Worked on enhancing simulation workflows and API reliability across the informalsystems/quint and elizaOS/eliza repositories. Developed a Rust-based simulator feature that introduced a user-facing progress bar and updated the CLI wrapper for real-time feedback, adding an optional simulation parameter for finer control. In elizaOS/eliza, implemented a new API endpoint using TypeScript and Express.js to retrieve detailed agent room information, including robust input validation and error handling, with optional enrichment of room data for improved UI context. Updated automated tests to cover these changes, ensuring compatibility and reducing integration friction, which contributed to smoother development and more reliable data retrieval.