rate_limited or concurrency_limited, respect Retry-After, back off, and stop at your deadline.
MCP success metadata includes gmapscrawl.com/request_id, gmapscrawl.com/schema_version, gmapscrawl.com/usage_units, and gmapscrawl.com/usage_state. MCP tool errors include error.retry_after and error.usage_state in their JSON text.
Quota and plan failures need an account or request change; repeated retries do not fix them. Check availability before planning live usage.