Function classifyQuestion

scripts/one-way-doors.ts:112–147

(input: ClassifyInput)

 * one-way nature is found. Errs conservatively otherwise.
 */
export function classifyQuestion(input: ClassifyInput): ClassifyResult {
  // 1. Registry lookup (primary)
  if (input.question_id) {
    const registered = getQuestion(input.question_id);
    if (registered) {
      return {
        oneWay: registered.door_type === 'one-way',
        reason: 'registry',
      };
    }
  }

  // 2. Skill-category fallback (certain combos are always one-way)
  if (input.skill && input.category) {
    const key = `${input.skill}:${input.category}`;
    if (ONE_WAY_SKILL_CATEGORIES.has(key)) {
      return { oneWay: true, reason: 'skill-category' };
    }
  }

  // 3. Keyword pattern match (catch destructive questions without registry entry)
  if (input.summary) {
    for (const pattern of DESTRUCTIVE_PATTERNS) {
      if (pattern.test(input.summary)) {
        return {
          oneWay: true,
          reason: 'keyword',
          matched: pattern.toString(),
        };
      }
    }
  }

  // 4. No evidence either way — treat as two-way (can be preference-suppressed).
  return { oneWay: false, reason: 'default-two-way' };
}

/**
 * Convenience wrapper for the sensitivity check binary.