Add automation status surface

src/activity_core/llm_client.py

@@ -17,6 +17,8 @@ import httpx
 class DisabledLLMClient:
     """LLM client used when no llm-connect endpoint is configured."""
 
+    last_response_metadata: dict[str, Any] | None = None
+
     def complete(
         self,
         prompt: str,
@@ -32,6 +34,7 @@ class LLMConnectClient:
     def __init__(self, base_url: str, timeout_seconds: float = 300.0) -> None:
         self.base_url = base_url.rstrip("/")
         self.timeout_seconds = timeout_seconds
+        self.last_response_metadata: dict[str, Any] | None = None
 
     def complete(
         self,
@@ -54,12 +57,48 @@ class LLMConnectClient:
         )
         resp.raise_for_status()
         data = resp.json()
+        self.last_response_metadata = _extract_response_metadata(data)
         content = data.get("content")
         if not isinstance(content, str):
             raise ValueError("llm-connect response missing string content")
         return content
 
 
+_SAFE_RESPONSE_METADATA_KEYS = {
+    "finish_reason",
+    "usage",
+    "model",
+    "model_name",
+    "provider",
+    "request_id",
+    "response_id",
+    "trace_id",
+    "latency_ms",
+    "duration_ms",
+    "elapsed_ms",
+    "created",
+    "created_at",
+}
+
+
+def _extract_response_metadata(data: dict[str, Any]) -> dict[str, Any]:
+    """Keep non-secret llm-connect diagnostics alongside the returned content."""
+    return {
+        key: value for key, value in data.items()
+        if key in _SAFE_RESPONSE_METADATA_KEYS and _json_safe(value)
+    }
+
+
+def _json_safe(value: Any) -> bool:
+    try:
+        import json
+
+        json.dumps(value)
+    except (TypeError, ValueError):
+        return False
+    return True
+
+
 def get_llm_client() -> DisabledLLMClient | LLMConnectClient:
     base_url = os.environ.get("LLM_CONNECT_URL", "").strip()
     if not base_url: