News for hackers. Stuff that matters.
Re:Launch HN: Momentic (YC W24) – Agents that catch bugs by ... by momentichenry on Monday November 02, 2026 @04:08PM (#50343788)
Hey! I'm Henry, one of the engineers working on Mo. To answer your questions:

- I expect there will be many more competitors to come, as there already are. I also think achieving these performance improvements is non-trivial and depends on a lot of internal tooling we've built over the last two years (see next answer). As with any software, there will obviously be new competitors that match our historical performance eventually, but we will also be continuing to evolve our product. As you can see from the recall numbers in the benchmark, there is still a lot of room for improvement.

- Mo is really our second product. Over the last two years we've been building the Momentic e2e test framework and tooling around it, which allows engineering teams to own quality by authoring tests in plain-english and maintaining them with little to no effort. Mo builds on top of that nicely because we've already spent a lot of time tuning the underlying tools so that agents can use them efficiently to get better results.

- Real device support is already in the works! It should go live in the next couple of weeks. Would love to connect once it's ready.

Re:Launch HN: Momentic (YC W24) – Agents that catch bugs by ... by beavisringdin on Monday November 02, 2026 @11:56PM (#50348253)
Thanks for the response. Simple, agentic E2E testing and debugging for expo react native would be very useful for me, what's the best way to connect?
Re:Launch HN: Momentic (YC W24) – Agents that catch bugs by ... by khasan222 on Tuesday November 03, 2026 @08:26AM (#50351711)
I used playwright aria snapshots mainly, and less on screenshots because there is a lot of unnecessary info in the screenshot, but the aria snapshots do really well. Have you tried using aria snapshots for exploration too?

Also wow I have been building something similar to that 2 year endeavor. But I didn’t think to store the tests in the actual codebase because the idea was to never look at the codebase for the vibecoders and such. But reading all of this I’m rethinking my technique there, why have the artificial constraint?

Re:Launch HN: Momentic (YC W24) – Agents that catch bugs by ... by embedding-shape on Tuesday November 03, 2026 @09:45AM (#50352638)
> which allows engineering teams to own quality by authoring tests in plain-english and maintaining them with little to no effort.

How does this differ from Cubumber/Gherkin which basically promised the same? We all know how that ended up, why would you implementation of the same idea be different this time?