check_payload_completeness
ChatGPTCheck whether a payload contains all fields required by a provided schema before it is submitted to a downstream system. Use this tool when an agent or workflow needs a deterministic readiness check for a payload. It returns whether the payload is ready to submit, which required fields are missing, and which fields have invalid values. Do not use this tool to submit the payload, call external systems, repair business logic, infer missing values, or make open-ended recommendations.