PeonPing is a terminal notification tool that adds audio feedback using voice lines from video game characters to AI coding agents. It plays sounds for events such as an agent starting work, requesting approval, completing a task, or hitting an error, allowing developers to avoid constantly watching silent terminals and maintain workflow without interruption. The tool integrates with AI coding environments including Claude Code, Cursor, Codex, and others through hooks or an MCP server that lets agents select sounds themselves.