This is a submission for the Sanity Challenge, Path Two: Vibe-Code Something Strange What I Built Vouch is a small mutual-aid app. Someone types or dictates what they need ("two bags of rice and a dozen eggs for my kids"). The app turns it into a checklist. Neighbors pledge items from that checklist. Whoever buys the items uploads the receipt, and the request closes with a certificate anyone can check. The strange part is that the AI can't write a single sentence. I di...