Crucible runs your Web3 decision through a four-agent sequential audit pipeline: Agent I - Bias Hunter: Identifies every cognitive bias corrupting your reasoning. Names each one, quotes the exact phrase revealing it, and rates your Bias Density out of 10. Agent II - Bear Case Builder: Constructs the most credible case against your position. Delivers a Bear Thesis, three specific failure reasons, and a Collapse Scenario. Agent III - Assumption Extractor: Surfaces every hidden assumption you haven't validated. Rates each FATAL / HIGH / MEDIUM / LOW and names the single one that destroys everything if false. Agent IV - Reasoning Auditor: Synthesises all three agents into a final Crucible Audit Report — a Reasoning Score out of 100, top risks ranked, a corrected version of your position, three on-chain verifiable questions to answer before committing, and a one-sentence final verdict. Built for DeFi traders, DAO voters, and on-chain strategists who want a brutally honest second opinion before they commit.