chore: improve ChatDev maintenance path

frontend/src/count_lines.py

@@ -1,7 +1,8 @@
 import os
+from typing import Collection, Optional
 
 
-def count_lines(root: str, extensions=None) -> int:
+def count_lines(root: str, extensions: Optional[Collection[str]] = None) -> int:
     """
     Count total number of lines in files under `root` whose extension is in `extensions`.
 
@@ -36,7 +37,7 @@ def count_lines(root: str, extensions=None) -> int:
     return total_lines
 
 
-def main():
+def main() -> None:
     root = "."
     total = count_lines(root)
     print(f"Total lines of code under '{os.path.abspath(root)}': {total}")

tests/test_mem0_memory.py

@@ -314,6 +314,20 @@ def test_update_no_input_is_noop(self):
 
         client.add.assert_not_called()
 
+    def test_update_header_only_input_is_noop(self):
+        """Input containing only a pipeline header is cleaned to empty and skipped."""
+        memory, client = _make_mem0_memory(agent_id="a1")
+
+        payload = MemoryWritePayload(
+            agent_role="writer",
+            inputs_text="=== INPUT FROM TASK (user) ===",
+            input_snapshot=None,
+            output_snapshot=None,
+        )
+        memory.update(payload)
+
+        client.add.assert_not_called()
+
     def test_update_api_error_does_not_raise(self):
         """API errors are logged but do not propagate."""
         memory, client = _make_mem0_memory(agent_id="a1")