Worked on moltbot/moltbot to enhance cross-platform messaging reliability by addressing Unicode truncation issues in Slack and LINE integrations. Focused on backend development using TypeScript, the work involved implementing Unicode-aware truncation logic that respects surrogate boundaries and grapheme limits, ensuring message fields such as Slack arg-menu labels and LINE altText, location, menu, and code fields are safely truncated. This targeted bug fix reduced the risk of message delivery failures caused by improper truncation, improving consistency in payload processing across platforms. The approach emphasized robust API development, integration, and thorough testing to maintain reliable communication between messaging services.