diff --git a/apps/api/tests/test_toolbox_endpoints.py b/apps/api/tests/test_toolbox_endpoints.py
index 6ee1590..06d839d 100644
--- a/apps/api/tests/test_toolbox_endpoints.py
+++ b/apps/api/tests/test_toolbox_endpoints.py
@@ -492,6 +492,31 @@ async def test_generate_teardown_returns_structured() -> None:
     assert body["output_kind"] == "BookTeardownResult"
     assert body["preview"]["themes"] == ["逆袭"]
     assert body["preview"]["structure"] == "黄金三章立钩"
+    # 书名（body.kind）前置入原文 → 进了喂网关的 context（拆书 prompt 期待书名）。
+    assert gateway.last_input is not None
+    assert "书名：某爆款" in gateway.last_input
+    assert "样本章节正文" in gateway.last_input
+
+
+@pytest.mark.asyncio
+async def test_generate_text_input_empty_text_422() -> None:
+    # text_input 工具（扩写/降AI/拆书）原文为空/空白 → 422，不触达网关（不让 LLM 空跑）。
+    repo = FakeProjectRepo()
+    pid = await _seed_project(repo)
+    gateway = _CaptureGateway(PolishResult(text="不应被调用。"))
+    app, session, *_ = _make_app(project_repo=repo, gateway=gateway)
+
+    async with _client(app) as client:
+        resp = await client.post(
+            f"/projects/{pid}/skills/expand/generate",
+            json={"text": "   ", "brief": "加强描写"},
+        )
+
+    assert resp.status_code == 422
+    assert resp.json()["error"]["code"] == ErrorCode.VALIDATION
+    # 校验在生成前拦下：网关未被调用、未 commit。
+    assert gateway.last_input is None
+    assert session.commits == 0
 
 
 # ---- POST .../ingest（world_entities gate）----
diff --git a/apps/api/ww_api/routers/toolbox.py b/apps/api/ww_api/routers/toolbox.py
index 8a08fde..a4d3ef4 100644
--- a/apps/api/ww_api/routers/toolbox.py
+++ b/apps/api/ww_api/routers/toolbox.py
@@ -192,6 +192,7 @@ async def generate_with_tool(
     world_context = ""
     beats: list[str] = []
     prior_text = ""
+    text = body.text or ""
     if tool.context_strategy == "with_world":
         world_context = await _world_context(memory, project_id)
     elif tool.context_strategy == "with_outline_chapter":
@@ -202,6 +203,18 @@ async def generate_with_tool(
         chapter_no = body.chapter_no or 1
         prior_text = await _prior_chapter_text(chapter_repo, project_id, chapter_no)
         beats = await _chapter_beats(outline_repo, project_id, chapter_no)
+    elif tool.context_strategy == "text_input":
+        # text_input 工具（扩写/降AI/拆书）必须有原文样本——空原文会让 LLM 空跑（守输入校验纪律）。
+        if not text.strip():
+            raise AppError(
+                ErrorCode.VALIDATION,
+                f"工具 {tool_key} 需要原文输入（text 不可为空）",
+                {"tool_key": tool_key},
+            )
+        # 拆书的书名（body.kind）前置入原文，供拆解对照（teardown system prompt 期待书名）。
+        kind = (body.kind or "").strip()
+        if kind:
+            text = f"书名：{kind}\n\n{text}"
 
     context = build_toolbox_context(
         tool.context_strategy,
@@ -211,7 +224,7 @@ async def generate_with_tool(
         chapter_no=body.chapter_no,
         beats=beats,
         prior_text=prior_text,
-        text=body.text or "",
+        text=text,
     )
 
     gateway = await build_gateway(spec.tier)
diff --git a/apps/web/components/chain/ChainPage.tsx b/apps/web/components/chain/ChainPage.tsx
index 9b00f63..0ba9178 100644
--- a/apps/web/components/chain/ChainPage.tsx
+++ b/apps/web/components/chain/ChainPage.tsx
@@ -77,7 +77,9 @@ export function ChainPage({ project }: ChainPageProps) {
 
   const showProgress = jobId !== null && result !== null;
   // 链运行中/等待裁决时禁止重复发起。
-  const busy = starting || (jobId !== null && phase === "running");
+  const busy =
+    starting ||
+    (jobId !== null && (phase === "running" || phase === "awaiting"));
 
   return (
     <AppShell
diff --git a/tests/test_t6_toolbox_e2e.py b/tests/test_t6_toolbox_e2e.py
index c0acd05..84d669f 100644
--- a/tests/test_t6_toolbox_e2e.py
+++ b/tests/test_t6_toolbox_e2e.py
@@ -11,7 +11,7 @@ ingest 预检调 `build_gateway("analyst")`——故 override **这一个 builde
 `Gateway`（假适配器据 output_schema 分支：生成产物 vs ContinuityReview）即可覆盖两路。
 
 用例：
-1. `GET /skills/toolbox` 返回全 11 key（legacy 3 带 legacy_route+is_legacy=true；新 8）；
+1. `GET /skills/toolbox` 返回全 15 key（legacy 3 带 legacy_route+is_legacy=true；新 12）；
    brainstorm/glossary/golden-finger 的 ingestable 标志符合预期。
 2. brainstorm `generate` → 200 ToolGeneratePreviewResponse（output_kind + preview.ideas）；
    断言 **ledger 真落行** 且 **业务表零新增**（world_entities 计数不变）——不变量 #3。
@@ -241,10 +241,10 @@ def _assert_no_secret_leak(payload: object) -> None:
         assert needle not in blob, f"sensitive marker leaked into response: {needle!r}"
 
 
-async def test_t6_list_toolbox_returns_all_eleven_tools(
+async def test_t6_list_toolbox_returns_all_fifteen_tools(
     e2e_sm: async_sessionmaker[AsyncSession],
 ) -> None:
-    """用例 1：GET /skills/toolbox 返回全 11 key；legacy 3 带 legacy_route，新 8 走通用执行器。"""
+    """用例 1：GET /skills/toolbox 返回全 15 key；legacy 3 带 legacy_route，新 12 走通用执行器。"""
     from ww_api.main import create_app
 
     app = create_app()
@@ -256,7 +256,7 @@ async def test_t6_list_toolbox_returns_all_eleven_tools(
             body = resp.json()
 
     tools = {t["key"]: t for t in body["tools"]}
-    # 全 11 key（legacy 3 + 新 8）。
+    # 全 15 key（legacy 3 + 新 8 + 竞品快赢 4：续写/扩写/降AI率/拆书）。
     assert set(tools) == {
         "worldbuilding",
         "character",
@@ -269,6 +269,10 @@ async def test_t6_list_toolbox_returns_all_eleven_tools(
         "glossary",
         "opening",
         "fine-outline",
+        "continue",
+        "expand",
+        "de-ai",
+        "teardown",
     }
     # legacy（spec=None）：is_legacy=true + 带 legacy_route，不可经通用执行入库。
     legacy_keys = {"worldbuilding", "character", "outline"}