Worked on the NVIDIA-NeMo/Gym repository to stabilize continuous integration reliability and enhance test coverage for the CritPt benchmark. Addressed CI failures by implementing robust YAML configuration interpolation, allowing the system to handle unset API keys without interruption. Restored the full unit test suite, achieving 96.2% coverage and ensuring accurate module discovery across 120 modules. Improved documentation by adding a README for the critpt_agent module, clarifying configuration behavior and supporting future contributions. Leveraged skills in CI/CD, testing, and YAML to reduce PR validation risks and maintain high code quality, focusing on long-term maintainability and clear engineering practices throughout the process.