Worked on the picnixz/cpython repository to enhance error reporting during AST node generation, focusing on improving the developer experience and debugging efficiency. Developed a feature that delivers node-type specific error messages, providing clear feedback when incorrect field values are encountered. This approach leveraged Python and advanced AST manipulation techniques, with careful attention to robust error handling. The changes were aligned with ongoing community efforts, specifically referencing bpo-38131 and GH-17715, to ensure long-term maintainability. By refining the clarity of error messages, the work aimed to accelerate debugging, reduce triage time, and support a more intuitive development workflow for contributors.