/**
 * The snapshot of a run: what its validation read, kept in its run directory
 * at the first start with the input and the settings, so that a resume runs
 * the flow the run started with, whatever the disk says by then.
 *
 * `snapshot.json` holds every flow file reached, each agent named, each check
 * script's content, the input and the settings. The skills an agent names
 * are copied under `agents/<agent>/skills/`, where a definition keeps its
 * own: read back, the agent lives there, so its skills resolve to the copies
 * at the check and at the spawn alike.
 */
import type { FlowCatalogue } from "../catalogue.ts";
import type { CheckedRun } from "../check-run.ts";
/** Where the snapshot is, in a run directory. */
export declare const SNAPSHOT_FILE = "snapshot.json";
/** What a run was started with, beside its flow: frozen, so a resume is the same run. */
export type Settings = {
    /** The working tree it was checked against. */
    readonly cwd: string;
    /** Whether a person could answer when it started. */
    readonly somebodyThere: boolean;
    /** The model it was started with, over the flow's and each agent's own. */
    readonly model?: string;
    /** The bound of every agent turn it was started with. */
    readonly timeoutMs?: number;
};
/** A snapshot read back: the flow's name, a catalogue holding exactly what its check read, and what the run was started with. */
export type Snapshot = {
    /** The flow's name. */
    readonly flow: string;
    /** Exactly what the check read: the flow's file, the files it reaches, the agents it names. */
    readonly catalogue: FlowCatalogue;
    /** Each check script's content, by its path. */
    readonly scripts: ReadonlyMap<string, string>;
    /** What the run was started on. */
    readonly input: unknown;
    /** What it was started with, beside its flow. */
    readonly settings: Settings;
};
/**
 * Writes the snapshot of `run`, started on `input` with `given`, into
 * `runDir`, made when missing. Throws on a directory already holding one:
 * a run directory is one run's.
 */
export declare function writeSnapshot(runDir: string, run: CheckedRun, input: unknown, given: Pick<Settings, "model" | "timeoutMs">): void;
/** The snapshot in `runDir`. Throws when there is none, or one of another version. */
export declare function readSnapshot(runDir: string): Snapshot;
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