Worked on the coze-dev/coze-studio repository to enhance the Custom Plugins API validation, focusing on both expanding functionality and improving security. The main feature involved adding support for a new API type within the custom plugin validation process, while also strengthening authorization checks to ensure correctness and protect against unauthorized access. This work was implemented using Go and leveraged backend development and API design skills to address validation and authorization gaps. The changes improved the reliability and security of the plugin system, directly supporting business needs for stable and secure integrations. No additional bugs were fixed during this period.