import { RequestContext } from "../server.js";
/**
 * Wraps a tool handler with scope enforcement, invocation logging, and
 * token-efficient response formatting (compact/fields post-processing).
 *
 * CoSAI MCP-T2 (scope enforcement) + MCP-T12 (audit logging).
 */
export declare function withGuard<T extends Record<string, unknown>>(toolName: string, getContext: () => RequestContext, handler: (params: T) => Promise<{
    content: {
        type: "text";
        text: string;
    }[];
    isError?: boolean;
}>): (params: T) => Promise<{
    content: {
        type: "text";
        text: string;
    }[];
    isError?: boolean;
}>;
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