Worked on the ickshonpe/bevy repository to clarify and validate the side effects of Bevy’s scene application system. Focused on documenting the semantics of the apply_scene function, specifically how it replaces and orphans existing entity children, reducing ambiguity for downstream developers. Updated doc comments and implemented a regression test in Rust to ensure the documented behavior matches the actual implementation. Leveraged technical writing and unit testing skills to align test coverage with documentation, enabling early detection of future regressions. This work improved clarity for Bevy Engine contributors and helped maintain consistency between code and documentation regarding scene application behavior.