Varlock - AI-safe .env files

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AI-safe .env files:
Schemas for agents,
Secrets for humans.

# Declarative schema — AI agents get full context, never secret values
# @sensitive @required @type=string(startsWith=sk-)
OPENAI_API_KEY=

# @type=enum(development, preview, production, test)
APP_ENV=development # set non-sensitive default values directly

# use function calls to securely fetch data from external sources
XYZ_TOKEN=exec('op read "op://api-prod/xyz/auth-token"')

Unlike .env.example, your .env.schema is a single source of truth, built for collaboration, that will never be out of sync. AI agents can read your schema for full context — without accessing your secrets.

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AI-Safe Config

Your .env.schema is readable by AI agents — they get full context on your config without ever seeing secret values. Prevent leaks to AI servers by design.

Leak Scanning

Proactively scan your codebase for leaked secrets with varlock scan. Set up git hooks to catch leaks before they're committed.

Runtime Protection

Redact sensitive values from logs and console output. Detect leaks in bundled client code and outgoing server responses at runtime.

Validation

Powerful validation capabilities, without custom logic. Misconfiguration errors are surfaced much earlier in your development cycle, with clear error messages.

Type-safety

Automatically generate types according to your schema - the single source of truth - instead of writing them by hand.

Environments

Combine defaults, environment-specific .env files, local git-ignored overrides, and process env vars. Compose values together using functions.

Secure secrets

Load secrets from 6 provider plugins — 1Password, Infisical, AWS Secrets Manager, Azure Key Vault, Google Secret Manager, and Bitwarden — or any CLI tool.