import type { CliId } from '../adapters/cli/types.js';
export interface CliAvailabilityInput {
    cliId: CliId;
    cliPathOverride?: string;
    wrapperCli?: string;
}
export interface CliAvailability {
    available: boolean;
    /** Remote/API-backed agents intentionally have no local executable. */
    localExecutableRequired: boolean;
    /** Command the actual first local process (or nested runner dependency) needs. */
    command?: string;
    resolvedPath?: string;
    reason?: string;
}
export declare function hasAgentLaunchConfigChanged(before: CliAvailabilityInput, after: CliAvailabilityInput): boolean;
/**
 * Check launch availability with the same shell-aware resolution used by the
 * worker.  The fast PATH check avoids shell startup in the common case; the
 * fallback still finds nvm/fnm/rc-only installs and the macOS ChatGPT/Codex
 * desktop app binary.
 */
export declare function checkCliAvailability(input: CliAvailabilityInput, opts?: {
    shellFallback?: boolean;
}): CliAvailability;
export declare function cliUnavailableMessage(input: CliAvailabilityInput, displayName?: string): string | undefined;
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