/**
 * Next-task selection logic — coreTaskNext.
 * @task T10064
 * @epic T9834
 */
/**
 * Suggest next task to work on based on priority, phase, age, and deps.
 *
 * @param projectRoot - Absolute path to the CLEO project root directory
 * @param params - Optional scoring configuration
 * @param params.count - Number of suggestions to return (default: 1)
 * @param params.explain - When true, include scoring reasons in each suggestion
 * @returns Ranked suggestions with scores and the total number of eligible candidates
 *
 * @remarks
 * Scoring considers priority weight, current phase alignment, dependency readiness,
 * task age, and brain success/failure pattern matches. Results are sorted descending by score.
 *
 * @example
 * ```typescript
 * const { suggestions } = await coreTaskNext('/project', { count: 3, explain: true });
 * console.log(suggestions[0].id, suggestions[0].score);
 * ```
 *
 * @task T4790
 */
export declare function coreTaskNext(projectRoot: string, params?: {
    count?: number;
    explain?: boolean;
}): Promise<{
    suggestions: Array<{
        id: string;
        title: string;
        priority: string;
        phase: string | null;
        score: number;
        reasons?: string[];
    }>;
    totalCandidates: number;
}>;
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