Worked on enhancing the reliability of the anthropics/claude-code-action repository by addressing a critical issue in the Claude Agent SDK’s asynchronous query iterator. Using TypeScript and leveraging skills in SDK integration and backend development, implemented a fix to ensure the async iterator closes immediately after emitting a terminal result. This change prevents workflow hangs and ensures that resources are released promptly, which in turn guarantees the generation of post-run artifacts such as cost-tracker and claude-execution-output.json. The update reduced timeout-driven cancellations in PR-triggered runs, improving the overall stability and efficiency of end-to-end workflows in production environments.