Worked on the langgenius/dify repository to deliver a comprehensive security policy document that standardizes vulnerability reporting and security update procedures. Focused on drafting clear documentation in Markdown, the work established structured governance for handling vulnerabilities and enabled faster, more consistent incident response. Emphasizing security best practices, the contribution introduced an auditable workflow for vulnerability disclosure and ongoing compliance. The approach relied on disciplined commit-based change management and close cross-team collaboration to ensure repository governance. No bugs were addressed during this period, as the primary objective was to enhance secure deployment processes and clarify security responsibilities for all contributors.