import { type Exec } from '../exec.js';
import type { AcpAgentResolution } from './acp-agent.js';
export declare const VERIFIED_CODEX_ACP_VERSIONS: Set<string>;
export declare function executableOnPath(command: string, env: NodeJS.ProcessEnv, cwd?: string): string;
/** Match the npm Codex wrapper's platform-package/vendor selection. */
export declare function codexExecutable(entry: string): string;
export interface CodexRuntime {
    source: 'CODEX_PATH' | 'bundled';
    entry: string;
    executable: string;
    version: string;
}
export declare function probeCodexRuntime(adapter: AcpAgentResolution, env: NodeJS.ProcessEnv, exec?: Exec, cwd?: string): Promise<CodexRuntime>;
export declare function codexVersionAtLeast(version: string, minimum: string): boolean;