GitHub Repository

Wrap a command in a PTY and control it from the outside — read output, screenshot the screen, send input, attach/detach. Handy for scripts and AI coding agents.

3 starsRust

Babysit – let coding agents operate a TUI

Name: Babysit – let coding agents operate a TUI
Availability: InStock
Author: yusukeshibata

by yusukeshibata·Jun 16, 2026·1 point·0 comments

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AI Analysis

●●SolidBig BrainNiche Gem

PTY screenshots and expect patterns let agents operate TUIs without human help.

Strengths

•Background worker owns PTY so terminals can attach and detach freely
•Screenshot command renders TUI screens for agent vision
•Expect/wait commands block until patterns appear

Weaknesses

•Unix-only with no Windows support
•Niche audience of developers building agent workflows

Post Description

I've been trying to automate my work recently, but I ofeten encounter the situation where agents needs human intervention to complete the task. So I made a simple command that wraps a TUI called babysit that has a terminal emulator inside using pty. Agents can start commands in background, and they can ask human by attaching the TUI on a new tmux pane when human intervention is needed, or they can operate the TUI with screenshot/send/expect/wait commands. So far, I really like using it, and I wanted to share it here.

https://github.com/yusukeshib/babysit