What problem does it solve? Confident answers are not always correct ones, and long coding sessions quietly turn assumptions into accepted facts. This Skill catches flawed architectural decisions, unsafe claims, and hidden edge cases while course-correction is still cheap, before they become production bugs. ## Core Features & Use Cases - Adversarial Fresh-Context Review: Spawns an isolated reviewer prompted to disprove, not approve, your artifact against its contract. - Bounded Doubt Cycle: A five-step process (CLAIM, EXTRACT, DOUBT, RECONCILE, STOP) capped at three cycles to prevent endless second-guessing. - Cross-Model Escalation: Optionally routes the artifact to an external CLI model (Gemini CLI, Codex CLI) in a read-only sandbox to catch single-model blind spots. - Use Case: Before committing a new caching layer you believe is thread-safe, extract the diff and its contract, have a fresh-context reviewer attack it for race conditions and unstated assumptions, then reconcile the findings before merging. ## Quick Start Ask the agent to apply doubt-driven development to review the thread-safety of the new caching layer before committing it.