export declare class BoundaryViolationError extends Error {
    constructor(filepath: string, foundationRoot: string);
}
/**
 * Assert that a filepath is within the Foundation root directory.
 * Resolves both paths to absolute form before comparing.
 * Throws BoundaryViolationError if the path escapes the Foundation.
 */
export declare function assertWithinFoundation(filepath: string): Promise<void>;
/**
 * Assert that a filepath is within a known root directory.
 * Resolves symlinks (macOS: /var → /private/var) to avoid false violations.
 */
export declare function assertWithinRoot(filepath: string, foundationRoot: string): Promise<void>;
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