Worked on the vllm-project/vllm-ascend repository to enhance reliability and user troubleshooting for ACL graph capture in Ascend deployments. Focused on backend development and debugging using Python, the work introduced improved error detection for stream-resource failures and legacy Ascend HDK/CANN stack issues by leveraging error codes and message markers. Actionable remediation steps and upgrade recommendations were provided, reducing mean time to repair and lowering support demands. The update surfaced targeted guidance and prerequisites, such as requiring Ascend HDK 25.5.1 or newer, and was validated for compatibility with vLLM 0.23.0 through compile checks, ensuring robust error handling.