Alexandre Crayssac contributed to the spiceai/datafusion repository by delivering an internal API consistency refactor focused on the SessionContext component. He standardized the method signatures of register_batch and register_arrow to align with other register_* methods, addressing inconsistencies that could complicate future maintenance. Working primarily in Rust and applying principles of API design and software development, Alexandre ensured the changes were validated through type checking, minimizing risk and supporting safer downstream extensions. This work, captured in a single, focused commit, did not introduce user-facing changes but laid a foundation for easier contributor onboarding and more maintainable code in the long term.