import type { BaseGrader } from "../grading/baseGrader.js";
import type { GradersSnapshot, RecordedGraders } from "../grading/gradingModule.js";
/** Load the graders of a `graders.json` from disk. Each grader is named by
 *  the file and its hash, as a module's graders are, so a score row says
 *  which version of the file produced it. */
export declare function loadGradersJson(filePath: string): Promise<BaseGrader[]>;
/** What a run directory keeps for a `graders.json`: the file itself under
 *  its hash. Loads the graders once so a broken file fails here, before any
 *  agent runs. No JSON kind reads a file by path, so there are no judge
 *  files; a checklist's context lives under `graderFiles/`, which the run
 *  directory stores on its own. */
export declare function snapshotGradersJson(filePath: string): Promise<GradersSnapshot>;
/** Load graders from a run directory's stored `graders.json`. The revision
 *  is the hash under the original source path, so a row graded from the
 *  snapshot and one graded live from the unchanged file agree. */
export declare function loadGradersJsonSnapshot(gradersDir: string, recorded: RecordedGraders): Promise<BaseGrader[]>;