check-env

Validate required environment variables for presence and formatting.

2|Updated Apr 11, 2026

Search Tags:#debugging #deployment #validation #config #setup #environment #env-vars

Ready to run

npx skills add https://github.com/PlazaCC/antes-da-tela --skill check-env-plazacc

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: check-env
Source: https://github.com/PlazaCC/antes-da-tela/tree/main/.agents/skills/check-env
Command: npx skills add https://github.com/PlazaCC/antes-da-tela --skill check-env-plazacc

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Verifies that all required environment variables are present and correctly formatted, preventing runtime errors during setup, debugging, or deployment.

Core Features & Use Cases

Ensures mandatory keys (e.g., NEXT_PUBLIC_SUPABASE_URL, DATABASE_URL, RESEND_API_KEY) are configured with non-empty values.
Validates basic formatting rules (URL schemes, token prefixes) and provides guidance when a variable is missing or malformed.
Useful in local development, CI pipelines, and pre-deployment checks to surface configuration gaps early.

Quick Start

Validate that your environment is properly configured by checking all required variables before starting the application.

Frequently Asked Questions about check-env

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I verify required environment variables are present before deployment?▼

To verify required environment variables before deployment, check that mandatory keys like NEXT_PUBLIC_SUPABASE_URL and DATABASE_URL are configured with non-empty values and correct formatting patterns to prevent runtime errors.

Why does my application fail to connect when environment variables are malformed?▼

Applications fail when environment variables are malformed because connection strings like DATABASE_URL lack valid URL schemes or required prefixes. Validating formatting rules early surfaces these configuration gaps during setup or debugging.

Can I validate environment variable formatting in a CI pipeline?▼

Yes, you can validate environment variable formatting in CI pipelines by checking that keys such as RESEND_API_KEY enforce presence, non-emptiness, and basic formatting patterns to surface configuration gaps before deployment.

What is the best way to check for missing env vars during local development?▼

The best way to check for missing env vars during local development is to validate required environment variables for presence and non-emptiness, which reports missing variables with guidance on where to locate them.

Does environment variable validation work with Supabase and Resend API keys?▼

Yes, environment variable validation works with Supabase and Resend API keys. It validates that NEXT_PUBLIC_SUPABASE_URL and RESEND_API_KEY are present, non-empty, and correctly formatted with proper URL schemes and token prefixes.