export interface ContentAnnotations {
    audience?: ("user" | "assistant")[];
    priority?: number;
    lastModified?: string;
}
export interface TextContent {
    type: "text";
    text: string;
    annotations?: ContentAnnotations;
    _meta?: Record<string, unknown>;
}
export interface ImageContent {
    type: "image";
    data: string;
    mimeType: string;
    annotations?: ContentAnnotations;
    _meta?: Record<string, unknown>;
}
export interface AudioContent {
    type: "audio";
    data: string;
    mimeType: string;
    annotations?: ContentAnnotations;
    _meta?: Record<string, unknown>;
}
export interface ResourceLinkContent {
    type: "resource_link";
    uri: string;
    name: string;
    title?: string;
    description?: string;
    mimeType?: string;
    size?: number;
    annotations?: ContentAnnotations;
    _meta?: Record<string, unknown>;
}
export interface TextResourceContents {
    uri: string;
    mimeType?: string;
    text: string;
    _meta?: Record<string, unknown>;
}
export interface BlobResourceContents {
    uri: string;
    mimeType?: string;
    blob: string;
    _meta?: Record<string, unknown>;
}
export interface EmbeddedResourceContent {
    type: "resource";
    resource: TextResourceContents | BlobResourceContents;
    annotations?: ContentAnnotations;
    _meta?: Record<string, unknown>;
}
export type ContentBlock = TextContent | ImageContent | AudioContent | ResourceLinkContent | EmbeddedResourceContent;
export type JsonValue = string | number | boolean | null | JsonValue[] | {
    [key: string]: JsonValue;
};
export interface CallToolResult {
    content: ContentBlock[];
    structuredContent?: JsonValue;
    isError?: boolean;
    _meta?: Record<string, unknown>;
}
/**
 * Tool result content in the shape LLM APIs accept: text and base64 images. Matches the
 * `TextContent` and `ImageContent` types of `@earendil-works/pi-ai`.
 */
export type LlmContent = {
    type: "text";
    text: string;
} | {
    type: "image";
    data: string;
    mimeType: string;
};
/**
 * Convert a tool result to text and image content for a model. Text and images pass through,
 * embedded text resources become text, embedded image resources become images, and other blocks
 * (audio, resource links, binary resources) become a short text placeholder. A result without
 * content blocks but with `structuredContent` becomes its JSON, since servers should, but do not
 * always, mirror structured results as text.
 */
export declare function toLlmContent(result: Pick<CallToolResult, "content" | "structuredContent">): LlmContent[];
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