Developed comprehensive AWS STS AssumeRole documentation and cross-account access guidance for infrastructure-as-code management within the harness/developer-hub repository. The work focused on clarifying the configuration of secondary IAM roles in AWS connectors, enabling secure cross-account IaCM execution. Leveraging AWS IAM, STS AssumeRole, and Markdown, the developer introduced a new reference image and a dedicated documentation section to streamline onboarding for new integrators and enhance security practices. No bug fixes were recorded during this period, with efforts concentrated on delivering clear, actionable documentation that accelerates cross-account IaCM adoption and supports robust infrastructure management workflows for the developer-hub project.