Haolu enhanced the agent registry documentation for the microsoft/multi-agent-reference-architecture repository, focusing on clarifying the distinctions and use cases between centralized and distributed registries. By leveraging Markdown and applying best practices in technical documentation, Haolu formalized guidance on agent validation to improve the security and robustness of the registration process. The updates addressed onboarding and maintenance challenges by providing clearer architectural context and actionable instructions for developers working with multi-agent systems. While the work was limited to documentation and did not involve code or bug fixes, it demonstrated depth in understanding multi-agent architectures and contributed to more secure and maintainable system design.