/**
 * Persistent tool permissions — saves "always approved" tools across sessions.
 * Stored in ~/.owlcoda/permissions.json.
 */
/** Load persistent permissions from disk. */
export declare function loadPermissions(): Set<string>;
/** Save persistent permissions to disk. */
export declare function savePermissions(approved: Set<string>): void;
/** Add a tool to persistent permissions. */
export declare function addGlobalPermission(toolName: string): void;
/** Remove a tool from persistent permissions. */
export declare function removeGlobalPermission(toolName: string): boolean;
/** Clear all persistent permissions. */
export declare function clearGlobalPermissions(): void;
