Show HN: Promptly – Collaborative AI Writing

Adam and Wojciech here. We've been hacking away on Knowbase.one - our B2b search engine - for about 8 weeks now. Something weird happened during our coffee sync-ups: we realized the AI had basically become our third co-founder. We'd huddle with our laptops, draft prompts in Google Docs, feed them to Claude, then paste the responses back. Like pair programming, but with a machine that doesn't drink coffee.

This workflow worked, but was clunky. We'd be building our actual product while simultaneously talking about how there should be a better way to do this with some tool for AI collaboration. We tried some existing solutions, but everything was too complex for us. We took a detour and hacked together Promptly - basically a shared Google Doc for humans talking to AI. It's what we wished we had when we were passing laptops back and forth trying to show each other "check out what happens when you phrase it this way."

We've shown it to some friends and the pattern is clear: folks who don’t use AI or use it for production work have no idea what’s this for :) Those that already talk to AI a lot get it right away. Especially when they're trying to teach other people how to prompt properly. You know that frustration when someone's doing it wrong and you want to grab their keyboard? That's what we're fixing.

And it's not just for us nerds. Writers, marketing people, researchers - anyone who treats AI like another person on the team rather than just some fancy calculator. We'd love your brutally honest feedback. Hit us up on Twitter or shoot an email to contact@knowbase.one. And hey, if you're willing to really kick the tires and tell us what sucks, we'll hook you up with free credits.