Vintage fun: Prodding AI agents using retro hardware just because you can

The ability to interact with AI agents using older, simpler hardware means current AI protocols are more adaptable than previously assumed.

AWS developer advocate Darko Mesaroš has successfully connected a vintage teletype machine to modern AI agents, specifically the AWS Kiro command-line interface (CLI). The project involved overcoming challenges in data transfer and output formatting to enable interaction with AI technology using hardware that predates modern computing by decades. Mesaroš utilized a WiModem232 for serial connection and the Agent Client Protocol (ACP) to communicate with Kiro. A custom Rust application was developed to adapt Kiro's output for the slow, text-only display of a teletype. While Mesaroš describes the endeavor as "pointless," he highlights its educational value in understanding Rust, containerization, ACP, and serial debugging.

Mesaroš's project demonstrates that the Agent Client Protocol (ACP) is robust enough to support communication with a wide range of AI services, not just Kiro. This suggests that other coding assistants or harnesses supporting ACP, such as Claude Code or Codex, could potentially be integrated with similar retro hardware. The core challenge lies in adapting the output for the limited capabilities of older devices, a problem Mesaroš solved with a custom Rust application.

This initiative underscores a growing trend of bridging the gap between legacy systems and cutting-edge AI, driven by both curiosity and the pursuit of deeper technical understanding. It highlights how fundamental protocols and creative software engineering can enable modern AI functionalities on vastly different hardware, proving that the current AI landscape is more flexible and accessible than it might initially appear.