Agent skill

env-var-mapper

Generate environment variable to CLI argument mapping with prefix support, type conversion, and fallback chains for configuration.

a5c-aigithub.com/a5c-aiGitHub ↗
claude-codecodexcan modify filesMIT
Install
npx skills add a5c-ai/babysitter --skill env-var-mapper --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 8 KB
Bundled scripts: none
Allowed tools: ReadWriteEditBashGlobGrep
Path: library/specializations/cli-mcp-development/skills/env-var-mapper/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 1,642
Language: JavaScript

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Environment Variable Mapper Generate environment variable to CLI argument mapping for flexible configuration. ## Capabilities - Generate env var to argument mapping logic - Create prefix-based environment loading - Set up type conversion for env vars - Implement fallback chains (env -> config -> default) - Configure .env file support - Generate documentation for env vars ## Usage Invoke this skill when you need to: - Map environment variables to CLI arguments - Create prefix-based config loading - Implement configuration fallback chains - Support .env files in CLI applications ## Inputs | Parameter | Type | Required | Description | |-----------|------|----------|-------------| | language | string | Yes | Target language (typescript, python, go) | | prefix | string | No | Env var prefix (e.g., MYAPP_) | | mappings | array | Yes | Environment variable mappings | | dotenvSupport | boolean | No | Enable .env file support (default: true) | ### Mapping Structure ```json { "mappings": [ { "envVar": "PORT", "argument": "port", "type": "number", "default": 3000, "description": "Server port" }, { "envVar": "DATABASE_URL", "argument": "database-url", "type": "string", "required": true, "sen

What's inside
Steps it walks through
  1. Capabilities
  2. Usage
  3. Inputs
  4. Mapping Structure
  5. Generated Code Patterns
  6. TypeScript Mapper
  7. Python Mapper
  8. Go Mapper
  9. Workflow
  10. Best Practices Applied
  11. Target Processes
Ships with 1 file
  • README.md
More from babysitter
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About this skill
What does the env-var-mapper skill do?

Generate environment variable to CLI argument mapping with prefix support, type conversion, and fallback chains for configuration.

How do I install it?

Run `npx skills add a5c-ai/babysitter --skill env-var-mapper --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

Keep going