/**
 * Custom error type for tool-level failures (returned to client as `isError: true`).
 */
export declare class ToolError extends Error {
    readonly name: string;
    readonly code: string;
    constructor(code: string, message: string);
}
/**
 * Custom error for security-related violations (path traversal, sandbox escapes).
 */
export declare class SecurityError extends ToolError {
    readonly name: string;
    constructor(message: string);
}
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