Over the last couple of months, I've been building an AI development tool that treats CLI AI dev harnesses as first class citizens. With Claude's SDK pricing changes on the horizon, I wanted to avoid getting locked in to paying API rates for something I already had a subscription for.
It started after my computer crashed and iTerm didn't restore my sessions, so I set out to solve that problem initially. I liked it and added functionality till it became my daily driver. I ended up with atrium and I'm enjoying it so much I thought maybe others would, too.
A little about the principles I started following as I built:
Organization - everything fits into a hierarchy of workspaces, rooms, panes (agents, terminals, browser, notes, source control, etc), and stacks within a highly customizable mosaic.
Persistence - everything, including AI sessions, long-lived processes, rooms, and panes, is saved in real time and restores (and auto-resumes!) in its entirety whether you restart or crash. State is file-based and git backed for extra reliability.
Visibility - sidebars surface detailed agent cards, changes, long-lived processes, and activity. In-app and OS notifications keep you on top of everything.
Control - atrium ships a comprehensive CLI that allows you and agents to drive anything in atrium: open browser panes, spawn other agents, create tasks or notes, or dream up pretty much anything.
It's in early access right now (and I make no guarantees you won't notice) and free to download. All I ask is for feedback :) If you have other solutions to the problems above, I'd love to hear em in the comments!
Download: https://getatrium.dev Full walkthrough (~22 min): https://www.youtube.com/watch?v=3H7rbn2KFm8
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