Worked on stabilizing the entitlement data flow and install path reliability for the AdobeDocs/adp-devsite repository, focusing on backend robustness. Addressed a critical bug by ensuring that fetchTemplateEntitlement() executes consistently across all authentication flows, which guarantees that templateData.apis is always populated and prevents failures at the /install endpoint. Improved the integrity of install payloads by mapping only the necessary licenseConfig fields, thereby strengthening data contracts between template responses and install requests. Utilized JavaScript for full stack development, emphasizing API integration and error handling. The work reduced runtime errors related to empty API arrays and enhanced overall system stability.