vars for VS Code

Encrypted, typed, schema-first environment variables — right in your editor.

Features

• Syntax highlighting for .vars files — variable names, Zod schemas, environment blocks, encrypted values, check blocks, groups, and metadata
• Real-time diagnostics — parse errors, expired secrets, deprecation warnings, and undeclared environment usage
• Autocomplete — top-level keywords (env, param, use, group, public, check), Zod schema methods, metadata keys, environment names, and check block functions
• Hover information — variable schema, visibility (public/secret), and metadata (description, owner, expires, tags)
• Go to Definition — jump to variable declarations and imported files
• Code Actions — quick fixes for common issues

The .vars Format

env(dev, staging, prod)
param region : enum(us, eu) = us

public APP_NAME = "my-app"
public PORT : z.number().int().min(1).max(65535) = 3000

DATABASE_URL : z.string().url() {
  dev     = "postgres://localhost:5432/myapp"
  staging = "postgres://staging.db:5432/myapp"
  prod    = enc:v2:aes256gcm-det:abc123:def456:ghi789
} (
  description = "Main database connection"
  owner = "backend-team"
  expires = 2026-12-31
)

LOG_LEVEL : z.enum(["debug", "info", "warn", "error"]) = "info" {
  dev = "debug"
  prod = "warn"
}

group cache {
  REDIS_HOST : z.string() {
    dev  = "localhost"
    prod = "redis.internal"
  }
  REDIS_PORT : z.number() = 6379
}

check "No debug in prod" {
  env == "prod" => LOG_LEVEL != "debug"
}

use "./shared.vars" { pick: [API_KEY] }

Commands

Settings

Requirements

No additional dependencies needed. The extension bundles the vars language server.

Learn More

• vars documentation
• CLI reference