Jiaren Wu focused on security remediation and maintainable CI automation in the actions/actions-runner-controller repository, addressing a code-scanning alert by refining GitHub Actions workflow permissions. Using YAML and leveraging CI/CD and DevOps expertise, Jiaren updated two workflows to ensure automation could run with the least-privilege access required, reducing security risks without disrupting reliability. The changes provided read and write permissions only where necessary, aligning with security tickets and maintaining auditability. This work improved traceability through clear commit history and documentation, demonstrating a careful approach to balancing security and operational needs in continuous integration environments over the course of the month.