Guilherme Ruggiero focused on enhancing documentation quality and user experience across open-source AWS projects. In the aws-samples/amazon-nova-samples repository, he fixed a broken User Guide link for Amazon Nova 2 Sonic, ensuring users could reliably access the latest documentation and improving link integrity practices. He then contributed to the livekit/agents repository by updating the AWS Plugin README, clarifying features, model names, and capabilities to better align with current plugin behavior. Using Markdown and leveraging AWS integration skills, Guilherme’s work improved onboarding, reduced ambiguity for developers, and strengthened documentation maintainability, demonstrating a detail-oriented approach to technical writing and documentation QA.