attyvo

A tool that enables non-interactive programs to interact with interactive CLIs by providing a pseudo-terminal (PTY) interface.

Overview

attyvo acts as a bridge between programs that expect terminal input/output and non-interactive environments. This is particularly useful for AI coding assistants like Claude Code, which need to interact with interactive command-line tools programmatically.

Installation

cargo install attyvo

Features

• Creates pseudo-terminals for interactive CLI programs
• Manages multiple daemon processes
• Handles bidirectional communication between non-interactive callers and interactive programs
• Supports process lifecycle management (start, stop, kill-all)

Use Cases

• Enabling AI tools to interact with interactive CLIs (e.g., database shells, REPLs)
• Automating interactive command-line workflows
• Testing interactive CLI applications

Commands

• start - Start a new daemon process
• stop - Stop a running daemon
• kill-all - Terminate all running daemons
• list - List all running daemons
• send - Send input to a daemon
• read - Read output from a daemon

Why attyvo?

Many command-line tools detect whether they're running in a terminal and change their behavior accordingly. Without a proper PTY, these tools may refuse to run interactively or provide limited functionality. attyvo solves this by providing a real PTY interface, making it possible for automated tools and AI assistants to interact with any CLI program as if a human were typing at a terminal.