/**
 * Evolution Store — evolution task primitives for SDK use.
 *
 * Extracts listEvolutionTasks and getEvolutionTask from TrajectoryDatabase
 * as pure functions that can be used without openclaw-plugin dependency.
 *
 * Reads the canonical workspace trajectory database
 * (`{workspaceDir}/.state/trajectory.db`) written by openclaw-plugin
 * TrajectoryDatabase — see trajectory-db.ts for the shared path contract.
 *
 * @example
 * import { listEvolutionTasks, getEvolutionTask } from '@principles/core/evolution-store';
 */
export { TrajectoryDbUnavailableError } from './trajectory-store.js';
import type { TaskKind, TaskPriority } from './trajectory-types.js';
export type { TaskKind, TaskPriority };
export interface EvolutionTaskRecord {
    id: number;
    taskId: string;
    traceId: string;
    source: string;
    reason: string | null;
    score: number;
    status: string;
    enqueuedAt: string | null;
    startedAt: string | null;
    completedAt: string | null;
    resolution: string | null;
    createdAt: string;
    updatedAt: string;
    taskKind: TaskKind | null;
    priority: TaskPriority | null;
    retryCount: number | null;
    maxRetries: number | null;
    lastError: string | null;
    resultRef: string | null;
}
export interface EvolutionTaskFilters {
    status?: string;
    dateFrom?: string;
    dateTo?: string;
    limit?: number;
    offset?: number;
}
/**
 * List evolution tasks with optional filtering.
 *
 * @param workspaceDir - The workspace directory (DB path: {workspaceDir}/.state/trajectory.db)
 * @param filters - Optional filters (status, dateFrom, dateTo, limit, offset)
 * @returns Array of EvolutionTaskRecord; empty array means the database
 *          exists and has no matching rows, OR the evolution tables are
 *          absent (fresh workspace created after PRI-770)
 * @throws TrajectoryDbUnavailableError if the database does not exist or
 *         cannot be opened — never silently treated as "no tasks"
 */
export declare function listEvolutionTasks(workspaceDir: string, filters?: EvolutionTaskFilters): EvolutionTaskRecord[];
/**
 * Get a single evolution task by numeric id or string taskId.
 *
 * @param workspaceDir - The workspace directory (DB path: {workspaceDir}/.state/trajectory.db)
 * @param idOrTaskId - Numeric id or string taskId
 * @returns EvolutionTaskRecord, or null when the database exists and the task
 *          is not found, or when the evolution tables are absent (fresh
 *          workspace created after PRI-770)
 * @throws TrajectoryDbUnavailableError if the database does not exist or
 *         cannot be opened — never silently treated as "not found"
 */
export declare function getEvolutionTask(workspaceDir: string, idOrTaskId: string | number): EvolutionTaskRecord | null;
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