/**
 * Stable behavior contract used for a complete x.y.z Codex version that
 * AKK has not regression-tested yet. Exact profiles remain useful as evidence
 * of verification, but are not a runtime allowlist.
 */
export declare const CODEX_GENERIC_RUNTIME_BEHAVIOR_PROFILE = "codex-tui-generic-v1";
export interface CodexRuntimeCompatibilityProfile {
    readonly behaviorProfile: string;
    readonly versionCompatibility: "verified" | "unverified";
    readonly compatibilityWarning?: string;
}
export declare function codexLifecycleBehaviorProfile(agentVersion: string | undefined): string | undefined;
/** True only for a complete x.y.z version shared by runtime and artifacts. */
export declare function isValidCodexAgentVersion(agentVersion: string | undefined): agentVersion is string;
/**
 * Select the runtime behavior profile without turning the verified-version
 * registry into a feature gate.
 */
export declare function codexRuntimeCompatibilityProfile(agentVersion: string | undefined): CodexRuntimeCompatibilityProfile | undefined;
export declare function codexRuntimeLifecycleBehaviorProfile(agentVersion: string | undefined): string | undefined;
export declare function supportedCodexLifecycleVersions(): readonly string[];