/**
 * Browser-safe helpers for Canon execution modes. Separated from
 * `execution-environment.ts` (which pulls in Node-only modules) so both
 * Node hosts and browser/Expo clients can import these primitives.
 */
export type ExecutionEnvironmentMode = 'worktree' | 'locked';
export declare const EXECUTION_ENVIRONMENT_MODES: readonly ExecutionEnvironmentMode[];
export declare function isExecutionEnvironmentMode(value: unknown): value is ExecutionEnvironmentMode;