Worked on enhancing command execution within the hashicorp/vault repository by refactoring the ExternalTokenHelper to run commands directly at the process level, bypassing the shell. This approach reduced execution overhead and improved the reliability of token handling across different environments. Introduced an Args field to support flexible argument passing, making future enhancements easier and increasing maintainability. The work focused on backend development using Go, leveraging process-level command execution and code refactoring techniques. No major bugs were addressed during this period, but the feature improved performance, clarity, and flexibility in how external tokens are managed within the Vault system.