During July 2025, this developer delivered an agent lifecycle management feature for the buildkite/agent repository, focusing on backend development and configuration management using Go. They implemented a disconnect-after-uptime mechanism that enforces a maximum agent lifetime, ensuring agents shut down gracefully after a configurable period. The solution introduced both a CLI flag and an environment variable, allowing flexible operational control and smooth rollout. By preventing agents from running indefinitely, the work improved resource governance and made CI capacity more predictable. The implementation demonstrated skills in agent management, flag-based configuration, and orchestrating graceful shutdowns without addressing major bug fixes during this period.