feat(guardrails): per-team opt-out for specific global guardrails

Add disabled_global_guardrails list field to team metadata that
selectively skips named globals at request time. Coexists with the
existing disable_global_guardrails boolean kill switch — the boolean
kills all globals (including future ones), the new list selectively
skips named ones (new globals auto-apply).

The field lives in the team metadata JSON column; no schema migration.

- litellm/proxy/litellm_pre_call_utils.py: propagate the field from
  team_metadata into per-request data.metadata
- litellm/integrations/custom_guardrail.py: new
  get_disabled_global_guardrails_from_metadata helper plus a
  scoped-to-globals early return at the top of should_run_guardrail

litellm/integrations/custom_guardrail.py

@@ -266,6 +266,15 @@ class CustomGuardrail(CustomLogger):
             return metadata["disable_global_guardrails"]
         return False
 
+    def get_disabled_global_guardrails_from_metadata(self, data: dict) -> List[str]:
+        """
+        Returns the list of global guardrail names the team/key has opted out of.
+        """
+        if "disabled_global_guardrails" in data:
+            return data["disabled_global_guardrails"] or []
+        metadata = data.get("litellm_metadata") or data.get("metadata", {})
+        return metadata.get("disabled_global_guardrails") or []
+
     def _is_valid_response_type(self, result: Any) -> bool:
         """
         Check if result is a valid LLMResponseTypes instance.
@@ -406,6 +415,7 @@ class CustomGuardrail(CustomLogger):
         """
         requested_guardrails = self.get_guardrail_from_metadata(data)
         disable_global_guardrail = self.get_disable_global_guardrail(data)
+        disabled_global_guardrails = self.get_disabled_global_guardrails_from_metadata(data)
         verbose_logger.debug(
             "inside should_run_guardrail for guardrail=%s event_type= %s guardrail_supported_event_hooks= %s requested_guardrails= %s self.default_on= %s",
             self.guardrail_name,
@@ -414,6 +424,9 @@ class CustomGuardrail(CustomLogger):
             requested_guardrails,
             self.default_on,
         )
+        if self.default_on is True and self.guardrail_name in disabled_global_guardrails:
+            return False
+
         if self.default_on is True and disable_global_guardrail is not True:
             if self._event_hook_is_event_type(event_type):
                 if isinstance(self.event_hook, Mode):

litellm/proxy/litellm_pre_call_utils.py

@@ -1103,6 +1103,12 @@ async def add_litellm_data_to_request(  # noqa: PLR0915
         data[_metadata_variable_name]["disable_global_guardrails"] = team_metadata[
             "disable_global_guardrails"
         ]
+    if "disabled_global_guardrails" in team_metadata and isinstance(
+        team_metadata["disabled_global_guardrails"], list
+    ):
+        data[_metadata_variable_name]["disabled_global_guardrails"] = team_metadata[
+            "disabled_global_guardrails"
+        ]
     if "spend_logs_metadata" in team_metadata and isinstance(
         team_metadata["spend_logs_metadata"], dict
     ):