# V2 Anti-Cheat Classifier Suite Model Card

## Purpose

The V2 anti-cheat classifier suite prioritizes fair-play review for suspicious
competitive activity. The suite covers smurf, win-trading, coordinated-throw,
and geographic-anomaly classifiers.

## Packages

- Training loop and event-bus dataset contract: `@nous/training`.
- Runtime model metadata and Model Card hosting: `@nous/safety`.
- AI-system-of-record and conformity audit export: `@themis/accountability`.
- V2 bridge: `@v2/nous-anti-cheat-classifiers`.
- Labeled event transport: `@oshun/event-bus`.
- Appeal route for classifier-assisted sanctions:
  `@v2/themis-dispute-resolution`.

## EU AI Act Classification

Risk class: Limited risk.

Disclosure text: V2 uses fair-play classifiers to prioritize manual review of
suspicious competitive activity. Classifiers do not issue automatic discipline.

## Inputs

- Match completion telemetry and replay evidence.
- Ranked point deltas and repeated opponent graph signals.
- Player skill-profile changes and cross-account similarity features.
- Tournament completion and bracket relationship features.
- Session starts, account geo changes, and region entitlement checks.

## Event-Bus Training Data

V2 publishes labeled examples on `@oshun/event-bus` topics including
`v2.match.completed`, `v2.player.skill-profile.updated`,
`v2.rank.points.changed`, `v2.tournament.event.completed`,
`v2.replay.evidence.attached`, `v2.player.session.started`,
`v2.account.geo.changed`, and `v2.entitlement.region.checked`.

`@nous/training` requires clean and positive labels for every classifier before
a training plan can be accepted.

## Player Controls

Ranked integrity signals do not offer opt-out. Players receive a transparency
notice where required by region and can appeal classifier-assisted sanctions
through `@v2/themis-dispute-resolution`.

## Safety And Evaluation

- Rollback isolation: no live classifier RPC is reachable from rollback frames.
- Human review: classifier output can prioritize review queues but cannot issue
  automatic discipline.
- Appeal coverage: all classifier-assisted sanctions keep an appeal route.
- Fallback: if classifier training or Model Card metadata is unavailable, V2
  uses deterministic rules and manual review queues only.