ResourcePacksInfo

Lists the resource packs the client must or may download before joining, with sizes, content keys and sub-pack information.

resource-packs-info.bin

struct ResourcePacksInfo {
  bool                                         ResourcePackRequired;
  bool                                         HasAddonPacks;
  bool                                         HasScripts;
  bool                                         ForceDisableVibrantVisuals;
  PackIdVersion                                WorldTemplateIdAndVersion;
  varuint32 [] · PackInfoData[]                ResourcePacks;
}

Structure

Field	Type	Description
Resource Pack Required	bool	Client must accept packs to join.
Has Addon Packs	bool	World contains add-ons.
Has Scripts	bool	Packs contain scripts (enables the script API client-side).
Force Disable Vibrant Visuals	bool	Disables the deferred rendering pipeline for this session.
World Template Id And Version	PackIdVersion	UUID + version of the world template.
Resource Packs	varuint32 count + PackInfoData[]	Per pack: UUID, version, size, content key, sub-packs, content identity, scripts flag.

Structure of PackIdVersion

Field	Type	Description
Id	uuid.UUID
Version	SemVersion

Structure of PackInfoData

Field	Type	Description
Pack Id Version	PackIdVersion
Pack Size	uint64 (LE)
Content Key	string
Subpack Name	string
Content Identity	ContentIdentity
Has Scripts	bool
Is Addon Pack	bool
Is Ray Tracing Capable	bool
Cdn Url	string

Structure of SemVersion

Field	Type	Description
Version	string

Structure of ContentIdentity

Field	Type	Description
Identity	string

Notes

Sent right after encryption is confirmed. The client answers with ResourcePackClientResponse.
Resource Pack Required true forces the accept dialog — refuse and the client quits.