/**
 * rill uninstall: Remove an extension mount and uninstall from .rill/npm/.
 *
 * Constraints (FR-EXT-5, UXI-EXT-5):
 * - assertBootstrapped pre-check before any config or npm operation (EC-13)
 * - Mount existence pre-check before any config edit (EC-14)
 * - Config written first (mount removed), then npm uninstall, then loadProject validation
 * - On validation failure (EC-16): do NOT roll back — mount removal is the desired terminal state
 * - Project-root package.json MUST NOT be modified (NFR-EXT-6)
 */
/**
 * Uninstall an extension from the current project.
 *
 * Implements UXI-EXT-5 order of operations per spec FR-EXT-5.
 *
 * EC-16 compliance: config is written without rollback wiring. If loadProject
 * validation fails after config write, we do NOT restore the original config.
 * The mount removal is the desired terminal state even on validation failure.
 */
export declare function run(argv: string[]): Promise<number>;