During January 2026, Cheeeee developed an automatic model fallback mechanism for the openclaw/openclaw repository, focusing on improving system resilience during prompt-phase quota and rate-limit errors. Using TypeScript and leveraging backend development and API integration skills, Cheeeee implemented logic to detect when prompt submissions were blocked and wrapped eligible errors in a custom FailoverError. This approach ensured that fallback models were only engaged if configured, preventing unnecessary model switches and reducing user-facing failures during peak usage. The work demonstrated a targeted, robust solution to error handling, addressing a specific reliability gap without introducing unnecessary complexity or broad changes to the codebase.