/** MCP tool annotation helpers (agent-readiness / scorecard). */
export declare const readOnlyAnnotation: () => {
    readonly readOnlyHint: true;
    readonly destructiveHint: false;
    readonly idempotentHint: true;
    readonly openWorldHint: false;
};
export declare const readOnlyOpenWorldAnnotation: () => {
    readonly readOnlyHint: true;
    readonly destructiveHint: false;
    readonly idempotentHint: true;
    readonly openWorldHint: true;
};
export declare const mutationAnnotation: (opts?: {
    destructive?: boolean;
}) => {
    readonly readOnlyHint: false;
    readonly destructiveHint: boolean;
    readonly idempotentHint: false;
    readonly openWorldHint: false;
};
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