fix: tool-result message for non-vision tools (KeyError on width); polza provider verified end-to-end (vision + mission on first attempt)

testbed/llm_agent.py

@@ -516,7 +516,7 @@ class LLMController:
                     )
                     self.messages.append(self._frame_message(frame_b64, frame_note))
                     self._trim_frames()
-                else:
+                elif frame_b64 is not None:
                     # Fallback channel: the digest (plus frame metadata) for
                     # text-only models.
                     content = (
@@ -528,6 +528,13 @@ class LLMController:
                     self.messages.append(
                         {"role": "tool", "tool_call_id": tc.id, "content": content}
                     )
+                else:
+                    # Any other tool: plain structured result, prefixed with
+                    # the CURRENT STATE note.
+                    content = (hint + "\n" if hint else "") + json.dumps(outcome.output)
+                    self.messages.append(
+                        {"role": "tool", "tool_call_id": tc.id, "content": content}
+                    )
                 call_result = ToolCallResult(
                     name=name, args=args, ok=True, output=outcome.output, digest=digest
                 )