# Garch Volatility Toolkit

> Walk-forward GARCH(1,1) and GJR(1,1) volatility forecasting. DCC de-weighting overlay (+0.054 Sharpe), GJR inverse vol-scaling (+0.449 Sharpe). Campaign results from 20 seeds on BTC/ETH/SOL/AVAX, 2025-26 test window.

## Facts
- Page: https://tashan.sh/capability/plugin-terrylica-cc-skills-garch-volatility-toolkit
- tashan id: plugin:terrylica/cc-skills/garch-volatility-toolkit
- Source: https://github.com/terrylica/cc-skills
- Type: plugin
- Category: cloud
- tashan score: 45.0 / 100
- Adoption: 7.0
- Upkeep: 99.0
- Freshness: 98.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
/plugin marketplace add terrylica/cc-skills
/plugin install garch-volatility-toolkit@cc-skills
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-14 by tashan (https://tashan.sh) from public evidence. Scorer s5.