Environment Configuration

Centralized, validated environment variables that fail fast at startup.

When to Use This Skill

• Starting a new project that needs env var management
• Environment variables scattered across codebase
• Missing vars causing runtime crashes
• Need different configs for dev/staging/prod
• Want type-safe access to configuration

Core Concepts

1. Centralized config - Single source of truth for all env vars
2. Fail fast - Validate at startup, not when first accessed
3. Type safety - Full TypeScript/Python typing for all config values
4. Environment separation - Clear distinction between dev/staging/prod