Launch HN: Coasty (YC S26) – An API for computer-use agents

Coasty rolled onto Hacker News with a big promise: let software run tasks on managed computers, chain those jobs together, and only step in when you want tighter control. In plain English, it wants to be the service that lets an artificial intelligence helper click around a computer and get stuff done for you. That’s the pitch. But the real show was the instant side-eye from the crowd.

The strongest reaction was basically: "Okay, but why you?" One early commenter cut straight to the pressure point, asking how Coasty is different from the other similar tools already showing up in the same startup scene. Ouch. That single question set the mood fast: less confetti, more interrogation lamp. The drama here isn’t a giant flame war, it’s that classic startup launch tension where the audience smells a trend and immediately demands receipts. If everyone is building a robot helper for your computer, people want the one-sentence answer for why this one deserves attention.

And yes, there’s a tiny meme energy to it too: the unspoken joke is that every new launch now has to survive the "isn’t this the same thing again?" test. Coasty came to debut a future where software does your digital busywork. The commenters came to make sure it’s not just another shiny button on the same old machine.