/**
 * Result of checking JSONL context existence for a delegation.
 */
export interface CheckResult {
    exists: boolean;
    path: string | null;
    entries: number;
}
/**
 * Result of ensuring (validating) JSONL context for a delegation.
 */
export interface EnsureResult {
    ok: boolean;
    path: string | null;
    message: string;
}
/**
 * Check whether a delegation JSONL context file exists and count its entries.
 *
 * Reads the file synchronously if it exists, parses each line as JSON, and
 * counts lines that parse successfully (non-empty and valid JSON).
 *
 * Returns a `CheckResult` with `exists`, the absolute `path`, and `entries`.
 */
export declare function checkJsonlExists(changeId: string, role: string, cwd?: string): CheckResult;
/**
 * Validate that a delegation JSONL context file exists and contains entries.
 *
 * If the JSONL file is missing or empty, returns `ok: false` with a
 * descriptive message. If the role is not one of the recognized delegation
 * roles, also returns `ok: false`.
 *
 * This is a validation-only function — it does NOT auto-generate JSONL.
 */
export declare function ensureJsonlContext(changeId: string, role: string, cwd?: string): Promise<EnsureResult>;