> ## Documentation Index
> Fetch the complete documentation index at: https://docs.geval.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Config generator (web UI)

> Generate Geval-compatible contract.yaml and policy YAML in the browser — config.geval.io

The **[Geval config generator](https://config.geval.io)** is a **Next.js** app that helps you build **`contract.yaml`** and policy files **without hand-writing YAML** from scratch.

## What it does

* **Wizard-style flow** — complete one contract / policy / rule at a time to reduce mistakes.
* **Validation** — highlights field errors before export.
* **Export** — download a ZIP or copy YAML for use with **`geval validate-contract`** and **`geval check`**.

## Relationship to the CLI

The web UI **generates YAML**; it does not evaluate policies. You always **`validate-contract`** and **`check`** with the **Geval binary** locally or in CI.

## Workflow

1. Generate YAML in the browser.
2. Commit files to your repo (e.g. `.geval/`).
3. Run:

```bash theme={null}
geval validate-contract .geval/contract.yaml
geval check --contract .geval/contract.yaml --signals signals.json
```

## See also

[Quickstart](/quickstart) · [validate-contract](/cli/validate-contract)