/**
 * DataAccessor re-export + factory functions.
 *
 * The DataAccessor interface is defined in @cleocode/contracts.
 * This module re-exports it and provides the concrete SQLite factory.
 *
 * @epic T4454
 * @task T9054
 */
export type { ArchiveFields, ArchiveFile, DataAccessor, QueryTasksResult, TaskAuditLogQuery, TaskAuditLogRow, TaskFieldUpdates, TaskQueryFilters, TransactionAccessor, } from '@cleocode/contracts';
/**
 * Assert that production database writes are forbidden in test mode.
 *
 * When `CLEO_TEST_MODE=1` is set, any write to a production `tasks.db` or
 * `brain.db` path (i.e. paths NOT under a temp dir or the env-var override)
 * throws `E_PROD_DB_WRITE_IN_TEST`. This prevents tests from accidentally
 * polluting the developer's live database.
 *
 * Escape hatch: set `CLEO_TEST_DB_OVERRIDE=1` to suppress the guard (audited
 * per ADR-051 pattern — written to `.cleo/audit/force-bypass.jsonl`).
 *
 * @param dbPath - Absolute resolved path to the SQLite file being opened.
 * @throws Error with code `E_PROD_DB_WRITE_IN_TEST` when the guard fires.
 *
 * @task T1906
 */
export declare function assertTestEnv(dbPath: string): void;
/**
 * Create a DataAccessor for the given working directory.
 * Always creates a SQLite accessor (ADR-006 canonical storage).
 *
 * ALL accessors returned are safety-enabled by default via SafetyDataAccessor wrapper.
 * Use CLEO_DISABLE_SAFETY=true to bypass (emergency only).
 *
 * @task T9054 — engine parameter dropped; CLEO is SQLite-only (ADR-006).
 */
export declare function createDataAccessor(cwd?: string): Promise<import('@cleocode/contracts').DataAccessor>;
/**
 * Get a tasks-DB DataAccessor for the given working directory.
 *
 * This is the canonical tasks-only factory. Name is explicit about scope —
 * the former `getAccessor` name implied universality and caused the
 * gitnexus graph to misclassify it as a universal key (T9054).
 *
 * @param cwd - Optional project root (defaults to process.cwd() resolution).
 * @returns DataAccessor backed by tasks.db (ADR-006, ADR-068).
 */
export declare function getTaskAccessor(cwd?: string): Promise<import('@cleocode/contracts').DataAccessor>;
/**
 * @deprecated Renamed to {@link getTaskAccessor} (T9054). Will be removed in a future minor version.
 * Use `getTaskAccessor` or `openCleoDb('project', cwd)` instead.
 */
export declare function getAccessor(cwd?: string): Promise<import('@cleocode/contracts').DataAccessor>;
/**
 * Alias: get a DBHandle for the project-scope (tasks) database.
 *
 * This is the canonical replacement for getAccessor() when callers
 * need the native DB handle rather than the full DataAccessor interface.
 * Delegates to openCleoDb('project', cwd).
 *
 * @param cwd - Optional working directory.
 * @returns DBHandle for the project-scope `cleo.db`.
 */
export declare function getAccessorDb(cwd?: string): Promise<import('./open-cleo-db.js').DBHandle>;
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