export interface OpenCodeCheckResult {
    available: boolean;
    version?: string;
}
/**
 * Check if the opencode binary is available in PATH and get its version.
 *
 * Runs `opencode --version` which outputs something like "opencode v1.2.0".
 * If not installed or the command fails, returns { available: false }.
 */
export declare function checkOpenCodeInstalled(): Promise<OpenCodeCheckResult>;
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