Glen focused on security and reliability improvements for the UKGovernmentBEIS/inspect_ai repository, addressing a critical issue in AWS credential management. He removed hard-coded AWS access keys from S3 client interactions, instead enforcing the use of the default AWS credential chain to align with best practices and reduce operational risk. Working primarily with Python and leveraging his expertise in AWS and cloud computing, Glen’s changes eliminated credential-related failure modes in log editing workflows, such as invalid or expired access keys. His work enhanced the resilience of the system and ensured that credential handling was robust, maintainable, and compliant with AWS standards.