SailCast
Running, but not public yet.
SailCast pulls the ECMWF weather model through Open-Meteo and turns it into an hour-by-hour sailing score for Port Phillip Bay, tuned to your skill level, your boat and your marina, with morning alerts. It's for recreational sailors who want to know when to go, not to read wind charts. Its north-star measure is sessions sailed, not time spent in the app. Behind it, an AI chief of staff built in Paperclip sends both cofounders daily briefings, evening wraps and weekly digests over Slack.
The story
I wanted to see whether two non-technical cofounders could start a real product with AI doing the operations. My cofounder knows sailing; I ran the AI side.
We set up a Paperclip org whose first agent, a chief of staff on a one-hour heartbeat, briefed us both on Slack and asked for decisions. We built the site and a strategy, and SailCast is running, but not public yet.
- Launched
- Not public yet. The chief of staff agent went live in April 2026.
A few tips
- Pick a north-star metric from the user's real life: sessions sailed, not app engagement.
- Write a decision matrix for the agent: what always needs a cofounder, what waits 24 hours then proceeds, and what never blocks.
- Let the agent reach the cofounder who isn't technical where they already are, like Slack DMs, instead of a new tool.
Related files on this desktop
Tools I used for this project
