fix: type error in agent step (#6287)

2025-11-19 21:18:19 -08:00
parent e4c58da682
commit 2ebf863998
1 changed files with 5 additions and 1 deletions
--- a/letta/llm_api/anthropic_client.py
+++ b/letta/llm_api/anthropic_client.py
@@ -937,10 +937,14 @@ def is_heartbeat(message: dict, is_ping: bool = False) -> bool:
    except:
        return False

+    # Check if message_json is a dict (not int, str, list, etc.)
+    if not isinstance(message_json, dict):
+        return False
+
    if "reason" not in message_json:
        return False

-    if message_json["type"] != "heartbeat":
+    if message_json.get("type") != "heartbeat":
        return False

    if not is_ping: