core/agent: clear basedpyright warnings on Responses adapter

src/plyngent/agent/responses_bridge.py

@@ -146,10 +146,11 @@ def _reasoning_summary_text(response: Response) -> str:
         summary = raw.get("summary")
         if not isinstance(summary, list):
             continue
-        for block in summary:
-            if not isinstance(block, dict):
+        summary_items = cast("list[object]", summary)
+        for block_obj in summary_items:
+            if not isinstance(block_obj, dict):
                 continue
-            block_map = cast("dict[str, object]", block)
+            block_map = cast("dict[str, object]", block_obj)
             if block_map.get("type") in {"summary_text", "output_text"}:
                 text = block_map.get("text")
                 if isinstance(text, str) and text:
@@ -258,7 +259,7 @@ def usage_chunk_from_response(response: Response, *, model: str) -> ChatCompleti
         created=created,
         model=model,
         choices=[],
-        usage=cast("dict[str, Any]", response.usage),
+        usage=response.usage,
     )
 
 

src/plyngent/agent/responses_client.py

@@ -35,6 +35,8 @@ class ResponsesChatClient:
     uses ``POST /responses``.
     """
 
+    _client: OpenAIClient
+
     def __init__(self, client: OpenAIClient) -> None:
         self._client = client
 
@@ -80,10 +82,8 @@ class ResponsesChatClient:
             } and isinstance(event.delta, str) and event.delta:
                 yield reasoning_delta_chunk(model=model, content=event.delta)
                 continue
-            if etype == "response.completed" and event.response is not UNSET and isinstance(
-                event.response, dict
-            ):
-                # Decode full response for tools + usage
+            if etype == "response.completed" and event.response is not UNSET:
+                # Decode full response for tools + usage (field is dict | Unset).
                 import msgspec
 
                 from plyngent.lmproto.openai.model import Response as ResponseModel