Herdr
Herdr is a background runtime that keeps coding agents’ terminal sessions running when users detach and return from another machine.
What Herdr is
Herdr is a background runtime that keeps coding agents’ terminal sessions running when users detach and return from another machine. It organizes workspaces, tabs, panes, and agents in one terminal interface, marking agents as working, blocked, or idle. Herdr says it detects 22 agent command-line tools out of the box, including Claude Code, Codex, Cursor, OpenCode, Grok, Copilot, and Hermes. Panes and their processes continue while the client is detached, and saved session layouts can be restored after a server restart. Integrations can report session identities for resuming after a restart, and some also report agent state. Users can add SSH-accessible remote machines and see their workspaces alongside local ones. Herdr includes a local socket API and CLI for scripts, tools, and agents. The runtime is free, runs locally on macOS, Linux, and Windows, and is distributed under Apache License 2.0. Pane screen history is off by default because terminal output may contain secrets, tokens, prompts, and command output. Herdr Cloud is described as coming soon.
Good
- Keeps pane processes running while detached.
- Restores saved layouts after server restarts.
- Detects 22 agent CLIs out of the box.
- Works with SSH-accessible remote machines.
- Free and licensed under Apache 2.0.
Watch out
- Herdr Cloud is not yet available.
- Pane screen history is off by default.
- Marketplace listings are not reviewed.
Who it suits
Herdr suits developers managing multiple coding-agent sessions across local and SSH-accessible machines. It may also suit those who want session persistence, layouts, status indicators, or a local API and CLI.
Verdict
Herdr focuses on keeping agent terminal sessions available and organized across local and remote machines. Its default-off screen history and unreviewed marketplace listings are worth noting.
Plans and prices
From Herdr's own pricing page, checked 8 Oct 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Herdr runtime | Free | Apache 2.0 · runs locally on macOS, Linux, and Windows |
The facts
Each one read from Herdr's own pages, with the date it was checked.
What it does
- Agent compatibility
- Herdr says it detects 22 agent CLIs out of the box, including Claude Code, Codex, Cursor, OpenCode, Grok, Copilot, and Hermes.checked 8 Oct 2001
- Agent status
- Herdr marks agents as working, blocked, or idle so users can find agents that need attention.checked 8 Oct 2001
- API
- Herdr provides a local socket API and CLI for scripts, tools, and agents to control it.checked 8 Oct 2001
- Cloud availability
- Herdr Cloud is described as coming soon and intended to connect users’ machines without SSH setup.checked 8 Oct 2001
- Integrations
- Herdr integrations can report agent session identities for resuming sessions after a server restart, and some also report agent state.checked 8 Oct 2001
- Open source
- Herdr is distributed under the Apache License 2.0.checked 8 Oct 2001
- Persistence
- Herdr keeps panes and their processes running when the client detaches, and can restore saved session layouts after a server restart.checked 8 Oct 2001
- Plugins
- Community plugins are published on GitHub and discovered through the herdr-plugin topic; Herdr says marketplace listings are not reviewed.checked 8 Oct 2001
- Product
- Herdr is a background runtime that keeps coding agents’ terminal sessions running so users can return to them from another machine.checked 8 Oct 2001
- Remote access
- Users can add remote machines over SSH and see their workspaces and agents alongside local ones.checked 8 Oct 2001
- Security and data
- Pane screen history is off by default because terminal output can include secrets, tokens, prompts, and command output.checked 8 Oct 2001
- Support
- The maker’s site links to a Discord community and lists [email protected] as a contact email.checked 8 Oct 2001
- Workspace management
- Herdr organizes workspaces, tabs, panes, and agents in a single terminal interface.checked 8 Oct 2001
