Use when anything fails — a test, build, deploy, script, or unexpected runtime behavior — BEFORE proposing a fix, and again whenever a fix attempt has just failed. Triggers: "fails", "broken", "error", "still not working", "neveikia", "lūžta", "klaida", "vis dar neveikia", "vėl ta pati klaida". Not for: code that hasn't been run yet, or mechanical lint/type complaints with obvious fixes.
