# `flow/run/snapshot` Source: [`src/flow/run/snapshot.ts`](https://github.com/AI-for-dev/combo/blob/main/src/flow/run/snapshot.ts) 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//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. ## `readSnapshot` *function* ```typescript export function readSnapshot(runDir: string): Snapshot { /* … */ } ``` The snapshot in `runDir`. Throws when there is none, or one of another version. ## `Settings` *type* ```typescript 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; }; ``` What a run was started with, beside its flow: frozen, so a resume is the same run. ## `Snapshot` *type* ```typescript 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; /** What the run was started on. */ readonly input: unknown; /** What it was started with, beside its flow. */ readonly settings: Settings; }; ``` A snapshot read back: the flow's name, a catalogue holding exactly what its check read, and what the run was started with.