Developed an isolated Python execution engine for the FoundationAgents/OpenManus repository, focusing on enhancing reliability and safety for multi-tenant and untrusted code execution. The work involved refactoring the existing tool to replace threading with multiprocessing, thereby mitigating shared-state risks and improving timeout management. This approach reduced the likelihood of race conditions and silent failures, while also streamlining error propagation and debugging. Emphasizing system programming and concurrency, the changes improved maintainability by introducing a cleaner concurrency model and clearer separation of concerns. The solution leveraged Python’s multiprocessing capabilities to deliver a more robust and observable code execution environment for users.