herdr
herdr is an open-source terminal multiplexer designed specifically for users who work with command-line AI coding agents. Unlike traditional multiplexers such as tmux or screen, herdr is agent-aware, meaning it can detect the status of running agent processes, provide visual indicators for task completion, and manage persistent workspaces that survive disconnects. It offers a familiar interface with tabs and panes, allowing developers to organize multiple agent sessions and terminal activities side by side. Built with modern terminal workflows in mind, herdr enables developers to run several coding agents concurrently, monitor their progress through status bars, and instantly know when a task has finished or encountered an error. Its persistent workspace feature ensures that all session layouts, running processes, and agent states are saved automatically, so users can reconnect to their environment exactly as they left it, even after a terminal restart or network interruption. herdr integrates seamlessly with popular CLI-based AI coding tools, making it an essential utility for developers who rely on agents for code generation, debugging, refactoring, or other automated tasks. By centralizing agent management in one multiplexer, it reduces context switching and improves productivity, especially in long-running or batch agent operations.
- Category
- AI Agents
- Pricing
- Open Source
Problem solved
Developers using terminal-based AI coding agents often juggle multiple sessions, each running in separate terminal windows or tabs. Losing track of agent states, manually reopening workspaces after disconnects, and switching between contexts reduces efficiency. herdr solves this by providing a multiplexer that understands agent lifecycles: it detects statuses, preserves session layouts and workspaces persistently, and consolidates all agent interactions into a single, organized interface.
Use cases
- Running multiple AI coding agents in separate panes to work on different parts of a codebase simultaneously
- Monitoring long-running agent tasks (e.g., code refactoring or test generation) with visual status indicators
- Restoring a complete development environment with all agent sessions after a terminal crash or intentional restart
- Organizing agent output logs and command histories in dedicated tabs for later review
- Using herdr as a shared workspace for pair programming with AI agents visible to all collaborators
- Automating routine agent tasks while keeping interactive shells available in other panes
Audience
- Developers
- ML Engineers
- Data Scientists
Pros
- Agent-aware status detection improves workflow visibility
- Persistent workspaces eliminate manual session rebuilding
- Familiar multiplexer interface lowers learning curve for tmux users
- Open source with permissive licensing (MIT)
- Lightweight and easy to install from source
Cons
- New tool with potentially limited community and plugin ecosystem
- May lack support for some terminal emulators or complex configurations
- Documentation might be sparse during early releases
Official website: https://github.com/ogulcancelik/herdr
Canonical LambdaBase page: https://www.lambdabase.com/tools/herdr