import type { EventEnvelope } from "@hasna/events";
/** Deep field extraction over Hasna event envelopes and todos task records. */
export declare function eventData(event: EventEnvelope): Record<string, unknown>;
export declare function eventMetadata(event: EventEnvelope): Record<string, unknown>;
export declare function stringField(value: unknown): string | undefined;
export declare function slugSegment(value: string, fallback?: string): string;
export declare function stableSuffix(value: string): string;
export declare function stableHash(parts: unknown[]): string;
export declare function taskEventField(data: Record<string, unknown>, keys: string[]): string | undefined;
export declare function objectField(value: unknown): Record<string, unknown> | undefined;
export declare function taskEventRecords(data: Record<string, unknown>, metadata: Record<string, unknown>): Record<string, unknown>[];
export declare function booleanLike(value: unknown): boolean;
export declare function hasTruthyField(records: Record<string, unknown>[], keys: string[]): boolean;
export declare function firstTruthyField(records: Record<string, unknown>[], keys: string[]): string | undefined;
export declare function automationRecords(data: Record<string, unknown>, metadata: Record<string, unknown>): Record<string, unknown>[];
export declare function tagsFromValue(value: unknown): string[];
export declare function taskEventTags(records: Record<string, unknown>[]): string[];
/**
 * First route-disallowed tag on a task, if any. Exposed so drains can exclude
 * tasks that can never route (no-auto/blocked/manual/…) from the bounded
 * candidate window *before* slicing, instead of letting them occupy scan slots
 * every tick only to be rejected by eligibility — the "skip re-burns the window
 * forever" half of the merge-lane decay.
 */
export declare function taskRouteDisallowedTag(tags: string[]): string | undefined;
export declare function taskRouteEligibility(data: Record<string, unknown>, metadata: Record<string, unknown>): {
    eligible: boolean;
    reason?: string;
    tags: string[];
};
export declare function canonicalRouteField(value: string): string;
export declare function recordFieldValues(record: Record<string, unknown>, field: string): string[];
export declare function routeFieldValues(records: Record<string, unknown>[], field: string): string[];
export declare function firstRouteField(records: Record<string, unknown>[], fields: string[]): string | undefined;
export declare function routeFieldList(records: Record<string, unknown>[], fields: string[]): string[] | undefined;