thunderdome

N-way concurrent tournament convergence skill. Dispatches N competing strategies via /subagent-service in parallel, scores results against a pluggable metric, diagnoses failures with persona reviewers, /dogpile-researches on combined failure, and iterates until convergence or exhaustion. Manifest-driven (YAML). Two strategies enter, one strategy leaves. Use when: self-improvement loop, tournament, convergence, compete strategies, concurrent training, parallel approaches, best-of-N, arena.