diff --git a/tests/code_coverage_tests/recursive_detector.py b/tests/code_coverage_tests/recursive_detector.py
index 071191183df..b77348b5d73 100644
--- a/tests/code_coverage_tests/recursive_detector.py
+++ b/tests/code_coverage_tests/recursive_detector.py
@@ -67,6 +67,7 @@ IGNORE_FUNCTIONS = [
     "_redact_agent_params_tree",  # max depth set (default 10), same shape as _redact_sensitive_litellm_params.
     "_restore_redacted_nested_value",  # max depth set (default 10), mirrors _redact_agent_params_tree on the write side.
     "_unqualified",  # bounded by the qualifier depth of a static TypedDict annotation (Annotated, Required/NotRequired, ReadOnly around one type, no cycles possible).
+    "_render_json",  # bounded by the nesting depth of a pydantic-validated JsonValue from the operator's config (a finite JSON tree, no cycles possible).
     "completion_cost",  # max depth 1: recursion only fires for mixed-tier Responses WS logging objects, and each split part carries a single service_tier so _split_responses_ws_logging_object_by_service_tier returns None.
 ]