fix cache key raw payload logging

litellm/caching/caching.py

@@ -309,7 +309,9 @@ class Cache:
                     param_value = kwargs[param]
                     cache_key += f"{str(param)}: {str(param_value)}"
 
-        verbose_logger.debug("\nCreated cache key: %s", cache_key)
+        verbose_logger.debug(
+            "\nCreated cache key payload length before hashing: %s", len(cache_key)
+        )
         hashed_cache_key = Cache._get_hashed_cache_key(cache_key)
         hashed_cache_key = self._add_namespace_to_cache_key(hashed_cache_key, **kwargs)
         # Remove preset_cache_key from kwargs to avoid "got multiple values" TypeError

tests/test_litellm/caching/test_cache_key_logging.py

@@ -0,0 +1,53 @@
+import logging
+
+from litellm.caching.caching import Cache
+
+
+def test_cache_key_logging_does_not_emit_raw_request_payload(caplog):
+    cache = Cache()
+    payload_marker = "RAW_PAYLOAD_MARKER_29414"
+    tool_marker = "RAW_TOOL_MARKER_29414"
+    schema_marker = "RAW_SCHEMA_MARKER_29414"
+
+    with caplog.at_level(logging.DEBUG, logger="LiteLLM"):
+        cache_key = cache.get_cache_key(
+            model="gpt-4.1",
+            messages=[
+                {
+                    "role": "user",
+                    "content": f"Please summarize {payload_marker}.",
+                }
+            ],
+            tools=[
+                {
+                    "type": "function",
+                    "function": {
+                        "name": "lookup_customer",
+                        "description": tool_marker,
+                        "parameters": {
+                            "type": "object",
+                            "properties": {"customer_id": {"type": "string"}},
+                        },
+                    },
+                }
+            ],
+            response_format={
+                "type": "json_schema",
+                "json_schema": {
+                    "name": "summary",
+                    "schema": {
+                        "type": "object",
+                        "description": schema_marker,
+                    },
+                },
+            },
+        )
+
+    log_output = "\n".join(
+        record.getMessage() for record in caplog.records if record.name == "LiteLLM"
+    )
+
+    assert payload_marker not in log_output
+    assert tool_marker not in log_output
+    assert schema_marker not in log_output
+    assert cache_key in log_output