export interface ResolvedCommand {
    /** The binary to pass to spawn() — either the CLI name or "npx". */
    command: string;
    /** Args to prepend before the adapter's own args — empty for direct, ["--yes", "<pkg>"] for npx. */
    prefixArgs: string[];
}
/**
 * Check if a CLI command is available on PATH.
 * Returns true if `<cmd> --version` exits with code 0, false otherwise.
 */
export declare function isCommandAvailable(cmd: string): Promise<boolean>;
/**
 * Resolve how to invoke a CLI adapter.
 *
 * 1. Try the bare command (fast path, zero overhead).
 * 2. If not found, fall back to npx with the adapter's npm package.
 * 3. If npx is also not available, throw with install instructions.
 */
export declare function resolveCommand(adapterName: string, cliCommand: string): Promise<ResolvedCommand>;
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