Bugbash is a Claude Code plugin for hands-on bug hunting: you exercise the running app (API, UI, CLI) first, then use code only to narrow what you already observed. It’s built around a clear charter, find and reproduce issues with evidence, not to debug or ship fixes unless you ask. It includes quick / standard / deep intensity, evidence bars by severity, a flaky vs confirmed split, optional JSON for filing tickets, and subagents tuned for API vs UI testing.