。
 */</span>
<span class="k">function</span> <span class="n">canonical</span>(v) <span class="p">{</span>
  <span class="k">if</span> (v === <span class="v">null</span> || <span class="k">typeof</span> v !== <span class="s">'object'</span>) <span class="k">return</span> <span class="n">JSON.stringify</span>(v);
  <span class="k">if</span> (<span class="n">Array.isArray</span>(v)) <span class="k">return</span> <span class="s">'['</span> + v.<span class="n">map</span>(canonical).<span class="n">join</span>(<span class="s">','</span>) + <span class="s">']'</span>;
  <span class="k">const</span> keys = <span class="n">Object.keys</span>(v).<span class="n">sort</span>();
  <span class="k">return</span> <span class="s">'{'</span> + keys.<span class="n">map</span>(k =&gt; <span class="n">JSON.stringify</span>(k) + <span class="s">':'</span> + <span class="n">canonical</span>(v[k])).<span class="n">join</span>(<span class="s">','</span>) + <span class="s">'}'</span>;
<span class="p">}</span>

<span class="k">function</span> <span class="n">hashContract</span>(contract) <span class="p">{</span>
  <span class="k">if</span> (!contract || <span class="k">typeof</span> contract !== <span class="s">'object'</span>)
    <span class="k">throw new</span> <span class="n">Error</span>(<span class="s">'hashContract: contract must be object'</span>);
  <span class="k">const</span> body = contract.<span class="n">exports</span> || contract;
  <span class="k">const</span> normalized = <span class="n">canonical</span>(body);
  <span class="k">const</span> full = crypto.<span class="n">createHash</span>(<span class="s">'sha256'</span>).<span class="n">update</span>(normalized).<span class="n">digest</span>(<span class="s">'hex'</span>);
  <span class="k">return</span> <span class="s">'sha256:'</span> + full.<span class="n">slice</span>(<span class="v">0</span>, <span class="v">16</span>);   <span class="c">// 截 16 hex chars</span>
<span class="p">}</span>

<span class="c">/**
 * 验证某 Unit 的 contract_hash 是否与文件中标记一致。
 * 用于 self-check + L2 gate 判定。
 */</span>
<span class="k">function</span> <span class="n">verifyContractHash</span>(unit, contract) <span class="p">{</span>
  <span class="k">const</span> recomputed = <span class="n">hashContract</span>(contract);
  <span class="k">return</span> <span class="p">{</span>
    ok: recomputed === unit.contract_hash,
    expected: unit.contract_hash,
    actual: recomputed,
  <span class="p">}</span>;
<span class="p">}</span>

module.<span class="n">exports</span> = <span class="p">{</span> hashContract, verifyContractHash, canonical <span class="p">}</span>;</pre>

        <h3>7.2 <code>unit-extractor.js</code> · 从 PRD feature-tree 派生 Unit 草案</h3>
<pre class="code"><span class="c">// server/services/agent-tools/unit-extractor.js · ~80 行</span>
<span class="k">const</span> cheerio = <span class="n">require</span>(<span class="s">'cheerio'</span>);
<span class="k">const</span> fs      = <span class="n">require</span>(<span class="s">'fs'</span>);

<span class="c">/**
 * 读 prd/feature/feature-tree.html,识别每个 feature,
 * 给 Architect 返回 Unit 拆分草案(架构判断仍由 Agent 做)。
 */</span>
<span class="k">function</span> <span class="n">extractUnitDrafts</span>(prdFeatureTreePath) <span class="p">{</span>
  <span class="k">const</span> $ = cheerio.<span class="n">load</span>(fs.<span class="n">readFileSync</span>(prdFeatureTreePath, <span class="s">'utf8'</span>));
  <span class="k">const</span> drafts = <span class="p">[]</span>;

  <span class="c">// feature-tree 约定: 每个特性是一个 &lt;section data-feature-id&gt;</span>
  $(<span class="s">'section[data-feature-id]'</span>).<span class="n">each</span>((_, el) =&gt; <span class="p">{</span>
    <span class="k">const</span> id   = $(el).<span class="n">attr</span>(<span class="s">'data-feature-id'</span>);
    <span class="k">const</span> name = $(el).<span class="n">find</span>(<span class="s">'h3'</span>).<span class="n">first</span>().<span class="n">text</span>().<span class="n">trim</span>();
    <span class="k">const</span> desc = $(el).<span class="n">find</span>(<span class="s">'p'</span>).<span class="n">first</span>().<span class="n">text</span>().<span class="n">trim</span>();

    <span class="c">// 启发式判断需要哪些 Unit type</span>
    <span class="k">const</span> hint = $(el).<span class="n">attr</span>(<span class="s">'data-needs'</span>) || <span class="s">''</span>;        <span class="c">// "be,fe" 或 "be,fe,mw,db"</span>
    <span class="k">const</span> needs = hint.<span class="n">split</span>(<span class="s">','</span>).<span class="n">map</span>(s =&gt; s.<span class="n">trim</span>()).<span class="n">filter</span>(Boolean);

    <span class="k">const</span> defaultNeeds = needs.<span class="n">length</span> ? needs : <span class="p">[</span><span class="s">'be'</span>, <span class="s">'fe'</span><span class="p">]</span>;   <span class="c">// 默认全栈</span>

    <span class="k">for</span> (<span class="k">const</span> type <span class="k">of</span> defaultNeeds) <span class="p">{</span>
      drafts.<span class="n">push</span>(<span class="p">{</span>
        unit_id:    <span class="s">`</span><span class="v">${id}</span><span class="s">-</span><span class="v">${type}</span><span class="s">`</span>,
        feature_id: id,
        feature_name: name,
        type,
        description: desc,
        suggested_depends: <span class="n">suggestDeps</span>(id, type, defaultNeeds),
      <span class="p">}</span>);
    <span class="p">}</span>
  <span class="p">}</span>);

  <span class="k">return</span> drafts;
<span class="p">}</span>

<span class="k">function</span> <span class="n">suggestDeps</span>(featureId, type, allNeeds) <span class="p">{</span>
  <span class="c">// fe 默认依赖同 feature 的 be</span>
  <span class="k">if</span> (type === <span class="s">'fe'</span> &amp;&amp; allNeeds.<span class="n">includes</span>(<span class="s">'be'</span>)) <span class="k">return</span> <span class="p">[</span><span class="s">`</span><span class="v">${featureId}</span><span class="s">-be`</span><span class="p">]</span>;
  <span class="c">// be 默认无依赖 (Architect 后续可加 mw/db 依赖)</span>
  <span class="k">return</span> <span class="p">[]</span>;
<span class="p">}</span>

<span class="k">function</span> <span class="n">validateUnitId</span>(id) <span class="p">{</span>
  <span class="k">return</span> <span class="s">/^[a-z]+(-[a-z]+)*-(be|fe|mw|db)$/</span>.<span class="n">test</span>(id);
<span class="p">}</span>

module.<span class="n">exports</span> = <span class="p">{</span> extractUnitDrafts, validateUnitId <span class="p">}</span>;</pre>

        <h3>7.3 <code>sdd-section-patcher.js</code> · patch 模式精准应用</h3>
<pre class="code"><span class="c">// server/services/agent-tools/sdd-section-patcher.js · ~70 行</span>
<span class="k">const</span> cheerio = <span class="n">require</span>(<span class="s">'cheerio'</span>);
<span class="k">const</span> fs      = <span class="n">require</span>(<span class="s">'fs'</span>);
<span class="k">const</span> path    = <span class="n">require</span>(<span class="s">'path'</span>);

<span class="c">/**
 * 应用 triage.proposed_sdd_patch 到 sdd/mvcp/ 内对应文件。
 * 不重写整页,只替换 target_section 的内容。
 */</span>
<span class="k">function</span> <span class="n">applySddPatch</span>(<span class="p">{</span> sddDir, patch, by <span class="p">}</span>) <span class="p">{</span>
  <span class="c">// target_section 形如 "#unit-auth-be" 或 "#def-auth-be-contract"</span>
  <span class="c">// 在 sdd/mvcp/*.html 中查找含有该 id (或 data-unit-id 匹配) 的 section</span>

  <span class="k">const</span> candidates = [<span class="s">'model.html'</span>, <span class="s">'view.html'</span>, <span class="s">'control.html'</span>, <span class="s">'process.html'</span>];
  <span class="k">let</span> applied = <span class="p">[]</span>;

  <span class="k">for</span> (<span class="k">const</span> f <span class="k">of</span> candidates) <span class="p">{</span>
    <span class="k">const</span> p = path.<span class="n">join</span>(sddDir, <span class="s">'mvcp'</span>, f);
    <span class="k">if</span> (!fs.<span class="n">existsSync</span>(p)) <span class="k">continue</span>;
    <span class="k">const</span> raw = fs.<span class="n">readFileSync</span>(p, <span class="s">'utf8'</span>);
    <span class="k">const</span> $ = cheerio.<span class="n">load</span>(raw, <span class="p">{</span> decodeEntities: <span class="v">false</span> <span class="p">}</span>);

    <span class="c">// 尝试匹配 target_section</span>
    <span class="k">const</span> selector = patch.<span class="n">target_section</span>.<span class="n">replace</span>(<span class="s">'#unit-'</span>, <span class="s">'section[data-unit-id="'</span>).<span class="n">replace</span>(<span class="s">/$/</span>, <span class="s">'"]'</span>);
    <span class="k">const</span> target = $(selector);
    <span class="k">if</span> (target.<span class="n">length</span> === <span class="v">0</span>) <span class="k">continue</span>;

    <span class="k">if</span> (patch.<span class="n">op</span> === <span class="s">'update_contract'</span>) <span class="p">{</span>
      <span class="k">const</span> pre = target.<span class="n">find</span>(<span class="s">'pre[data-contract]'</span>).<span class="n">first</span>();
      <span class="k">if</span> (pre.<span class="n">length</span> === <span class="v">0</span>) <span class="p">{</span>
        <span class="k">throw new</span> <span class="n">Error</span>(<span class="s">`</span><span class="v">${f}</span><span class="s">: target section has no &lt;pre data-contract&gt;`</span>);
      <span class="p">}</span>
      <span class="c">// 追加 patch.text 作为新行 (而非替换,以保留历史)</span>
      pre.<span class="n">append</span>(<span class="s">'\n  // PATCH (' + by + '):\n  ' + patch.text + '\n'</span>);
      <span class="c">// 升 section data-rev</span>
      <span class="k">const</span> curRev = <span class="n">parseInt</span>(target.<span class="n">attr</span>(<span class="s">'data-rev'</span>) || <span class="s">'1'</span>, <span class="v">10</span>);
      target.<span class="n">attr</span>(<span class="s">'data-rev'</span>, <span class="n">String</span>(curRev + <span class="v">1</span>));

      fs.<span class="n">writeFileSync</span>(p, $.<span class="n">html</span>());
      applied.<span class="n">push</span>(<span class="p">{</span> file: f, section: patch.<span class="n">target_section</span>, new_rev: curRev + <span class="v">1</span> <span class="p">}</span>);
    <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> (patch.<span class="n">op</span> === <span class="s">'append_acceptance'</span>) <span class="p">{</span>
      <span class="k">const</span> ul = target.<span class="n">find</span>(<span class="s">'ul[data-acceptance]'</span>).<span class="n">first</span>();
      ul.<span class="n">append</span>(<span class="s">'&lt;li&gt;' + patch.text + '&lt;/li&gt;'</span>);
      fs.<span class="n">writeFileSync</span>(p, $.<span class="n">html</span>());
      applied.<span class="n">push</span>(<span class="p">{</span> file: f, op: <span class="s">'append_acceptance'</span> <span class="p">}</span>);
    <span class="p">}</span>
    <span class="k">break</span>;   <span class="c">// 第一个匹配的文件就处理</span>
  <span class="p">}</span>

  <span class="k">if</span> (applied.<span class="n">length</span> === <span class="v">0</span>)
    <span class="k">throw new</span> <span class="n">Error</span>(<span class="s">`No matching target_section found in sdd/mvcp/`</span>);
  <span class="k">return</span> applied;
<span class="p">}</span>

module.<span class="n">exports</span> = <span class="p">{</span> applySddPatch <span class="p">}</span>;</pre>

        <h3>7.4 <code>sdd-validator.js</code> · 三方一致性校验</h3>
<pre class="code"><span class="c">// server/services/agent-tools/sdd-validator.js · ~90 行</span>
<span class="k">const</span> cheerio = <span class="n">require</span>(<span class="s">'cheerio'</span>);
<span class="k">const</span> fs      = <span class="n">require</span>(<span class="s">'fs'</span>);
<span class="k">const</span> path    = <span class="n">require</span>(<span class="s">'path'</span>);
<span class="k">const</span> <span class="p">{</span> validateUnitId <span class="p">}</span> = <span class="n">require</span>(<span class="s">'./unit-extractor'</span>);
<span class="k">const</span> <span class="p">{</span> hashContract  <span class="p">}</span> = <span class="n">require</span>(<span class="s">'./hash-contract'</span>);

<span class="k">function</span> <span class="n">topoSort</span>(units) <span class="p">{</span>
  <span class="k">const</span> idx = <span class="k">new</span> <span class="n">Map</span>();
  units.<span class="n">forEach</span>((u,i) =&gt; idx.<span class="n">set</span>(u.id, i));
  <span class="k">const</span> color = <span class="k">new</span> <span class="n">Array</span>(units.length).<span class="n">fill</span>(<span class="v">0</span>);
  <span class="k">const</span> order = <span class="p">[]</span>;
  <span class="k">let</span> hasCycle = <span class="v">false</span>;
  <span class="k">function</span> <span class="n">visit</span>(i) <span class="p">{</span>
    <span class="k">if</span> (color[i] === <span class="v">2</span>) <span class="k">return</span>;
    <span class="k">if</span> (color[i] === <span class="v">1</span>) <span class="p">{</span> hasCycle = <span class="v">true</span>; <span class="k">return</span>; <span class="p">}</span>
    color[i] = <span class="v">1</span>;
    <span class="k">for</span> (<span class="k">const</span> dep <span class="k">of</span> units[i].depends_on) <span class="p">{</span>
      <span class="k">if</span> (idx.<span class="n">has</span>(dep)) <span class="n">visit</span>(idx.<span class="n">get</span>(dep));
    <span class="p">}</span>
    color[i] = <span class="v">2</span>;
    order.<span class="n">push</span>(units[i].id);
  <span class="p">}</span>
  <span class="k">for</span> (<span class="k">let</span> i = <span class="v">0</span>; i &lt; units.length; i++) <span class="n">visit</span>(i);
  <span class="k">return</span> <span class="p">{</span> ok: !hasCycle, order, cycle: hasCycle <span class="p">}</span>;
<span class="p">}</span>

<span class="k">function</span> <span class="n">validateSddConsistency</span>(pid) <span class="p">{</span>
  <span class="k">const</span> root = path.<span class="n">resolve</span>(projectsDir, pid);
  <span class="k">const</span> issues = <span class="p">[]</span>;

  <span class="c">// 1. units.json 读 + schema (typebox 见 M-2)</span>
  <span class="k">const</span> units = <span class="n">JSON.parse</span>(fs.<span class="n">readFileSync</span>(path.<span class="n">join</span>(root, <span class="s">'units.json'</span>), <span class="s">'utf8'</span>));
  units.<span class="n">units</span>.<span class="n">forEach</span>(u =&gt; <span class="p">{</span>
    <span class="k">if</span> (!<span class="n">validateUnitId</span>(u.id)) issues.<span class="n">push</span>(<span class="s">`unit id "</span><span class="v">${u.id}</span><span class="s">" violates naming pattern`</span>);
  <span class="p">}</span>);

  <span class="c">// 2. DAG 无环</span>
  <span class="k">const</span> topo = <span class="n">topoSort</span>(units.<span class="n">units</span>);
  <span class="k">if</span> (topo.<span class="n">cycle</span>) issues.<span class="n">push</span>(<span class="s">'units.json has cycle in depends_on'</span>);

  <span class="c">// 3. 每个 Unit 在 sdd/mvcp/ 至少出现 1 次</span>
  <span class="k">const</span> sddTexts = <span class="p">[</span><span class="s">'model'</span>, <span class="s">'view'</span>, <span class="s">'control'</span>, <span class="s">'process'</span><span class="p">]</span>
    .<span class="n">map</span>(k =&gt; <span class="p">{</span>
      <span class="k">const</span> p = path.<span class="n">join</span>(root, <span class="s">'sdd/mvcp'</span>, k+<span class="s">'.html'</span>);
      <span class="k">return</span> fs.<span class="n">existsSync</span>(p) ? fs.<span class="n">readFileSync</span>(p, <span class="s">'utf8'</span>) : <span class="s">''</span>;
    <span class="p">}</span>).<span class="n">join</span>(<span class="s">'\n'</span>);
  <span class="k">for</span> (<span class="k">const</span> u <span class="k">of</span> units.<span class="n">units</span>) <span class="p">{</span>
    <span class="k">if</span> (!sddTexts.<span class="n">includes</span>(<span class="s">`data-unit-id="</span><span class="v">${u.id}</span><span class="s">"`</span>) &amp;&amp;
        !sddTexts.<span class="n">includes</span>(<span class="s">`data-def-name="</span><span class="v">${u.id}</span><span class="s">"`</span>))
      issues.<span class="n">push</span>(<span class="s">`unit </span><span class="v">${u.id}</span><span class="s"> not referenced in sdd/mvcp/`</span>);
  <span class="p">}</span>

  <span class="c">// 4. integration/spec.json involves 都在 units</span>
  <span class="k">const</span> spec = <span class="n">JSON.parse</span>(fs.<span class="n">readFileSync</span>(path.<span class="n">join</span>(root, <span class="s">'integration/spec.json'</span>), <span class="s">'utf8'</span>));
  <span class="k">const</span> unitIds = <span class="k">new</span> <span class="n">Set</span>(units.<span class="n">units</span>.<span class="n">map</span>(u =&gt; u.id));
  <span class="k">for</span> (<span class="k">const</span> c <span class="k">of</span> spec.<span class="n">cases</span>) <span class="p">{</span>
    <span class="k">for</span> (<span class="k">const</span> u <span class="k">of</span> c.involves) <span class="p">{</span>
      <span class="k">if</span> (!unitIds.<span class="n">has</span>(u)) issues.<span class="n">push</span>(<span class="s">`integration case </span><span class="v">${c.id}</span><span class="s"> involves unknown unit </span><span class="v">${u}</span><span class="s">`</span>);
    <span class="p">}</span>
  <span class="p">}</span>

  <span class="k">return</span> <span class="p">{</span> ok: issues.length === <span class="v">0</span>, issues <span class="p">}</span>;
<span class="p">}</span>

module.<span class="n">exports</span> = <span class="p">{</span> validateSddConsistency, topoSort <span class="p">}</span>;</pre>
      </section>

      <section>
        <h2>⑧ 自检 Checklist · 完工前必跑</h2>
        <table>
          <thead><tr><th>#</th><th>检查项</th><th>命令 / 工具</th><th>通过判定</th></tr></thead>
          <tbody>
            <tr><td>1</td><td>三方一致性</td><td><code>validate_sdd_consistency(pid)</code></td><td>ok=true, issues=[]</td></tr>
            <tr><td>2</td><td>units.json schema</td><td>typebox 校验</td><td>合规</td></tr>
            <tr><td>3</td><td>DAG 无环</td><td><code>topo_sort</code></td><td>cycle=false</td></tr>
            <tr><td>4</td><td>每个 Unit 在 sdd/mvcp/ 有引用</td><td>cheerio grep</td><td>全 hit</td></tr>
            <tr><td>5</td><td>每个 Unit contract_hash 重算一致</td><td><code>verifyContractHash</code></td><td>全 ok=true</td></tr>
            <tr><td>6</td><td>Unit id 全部符合命名规则</td><td><code>validateUnitId</code></td><td>全 true</td></tr>
            <tr><td>7</td><td>integration involves ⊆ units</td><td>validate_sdd_consistency 内置</td><td>无 "unknown unit"</td></tr>
            <tr><td>8</td><td>SDD 站点搜索索引同步</td><td><code>update_search_index(pid, 'sdd')</code></td><td>pages 含新写文件</td></tr>
            <tr><td>9</td><td>每页 ≥4 类信息</td><td>cheerio 同 PRD 校验</td><td>无 "X/8 types"</td></tr>
            <tr><td>10</td><td>todolist 全 done</td><td>read agent-state/architect-todo.json</td><td>全 done</td></tr>
            <tr><td>11</td><td>timeline 含 sdd_generated/sdd_patched</td><td>tail timeline.ndjson</td><td>最后 5 条之一命中</td></tr>
            <tr><td>12</td><td>agent-state.architect.json 终态</td><td>read M-10</td><td>status=done</td></tr>
            <tr><td>13</td><td>changelog.ndjson 含 sdd_rev 新条目</td><td>tail changelog.ndjson</td><td>kind='sdd_rev'</td></tr>
            <tr><td>14</td><td><b>patch 模式专用</b>:仅 affected_units 的 hash 变化</td><td>diff_units 对比</td><td>changed ⊆ triage.affected_units</td></tr>
          </tbody>
        </table>
        <p class="sig">任一不过 → 不输出 ok=true。patch 后重跑 ≤2 次。第 3 次仍不过 → 报 validation_failed 上报 L3。</p>
      </section>

      <section>
        <h2>⑨ 失败模式与降级</h2>
        <table class="dense">
          <thead><tr><th>场景</th><th>检测</th><th>降级</th></tr></thead>
          <tbody>
            <tr><td>PRD 描述歧义(feature 无法明确拆 Unit)</td><td>Architect 自识别</td><td>SDD 加 <code>&lt;aside data-question&gt;</code>,触发 L3 追问</td></tr>
            <tr><td>Unit 拆得不一致(同一 feature 之前 2 个 Unit、现在 3 个)</td><td>L2 修复 ≥2 轮时</td><td>强制重生整个 SDD(generate 模式),不再 patch</td></tr>
            <tr><td>DAG 出环</td><td>topo_sort</td><td>报错 → Agent retry 一次(移除最新加的依赖);2 次仍环 → blocked</td></tr>
            <tr><td>contract_hash 碰撞(极低概率)</td><td>所有 hash 集合查重</td><td>退化用完整 64 位 hex</td></tr>
            <tr><td>patch target_section 找不到</td><td>sdd_section_patcher 报错</td><td>升级到 generate 模式重生</td></tr>
            <tr><td>integration/spec.json 引用未知 unit</td><td>validate 内置</td><td>修 spec 或 SDD,retry</td></tr>
            <tr><td>Unit 命名违规(输入了 AuthBE)</td><td>validateUnitId</td><td>直接拒,Agent 必须改名</td></tr>
            <tr><td>cheerio 解析 sdd/ html 失败</td><td>write_mvcp_page 工具内置</td><td>不写盘,retry 一次重生这段</td></tr>
            <tr><td>memory 注入太多挤爆 prompt</td><td>LoopController 控制 top 5</td><td>—</td></tr>
            <tr><td>generate 模式遇到现有 units.json</td><td>Agent 自识</td><td>归档现有 → 重生 → 用 diff_units 算 added/changed/removed</td></tr>
          </tbody>
        </table>
      </section>

      <section>
        <h2>⑩ 与其他 Agent 的握手摘要</h2>
        <table class="dense">
          <thead><tr><th>对方</th><th>Architect 给的</th><th>Architect 收的</th></tr></thead>
          <tbody>
            <tr><td><b>PM</b></td><td>(无;PM 不读 SDD)</td><td>prd/ 站点(generate 模式)</td></tr>
            <tr><td><b>BugTriager</b></td><td>(无)</td><td>triage.json(patch 模式)</td></tr>
            <tr><td><b>Coder</b></td><td>sdd/mvcp/*.html · 每 Unit 的 spec + contract 描述</td><td>(无;Architect 不读 code)</td></tr>
            <tr><td><b>Tester</b></td><td>sdd/mvcp/*.html 的 <code>&lt;ul class="tests"&gt;</code> 列表</td><td>(无)</td></tr>
            <tr><td><b>Integrator</b></td><td>integration/spec.json</td><td>(无)</td></tr>
            <tr><td><b>UnitRegistry</b></td><td>units.json + units_diff</td><td>(无)</td></tr>
            <tr><td><b>LoopController</b></td><td>ArchitectOutput JSON</td><td>ArchitectInput JSON · triage</td></tr>
            <tr><td><b>memory/devloop/architect/</b></td><td>新 .md 文件</td><td>启动时被 LoopController 注入</td></tr>
          </tbody>
        </table>
      </section>

      <section>
        <h2>⑪ 「测试 Architect Agent 是否真能跑」的实战命令</h2>
        <p>本规范的验证终局:</p>
<pre class="code"><span class="c"># 前置: PM Agent 已跑通,产出 projects/p-test001/prd/ 完整站点</span>

<span class="c"># 1. 注册 Agent 模板</span>
<span class="c">#    把本页 §2.2 的 System Prompt 落到:</span>
<span class="c">#    system/templates/devloop-architect.md</span>
<span class="c">#    并在 system/templates/_registry.json 加 'devloop-architect' 条目</span>

<span class="c"># 2. 准备输入 (单行紧凑 JSON)</span>
echo <span class="s">'{"pid":"p-test001","mode":"generate","prd_rev":1,"call_id":"call-arch-test","company_id":"c-test"}'</span> &gt; /tmp/arch-test.json

<span class="c"># 3. 调 Architect</span>
curl -X POST http://localhost:3010/api/devloop/_test/run-agent/architect \
  -H <span class="s">"Content-Type: application/json"</span> \
  -d @/tmp/arch-test.json

<span class="c"># 4. 期望:60-120 秒内</span>
<span class="c">#    data/companies/c-test/projects/p-test001/</span>
<span class="c">#    ├── sdd/index.html, sdd/overview.html, sdd/assets/*, sdd/mvcp/{model,view,control,process}.html</span>
<span class="c">#    ├── units.json (DAG)</span>
<span class="c">#    └── integration/spec.json</span>

<span class="c"># 5. 三方一致性校验</span>
node -e <span class="s">"console.log(require('./server/services/agent-tools/sdd-validator').validateSddConsistency('p-test001'))"</span>
<span class="c"># 期望: { ok: true, issues: [] }</span>

<span class="c"># 6. DAG 拓扑验证</span>
node -e <span class="s">"const u=require('./data/companies/c-test/projects/p-test001/units.json');console.log(require('./server/services/agent-tools/sdd-validator').topoSort(u.units))"</span>
<span class="c"># 期望: { ok: true, order: [...], cycle: false }</span>

<span class="c"># 7. 浏览器打开</span>
<span class="c">#    file:///data/companies/c-test/projects/p-test001/sdd/index.html</span>
<span class="c">#    左侧 3 级菜单, 4 个 MVCP 章节, Ctrl+K 可搜索每个 Unit 名</span>

<span class="c"># 8. (可选) patch 模式测试</span>
echo <span class="s">'{"pid":"p-test001","mode":"patch","triage":{"run_id":"fake","proposed_sdd_patch":{"target_section":"#unit-todo-be","op":"update_contract","text":"GET /api/todos 加分页 ?page=N"},"affected_units":["todo-be","todo-fe"],"category":"contract_mismatch","confidence":0.9},"call_id":"call-arch-patch","company_id":"c-test"}'</span> &gt; /tmp/arch-patch.json
curl -X POST http://localhost:3010/api/devloop/_test/run-agent/architect -d @/tmp/arch-patch.json

<span class="c"># 期望: 仅 sdd/mvcp/control.html · units.json 改</span>
<span class="c">#       units_diff.changed = ['todo-be','todo-fe']</span>
<span class="c">#       todo-be / todo-fe contract_hash 变化, 其他 Unit hash 不变</span></pre>
        <div class="callout ok">
          <b>这 8 条全过 = Architect Agent skill 验证通过</b>。配合上一页 PM 的 §⑪,二者通过即代表 P1 + P3 阶段的核心 Agent 都已就绪,可以进 Phase 4 写其他 4 个 Agent。
        </div>
      </section>

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