A terminal for running many agents at once.

Workspace organization

A vertical, two-level sidebar groups sessions under named workspaces like "work" and "personal". Drag between them, split into two shells, and reach any session by name, recency, or keyboard.

Programmatic control

A bundled CLI, agtermctl, drives almost everything over a local socket: create sessions, type into them, run overlays, move windows, or post a notification tied to a specific session.

Agent status at a glance

Each agent reports its state onto its sidebar row as a tinted glyph — active, blocked, or completed — so a screen of concurrent agents shows which one needs you. Wiring is automatic for Claude Code and Codex.

A surface built for flow

Split a session, drop a scratch terminal over it, or run a program in a floating overlay without disturbing the session beneath. Jump anywhere with a fuzzy palette; flip through recents with Ctrl-Tab.

Driven by agents

An installable agent skill teaches Claude Code or Codex the control model and the full agtermctl command set — so an agent running inside agterm builds its own layout, runs overlays, and manages windows without you explaining the API.

Not just for agents

Everything works as a capable general-purpose terminal for everyday multi-project work — 512 bundled themes, live-preview theme picker, custom key mappings, and full session persistence across launches.

Two shells side by side in one session — run the agent left, watch logs right. The inactive pane dims toward the background so the focused one is always obvious.

A per-session third shell that covers the session full-screen. Opens in its directory, always available, and just hidden — toggle it back and the same shell is waiting.

One window-wide scratch, overlaid at 90% and shared across the window. It opens in the active session's directory for a fast aside — dismiss it with the same key or a click on the margin.

Run any program full-screen or in a centered floating panel over a session, without disturbing the shell beneath. When it exits, the overlay vanishes and the session is exactly as you left it.

A window is a top-level bundle of workspaces and sessions, each in its own on-screen macOS window. Keep a library of them — "work" on one screen, "personal" on another — and open one per display. The set open at quit reopens next launch, frames restored.

Every ability, scriptable.

Almost everything you can do in agterm by hand, agtermctl can do over a local socket — no hidden UI-only actions. That turns the terminal into something you program around your own flow: a script or an agent builds and steers its own layout, and you extend the app's behavior without ever touching its source.

# create a workspace and open a session in it
ws=$(agtermctl workspace new work)
agtermctl session new --workspace "$ws" --cwd ~/src/agterm

# inject a command into a session by id prefix
agtermctl session type --target 9f3c $'make test\n'

# run a diff review in a floating overlay, block for its status
agtermctl session overlay open "revdiff HEAD~3" --block

# flag this session for your attention when it finishes
agtermctl session status completed --auto-reset \
  --target "$AGTERM_SESSION_ID"

The cask also installs the agtermctl CLI, so cask users shouldn't run the in-app installer too.

Grab the latest .dmg from releases, open it, and drag agterm.app into /Applications.

Requires macOS 14+, Xcode 26 with xcodegen, and Homebrew.

Terminal for agentic flow. Embeds libghostty, the terminal engine from Ghostty (MIT).