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frontend-web/src/components/workspace/recent-chat-list.tsx

@@ -163,7 +163,8 @@ export function RecentChatList() {
   const visibleThreads = threads.filter(
     (thread) =>
       thread.metadata?.thread_type !== "scheduler" &&
-      thread.metadata?.thread_type !== "bootstrap",
+      thread.metadata?.thread_type !== "bootstrap" &&
+      thread.metadata?.thread_type !== "roundtable",
   );
 
   if (visibleThreads.length === 0) {

frontend-web/src/pages/ChatsPage.tsx

@@ -34,6 +34,7 @@ export default function ChatsPage() {
     return threads?.filter((thread) => {
       return (
         thread.metadata?.thread_type !== "scheduler" &&
+        thread.metadata?.thread_type !== "roundtable" &&
         titleOfThread(thread).toLowerCase().includes(search.toLowerCase())
       );
     });

frontend-web/src/roundtable-planning/components/Step2Panel.tsx

@@ -476,8 +476,13 @@ function Step2Message({
 }
 
 /**
- * 扫描所有 `tool_calling:present_files` 步骤里的 `filepaths`,按出现顺序去重。
- * 同一气泡可能多次 present_files(总控分批交付),都聚合到一行卡片里。
+ * 收集气泡里所有"写了文件"的产出路径,按出现顺序去重,聚合到一行文件卡片。
+ *
+ * 三类来源都算:
+ *  - `present_files`:总控呈现文件,args.filepaths 是数组(可一次多个);
+ *  - `write_file` / `str_replace`:子智能体被后端 excluded_tools 禁用了 present_files,
+ *    只能 write_file 写文件,单文件 path 在 args.path —— 也聚合进卡片,保证"凡是写了
+ *    文件就出可点的卡片",而不是只有 present_files 才出。
  */
 function collectPresentedFiles(
   steps: Step2Dialogue["steps"],
@@ -485,14 +490,22 @@ function collectPresentedFiles(
   if (!Array.isArray(steps) || steps.length === 0) return [];
   const out: string[] = [];
   const seen = new Set<string>();
+  const add = (fp: unknown) => {
+    if (typeof fp !== "string" || !fp || seen.has(fp)) return;
+    seen.add(fp);
+    out.push(fp);
+  };
   for (const step of steps) {
-    if (step.key !== "tool_calling:present_files") continue;
-    const fps = step.args?.filepaths;
-    if (!Array.isArray(fps)) continue;
-    for (const fp of fps) {
-      if (typeof fp !== "string" || !fp || seen.has(fp)) continue;
-      seen.add(fp);
-      out.push(fp);
+    if (step.key === "tool_calling:present_files") {
+      const fps = step.args?.filepaths;
+      if (Array.isArray(fps)) fps.forEach(add);
+      continue;
+    }
+    if (
+      step.key === "tool_calling:write_file" ||
+      step.key === "tool_calling:str_replace"
+    ) {
+      add(step.args?.path);
     }
   }
   return out;

offline-backend-20260512/backend/app/gateway/routers/intent.py

@@ -65,6 +65,7 @@ from fastapi.responses import StreamingResponse
 # identical in connection handling, payload shape, and error mapping.
 from app.gateway.routers._roundtable_seed import ensure_roundtable_functional_agents
 from app.gateway.routers.multi_agent import (
+    _ROUNDTABLE_THREAD_METADATA,
     _auth_headers,
     _create_thread,
     _diagnose_exception,
@@ -286,7 +287,7 @@ async def init_intent(request: Request, payload: dict = Body(...)) -> dict[str,
     # 看不到逐 token 增量。
     try:
         async with _make_loopback_client(request) as client:
-            thread_id = await _create_thread(client, base, headers)
+            thread_id = await _create_thread(client, base, headers, metadata=_ROUNDTABLE_THREAD_METADATA)
     except HTTPException:
         # 上游已用结构化方式失败,原样传给前端不需要二次包装。
         raise

offline-backend-20260512/backend/app/gateway/routers/multi_agent.py

@@ -69,6 +69,12 @@ logger = logging.getLogger(__name__)
 router = APIRouter(prefix="/api/multi-agent", tags=["multi-agent"])
 
 
+# 圆桌（intent / recommend / 席位 / 协调）创建的 thread 都是功能型内部线程,
+# 不是用户的普通对话。打上这个 metadata,前端「最近的对话」列表(recent-chat-list.tsx)
+# 据 `metadata.thread_type` 过滤掉,与 scheduler / bootstrap 系统会话同一套机制。
+_ROUNDTABLE_THREAD_METADATA: dict[str, Any] = {"thread_type": "roundtable", "system": True}
+
+
 # ---------------------------------------------------------------------------
 # 共享:异常诊断器(intent/recommend/multi-agent 共用)
 # ---------------------------------------------------------------------------
@@ -289,9 +295,22 @@ def _auth_headers(request: Request) -> dict[str, str]:
     return {"Authorization": token, "Content-Type": "application/json"}
 
 
-async def _create_thread(client: httpx.AsyncClient, base: str, headers: dict[str, str]) -> str:
-    """``POST /api/threads`` → 新 thread_id（intent/recommend/init 席位均用）。"""
-    resp = await client.post(f"{base}/api/threads", json={}, headers=headers)
+async def _create_thread(
+    client: httpx.AsyncClient,
+    base: str,
+    headers: dict[str, str],
+    *,
+    metadata: dict[str, Any] | None = None,
+) -> str:
+    """``POST /api/threads`` → 新 thread_id（intent/recommend/init 席位均用）。
+
+    ``metadata`` 写入 thread 元数据,圆桌调用方传 ``_ROUNDTABLE_THREAD_METADATA``
+    把这些功能型线程标记成可被前端「最近的对话」过滤掉的系统会话。
+    """
+    body: dict[str, Any] = {}
+    if metadata:
+        body["metadata"] = metadata
+    resp = await client.post(f"{base}/api/threads", json=body, headers=headers)
     resp.raise_for_status()
     return resp.json()["thread_id"]
 
@@ -351,12 +370,15 @@ def _resolve_user_id(request: Request) -> str:
     return get_effective_user_id()
 
 
-async def _create_thread_direct(request: Request) -> str:
+async def _create_thread_direct(request: Request, *, metadata: dict[str, Any] | None = None) -> str:
     """同进程版的 ``POST /api/threads``。
 
     完全镜像 ``routers/threads.create_thread`` 的写盘动作(thread_meta +
     空 checkpoint),但跳过 TCP + Pydantic 反序列化。仅供 init 阶段批量建席位
     线程用,失败时抛 HTTPException 由 SSE 帧上报。
+
+    ``metadata`` 写入 thread 元数据;init 传 ``_ROUNDTABLE_THREAD_METADATA`` 把
+    席位 / 协调线程标记成系统会话,从前端「最近的对话」里隐藏。
     """
     from app.gateway.deps import get_checkpointer, get_thread_store
 
@@ -366,7 +388,7 @@ async def _create_thread_direct(request: Request) -> str:
     now = now_iso()
 
     try:
-        await thread_store.create(thread_id, assistant_id=None, metadata={})
+        await thread_store.create(thread_id, assistant_id=None, metadata=metadata or {})
     except Exception:
         logger.exception("[init-direct] thread_meta create failed for %s", thread_id)
         raise HTTPException(status_code=500, detail="Failed to create thread")
@@ -740,7 +762,7 @@ async def init_multi_agent(request: Request, payload: dict = Body(...)) -> Strea
             # 2) 每个席位 thread 并行创建(直调 thread_store + checkpointer),
             #    用 asyncio.as_completed 保持"先完先发 seat_ready"的体验。
             async def _prepare_sub_agent(sub_id: str) -> tuple[str, str, str, str]:
-                thread_id = await _create_thread_direct(request)
+                thread_id = await _create_thread_direct(request, metadata=_ROUNDTABLE_THREAD_METADATA)
                 meta = agent_meta.get(sub_id.lower(), {})
                 return (
                     sub_id.lower(),
@@ -802,7 +824,9 @@ async def init_multi_agent(request: Request, payload: dict = Body(...)) -> Strea
 
             # 3) coordinator thread + agent 并行创建。thread 与 agent 之间无依赖,
             #    asyncio.gather 比串行省一个直调往返的开销。
-            coord_thread_task = asyncio.create_task(_create_thread_direct(request))
+            coord_thread_task = asyncio.create_task(
+                _create_thread_direct(request, metadata=_ROUNDTABLE_THREAD_METADATA)
+            )
             coord_agent_task = asyncio.create_task(
                 _create_coordinator_direct(
                     request,

offline-backend-20260512/backend/app/gateway/routers/recommend.py

@@ -49,6 +49,7 @@ from fastapi.responses import StreamingResponse
 
 from app.gateway.routers._roundtable_seed import ensure_roundtable_functional_agents
 from app.gateway.routers.multi_agent import (
+    _ROUNDTABLE_THREAD_METADATA,
     _auth_headers,
     _create_thread,
     _flatten_content,
@@ -237,7 +238,7 @@ async def stream_recommend(request: Request, payload: dict = Body(...)) -> Strea
         async with _make_loopback_client(request) as client:
             try:
                 # 每次推荐独立 thread；prompt 已包含完整 intent + 候选列表，无需多轮。
-                thread_id = await _create_thread(client, base, headers)
+                thread_id = await _create_thread(client, base, headers, metadata=_ROUNDTABLE_THREAD_METADATA)
 
                 body = _run_payload(
                     agent_name=RECOMMENDER_AGENT_ID,