/**
 * WorkspaceDir Validation Utilities
 *
 * This module only validates candidate workspace directories. Runtime hook
 * resolution policy lives at the I/O boundary in utils/workspace-resolver.ts.
 */
export interface WorkspaceResolutionContext {
    workspaceDir?: string;
    agentId?: string;
}
export declare function validateWorkspaceDir(dir: string | undefined): string | null;