Worked on the FAForever/fa repository to update and streamline the IsObserver API, focusing on simplifying its usage and improving maintainability. The approach involved removing unnecessary parameters from the function signature in User.lua and clarifying its purpose to check if the current focus army is an observer. Comprehensive documentation updates and a detailed changelog entry were provided to support contributor onboarding and future development. The work was implemented using Markdown for documentation and Lua for code changes, emphasizing clear traceability through well-documented commits. These improvements reduced the API surface area and helped minimize potential usage errors for future contributors.