Env File Generator (Grade A) logo

Env File Generator (Grade A)Security-tested development skill for Claude AI. Grade A. Scan codebase for environment variable references and generate a complete .env.example file with safe placeholders. Use when the user asks to

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Daniel NikulshynReviewed by Daniel Nikulshyn·Updated July 2026

Overview

The Env File Generator is a security-tested development skill for Claude AI, graded A. It scans a codebase for environment variable references and generates a complete .env.example file with safe placeholders. This tool is used when a user requests to create or update .env.example or audit environment variable usage. It searches for patterns like process.env.*, os.environ, os.getenv, System.getenv, and checks various configuration files. The tool then catalogs variables, classifies their sensitivity levels, and generates a comprehensive .env.example file with documentation and placeholder values.

Key features

  • Scans codebase for environment variable references
  • Generates comprehensive .env.example file
  • Provides safe placeholder values
  • Supports multiple programming languages
  • Cross-references with existing .env.example files

Pricing

Model
Free
Category
Skills
Rating
No reviews yet

Use cases

Create or Update .env.example

Use the Env File Generator when creating a new project or updating an existing one to ensure all environment variables are properly documented and configured.

Audit Environment Variable Usage

Run the Env File Generator to audit environment variable usage in an existing codebase, identifying potential issues or missing variables.

Pros & Cons

Pros

  • Automates the creation and updating of .env.example files
  • Ensures all required environment variables are documented
  • Provides safe placeholder values for sensitive information
  • Supports multiple programming languages and frameworks

Cons

  • May require access to project source code
  • Needs knowledge of required versus optional environment variables
  • Might not cover all edge cases or custom configurations

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Q&A

Is the placeholder text safe for sensitive variables?

The tool classifies sensitivity levels and replaces sensitive values with generic placeholders like 'your secret here' or 'your jwt secret', preventing accidental exposure of real secrets.

Asked by Kalinda Reddy · Feb 16, 2026

What happens if there is already an .env.example in the repository?

The generator cross‑references the existing file, compares entries, and updates or adds missing variables, ensuring all discovered env vars are documented without duplicating entries.

Asked by Tariq Aziz · Feb 10, 2026

Can the tool handle projects in multiple programming languages?

Yes, it supports JavaScript/Node (process.env), Python (os.environ/os.getenv), Java (System.getenv), and also reads Docker, Compose, and CI/CD configuration files for env references.

Asked by Sami Virtanen · Dec 2, 2025

How does the Env File Generator identify which environment variables are required?

It scans the codebase for patterns like process.env.*, os.environ, os.getenv, and System.getenv, then checks for default values. Variables without defaults are flagged as required, while those with defaults are marked optional.

Asked by Yara Mansour · Nov 20, 2025

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