Beta · v0.1.1Mac only

Nimrobo runs on a Mac.

Nimrobo runs on macOS — the harness runs entirely on your machine. This is an early build, and it updates itself: install it once and new releases arrive in the background.

Download for Apple silicon

On an Intel Mac? Download that build instead

macOS 12+ · Signed and notarized by Apple · Bring your own Claude or ChatGPT sign-in

What you get on the Free plan

  • The complete Nimrobo harness
  • 1 active outcome project
  • Levers, hypotheses, experiments, and verdicts
  • Default, Manual, and Plan modes with per-action approvals
  • Skills and subagents
  • Sign in with your existing Claude or ChatGPT subscription

Starter ($5/month) and Plus ($20/month) add more concurrent outcome projects, Nimrobo-hosted models, and hosted web search. Compare the plans

Dashboard · Outcome
Outcome HarnessLocal outcome loops
onboarding activation
Add skillChatRun next action▾
Outcome
Levers
Hypotheses
Experiments
Sessions
Files
Settings
North star
67.1%
▲ 0.3 vs 20/07/2026, 06:00
activation_rate_7d · increase is better · read 27/07/2026, 06:00
activation_rate_7d67.1%
11/06/202627/07/2026
▸ View exact readings
support_tickets_7d41 tickets
11/06/202627/07/2026
time_to_first_action_p504.2 min
11/06/202627/07/2026
4 open bets · 3 open experiments · 9 shipped artifacts
Outcome pulse
3experiments open
4hypotheses open
9artifacts shipped
Last outcome reading 27/07/2026, 06:00. Next collection 03/08/2026, 06:00.
Last 5 sessions
outcome actionShip checklist variant B to the 10% cohort27/07/2026, 09:12runningOpen
updateFold rep-3 reward into the sample-workspace verdict26/07/2026, 18:40completedOpen
outcome actionDraft the day-1 stalled-team email25/07/2026, 11:02waitingOpen
outcome actionRead activation for week 29 and log the snapshot24/07/2026, 06:04completedOpen
chatWhy did tooltips lose to the checklist?23/07/2026, 20:31completedOpen
Platform
macOS
Architecture
Apple silicon · Intel
Data
Local, git-tracked folders
Models
Claude · ChatGPT · Nimrobo-hosted