# Game Client Bridge Contract

The game client bridge is optional and exists only for games that need in-game command execution or snapshots.

## Payloads

- `ClientHello`: game client credential, server instance ID, version, and display name.
- `ClientHeartbeat`: session token, version, status, and game connection status.
- `ClientCommandPoll`: session token and batch limit.
- `ClientCommandResult`: command ID, status, bounded output, and timestamp.
- `ClientSnapshot`: snapshot mode, raw bounded text or structured data reference, and timestamp.

## Rules

- The bridge must not carry run lifecycle jobs.
- The bridge must not carry run log ingest batches.
- Games without in-game bridge needs should not enable this channel.