Herdr: A Dedicated Runtime Environment for AI Coding Agents

Overview of Herdr

Herdr is a software utility designed to act as a runtime environment specifically for AI coding agents. The project aims to provide a stable, persistent background layer for tools like Claude Code, Cursor, and various CLI-based agents. Unlike standard terminal multiplexers, Herdr is built to maintain session states for automated processes, allowing them to continue their workflow even if the primary client connection is lost or the SSH link is dropped.

Core Functionality

Herdr is built using Rust and is designed to operate as a standalone binary rather than an Electron-based application, aiming for a lightweight footprint. Key features include:

• Session Persistence: Provides a way to detach from a task without terminating the process, allowing for recovery after machine restarts.
• Cross-Machine Aggregation: Users can view and manage agents running across multiple local and remote machines from a single unified window.
• Agent-Native Control: Agents interact with Herdr via CLI and socket APIs, enabling them to spawn panes, prompt other agents, and monitor execution statuses.
• Terminal Integration: It integrates with existing terminal workflows, supporting both mouse interactions and tmux-style keyboard shortcuts.
• Operational Transparency: Each pane displays real-time status indicators (working, blocked, or idle), helping developers identify where an agent requires human input.

Implementation and Availability

Herdr does not replace or wrap coding agents; instead, it provides a persistent environment where these agents operate. It supports popular coding agents including Codex, OpenCode, and Grok. Users can install the tool via Homebrew, mise, or a Windows PowerShell installation script. The project is open-source under the Apache License 2.0. Users are encouraged to consult the official documentation at herdr.dev for configuration details and API specifications.