I’m building this! It was originally designed for human accessibility for interactive CLIs, but it turned out to be really useful for giving agents the ability to follow structured workflows.

It runs as a background terminal that the agent can observe, and then exposes all interaction options as structured commands that can be run from the foreground CLI which then update the state of the background terminal via IPC. My hope is to establish a sort of “ARIA for terminals” standard to improve accessibility for both humans and agents. Email in profile, ping me if you’re interested in giving it a spin (just have plugins for Inquirer + Commander right now, hoping to broaden to other frameworks & TUIs soon).

I reverted this due to impending billing changes, but Claude and most LLM providers to my knowledge do offer a way to directly fire a prompt to the LLM in a "headless" or non-interactive mode. Specifically "claude -p <your_prompt_here>" is the way to do it with Claude Code. It allows for using the agent to do a one-off command with a given structured prompt. Originally Lathe would use this from the Go application to allow you to extend a tutorial directly from the UI without directly interacting with the LLM.

You'd have to exec out, so it's alittle clunkier than an IPC, but I think you could achieve what you want with it.