Run the third-party-api-auditor subagent over the full surface of a third-party financial/data-API integration — client, server, database, and hosting. Use this skill whenever the user asks to "audit the integration", "review the vendor integration", "check the API setup", "verify integration security", "make sure the connection is correct", "audit my integration code", or before any beta build / after any integration-touching PR. Returns severity-tagged findings and a PASS/BLOCK verdict.