env-validator

# Env Validator Validates environment variable configurations by cross-referencing `.env` files against project requirements. Catches missing variables, type errors, insecure defaults, and orphaned entries before they cause runtime failures. ## Reference Files | File | Contents | Load When | | ------------------------------------ | ------------------------------------------------- | ---------------------- | | `references/validation-rules.md` | Built-in validation rules and severity definitions | Always | ## Prerequisites - A `.env` file (or equivalent) in the project - Optionally: `.env.example`, `docker-compose.yml`, or deployment manifests for cross-referencing ## Workflow ### Phase 1: Discovery Locate environment configuration sources in the project: 1. **Primary file:** Find `.env` in the project root. If absent, check for `.env.local`, `.env.development`, `.env.production` 2. **Schema file:** Find `.env.example` or `.env.template` — this defines the expected variables 3. **Code references:** Grep for `os.environ`, `process.env`, `env::var`, `os.Getenv` patterns to find variables referenced in code 4. **Deployment manifests:** Check `docker-compose.yml`, `Dockerfile`, `k8s/` manifests for `${VAR}` or `ENV VAR` patterns Report what was found before proceeding. ### Phase 2: Schema Extraction Build the expected variable schema from discovered sources: For eac...