Merge pull request #21535 from BerriAI/fix/mypy-mcp-user-permissions-type-errors

fix(mypy): resolve type errors from MCP user permissions commit

litellm/proxy/guardrails/guardrail_hooks/mcp_end_user_permission/__init__.py

@@ -1,4 +1,4 @@
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any, Dict, cast
 
 from litellm.types.guardrails import SupportedGuardrailIntegrations
 
@@ -14,7 +14,7 @@ def initialize_guardrail(litellm_params: "LitellmParams", guardrail: "Guardrail"
     # Default to always-on. Only disable if the user explicitly sets default_on: false.
     # We check the raw guardrail dict because LitellmParams normalizes None → False,
     # making it impossible to distinguish "not set" from "explicitly false" via litellm_params.
-    _raw_default_on = guardrail.get("litellm_params", {}).get("default_on")
+    _raw_default_on = cast(Dict[str, Any], guardrail).get("litellm_params", {}).get("default_on")
     _default_on = False if _raw_default_on is False else True
 
     _callback = MCPEndUserPermissionGuardrail(

litellm/responses/litellm_completion_transformation/transformation.py

@@ -1349,7 +1349,7 @@ class LiteLLMCompletionResponsesConfig:
                 result.append(tool)  # type: ignore
                 continue
             if tool.get("type") == "function":
-                fn = tool.get("function") or {}
+                fn: Dict[str, Any] = cast(Dict[str, Any], tool.get("function") or {})
                 parameters = dict(fn.get("parameters", {}) or {})
                 if not parameters or "type" not in parameters:
                     parameters["type"] = "object"