diff --git a/bioflow_service/app/services/bioflow/extensions.py b/bioflow_service/app/services/bioflow/extensions.py
index 9918318..4cd616e 100644
--- a/bioflow_service/app/services/bioflow/extensions.py
+++ b/bioflow_service/app/services/bioflow/extensions.py
@@ -956,7 +956,6 @@ def get_store() -> ExtensionStore:
             base_dir=str(Path(s.extensions_dir_abs)),
             max_repair_rounds=int(s.extension_max_repair_rounds),
         )
-        inject_executor(_store)
     return _store
 
 
@@ -969,26 +968,17 @@ def inject_real_executor(real: Any, store: ExtensionStore | None = None) -> None
     target = store if store is not None else _active_store
     if target is None:
         return
-    if target.executor is None:
-        target.executor = ExtensionExecutor()
+    # 无论字段现状如何(旧 inject_executor 可能塞过函数对象),
+    # 一律新建适配器并注入真实执行器——语义唯一入口。
+    target.executor = ExtensionExecutor()
     target.executor.inject_real(real)
 
 
 def inject_executor(store: ExtensionStore | None = None) -> None:
-    """Dev-B 替换点：extension_exec.py 实现后调用本函数注入真执行器。
-
-    executor 为 ExtensionExecutor 实例或可调用对象（协程：
-    execute(ExtensionRunSpec) -> ExtensionRunResult | dict）。
-    """
-    target = store or get_store()
-    try:
-        from ... import context as context_mod
-
-        executor = context_mod.context.executor
-        if executor is not None:
-            target.executor = executor
-    except Exception:  # noqa: BLE001
-        pass
+    """【已废弃】旧 Dev-A 占位函数——曾把 context.executor(生信 stage runner
+    函数)塞进扩展 store,导致注入真实执行器时 .inject_real 撞函数对象。
+    现语义由 inject_real_executor 承担;本函数保留为空壳兼容旧调用。"""
+    return
 
 
 def reset_store() -> None: