/**
 * CodexSdkAdapter — Direct OpenAI SDK integration for Codex.
 *
 * Uses the OpenAI SDK directly instead of the Codex CLI for better performance
 * and more granular control over API interactions.
 */
import type { AgentCapabilities, ModelCapabilities, AgentConfigSchema, AuthState, AuthSetupGuidance, Session, RunOptions, AgentEvent, AgentConfig } from '@a5c-ai/comm-adapter';
import { BaseProgrammaticAdapter } from './programmatic-adapter-base.js';
export declare class CodexSdkAdapter extends BaseProgrammaticAdapter {
    readonly agent: string;
    readonly displayName = "Codex (SDK)";
    readonly minVersion = "0.1.0";
    constructor(agent?: string);
    readonly hostEnvSignals: readonly ["OPENAI_API_KEY"];
    readonly capabilities: AgentCapabilities;
    readonly models: ModelCapabilities[];
    readonly defaultModelId = "o4-mini";
    readonly configSchema: AgentConfigSchema;
    execute(options: RunOptions): AsyncIterableIterator<AgentEvent>;
    detectAuth(): Promise<AuthState>;
    getAuthGuidance(): AuthSetupGuidance;
    sessionDir(_cwd?: string): string;
    parseSessionFile(filePath: string): Promise<Session>;
    listSessionFiles(_cwd?: string): Promise<string[]>;
    readConfig(_cwd?: string): Promise<AgentConfig>;
    writeConfig(config: Partial<AgentConfig>, _cwd?: string): Promise<void>;
    /**
     * Create OpenAI client (mock implementation).
     * In real implementation, this would return an actual OpenAI client instance.
     */
    private extractCostFromUsage;
}