# ADR: Neith Integration Scope

Status: Accepted  
Date: 2026-05-12

## Decision

V2 builds its P1 rollback, matchmaking adapter, and transport integration
locally. Neith is not a launch dependency for deterministic netcode.

## Implementation Contract

- `V2Netcode` owns rollback for 1v1 and 2v2 tag launch modes.
- `V2OnlineServices` may reuse non-deterministic platform abstractions only
  after a wrapper test proves they do not enter the rollback simulation.
- A future Neith adapter can be evaluated after §7 is complete and replay
  determinism is already proven.