{"id":"valid-word-single-pass-validation","text":"`is_valid` validates all character constraints (digits, hyphens, punctuation) in a single left-to-right pass with early returns — no regex or multi-pass scanning","truth_value":"IN","source":"entries/2026/06/06/number-of-valid-words-in-a-sentence-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"valid-word-single-pass-validation","truth_value":"IN","reason":"premise"}]}}