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UPG is in early alpha. The specification is still evolving and may change between versions.
Tools/Schema

Tool Group

Schema

Entity schemas, valid children, entity metadata, and type labels.

get_entity_schema

Return expected properties, valid statuses, valid edge types, and domain for an entity type. Lets agents construct valid entities without skill prompts. Optional `include` folds in valid child types / super-domain region; optional `resolve_edge_to` folds in the canonical edge for this type → that target.

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