import type { ImageBudget } from "../../attachments/image-content.js";
export type AttachmentKind = "text" | "image" | "document" | "binary" | "directory" | "missing";
export interface Attachment {
    raw: string;
    path: string;
    kind: AttachmentKind;
    content?: string;
    truncated?: boolean;
    note?: string;
    sendable?: boolean;
}
export interface MentionExpansion {
    text: string;
    attachments: Attachment[];
    contextBlock: string;
}
export interface ExpandMentionsOptions {
    visionCapable?: boolean | undefined;
    budget?: ImageBudget | undefined;
}
export declare function normalizeDroppedPath(token: string): string;
export declare function classifyPath(absPath: string): AttachmentKind;
export declare function extractMentionTokens(line: string): string[];
export declare function tokenToPath(token: string, baseDir: string): string;
export declare function expandMentions(line: string, baseDir?: string, vision?: boolean | ExpandMentionsOptions): MentionExpansion;
export declare function stabilizeImagePaths(paths: string[], baseDir?: string): string[];