diff --git a/litellm/proxy/auth/handle_jwt.py b/litellm/proxy/auth/handle_jwt.py
index 1b360035bf7..8dac077fe3d 100644
--- a/litellm/proxy/auth/handle_jwt.py
+++ b/litellm/proxy/auth/handle_jwt.py
@@ -233,7 +233,7 @@ class JWTHandler:
     # Supported algos: https://pyjwt.readthedocs.io/en/stable/algorithms.html
     # "Warning: Make sure not to mix symmetric and asymmetric algorithms that interpret
     #   the key in different ways (e.g. HS* and RS*)."
-    SUPPORTED_JWT_ALGORITHMS = [  # mutable-ok: list kept for backward compatibility
+    SUPPORTED_JWT_ALGORITHMS = [
         *APPROVED_JWT_ALGORITHMS,
         *LEGACY_JWT_ALGORITHMS,
     ]
@@ -975,9 +975,9 @@ class JWTHandler:
 
         allowed: Final = self.allowed_algorithms()
         usable_keys: Final[JWKKeyValue] = (
-            list(jwks_keys_for(keys, allowed))  # mutable-ok: parse_keys consumes a JWKKeyValue list
+            list(jwks_keys_for(keys, allowed))
             if isinstance(keys, list)
-            else next(iter(jwks_keys_for((keys,), allowed)), {})  # mutable-ok: single-key dict is a JWKKeyValue
+            else next(iter(jwks_keys_for((keys,), allowed)), {})
         )
         public_key: Final = self.parse_keys(keys=usable_keys, kid=kid)
         if public_key is not None:
diff --git a/litellm/proxy/guardrails/guardrail_hooks/mcp_jwt_signer/mcp_jwt_signer.py b/litellm/proxy/guardrails/guardrail_hooks/mcp_jwt_signer/mcp_jwt_signer.py
index 9256d0fe5f3..75ce60ebacf 100644
--- a/litellm/proxy/guardrails/guardrail_hooks/mcp_jwt_signer/mcp_jwt_signer.py
+++ b/litellm/proxy/guardrails/guardrail_hooks/mcp_jwt_signer/mcp_jwt_signer.py
@@ -463,9 +463,7 @@ class MCPJWTSigner(CustomGuardrail):
         from jwt import PyJWKSet
 
         try:
-            jwks_set: Final = PyJWKSet.from_dict(
-                {"keys": list(approved_keys)}  # mutable-ok: PyJWKSet.from_dict takes a dict
-            )
+            jwks_set: Final = PyJWKSet.from_dict({"keys": list(approved_keys)})
         except Exception as exc:
             raise jwt.exceptions.PyJWKSetError(f"Failed to parse JWKS from {jwks_uri!r}: {exc}") from exc