During July 2025, Chris Kim developed a prompt-engineering enhancement for the kortix-ai/suna repository, focusing on backend development and Python. He introduced dynamic datetime variables into agent prompts, allowing templates to automatically render the current date, time, and year. This was achieved by creating a dedicated rendering module, custom_prompt.py, which ensures consistent and accurate datetime handling across all prompt files. The work improved the reliability and maintainability of automated prompts, reducing manual updates and supporting downstream automation. Although no bugs were fixed during this period, Chris concentrated on delivering a robust feature with attention to code quality and maintainability.