/**
 * Drop-in replacement for the Anthropic Node SDK.
 * Swap your import to get permit-first governance transparently.
 *
 * BEFORE: import Anthropic from "@anthropic-ai/sdk";
 * AFTER:  import { Anthropic } from "keel-sdk/providers/anthropic";
 *
 * The wrapper does NOT depend on the `@anthropic-ai/sdk` npm package.
 * It talks to Keel's proxy endpoint, which handles the provider call.
 */
export interface ContentBlockText {
    type: "text";
    text: string;
}
export interface ContentBlockToolUse {
    type: "tool_use";
    id: string;
    name: string;
    input: unknown;
}
export type ContentBlock = ContentBlockText | ContentBlockToolUse;
export interface MessageParam {
    role: "user" | "assistant";
    content: string | ContentBlock[];
}
export interface MessageCreateParams {
    model: string;
    messages: MessageParam[];
    max_tokens: number;
    system?: string;
    temperature?: number;
    top_p?: number;
    top_k?: number;
    stop_sequences?: string[];
    stream?: boolean;
    tools?: unknown[];
    tool_choice?: unknown;
    metadata?: {
        user_id?: string;
    };
    [key: string]: unknown;
}
export interface MessageUsage {
    input_tokens: number;
    output_tokens: number;
}
export interface Message {
    id: string;
    type: "message";
    role: "assistant";
    content: ContentBlock[];
    model: string;
    stop_reason: string | null;
    stop_sequence: string | null;
    usage: MessageUsage;
}
/** A single event in a streamed message. */
export interface MessageStreamEvent {
    type: string;
    index?: number;
    message?: Message;
    content_block?: ContentBlock;
    delta?: {
        type: string;
        text?: string;
        stop_reason?: string;
    };
    usage?: MessageUsage;
    [key: string]: unknown;
}
export interface AnthropicConfig {
    /** Ignored -- Keel manages provider keys. Accepted for API compatibility. */
    apiKey?: string;
    /** Keel API base URL. Defaults to KEEL_BASE_URL env var. */
    keelBaseUrl?: string;
    /** Keel API key. Defaults to KEEL_API_KEY env var. */
    keelApiKey?: string;
    /** Keel project ID. Defaults to KEEL_PROJECT_ID env var. */
    keelProjectId?: string;
    /** Subject for permit requests. */
    keelSubject?: {
        type: string;
        id: string;
    };
    /** Request timeout in milliseconds. */
    timeout?: number;
    /** Maximum retries on transient errors. */
    maxRetries?: number;
}
export declare class Anthropic {
    readonly messages: {
        create: (params: MessageCreateParams) => Promise<Message | AsyncIterable<MessageStreamEvent>>;
    };
    private readonly keel;
    private readonly projectId;
    private readonly subject;
    constructor(config?: AnthropicConfig);
    private _create;
    private _createSync;
    private _createStream;
}