What problem does it solve? Diff-scoped review bots miss whole-system, failure-mode, and consistency defects, and single-pass self-reviews produce confident but wrong findings. This Skill generates review findings from scratch before a PR is opened or merged, running independent adversarial lenses and verifying each finding by refutation so only real defects surface. ## Core Features & Use Cases - Multi-lens adversarial review: Runs specialized lenses (concurrency, failure modes, data consistency, security, spec consistency, normative language) as independent agents so perspectives do not average together. - Refutation-based verification: Every finding is challenged from multiple angles (reproduce, regress, claim-true) and must survive a majority vote before being reported, ranked by severity. - Working-tree protection: Snapshots the git tree, supports throwaway worktree isolation for committed changes, and verifies the tree is unchanged after the review. - Use Case: Before merging a payments refactor, run the Skill on the branch diff; it assembles callers, invariants, and the full changed files, fans out lens agents in isolated worktrees, and returns blocker/should/nit findings with concrete failure scenarios and fixes. ## Quick Start Ask the agent to adversarially review the current uncommitted changes or a specific PR number and report the verified findings ranked by severity.