During April 2025, Leo Juguet developed a new feature for the jasmin-lang/jasmin repository, focusing on enhancing the Jasmin compiler’s metadata export capabilities. He implemented a command-line option that outputs detailed information about exported functions—including target architecture, arguments, return values, and annotations—in structured JSON format. This required integrating export-info collection directly into the main compiler pipeline, ensuring consistent and reliable metadata across builds. Working primarily in OCaml, Leo applied skills in code generation and JSON serialization to improve interface analysis and facilitate downstream tooling integration. The work addressed cross-architecture compatibility and improved debugging by making metadata more accessible and standardized.