Check evidence_check failed with error: 
{
  "sdk": "smolagents",
  "version": "1.26.0",
  "native_check_function": "CodeAgent._validate_final_answer",
  "missing_evidence_rejected": true,
  "author_valid_answer_accepted": true,
  "error": "AgentError: Check evidence_check failed with error: ",
  "agent_loop_executed": false,
  "scope": "Direct invocation of the actual SDK validator against AUTHOR outputs; no model or agent step loop.",
  "paid_or_network_model_calls": 0
}
