Worked on the pandas-dev/pandas repository to simplify custom accessor registration by removing the @doc decorator from pandas/core/accessor.py. This change streamlined the process for registering and using custom accessors across DataFrame, Series, and Index objects, reducing documentation overhead and boilerplate code for extension authors. The approach involved Python programming, code refactoring, and a deep understanding of pandas core internals, particularly decorator-based API design. By focusing on cleaner API surfaces and commit-based change tracking, the work improved the developer experience for those extending pandas, making it easier to onboard new contributors and accelerate the development of custom extensions.