Worked on the sequinstream/sequin repository to enhance the MiniElixir Validator, enabling it to accept underscore-prefixed parameters in function headers. This update allowed developers to use ignored parameters, such as _var, without triggering validation errors, supporting both standard and underscore-prefixed syntaxes in transform and route functions. The solution involved careful code validation and language parsing, ensuring compatibility with Elixir’s conventions for unused variables. By focusing on robust parsing logic and validation rules, the work improved the flexibility of function definitions in the codebase. The contribution demonstrated a strong understanding of Elixir and practical application of language parsing techniques.