/**
 * System prompt builder — ported from src-tauri/src/llm/prompt.rs
 *
 * Builds the LLM system prompt dynamically based on context:
 * - App type (email / chat / document / general)
 * - Custom vocabulary / dictionary terms
 * - Translation target language
 */
export type AppType = "email" | "chat" | "code" | "document" | "general";
/**
 * A vocabulary entry with an optional list of phonetic aliases.
 *
 * Use `soundsLike` to list the approximate spellings that the STT engine may
 * produce for this term. The LLM will replace any matching alias in the
 * transcript with the canonical `term`.
 *
 * @example
 * { term: 'Tauri',        soundsLike: ['towery', 'tori'] }
 */
export interface VocabularyEntry {
    /** The exact term as it must appear in the output */
    term: string;
    /**
     * Phonetic approximations or alternate spellings the STT engine may produce.
     * The LLM will treat any of these as a match and replace with `term`.
     */
    soundsLike?: string[];
}
export interface BuildPromptOptions {
    /** Context type — affects tone and formatting style. Default: 'general' */
    appType?: AppType;
    /**
     * Custom vocabulary terms the LLM must use with exact spelling.
     * Accepts plain strings or `VocabularyEntry` objects with optional
     * `soundsLike` aliases — phonetic approximations the STT may produce.
     *
     * @example
     * vocabulary: [
     *   { term: 'Tauri', soundsLike: ['towery'] },
     *   'KPI',
     * ]
     */
    vocabulary?: (string | VocabularyEntry)[];
    /** Whether to translate the output. Requires targetLang. */
    translateEnabled?: boolean;
    /** BCP-47 language code for translation target (e.g. 'en', 'zh', 'ja') */
    targetLang?: string;
}
/**
 * Build the LLM system prompt for voice-to-text polishing.
 *
 * @example
 * const prompt = buildSystemPrompt({
 *   appType: 'chat',
 *   vocabulary: ['Tauri'],
 *   translateEnabled: true,
 *   targetLang: 'en',
 * });
 */
export declare function buildSystemPrompt(options?: BuildPromptOptions): string;
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