Worked on the jeejeelee/vllm repository to address a critical issue in streaming token retrieval when tool parsers are enabled. Focused on backend and API development using Python, the work involved fixing a bug that previously caused incomplete token outputs in streaming mode. By ensuring all tokens are included in return_token_ids, the update improved data integrity for downstream parsers and tooling that rely on complete token streams. The solution was validated to maintain existing streaming performance, with no regression in throughput or latency. This targeted fix enhanced the reliability of streaming data handling in workflows dependent on accurate token delivery.