Reviews a diff with several independent read-only reviewer agents running at the same time, each looking through one lens (correctness, security, data, concurrency, compatibility, tests), then checks every claim against the code and merges the survivors into one prioritized report. Use when the user says "review swarm", "review this branch with parallel agents", "multi-agent code review", "get several reviewers on my diff", or wants a deeper pre-merge review than a single pass gives. It reports problems and does not change code.
