import type { Api, Model } from "../../types";
/** Reasoning replay scope for the Codex Responses API (`reasoning.context`). */
export type CodexReasoningContext = "auto" | "current_turn" | "all_turns";
export interface ReasoningConfig {
    effort: "none" | "minimal" | "low" | "medium" | "high" | "xhigh";
    summary?: "auto" | "concise" | "detailed";
    context?: CodexReasoningContext;
}
export interface CodexRequestOptions {
    reasoningEffort?: ReasoningConfig["effort"];
    reasoningSummary?: ReasoningConfig["summary"] | null;
    /** Explicit `reasoning.context` override; defaults to `all_turns` when unset. The `all_turns` value is gated to gpt-5.4+ Codex models — older ids reject it, so it is suppressed and `context` omitted. */
    reasoningContext?: CodexReasoningContext;
    textVerbosity?: "low" | "medium" | "high";
    include?: string[];
    /** Responses Lite transport contract: strips image detail and disables parallel tool calling, mirroring codex-rs. */
    responsesLite?: boolean;
}
export interface InputItem {
    id?: string | null;
    type?: string | null;
    role?: string;
    content?: unknown;
    call_id?: string | null;
    name?: string;
    output?: unknown;
    arguments?: unknown;
}
export interface RequestBody {
    model: string;
    store?: boolean;
    stream?: boolean;
    instructions?: string;
    input?: InputItem[];
    tools?: unknown;
    tool_choice?: unknown;
    reasoning?: Partial<ReasoningConfig>;
    text?: {
        verbosity?: "low" | "medium" | "high";
    };
    include?: string[];
    prompt_cache_key?: string;
    prompt_cache_retention?: "in_memory" | "24h";
    client_metadata?: Record<string, string>;
    max_output_tokens?: number;
    max_completion_tokens?: number;
    service_tier?: "auto" | "default" | "flex" | "scale" | "priority" | null;
    [key: string]: unknown;
}
/** Returns whether a Codex request can use the text-only Responses Lite transport. */
export declare function shouldUseCodexResponsesLite(body: RequestBody, requested: boolean | undefined): boolean;
export declare function transformRequestBody(body: RequestBody, model: Model<Api>, options?: CodexRequestOptions, prompt?: {
    developerMessages: string[];
}): Promise<RequestBody>;