feat: archive 阶段校验 task 完成状态，未完成时注入警告提示词

src/cli.ts

@@ -201,7 +201,7 @@ cli.command("archive <change-name>", "归档阶段").action(
       });
     }
     const config = await loadConfig(root);
-    const prompt = assembleArchivePrompt(config, changeName);
+    const prompt = await assembleArchivePrompt(config, root, changeName);
     const today = new Date().toISOString().slice(0, 10);
     const src = changeDir;
     const dest = join(getArchiveDir(root), `${today}-${changeName}`);

src/core/assembler.ts

@@ -111,15 +111,39 @@ export async function assembleBuildPrompt(
   return parts.join("\n");
 }
 
-export function assembleArchivePrompt(
+export async function assembleArchivePrompt(
   config: RuneConfig,
+  projectRoot: string,
   changeName: string,
-): string {
+): Promise<string> {
   const archive = config.stages.archive;
   if (!archive) throw new Error("archive 阶段未配置");
 
+  const changeDir = getChangeDir(projectRoot, changeName);
+  const taskPath = join(changeDir, "task.md");
+
   const parts: string[] = [];
   parts.push(`# 归档阶段：${changeName}\n`);
+
+  try {
+    const taskContent = await readFile(taskPath, "utf-8");
+    const tasks = parseTasks(taskContent);
+    const incompleteTasks = tasks.filter((t) => !t.checked);
+    if (incompleteTasks.length > 0) {
+      parts.push("## ⚠️ 警告：存在未完成的任务\n");
+      parts.push(`以下 ${incompleteTasks.length} 个任务尚未完成：`);
+      for (const t of incompleteTasks) {
+        parts.push(`- [ ] ${t.text}`);
+      }
+      parts.push("");
+      parts.push("请询问用户是否确认在任务未全部完成的情况下归档。");
+      parts.push("如用户确认，则继续归档；否则中止并返回构建阶段。");
+      parts.push("");
+    }
+  } catch {
+    // task.md 不存在时不追加警告
+  }
+
   parts.push(archive.prompt);
   return parts.join("\n");
 }

tests/core/assembler.test.ts

@@ -197,8 +197,10 @@ describe("assembleBuildPrompt", () => {
 });
 
 describe("assembleArchivePrompt", () => {
-  it("返回归档提示词", () => {
-    const prompt = assembleArchivePrompt(defaultConfig, "user-auth");
+  it("返回归档提示词", async () => {
+    const changeDir = join(TMP_DIR, ".rune", "changes", "user-auth");
+    await mkdir(changeDir, { recursive: true });
+    const prompt = await assembleArchivePrompt(defaultConfig, TMP_DIR, "user-auth");
     expect(prompt).toContain("user-auth");
     expect(prompt).toContain("归档");
   });

tests/integration/flow.test.ts

@@ -63,7 +63,7 @@ describe("完整 SDD 流程", () => {
     const buildPrompt2 = await assembleBuildPrompt(config, TMP_DIR, changeName);
     expect(buildPrompt2).toContain("已完成");
 
-    const archivePrompt = assembleArchivePrompt(config, changeName);
+    const archivePrompt = await assembleArchivePrompt(config, TMP_DIR, changeName);
     expect(archivePrompt).toContain("归档");
     const today = new Date().toISOString().slice(0, 10);
     const src = getChangeDir(TMP_DIR, changeName);
@@ -174,3 +174,46 @@ describe("变更名校验", () => {
     expect(validRegex.test("")).toBe(false);
   });
 });
+
+describe("archive 校验", () => {
+  it("task 未全部完成时注入警告提示词", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    const config = await loadConfig(TMP_DIR);
+
+    const changeDir = getChangeDir(TMP_DIR, "incomplete-task");
+    await mkdir(changeDir, { recursive: true });
+    await writeFile(join(changeDir, "design.md"), "# 设计");
+    await writeFile(join(changeDir, "task.md"), "- [x] 已完成任务\n- [ ] 未完成任务");
+
+    const prompt = await assembleArchivePrompt(config, TMP_DIR, "incomplete-task");
+    expect(prompt).toContain("警告");
+    expect(prompt).toContain("未完成任务");
+    expect(prompt).toContain("是否确认");
+  });
+
+  it("task 全部完成时不注入警告", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    const config = await loadConfig(TMP_DIR);
+
+    const changeDir = getChangeDir(TMP_DIR, "complete-task");
+    await mkdir(changeDir, { recursive: true });
+    await writeFile(join(changeDir, "design.md"), "# 设计");
+    await writeFile(join(changeDir, "task.md"), "- [x] 已完成任务");
+
+    const prompt = await assembleArchivePrompt(config, TMP_DIR, "complete-task");
+    expect(prompt).not.toContain("警告");
+    expect(prompt).toContain("归档阶段");
+  });
+
+  it("task.md 不存在时不追加警告", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    const config = await loadConfig(TMP_DIR);
+
+    const changeDir = getChangeDir(TMP_DIR, "no-task");
+    await mkdir(changeDir, { recursive: true });
+    await writeFile(join(changeDir, "design.md"), "# 设计");
+
+    const prompt = await assembleArchivePrompt(config, TMP_DIR, "no-task");
+    expect(prompt).not.toContain("警告");
+  });
+});