/**
 * Bare-invocation detection (interactive-cli-menu/AC-3).
 *
 * The zero-argument case is dispatched by an argv guard evaluated *before*
 * `program.parseAsync()`, never by a root `.action()` handler. A root action
 * changes commander's unknown-command diagnostic from
 * `error: unknown command 'x'` to `error: too many arguments. Expected 0
 * arguments but got 1: x.`, which would break the untouched-CLI contract
 * (interactive-cli-menu/AC-8).
 *
 * @module
 */
/**
 * Whether this is a bare `aidlc` invocation — no arguments, no flags.
 *
 * `argv` is a full Node argv: `[execPath, scriptPath, ...args]`, so "no
 * arguments" is length 2 exactly. Anything longer belongs to commander.
 */
export declare function isBareInvocation(argv: readonly string[]): boolean;
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