Proposal Ai - AI proposals that flag bad clients before you apply

Hey Product Hunt! 👋 I'm Isaac, the solo founder behind ProposalAI. I wanted to share the story behind why I built this. I've been freelancing on Upwork for a while and kept running into the same frustrating cycle — spend 20+ minutes crafting a thoughtful proposal, only to find out the client had no payment history, a vague brief, and a budget that wouldn't cover an hour of work. I built ProposalAI to solve that problem for myself first. What started as a personal tool turned into something I thought other freelancers would genuinely find useful. The red flag detection is the feature I'm most proud of — it analyses the job posting and warns you about things like vague scope, unrealistic budgets, and missing client details before you waste your time applying. A few things I'd love feedback on: Is the fit score useful or just a vanity metric? What red flags am I missing? Would you use this for platforms other than Upwork? Built this in under a week using Lovable, Claude API, Supabase and Stripe — with no traditional coding background. Happy to answer any questions about the build process too. Try it free 👉 https://proposalai-app.lovable.app Thanks for the support 🙏