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Environment Variable Manager (env-manager)

Scans, validates and syncs .env files, then generates safe .env.example templates and schemas.

Dev & CodingIntermediate★ 859⑂ 94AI score 9/10Last updated: Sep 20, 2026

What it does

  • Scans every .env* file in the project, collecting only variable names, source file and empty/filled state — real values stay masked.
  • Cross-checks code references (process.env.X, os.environ['X'], os.getenv('X')) to surface defined-but-unused and used-but-undefined variables.
  • Validates URL formats, port ranges and booleans, and flags hardcoded API keys, tokens and passwords with file:line.
  • Generates .env.example, .env.schema.json, Docker Compose env_file blocks and CI/CD secrets checklists.
  • Includes framework gotchas (Next.js NEXT_PUBLIC_, Vite VITE_, CRA REACT_APP_, Docker ARG vs ENV, monorepo loading).

Who it's for

  • Web/backend developers juggling dev, staging and production configs.
  • Monorepo teams that need shared env vars kept in sync.
  • Anyone auditing a codebase for leaked or hardcoded secrets before committing.

Examples

  1. "Scan all .env files and tell me what's missing or unused" → structured analysis report.
  2. "Generate a .env.example from my current config" → annotated template with no real values.
  3. "Find hardcoded tokens and suggest how to move them to env vars" → file:line list plus migration steps.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/laolaoshiren/claude-code-skills-zh/HEAD/skills/env-manager/SKILL.md

What I want: (describe your task here)

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↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/env-manager folder from the GitHub repo laolaoshiren/claude-code-skills-zh into my ~/.claude/skills/env-manager/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/laolaoshiren/claude-code-skills-zh.git && mkdir -p ~/.claude/skills && cp -r claude-code-skills-zh/skills/env-manager ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/laolaoshiren/claude-code-skills-zh.git
  3. Create the skills folder: mkdir -p ~/.claude/skills
  4. Copy the skill: cp -r claude-code-skills-zh/skills/env-manager ~/.claude/skills/
  5. Run claude inside your project and ask something like "audit my environment variables" or "generate a .env.example".
  6. Before running, confirm .env is listed in .gitignore so nothing sensitive is committed.
View source on GitHub ↗License: MIT