/**
 * Honeypot field (strategy doc step 7 — free labels).
 *
 * Injects a form field that is invisible and unreachable for a real human
 * (off-screen, aria-hidden, tabindex=-1, autocomplete off) but that naive
 * bots — which blindly fill every input they find — will populate. A filled
 * honeypot is a near-certain bot signal, reported to /api/predict as
 * `honeypot_triggered` and used server-side both as a decisive block and as a
 * free, high-confidence training label.
 *
 * This is deliberately NOT a substitute for behavioural detection — a
 * sophisticated bot ignores hidden fields — it's a cheap high-precision layer
 * that catches the dumb majority for free. Precision over recall by design.
 */
export declare function injectHoneypot(form: HTMLFormElement): void;
/** True if any injected honeypot field has been filled (bot signal). */
export declare function isHoneypotTriggered(): boolean;
/** Test/teardown helper. */
export declare function resetHoneypot(): void;
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