Compare Herdr

The agent multiplexer that lives in your terminal.

Herdr gives coding agents the thing tmux gave terminal users: persistent real panes, detach and reattach, remote access, and a control surface. Then it adds agent state and an API the agents can use.

Quick start See the matrix

Herdr combines

tmux persistence, agent awareness, no terminal replacement.

Runs inside your existing terminal
Owns persistent PTY sessions
Attaches locally, over SSH, or directly to one agent
Tracks blocked, working, done, and idle state
Exposes CLI and socket APIs agents can drive

The stack

Pick the center of gravity.

The question is not whether a tool can run a terminal. Most can. The question is whether it combines terminal-native persistence with agent state and agent-controlled automation.

Capability	Herdr	tmux / Zellij	cmux / Warp	Solo	Conductor / Emdash / Superset
Runs inside your existing terminal	yes	yes	no, terminal app	no, desktop app	no, app workspace
Persistent PTY session runtime	yes	yes	session/app restore	managed processes	embedded terminals
Detach, reattach, and SSH in	yes	yes	partial	no	remote projects
Direct attach to one agent terminal	yes	no	no	no	no
Semantic agent state	blocked / working / done / idle	no	attention or native-agent status	process status	workspace status
Agent-shaped API	read, send, wait, split, attach	terminal scripting	app APIs	MCP for processes	workflow APIs
Git worktree and diff review flow	pairs with it	no	partial	no	yes

How Herdr differs

The intersection other tools miss.

Herdr

Persistent terminal runtime, built for agents.

Herdr keeps real terminal panes alive like a multiplexer, but treats agents as first-class runtime objects. You can scan state, jump to blocked work, attach directly to one agent, and let agents read, send, split, and wait through the CLI/socket API.

existing terminalpersistent PTYsSSH attachdirect agent attachagent stateagent API

tmux / Zellij

Classic multiplexers stop at terminals.

They own panes and persistence. They do not know which pane is blocked, working, done, or ready for an agent wait.

cmux / Warp

Terminal apps replace the terminal.

They can add polished desktop UX, but the workflow moves into their app. Herdr stays inside the terminal you already use.

Solo

Dashboards supervise processes.

Process health and auto-restart are useful, but Herdr is about persistent interactive agent panes, not dev-stack supervision.

Conductor / Emdash / Superset

Worktree tools own review flow.

They are for branch isolation, diffs, and PRs. Herdr is the live terminal layer those agents can run inside or alongside.

One-line comparisons

Use this when deciding.

Herdr vs tmuxtmux persists terminals; Herdr persists agent workspaces and understands agent state.

Herdr vs ZellijZellij is a modern terminal workspace; Herdr is an agent multiplexer with state, waits, and orchestration.

Herdr vs cmuxcmux is a Mac terminal app for agents; Herdr is a terminal-native multiplexer that runs anywhere your terminal and SSH do.

Herdr vs WarpWarp is an agentic development platform; Herdr is the local terminal control layer for your existing agents.

Herdr vs OpenCode webOpenCode's web mode serves one agent over HTTP; Herdr is a terminal-native multiplexer for many agents and harnesses, reachable over plain SSH.

Herdr vs SoloSolo manages your dev stack; Herdr manages persistent interactive agent panes.

Herdr vs Conductor, Emdash, SupersetThey orchestrate isolated worktrees and review diffs; Herdr orchestrates live terminals and agent state.

Start with the multiplexer

If your agents live in terminals, put the terminals in Herdr.

Install Herdr, run two agents, split a pane, then detach once. The difference is obvious when the agents keep running.

Install Herdr Quick start