feat: assemblePlanPrompt 改为按单文档组装，增加依赖说明

src/cli.ts

@@ -74,8 +74,12 @@ cli.command("plan <change-name>", "规划阶段").action(
     const root = requireProjectRoot();
     await mkdir(getChangeDir(root, changeName), { recursive: true });
     const config = await loadConfig(root);
-    const prompt = await assemblePlanPrompt(config, root, changeName);
+    const plan = config.stages.plan;
+    if (!plan) throw new Error("plan 阶段未配置");
+    for (const doc of plan.documents) {
+      const prompt = await assemblePlanPrompt(config, root, changeName, doc.name);
       console.log(prompt);
+    }
   },
 );
 

src/core/assembler.ts

@@ -15,17 +15,21 @@ export async function assemblePlanPrompt(
   config: RuneConfig,
   projectRoot: string,
   changeName: string,
+  documentName: string,
 ): Promise<string> {
   const plan = config.stages.plan;
   if (!plan) throw new Error("plan 阶段未配置");
 
+  const doc = plan.documents.find((d) => d.name === documentName);
+  if (!doc) {
+    throw new Error(`文档 "${documentName}" 不在配置的 plan.documents 中`);
+  }
+
   const changeDir = getChangeDir(projectRoot, changeName);
   const parts: string[] = [];
 
-  parts.push(`# 规划阶段：${changeName}\n`);
+  parts.push(`# 规划阶段：${changeName}`);
-  parts.push("请为当前变更生成以下文档：\n");
+  parts.push("");
-
-  for (const doc of plan.documents) {
   parts.push(`## 文档：${doc.name}.md`);
   parts.push(doc.prompt);
 
@@ -40,10 +44,22 @@ export async function assemblePlanPrompt(
     parts.push(`\n### 格式模板：\n${rendered}`);
   }
 
-    parts.push("");
+  if (doc.depend && doc.depend.length > 0) {
+    parts.push("\n---\n");
+    parts.push("## 依赖说明\n");
+    parts.push("本文档依赖以下前置文档：");
+
+    for (const dep of doc.depend) {
+      const depPath = join(changeDir, `${dep}.md`);
+      const depCompleted = existsSync(depPath);
+      const status = depCompleted ? "已完成" : "未完成";
+      parts.push(`- ${dep}.md（${status}）`);
     }
 
-  parts.push(`请将文档写入目录：${changeDir}`);
+    parts.push("\n请先阅读已完成的前置文档，确保内容一致。");
+  }
+
+  parts.push(`\n请将文档写入目录：${changeDir}`);
   return parts.join("\n");
 }
 

tests/core/assembler.test.ts

@@ -37,16 +37,16 @@ describe("assembleDiscussPrompt", () => {
 });
 
 describe("assemblePlanPrompt", () => {
-  it("包含变更名称和文档指引", async () => {
+  it("包含指定文档名称和提示词", async () => {
     const prompt = await assemblePlanPrompt(
       defaultConfig,
       TMP_DIR,
       "user-auth",
+      "design",
     );
     expect(prompt).toContain("user-auth");
     expect(prompt).toContain("design");
-    expect(prompt).toContain("task");
+    expect(prompt).not.toContain("task");
-    expect(prompt).toContain("格式模板");
   });
 
   it("包含已有文档内容（重复 plan 场景）", async () => {
@@ -57,6 +57,7 @@ describe("assemblePlanPrompt", () => {
       defaultConfig,
       TMP_DIR,
       "user-auth",
+      "design",
     );
     expect(prompt).toContain("已有设计");
     expect(prompt).toContain("在此基础上修订");
@@ -67,12 +68,67 @@ describe("assemblePlanPrompt", () => {
       defaultConfig,
       TMP_DIR,
       "user-auth",
+      "design",
     );
     expect(prompt).toContain("user-auth 设计文档");
-    expect(prompt).toContain("user-auth 任务列表");
     expect(prompt).not.toContain("{{change-name}}");
   });
 
+  it("包含依赖说明（有依赖时）", async () => {
+    const config: RuneConfig = {
+      stages: {
+        plan: {
+          documents: [
+            { name: "design", prompt: "生成设计" },
+            { name: "task", prompt: "生成任务", depend: ["design"] },
+          ],
+        },
+      },
+    };
+    const prompt = await assemblePlanPrompt(
+      config,
+      TMP_DIR,
+      "user-auth",
+      "task",
+    );
+    expect(prompt).toContain("依赖说明");
+    expect(prompt).toContain("design.md");
+  });
+
+  it("无依赖时不包含依赖说明", async () => {
+    const prompt = await assemblePlanPrompt(
+      defaultConfig,
+      TMP_DIR,
+      "user-auth",
+      "design",
+    );
+    expect(prompt).not.toContain("依赖说明");
+  });
+
+  it("依赖说明标注完成状态", async () => {
+    const changeDir = join(TMP_DIR, ".rune", "changes", "user-auth");
+    await mkdir(changeDir, { recursive: true });
+    await writeFile(join(changeDir, "design.md"), "# 设计");
+
+    const config: RuneConfig = {
+      stages: {
+        plan: {
+          documents: [
+            { name: "design", prompt: "生成设计" },
+            { name: "task", prompt: "生成任务", depend: ["design"] },
+          ],
+        },
+      },
+    };
+    const prompt = await assemblePlanPrompt(
+      config,
+      TMP_DIR,
+      "user-auth",
+      "task",
+    );
+    expect(prompt).toContain("已完成");
+  });
+
   it("使用自定义 plan 配置", async () => {
     const config: RuneConfig = {
       stages: {
@@ -87,7 +143,7 @@ describe("assemblePlanPrompt", () => {
         },
       },
     };
-    const prompt = await assemblePlanPrompt(config, TMP_DIR, "my-feature");
+    const prompt = await assemblePlanPrompt(config, TMP_DIR, "my-feature", "spec");
     expect(prompt).toContain("spec");
     expect(prompt).toContain("my-feature 规格");
     expect(prompt).not.toContain("design");

tests/integration/flow.test.ts

@@ -34,7 +34,7 @@ describe("完整 SDD 流程", () => {
 
     const changeName = "user-auth";
     await mkdir(getChangeDir(TMP_DIR, changeName), { recursive: true });
-    const planPrompt = await assemblePlanPrompt(config, TMP_DIR, changeName);
+    const planPrompt = await assemblePlanPrompt(config, TMP_DIR, changeName, "design");
     expect(planPrompt).toContain("user-auth");
 
     const changeDir = getChangeDir(TMP_DIR, changeName);
@@ -118,7 +118,7 @@ describe("完整 SDD 流程", () => {
     expect(discussPrompt).toBe("自定义讨论");
 
     await mkdir(getChangeDir(TMP_DIR, "test"), { recursive: true });
-    const planPrompt = await assemblePlanPrompt(config, TMP_DIR, "test");
+    const planPrompt = await assemblePlanPrompt(config, TMP_DIR, "test", "spec");
     expect(planPrompt).toContain("spec");
     expect(planPrompt).toContain("test 规格");
     expect(planPrompt).not.toContain("design");