Worked on the pymc-devs/pymc repository to enhance the developer experience around dimension handling errors in PyMC. Focused on improving error handling by implementing clearer error messages that directly reference the pymc.dims.as_xtensor utility, aiming to reduce confusion and accelerate troubleshooting for dimension-related issues. The approach centered on targeted updates to Python code and comprehensive software documentation, ensuring that error messages guide users more effectively. No major bugs were addressed during this period, as efforts were concentrated on maintainability and quality improvements. The work demonstrates attention to developer usability and clarity, leveraging Python and documentation best practices for robust error reporting.