export declare const taskFormatMigrationHint = "Task metadata is not enabled for this store. Upgrade every CLI, MCP, Hook, sync and app writer first; an owner can then run phren task format enable --all-writers-compatible. Existing writers must be replaced through the coordinated adoption workflow.";
/** An explicit store-owner acknowledgement, not inferred from one serving Hook.
 * It cannot fence an old binary that ignores this file: coordinated adoption of
 * every writer remains a prerequisite, and is stated at the activation boundary. */
export declare function taskFormatStatus(base: string): {
    enabled: boolean;
    version: 1;
    acknowledgedAt?: string;
};
/** Wire status describes admission, never proof that old filesystem/Git writers
 * have been upgraded. Such writers do not consult our activation file. */
export declare function taskWriterSafety(base: string): {
    version: 1;
    metadataVersion: 1;
    activation: "disabled" | "owner-acknowledged";
    requiresCoordinatedAdoption: true;
    legacyWritersFenced: false;
    acknowledgedAt?: string | undefined;
};
export declare function enableTaskFormat(base: string, allWritersCompatible: boolean): void;