/**
 * System-prompt contributor that surfaces eternal-autonomy state to the
 * model on every turn.
 *
 * Why this exists: when the engine drives a long-running loop, the
 * per-iteration directive carries the rules. But the directive is a USER
 * message — it scrolls out of working memory after a few compactions and
 * the model forgets it's in autonomy mode (forgets `[GOAL_COMPLETE]`,
 * forgets the todo-state protocol, forgets the no-confirmation rule).
 * Injecting the same anchor as a CACHED system-prompt block solves that
 * — the rules sit next to the identity layer and survive compactions.
 *
 * Block is tagged `ephemeral` so its content (journal tail, iteration
 * counter) changes each turn without invalidating the upstream prefix
 * cache.
 */
import type { SystemPromptContributor } from '../types/system-prompt-contributor.js';
export interface AutonomyPromptContributorOptions {
    /** Absolute path to the project's `goal.json`. */
    goalPath: string;
    /**
     * Gating function. The contributor consults this on every build and
     * returns an empty array when `false` — without this, the block would
     * leak into interactive runs that happen to have a goal on disk and
     * teach the model loop-control markers it shouldn't emit.
     *
     * Typical wiring: enable while `eternal` or `eternal-parallel` autonomy is active.
     */
    enabled: () => boolean;
    /** Number of journal entries to include in the recent-tail block. Default 5. */
    journalTailSize?: number | undefined;
}
/**
 * Build a contributor that renders the autonomy-state system block.
 * Returns `[]` when disabled, no goal exists, or the goal has been
 * completed/abandoned — all silent fast-paths.
 */
export declare function makeAutonomyPromptContributor(opts: AutonomyPromptContributorOptions): SystemPromptContributor;
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