fix(harness): wrap async-only config tools for sync client execution (#2878)

* fix(harness): wrap async-only config tools for sync clients

* refactor(tools): share async tool sync wrapper

backend/packages/harness/deerflow/tools/tools.py

@@ -8,6 +8,7 @@ from deerflow.reflection import resolve_variable
 from deerflow.sandbox.security import is_host_bash_allowed
 from deerflow.tools.builtins import ask_clarification_tool, present_file_tool, task_tool, view_image_tool
 from deerflow.tools.builtins.tool_search import reset_deferred_registry
+from deerflow.tools.sync import make_sync_tool_wrapper
 
 logger = logging.getLogger(__name__)
 
@@ -33,6 +34,13 @@ def _is_host_bash_tool(tool: object) -> bool:
     return False
 
 
+def _ensure_sync_invocable_tool(tool: BaseTool) -> BaseTool:
+    """Attach a sync wrapper to async-only tools used by sync agent callers."""
+    if getattr(tool, "func", None) is None and getattr(tool, "coroutine", None) is not None:
+        tool.func = make_sync_tool_wrapper(tool.coroutine, tool.name)
+    return tool
+
+
 def get_available_tools(
     groups: list[str] | None = None,
     include_mcp: bool = True,
@@ -77,7 +85,7 @@ def get_available_tools(
                 cfg.use,
             )
 
-    loaded_tools = [t for _, t in loaded_tools_raw]
+    loaded_tools = [_ensure_sync_invocable_tool(t) for _, t in loaded_tools_raw]
 
     # Conditionally add tools based on config
     builtin_tools = BUILTIN_TOOLS.copy()