GitHub - ogulcancelik/herdr: agent multiplexer that lives in your terminal.

Detaching closes only the client. herdr server stop stops the default server and kills its panes. Named sessions are separate server namespaces: use herdr session attach work, herdr session stop work, and herdr session list when you want fully separate runtime state. Workspaces, tabs, panes. A workspace is the project-level container. Tabs group panes inside a workspace. Panes are real terminal processes, not rewritten agent views. Copy. Herdr copies pane text, not the sidebar. Drag-select inside a pane, double-click a word or token, or press prefix+[ for keyboard copy mode. In copy mode, move with h/j/k/l, w/b/e, and {/}, start selection with v or Space, copy with y or Enter, and leave with q or Esc. In PuTTY and some SSH terminals, hold Shift while dragging to use the terminal's own selection, and Shift + right click to paste. Update and restore. herdr update installs a new binary, but a running server keeps using the old process until it is stopped or handed off. Stop the old server to use the new version. Stopping exits pane processes. Run herdr server stop, then run herdr again for the default session. For a named session, run herdr session stop <name>, then run herdr session attach <name> again. herdr update --handoff is experimental and tries to move live panes, including foreground processes such as dev servers, from the old server to the new one. With current official integrations installed, supported agent panes can restart from their native agent sessions after a server restart or update. Keybindings. Herdr uses explicit keybinding strings. prefix+n means press the configured prefix, then n. ctrl+alt+n, cmd+k, alt+1, and function-key chords are direct terminal-mode shortcuts and do not need the prefix. Plain direct printable keys such as n steal normal typing, so use prefix+n unless you intentionally want a modifier-gated direct binding. Agent awareness. The sidebar shows blocked, working, done, and idle states. Detection works with process names and terminal output by default. Official integrations can add native session identity for restore, semantic state reports, or both. update Herdr notifies you when a new version is available. Run manually: herdr update herdr update is for installs managed by Herdr's own installer.

Homebrew, mise, and Nix installs update through brew upgrade herdr, mise upgrade herdr, or your Nix workflow, then use the same stop-and-run-again flow if a session is still running the old server. Linux and macOS direct installs can opt into development preview builds with herdr channel set preview and return to stable with herdr channel set stable. Windows beta installs are preview-only for now. See install docs and session state docs for the full update, restart, restore, and handoff matrix. Linux and macOS direct installs use the stable update channel by default. Windows beta installs default to preview. To test preview builds from master before the next stable release: herdr channel set preview To return Linux and macOS direct installs to stable: herdr channel set stable For direct installs, changing channels also checks that channel and installs its latest binary. If that update fails, run herdr update to retry from the configured channel. Preview is only for direct installs managed by Herdr's updater. Homebrew, mise, and Nix stay on stable and update through their package managers. how it compares

tmux gui managers herdr

persistent sessions ✓ — ✓

detach / reattach ✓ — ✓

panes, tabs, workspaces ✓ ✓ ✓

agent awareness — ✓ ✓

lives in your terminal ✓ — ✓

real terminal views ✓ — ✓

mouse-native — ✓ ✓

lightweight binary ✓ — ✓

agents can orchestrate ? ? ✓

tmux gives you persistence and panes, but it was built before agents existed. gui managers show agent state, but they make you leave your terminal and use their wrapped view. herdr is persistence and awareness in one tool that stays out of your way. remote and attach Herdr works over normal SSH.

Run it on the remote host, detach, and reattach later: ssh you@yourserver herdr

You can also attach from your local terminal without opening a shell first: herdr --remote workbox herdr --remote ssh://you@yourserver:2222 Remote attach adds fallback SSH keepalives by default while preserving your own SSH config. Set [remote].manage_ssh_config = false to use plain ssh. Direct attach connects your current terminal to one server-owned terminal: herdr agent attach <target> herdr terminal attach <terminal_id> See persistence and remote docs for remote keybinding, named-session, and handoff details. agent awareness the sidebar shows which agents are blocked, working, or done. workspaces roll up to their most urgent state so you can scan the full list at a glance. states:

🔴 blocked — agent needs input or approval 🟡 working — agent is actively running 🔵 done — work finished, you have not looked at it yet 🟢 idle — done and seen

detection works by reading foreground process and terminal output. zero config, no hooks required. official claude code, codex, github copilot cli, devin, droid, kimi code cli, qodercli, and cursor agent cli integrations provide session restore identity; pi, omp, kimi code cli, opencode, kilo code cli, hermes, and custom socket integrations can report their own state. lives in your terminal not a gui window, not a web dashboard, not electron. herdr runs inside whatever terminal you already use. single rust binary, no dependencies. works inside tmux as the outer terminal environment. what you get

workspaces — organized around git repos or folder names, each with its own tabs and panes tabs — first-class in the socket api and cli copy-friendly — drag-select pane text, double-click tokens, or use keyboard copy mode with prefix+[, h/j/k/l, {/}, v, and y notifications — sounds and toasts for background events; tab-aware suppression 18 built-in themes — catppuccin, terminal,