/** One scripted assistant turn: the final text answer codex should emit. */
export interface CodexTurn {
    /** Final text answer for this turn. */
    readonly text: string;
}
/**
 * One `/v1/responses` request the mock received, parsed for assertions: the
 * user's prompt (last `input` item with `role:"user"`), the requested model,
 * and the declared function-tool names.
 */
export interface CodexRequest {
    readonly prompt: string;
    readonly model: string;
    readonly toolNames: readonly string[];
}
export interface CodexMockHandle {
    readonly url: string;
    readonly port: number;
    /** Every `/v1/responses` request the mock received, in order. */
    readonly requests: readonly CodexRequest[];
    close(): Promise<void>;
}
/**
 * Render the PROVEN OpenAI-Responses SSE event sequence for a single assistant
 * text message — `response.created` through `response.completed`. This exact
 * sequence is confirmed to make real `codex` complete a turn. Pure and exported
 * so the renderer is testable without the HTTP server.
 */
export declare function renderResponsesSSE(text: string, opts?: {
    model?: string;
}): string;
/**
 * Parse a Responses request body — the user's prompt (the LAST `input` item
 * with `role:"user"`, joining its `content[].text`), the requested `model`, and
 * the declared function-tool names. Tolerates malformed JSON (returns an empty
 * prompt). Pure and exported so request capture is testable without the server.
 */
export declare function parseResponsesRequest(body: string): {
    prompt: string;
    model: string;
    toolNames: string[];
};
/**
 * Start the scripted Codex Responses mock on a free port. Each
 * `POST /v1/responses` consumes the next scripted turn; one past the end of the
 * script is a 400, never a copy of the last turn (#340); HEAD and any other path
 * get `{}`. Resolves to a handle
 * with the base `url`, the `port`, the recorded `requests`, and `close()`.
 */
export declare function startCodexMock(script: readonly CodexTurn[], opts?: {
    onRequest?: (req: CodexRequest) => void;
}): Promise<CodexMockHandle>;
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