Most idea validators give you what you want to hear. Greenbelt's Guardian system is designed to find every reason your idea might fail — so you can fix the weak spots before they cost you money.
Your idea faces a structured debate between a Builder agent (who argues for it) and a Guardian agent (who tries to kill it). An Adjudicator weighs the evidence and delivers a verdict.
Our graveyard database contains over 1,310 documented startup failure patterns extracted from real post-mortems. Every validation checks your idea against this dataset.
We don't rely on a single AI model. Guardian Debate and Venture Verdict tiers use multiple frontier models to reduce bias and hallucination.
Venture Verdict tier enriches your idea with real-time market research — competitor analysis, market sizing, and trend data from multiple sources.
Every validation returns a confidence percentage backed by specific evidence. Not vibes — data points you can act on.
Ideas that pass validation can flow directly into our build pipeline. We don't just tell you if it's good — we can build it too.
Your idea is checked against 1,310+ failure patterns from real startup post-mortems. This catches obvious red flags in seconds — for free.
A Builder agent constructs the strongest case for your idea. A Guardian agent systematically attacks it — citing market data, competitor analysis, and historical failures. An Adjudicator weighs both sides and delivers a verdict with specific proceed conditions.
Before the debate even starts, we compile a full research dossier — real-time competitor intelligence, market sizing, trend analysis, and regulatory landscape. The Guardian uses this data in the debate, so the verdict is grounded in current market reality.