diff --git a/pipeline_bidding/bid_analysis_capability.py b/pipeline_bidding/bid_analysis_capability.py
index 359da79..58a6b1d 100644
--- a/pipeline_bidding/bid_analysis_capability.py
+++ b/pipeline_bidding/bid_analysis_capability.py
@@ -151,28 +151,15 @@ def _extract_file_text(path):
 
 
 async def _project_dir_of(sor, project_id):
-    """项目根目录（供相对路径解析）。解析口径与引擎上传落盘一致：
-    sd_projects.workspace_dir 优先；为空时按 {base}/{org}/{pipeline}/{项目名} 兜底。
+    """项目根目录（供相对路径解析）。统一走引擎 get_project_dir_by_id：
+    读库（创建时已写死），不再自行推导——口径漂移是上传错位的根因（2026-09-01 根治）。
     """
     if not project_id:
         return ""
     try:
-        recs = await sor.sqlExe(
-            "SELECT name, org_id, pipeline_id, workspace_dir FROM sd_projects "
-            "WHERE id=${p}$ LIMIT 1", {"p": project_id})
-        if not recs:
-            return ""
-        r = recs[0]
-        ws = (getattr(r, 'workspace_dir', '') or '').strip()
-        if ws.startswith('/'):
-            return ws
-        from pipeline_service.workspace import get_workspace_base, build_workspace_path
-        base = await get_workspace_base(sor)
-        name = (getattr(r, 'name', '') or '').strip()
-        if not base or not name:
-            return ""
-        return build_workspace_path(base, getattr(r, 'org_id', '0') or '0',
-                                    getattr(r, 'pipeline_id', '') or 'general', name)
+        from pipeline_service.workspace import get_project_dir_by_id
+        pdir, _ = await get_project_dir_by_id(sor, project_id)
+        return pdir or ""
     except Exception as e:
         logger.warning("project dir resolve failed pid=%s: %s", project_id, str(e)[:120])
         return ""
diff --git a/pipeline_bidding/bid_compose_capability.py b/pipeline_bidding/bid_compose_capability.py
index 27b5667..34b6e2a 100644
--- a/pipeline_bidding/bid_compose_capability.py
+++ b/pipeline_bidding/bid_compose_capability.py
@@ -18,23 +18,18 @@ logger = logging.getLogger("pipeline.bidding.compose")
 
 
 async def _workspace_dir(sor, project_id):
-    """项目工作目录：复用引擎 build_workspace_path（{base}/{org}/{pipeline_id}/{项目名}）。
+    """项目工作目录：统一走引擎 get_project_dir_by_id（读库，创建时已写死）。
 
     不走 get_workspace_dir（那个依赖会话当前项目），角色 agent 场景下按项目自身字段解析。
+    旧实现自行拼 {base}/{org}/{pipeline_id}/{项目名}（旧平铺口径）导致与项目目录错位，
+    2026-09-01 收敛到引擎统一函数根治。
     """
     try:
-        from pipeline_service.workspace import get_workspace_base, build_workspace_path
-        base = await get_workspace_base(sor)
-        recs = await sor.sqlExe(
-            "SELECT name, org_id, pipeline_id FROM sd_projects WHERE id=${p}$", {"p": project_id})
-        await sor.sqlExe("COMMIT", {})
-        if base and recs:
-            r = recs[0]
-            d = build_workspace_path(base, getattr(r, "org_id", "0") or "0",
-                                     getattr(r, "pipeline_id", "") or "bidding_general",
-                                     getattr(r, "name", "") or project_id, project_id)
-            os.makedirs(d, exist_ok=True)
-            return d
+        from pipeline_service.workspace import get_project_dir_by_id
+        pdir, _ = await get_project_dir_by_id(sor, project_id)
+        if pdir:
+            os.makedirs(pdir, exist_ok=True)
+            return pdir
     except Exception as e:
         logger.warning("workspace resolve failed: %s", str(e)[:120])
     d = os.path.join("/tmp", "pipeline_bidding", project_id)
diff --git a/pipeline_bidding/bid_tender_capability.py b/pipeline_bidding/bid_tender_capability.py
index e211e30..57a12ec 100644
--- a/pipeline_bidding/bid_tender_capability.py
+++ b/pipeline_bidding/bid_tender_capability.py
@@ -38,6 +38,10 @@ async def create_bid_project(name, description="", org_id="", created_by="",
     async with db.sqlorContext(dbname) as sor:
         pid = new_id()
         pname = str(name).strip()[:190]
+        # 创建时定死项目目录并写库（统一机制：解析只读库不推导，
+        # 保证上传落盘=agent工作目录=工作控件显示目录）
+        from pipeline_service.workspace import alloc_project_dir
+        ws_path, dname = await alloc_project_dir(sor, org_id or "0", PIPELINE_ID, pname, pid)
         await sor.C("sd_projects", {
             "id": pid,
             "name": pname,
@@ -47,6 +51,8 @@ async def create_bid_project(name, description="", org_id="", created_by="",
             "status": "in_progress",
             "org_id": org_id or "0",
             "created_by": created_by or (who or "agent.pm"),
+            "workspace_dir": ws_path,
+            "directory_name": dname,
         })
         await sor.sqlExe("COMMIT", {})
         await record(sor, pid, "sd_projects", pid, "create_bid_project",
@@ -115,6 +121,10 @@ async def import_tender_file(project_id, content_text="", file_path="", file_nam
                 pname = (str(file_name or "").strip() or (fp.split("/")[-1] if fp else "")
                          or txt.split("\n")[0].strip())[:190] or "投标项目"
             pid = new_id()
+            # 创建时定死项目目录并写库（统一机制，同 create_bid_project）
+            from pipeline_service.workspace import alloc_project_dir
+            ws_path, dname = await alloc_project_dir(
+                sor, org_id or "0", PIPELINE_ID, pname, pid)
             await sor.C("sd_projects", {
                 "id": pid,
                 "name": pname,
@@ -124,6 +134,8 @@ async def import_tender_file(project_id, content_text="", file_path="", file_nam
                 "status": "in_progress",
                 "org_id": org_id or "0",
                 "created_by": created_by or (who or "agent.main_agent"),
+                "workspace_dir": ws_path,
+                "directory_name": dname,
             })
             await sor.sqlExe("COMMIT", {})
             await record(sor, pid, "sd_projects", pid, "auto_create_bid_project",