Before deploying a GraphQL service, verify:

• Authentication and authorization are enforced.
• Pagination has server-side limits.
• N+1 access patterns have been reviewed.
• Database indexes exist for common access paths.
• Query abuse controls are configured.
• Errors are safely exposed and properly logged.
• Metrics and traces identify expensive operations.
• Health checks and graceful shutdown exist.
• Secrets are managed securely.
• Schema changes are checked for compatibility.
• Automated tests run in CI.
• Rollback procedures are documented.