import { CLIRuntimeBase } from "../cli-runtime-base.js";
import type { AgentEvent, AgentExecuteParams, McpServerConfig } from "../types.js";
/**
 * Codex CLI runtime — invokes `codex exec --json`
 * and maps the streaming NDJSON output to {@link AgentEvent} instances.
 *
 * The Codex CLI uses a two-level event model:
 * - Top-level events: thread.started, turn.started, item.started, item.updated,
 *   item.completed, turn.completed, turn.failed, error
 * - Item types: agent_message, command_execution, mcp_tool_call, file_change,
 *   reasoning, web_search, error, todo_list
 */
export declare class CodexCliRuntime extends CLIRuntimeBase {
    readonly mediaCapabilities: {
        readonly acceptsInbound: readonly ["image/"];
        readonly emitsOutbound: false;
    };
    private currentSessionId;
    private accumulatedText;
    private lastEmittedTextLength;
    private lastUsage;
    private currentToolId;
    private itemCounter;
    constructor();
    protected get supportsStdinPrompt(): boolean;
    protected get shouldSampleRss(): boolean;
    execute(params: AgentExecuteParams): AsyncIterable<AgentEvent>;
    protected buildArgs(params: AgentExecuteParams): string[];
    protected extractEvent(line: string): AgentEvent | null;
    protected buildEnv(_params: AgentExecuteParams): Record<string, string>;
    private handleThreadStarted;
    private handleItemStarted;
    private handleItemUpdated;
    private handleItemCompleted;
    private handleTurnCompleted;
    private handleTurnFailed;
    private handleError;
    private enrichDoneEvent;
    private extractToolId;
    private extractMessageText;
    private extractReasoningText;
    private resetState;
}
/**
 * Manages the `~/.codex/config.toml` lifecycle for MCP server configuration.
 *
 * The Codex CLI reads MCP config from `~/.codex/config.toml`. The config uses
 * TOML format with `[mcp_servers.<name>]` sections.
 *
 * Uses a merge-restore pattern:
 * - **Setup**: read existing config (if any), save a copy, append `mcp_servers`
 *   sections, write back.
 * - **Teardown** (always, via `finally`): restore original or delete created file.
 */
export declare class CodexMcpConfigManager {
    private readonly mcpServers;
    private readonly configDir;
    private readonly configPath;
    private originalContent;
    private createdFile;
    private createdDir;
    constructor(mcpServers: Record<string, McpServerConfig>, configDir?: string);
    setup(): Promise<void>;
    teardown(): Promise<void>;
}
/**
 * Serialize MCP server configs to TOML format for Codex config.
 *
 * Output format:
 * ```toml
 * [mcp_servers.server_name]
 * type = "stdio"
 * command = "node"
 * args = ["server.js"]
 *
 * [mcp_servers.server_name.env]
 * KEY = "VALUE"
 * ```
 */
export declare function serializeMcpServersToToml(mcpServers: Record<string, McpServerConfig>): string;