What problem does it solve? Teams commit to product directions without stress-testing the assumptions behind them, discovering fatal flaws only after months of investment. This Skill acts as an adversarial reviewer that attacks each option while it is still cheap to kill, exposing the premise that invalidates it, the hidden cost nobody budgeted, and the point of no return. ## Core Features & Use Cases - Premortem Headlines: Generates 2-4 distinct failure headlines with different root causes, then asks the user which one scares them most to set severity ordering. - Per-Option Attack: For every option in options.md (including "do not build"), identifies the killing premise, a cheap test for it, the hidden cost (anchored to concrete legacy files or specs), and the point of no return. - Cross-Cutting Risk Register: Checks six transversal risk categories such as single-person dependency, regulatory obligations, third-party integrations, and data migrations, recording only those that genuinely apply. - Use Case: After running /reversa-explorer to map solution paths for a legacy modernization, invoke this Skill to produce risks.md with a premortem and per-option attack before the Arbiter scores the decision. ## Quick Start Run the reversa-challenger skill on my active ideation session to generate a premortem and adversarial risk analysis of all options in options.md.
