import { DiscoveredPromptFile, PromptSource } from '../../types/prompt-source';
/** Configuration options for GitHubPromptSource */
export interface GitHubPromptSourceOptions {
    /** Git ref (branch, tag, or commit SHA). Defaults to 'main'. */
    ref?: string;
    /** GitHub personal access token for private repos or to avoid rate limiting. */
    token?: string;
    /** Explicit prompt directories to scan (relative to repo root). Overrides default 'prompts/'. */
    promptDirs?: string[];
}
/**
 * Parse a "owner/repo" string into its parts.
 */
export declare function parseGitHubSource(source: string): {
    owner: string;
    repo: string;
    ref?: string;
};
/**
 * Discovers .prompt files from a GitHub repository using the Git Trees API.
 *
 * Fetches the repository tree and filters for files matching `prompts/*.prompt`,
 * then fetches each file's content from raw.githubusercontent.com.
 */
export declare class GitHubPromptSource implements PromptSource {
    private owner;
    private repo;
    private ref;
    private token?;
    private promptDirs?;
    constructor(ownerRepo: string, options?: GitHubPromptSourceOptions);
    getPrompts(): Promise<DiscoveredPromptFile[]>;
    private fetchTree;
    private filterPromptFiles;
    private fetchFileContent;
    private getHeaders;
}
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