hunt

Finds the actual root cause of a failing test, error, crash, regression, a page rendered blank or wrong, or a request that throws, before applying fixes, proven against a known-good reference (prior version, release artifact, or "good" screenshot). Use when users report errors, crashes, broken behavior, blank rendering, failing tests, or a used-to-work state that now fails. Not for code review (route to check) or a first-impression visual complaint with no working baseline (route to ui).