# @neith/engine-gas

Neith sovereign Gameplay Ability System depth: attribute sets with
base/current-value aggregation (add/multiply/divide/override),
instant/duration/infinite/periodic gameplay effects with stacking
(none/by-source/by-target), magnitude calculation (scalable
curve/set-by-caller/custom execution), gameplay cues with FX+audio binding and
local/replicated execution, ability->tag->effect chains with cooldown/cost
gating and activation-failure tags, predictive client activation with server
rollback, per-attribute level-scaling curves, a GAS debugger overlay, and
save/restore across levels (phase 172.3)

## At a glance

- **Path:** `libs/neith/engine-gas`
- **Domain:** neith (active)
- **Owner:** @GreyChimp
- **Docs:** [deep-dive](/docs/domains/neith/deep-dive) ·
  [systems one-pager](/docs/systems/lib-neith.md)
- **Nx project:** `@neith/engine-gas`

## Commands

```bash
pnpm nx test @neith/engine-gas
pnpm nx lint @neith/engine-gas
```

<!-- Generated starting point (audit F-3): owners, replace this note with usage examples and API notes. -->
