/**
 * Correction cue detection — detects when user signals frustration/correction.
 *
 * Phase: PRI-75 Prompt Injection SDK Migration Phase 1
 */
/**
 * Detects if text contains a correction/cue phrase.
 *
 * Uses substring matching — may produce false positives for short cues
 * like 'again' (e.g., "once again" would match).
 *
 * Returns the matched cue string, or null if none detected.
 */
export declare function detectCorrectionCue(text: string): string | null;
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