Worked on the jeejeelee/vllm repository to enhance the Rust Frontend Sampling API by adding support for repetition detection parameters. Developed the RepetitionDetectionParams struct and integrated it into the API’s request validation and conversion logic, ensuring that only valid configuration settings are processed. This approach improved the configurability and correctness of sampling, reducing the risk of invalid runtime behavior and establishing a foundation for future tuning. The work involved backend development and API design using Rust and Protocol Buffers, focusing on robust parameter handling and safer runtime execution. No bugs were fixed during this period, with efforts concentrated on new feature delivery.