import { ExtractionTrigger, type ExtractionTriggerContext } from './types.js';
/**
 * Runs extraction after every agent invocation.
 *
 * The highest-fidelity option: nothing said in a turn is missed. Also the most expensive when an
 * {@link Extractor} is configured (a model call per turn) — for a server-side-extraction backend
 * with no extractor it is just a per-turn write.
 *
 * @example
 * ```typescript
 * extraction: { trigger: [new InvocationTrigger()] }
 * ```
 */
export declare class InvocationTrigger extends ExtractionTrigger {
    readonly name = "invocation";
    attach(context: ExtractionTriggerContext): void;
}
/** Options for {@link IntervalTrigger}. */
export interface IntervalTriggerOptions {
    /** Run extraction once every this many invocations. Must be a positive integer. */
    turns: number;
}
/**
 * Runs extraction every N agent invocations.
 *
 * A controllable middle ground: extraction (and any model call it entails) happens on a cadence
 * rather than every turn, while the high-water mark guarantees the messages from the skipped turns
 * are still processed when the trigger does fire.
 *
 * @example
 * ```typescript
 * extraction: { trigger: [new IntervalTrigger({ turns: 5 })] }
 * ```
 */
export declare class IntervalTrigger extends ExtractionTrigger {
    readonly name = "interval";
    private readonly _turns;
    constructor(options: IntervalTriggerOptions);
    attach(context: ExtractionTriggerContext): void;
}
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