# Architecture Decisions

> **Status:** Current decision index. A decision describes an implemented and accepted boundary; draft proposals belong under `rfcs/` or `docs/plans/`.

## Current decisions

- [Mos runtime portability M1 — logical identity and fencing](mos-runtime-portability-m1.md) — implemented lease, grant, audit, policy, and fencing boundary; connector activation remains held.

Decision pages do not override product requirements, API contracts, or executable behavior. Each page must identify implementation evidence, operational status, and explicit non-goals.

## Related

- [[DEVELOPER-GUIDE/architecture/README|Architecture index]]
- [[PRD|Product requirements]]
- [[ADMIN-GUIDE/operations/mos-connector-lease-operations|Held connector lease operations]]