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Appofficial publisher

herdr

App : A product you use directly

Agent multiplexer in Rust that detects Claude Code, Codex or Amp and displays their status: blocked, working, done, idle.

The next-generation tmux for anyone running multiple agents, on any OS.

Official site GitHub · 45,726 ★
Overall score
7.3 /10
Security: one caveat, see the card
Utility
7.0
Reliability
10.0
Security
One caveat
Ease
5 min · Technical

Security reflects where data goes, requested permissions and incidents on record at the verification date. It is not a guarantee of zero risk: check the deployment mode and the connections you enable.

What it does, concretely

When running several coding agents in parallel, it quickly becomes hard to know which one is waiting for an answer, which is still working, and which has finished. Herdr solves this by acting as a centralised runtime for all your agents, regardless of how many you run or which tools you use.

Herdr works as a background server that keeps terminals alive even if you close your client or lose your SSH connection. Each pane is marked in real time as working, blocked, or idle, and a local socket API lets agents drive each other, spawn panes, or wait until another agent is genuinely blocked before stepping in.

The tool is aimed at developers who orchestrate multiple coding agents such as Claude Code, Codex, Cursor, opencode, or Grok, across one or several machines. It does not replace those tools: it owns their terminals and groups them in a single window, with both keyboard and mouse navigation.

Herdr is not suited to those who only run one agent at a time or who have no need to leave processes running in the background. Getting started requires a reasonable comfort level with command-line environments.

What it offers

  • ·Automatic detection of 21 recognised coding agents, with real-time status display: working, blocked, or idle.
  • ·Background server that keeps terminals and sessions alive even after closing the client or losing an SSH connection.
  • ·Layout restoration and session resumption for supported agents after a server restart.
  • ·Connection to multiple machines over SSH, with a unified agent list and independent reconnects per machine.
  • ·Local socket API and CLI interface allowing agents to spawn panes, drive each other, and synchronise.
  • ·Hybrid navigation with keyboard (tmux-style prefix keys) and mouse (click, drag, split panes).
  • ·Extensible plugin system with a community marketplace.

In practice

Price
Free
Commercial use
Commercial use: yes
Available on
linux, macos, windows, cli
Licence
Apache-2.0

Security and data

Rating
Security: one caveat, see the card
Your data
Data stays local
Maintenance
Active
Last release
14 October 2026

Links and repository checked on 25 October 2026 · added on 1 May 2026

How to install herdr

1. Open a terminal on the machine where your agents should run. 2. Run the install command: curl -fsSL https://herdr.dev/install.sh | sh (on Windows: powershell -ExecutionPolicy Bypass -c "irm https://herdr.dev/install.ps1 | iex"). 3. On Windows with a restrictive security policy, check herdr.dev/docs/windows-beta/ before running the script. 4. Once installed, start herdr with the herdr command in your project directory. 5. Launch your usual agents in the panes: herdr detects them automatically and displays their status. 6. Detach with Ctrl+B then Q; run herdr again to reattach from any machine.
curl -fsSL https://herdr.dev/install.sh | sh

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