export declare const EVENT_V3_LIVE_RELATIVE_ROOT: ".harnery/live/v3";
export interface LiveDisplayInputV3 {
    generation_id: string;
    event_id: string;
    executable?: string;
    intent_display?: string;
    target_labels?: string[];
    ttl_ms?: number;
}
export interface LiveDisplayRowV3 {
    format: "harnery-event-v3-live-display";
    format_version: 1;
    row_id: `live_${string}`;
    generation_id: string;
    event_id: string;
    written_at: string;
    expires_at: string;
    executable?: string;
    intent_display?: string;
    target_labels?: string[];
}
export interface LiveDisplayJanitorResultV3 {
    scanned: number;
    removed: number;
    retained: number;
}
/**
 * Append one best-effort operator-display row. The narrow input shape has no
 * fields for prompts, argv, tool input, output, exception bodies, or messages.
 */
export declare function writeLiveDisplayV3(coordRoot: string, input: LiveDisplayInputV3, now?: () => Date): LiveDisplayRowV3;
/**
 * Best-effort overlay write for producers. Never throws: the live feed is
 * presentation-only and must not fail a durable ledger append.
 */
export declare function tryWriteLiveDisplayV3(coordRoot: string, input: LiveDisplayInputV3, now?: () => Date): LiveDisplayRowV3 | undefined;
/**
 * Return every unexpired live-display row across generations.
 *
 * A generation file whose last write is older than the hard TTL cannot hold a
 * live row, so it is skipped on the stat alone. Without that guard a directory
 * that has not been swept turns every read into a parse of days of residue.
 */
export declare function listLiveDisplayV3(coordRoot: string, now?: () => Date): LiveDisplayRowV3[];
/** Return only unexpired, structurally valid rows. Expiry is enforced before cleanup. */
export declare function readLiveDisplayV3(coordRoot: string, generationId: string, now?: () => Date): LiveDisplayRowV3[];
/** Remove fully expired generation files; malformed residue is bounded by the hard maximum. */
export declare function janitorLiveDisplayV3(coordRoot: string, now?: () => Date): LiveDisplayJanitorResultV3;
/** Conservative allowlist scrubber: uncertainty omits the display instead of partially rendering it. */
export declare function safeIntentDisplayV3(value: string | undefined): string | undefined;
//# sourceMappingURL=live-feed.d.ts.map