What is Atrium?
Atrium is a calm, single-window cockpit for everything you run while building software: coding agents (Claude Code, Codex, …), terminals, and dev servers — organized into projects, all visible at a glance. It’s a native desktop app (Tauri 2 + React + xterm.js), built for Windows + WSL2 and macOS.
The one-sentence version
Section titled “The one-sentence version”Atrium organizes what’s running; it doesn’t run the work for you.
You launch the agents and commands; Atrium keeps them in one quiet place, shows you their live state, and stays out of the way.
What it’s for
Section titled “What it’s for”- Stop alt-tabbing across terminal windows. Projects → groups → panes, each a live terminal that stays alive when you switch away. Sessions restore when you reopen — Claude panes resume the exact conversation.
- Know what’s happening without staring. A status orb per pane (solid while running, pulsing while working, breathing when an agent needs your input), the live working directory + git branch, and context-window usage % on Claude panes.
- See every project at once. A dashboard with each project’s live status, plus an attention rail that surfaces crashed or waiting panes even from background projects.
- Work across git worktrees. A worktrees lens over the sidebar, full create/remove/prune lifecycle from the UI, and a per-worktree cockpit view — built for running parallel agents on parallel branches.
- Jump anywhere. The Switcher (
Ctrl+Shift+K/⌘⇧K) fuzzy-jumps to any pane, project, worktree, or view across everything you have open. - Give your agents situational awareness — if you want. An opt-in local MCP server lets an agent ask what else is running, read another pane’s logs, and leave TODOs/notes you’ll see in the dock.
What it is not
Section titled “What it is not”Atrium is deliberately not an orchestrator. It won’t dispatch agents, run a meta-agent, or drive work across projects on its own. The autonomy is the agent’s; the trigger is always yours. That boundary — visibility-in, never control-out — is a hard architectural line, not a setting (see Core concepts).
The crowded 2026 lane is multi-agent orchestration. Atrium’s lane is the quieter, more durable one: the calm cockpit + cross-agent awareness + shared memory — including, on Windows, across the WSL boundary that other tools don’t cross. On macOS there’s no such boundary; the same cockpit just drives your native shell directly.
Free and Pro
Section titled “Free and Pro”Atrium’s full local organizer — everything described in these docs unless marked otherwise — is free, no caps, no nags. A Pro edition (“augmentation”: desktop notifications, named workspaces, Switcher actions, per-worktree runtime vars) is in active development as a one-time-purchase edition; today’s releases ship a single standard build, and the genuine free/pro installer split lands ahead of 1.0. Nothing is purchasable yet.