Worked on the openclaw/openclaw repository to enhance the reliability of concurrent tooling by addressing issues with user-visible ordering of tool results. Implemented a solution in Node.js and TypeScript that serializes the delivery of tool results, ensuring correct sequencing even when some tool deliveries fail. This approach reduces user confusion and improves determinism in concurrent workflows. Added automated tests to validate the sequencing logic and prevent future regressions, demonstrating a focus on robust backend development and test-driven practices. The work contributed to more maintainable and predictable pipelines, lowering support overhead and strengthening the reliability of critical backend processes.