/**
 * polishGoal — Pure utility functions for generating a polished, imperative
 * single-sentence Goal line in the spec completion summary.
 *
 * No AI calls, no side-effects. Deterministic string transformations only.
 */
/**
 * selectGoalSource — Choose the best source for the goal line from a
 * structured set of candidates, applying the spec's 3-tier fallback chain:
 *   1. AI recap (if non-empty/non-whitespace)
 *   2. Key decisions (if non-empty/non-whitespace after normalisation)
 *   3. User request (fallback)
 *
 * For `keyDecisions`, bullet prefixes are stripped and fragments joined with `; `.
 */
export declare function selectGoalSource(opts: {
    aiRecap: string;
    keyDecisions: string | string[];
    userRequest: string;
}): {
    source: 'ai' | 'decisions' | 'user';
    text: string;
};
/**
 * polishGoalSentence — Transform any goal source text into a polished,
 * imperative, single-sentence string ending with a period.
 *
 * Steps applied (all deterministic):
 *  1. Whitespace normalization
 *  2. Strip trailing ellipses
 *  3. Remove leading framing phrases ("I want to …", "We will …", etc.)
 *  4. Single-sentence enforcement (take first sentence)
 *  5. Imperative verb enforcement (prepend "Implement " if needed)
 *  6. Capitalise first letter
 *  7. Ensure exactly one trailing period
 */
export declare function polishGoalSentence(text: string): string;