During August 2025, Horner focused on improving the reliability of the actions/runner repository by addressing a bug in the safe_sleep.sh script. He identified and resolved an issue where the script failed to handle scheduler pauses longer than one second, which previously led to inaccurate sleep durations and unpredictable task scheduling. By adjusting the loop condition within the Bash script, Horner ensured that sleep timing remained accurate even during extended pauses, thereby reducing flaky CI executions. His work demonstrated proficiency in shell scripting and debugging, contributing to more stable continuous integration workflows and enhancing the overall reliability of scheduled tasks.