This entry is not an identity, title, personality type, or moral status. It is a principle-intersection geometry used to map coherent expression, shadow risk, relational impact, timing, restoration, and scaling behavior.

2. Core Function

Walks beside another node without taking over its path.

3. Coherent Expression

presence, support, and mutuality.

4. Shadow / Inversion Expression

dependency, identity fusion, silent contract formation.

5. Registry Mapping

Source depth: direct

6. Template Expansion Notes

The full ARCHETYPE-TEMPLATE.md expansion should add:

principle basis and Sigma boundaries
interface stack profile
operator and coupling profiles
scaling risks
diagnostics
restoration arc
AI-mediated use
symbolic / teaching translation

Entry Closure

Companion maps a coherent agency pattern in the Relational / Care family and must remain audit-bound rather than identity-bound.