Worked on the antvis/GPT-Vis repository to address a critical stability issue affecting dual-axes chart rendering. Focused on frontend development and data visualization, the work involved removing an explicit data: undefined assignment and excluding the data field from the base configuration, which previously caused rendering failures. By aligning configuration handling with defined data paths and linking changes to a tracked issue, the solution restored chart stability and reduced production crashes. Demonstrated defensive coding practices in TypeScript, improving resilience against similar edge cases. The approach emphasized maintainability and traceability, ensuring that future updates to chart configurations remain robust and reliable.