Currently, an entity's list of claims is in some cases represented as a flat list, and in other cases grouped by property ID. Similar confusion exists for the snak lists that make up qualifiers and references.

To resolve this:

• There needs to be a serializer option for toggeling grouping (on different levels)
• Unserializers need to support both forms everywhere
• The overall JSON documentation needs to document both forms
• API modules as well as Special:EntityData need to clearly document which form is used when, where and for what.
• API modules may provide options to specify the desired output mode for claim lists and snak lists.

Version: unspecified
Severity: normal