Worked on stabilizing text processing in the livekit/agents-js repository by addressing a critical bug in sentence tokenization. Focused on improving the accuracy of text parsing, the developer identified and corrected an incorrect capture group reference within a regular expression, which previously led to mis-tokenization of sentences. This fix enhanced the reliability of downstream parsing tasks and reduced the risk of errors in text analysis workflows. The work was implemented using TypeScript and leveraged strong skills in regex and tokenization. No new user-facing features were introduced during this period, with efforts concentrated on backend stability and correctness of text processing.