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The Geval config generator is a Next.js app that helps you build contract.yaml and policy files without hand-writing YAML from scratch.

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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.

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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.

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Workflow

  1. Generate YAML in the browser.
  2. Commit files to your repo (e.g. .geval/).
  3. Run:
geval validate-contract .geval/contract.yaml
geval check --contract .geval/contract.yaml --signals signals.json

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See also

Quickstart · validate-contract