# @v2/game-mechanics-ab-testing

V2 live-ops A/B testing framework for game mechanics. The package performs
deterministic assignment of hashed accounts to weighted variants, records
exposure/engagement/retention events, and reports statistical significance rows
for engagement and retention metrics.

Primary API:

- `assignV2GameMechanicsABVariant`
- `buildV2GameMechanicsABTestingSurface`

Targeted verification:

```bash
pnpm --filter @v2/game-mechanics-ab-testing test
pnpm --filter @v2/game-mechanics-ab-testing typecheck
pnpm --filter @v2/game-mechanics-ab-testing lint
pnpm --filter @v2/game-mechanics-ab-testing build
python3 V2/ue/Tools/check-v2-game-mechanics-ab-testing.py
```