env-proof

Prove your environment before you run. Validate your app's environment against a typed contract — fail fast in local dev and CI, never leak secrets.

Status: under active development — v1.0.0 coming soon. See SPEC.md for the exact V1 specification.

Quickstart (preview)

// env.contract.ts
export default {
  DATABASE_URL: { required: true, type: 'url' },
  PORT:         { required: true, type: 'number', min: 1, max: 65535 },
  NODE_ENV:     { required: true, type: 'enum', values: ['development', 'test', 'production'] },
} as const;

npx env-proof   # ✓ pass → exit 0 · ✗ fail → every problem listed, exit 1

What it is NOT

• Not dotenv — it does not load .env files.
• Not a config framework — one job only: verify the environment satisfies the contract.
• No secret management, no coercion — values are checked exactly as provided.

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