import type { TaskEntity } from "./types.js";
export type KnownTaskTypeValidationError = {
    code: "invalid-task-type-requirements";
    message: string;
};
/**
 * Optional strictness for known task types.
 * Unknown/custom task types remain passthrough for compatibility.
 */
export declare function validateKnownTaskTypeRequirements(task: TaskEntity): KnownTaskTypeValidationError | null;
