I'm a PM. 12 years, mostly zero-to-one. I built a free skill that does the part of app-building everyone skips and then regrets. It's called vibe-check. Open-source, drops into Claude, Codex, or Antigravity. It doesn't write your code. AI does that now. It does the harder thing that comes before the code: figuring out whether your idea is worth building, and what to build first if it is. It grills the idea. Checks whether the problem is actually real or just real to you. Then it hands you a plan you can take straight to your AI to build from. Here's the uncomfortable part it's built around. The code was never the hard part. Everything before the code is. Skip that and you ship something that runs beautifully and nobody wants. I've done it. I've watched sharp people do it too. It's early but real, 24 stars so far, and I want testers. Especially the one of you with an idea you keep not building. Point it at that idea and tell me exactly where it falls apart. https://github.com/TexasBedouin/vibe-check