Worked on stability and reliability improvements for the core execution engine in the nndeploy/nndeploy repository, focusing on concurrency and multithreading in C++. Addressed a bug in the thread pool’s task stealing mechanism by implementing a safety check that ensures the target pool exists and is non-empty before attempting to steal tasks. This approach eliminated potential null pointer dereferences and improved task distribution under concurrent load. The solution was validated with targeted tests and additional code safeguards, reducing scheduling risk and increasing runtime throughput consistency. These enhancements contributed to more predictable deployment pipelines for both customers and internal engineering teams.