Has anyone used an open coding agent in headless mode? I have a system cobbled together with exceptions going to a centralized system where I can then have each one pulled out and `claude -p`'d but I'd rather just integrate an open coding agent into the loop because it's less janky and then I'll have it try to fix the problem and propose a PR for me to review. If anyone else has used pi.dev or opencode or aider in this mode (completely non-interactive until the PR) I'd be curious to hear.

EDIT: Thank you to both responders. I'll just try the two options out then.

pi has an RPC mode which just sends/receives JSON lines over stdio (including progress updates, and "UI" things like asking for confirmation, if it's configured for that).

That's how the pi-coding-agent Emacs package interacts with pi; and it's how I write automated tests for my own pi extensions (along with a dummy LLM that emits canned responses).

Been using pi exactly for this and it's working great!

fast-agent lets you do this as well (and has a skill in its default skills repo to help with automation/running in container/hf job).

You probably want to look into pi then - it's extremely extensible.

you can run https://block.github.io/goose/ in headless mode (I work on goose)