---
term: anchor
category: spatial
status: canonical
authority: world.elonn.local
---

Anchor

The placement mode of a world object, determining whether it belongs to the personal carry layer or the shared field layer.

Values:
- carry — the object travels with the member (also: user anchored)
- field — the object is fixed in the shared spatial panorama (also: world anchored)
- object — the object is anchored to another object in the field; moves with that object rather than the member or the fixed environment (future; XR-relevant)

Allowed:
- anchor mode
- anchor_mode (API field name)
- carry anchor
- field anchor

Forbidden:
- placement mode (acceptable in technical docs prose; not the canonical noun)
- attachment type
- position type
- slot

Notes:
- anchor_mode is the canonical API field name. Use it in code and payloads.
- Do not expose "anchor" as a product-facing noun in UI copy. In UI, the distinction is surfaced as the carry layer vs. the field.

Related:
- carry
- field
- layout