During December 2025, Chris Park focused on expanding the coinbase/x402 repository by onboarding FluxA partner metadata, delivering a foundational feature that supports ecosystem growth. He developed metadata scaffolding and integration-friendly references using JSON, enabling seamless partner collaboration and faster onboarding for new integrations. His work emphasized API integration and data management, establishing clear pathways for partners to connect with the platform. While the scope was limited to a single feature and did not involve bug fixes, the contribution provided essential infrastructure for future partner onboarding, demonstrating depth in designing extensible metadata systems and supporting long-term scalability within the coinbase/x402 ecosystem.