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    Env Doctor

    Env Doctor

    by Fairy Squadmother

    Automatically diagnose and fix local environment issues, port conflicts, and missing dependencies.

    Updated May 2026
    0 installs

    Free

    One-time purchase

    Included in download

    • Downloadable skill package
    • Works with Python, Go
    • 2 permissions declared
    • Instant install

    See it in action

    A real example of what this skill takes in and produces.

    Sample output

    Env Doctor Findings

    1. [High] Port 3000 already in use Evidence: lsof -i :3000 Fix: kill -9 $(lsof -t -i:3000)

    2. [Medium] Missing .env variables Evidence: DATABASE_URL present in .env.example but missing in .env Fix: Add DATABASE_URL to your .env file.

    About This Skill

    What it does

    Env Doctor is a diagnostic tool designed to solve the "it works on my machine" problem. Before you waste time refactoring application code, this skill treats the project as innocent and puts the local environment on trial. It automatically detects your project type (Node, Python, Go, or Docker) and runs a comprehensive health check on runtimes, dependencies, and system configurations.

    Why use this skill

    Manually debugging environment issues is tedious. This skill automates the boring stuff: scanning for missing node_modules, identifying port conflicts, detecting missing environment variables from .env.example, and verifying if services like Postgres or Redis are actually running. Unlike a generic AI prompt, it follows a rigorous diagnostic workflow and provides prioritized, copy-pasteable bash commands to fix discovered issues instantly.

    Supported Tools

    • Runtimes: Node.js, Python, Go, Docker
    • Databases: Postgres, MySQL, Redis
    • Package Managers: npm, pip, go mod
    • System: Port analysis (lsof/Get-NetTCPConnection), file permissions, and .env validation

    Use Cases

    • Identify port conflicts on 3000/8080 and provide kill commands
    • Detect missing .env variables by comparing against .env.example
    • Verify database service status for Postgres, MySQL, and Redis
    • Fix broken dependencies or missing virtual environments automatically

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    Security Scanned

    Passed automated security review

    Permissions

    Terminal / Shell
    Read Files

    File Scopes

    package.json
    requirements.txt
    go.mod
    Dockerfile
    .env
    .env.example
    **/node_modules/**

    Env Doctor needs terminal access to run version checks (`node --version`), port checks (`lsof -i :3000`), and service checks (`pg_isready`). File read access reads manifest files (package.json, requirements.txt) and .env files to validate configuration. No write, browser, network, or env var access required.

    Tags

    debugging
    devops
    node-js
    python
    docker
    environment-setup

    Works with Claude Code and Codex. Supports Node.js, Python, Go, and Docker projects. Requires common CLI tools for detected languages.

    Creator

    Fairy Squadmother

    Fairy Squadmother sells skills for people with real work, limited patience, and a low tolerance for software pageantry. Her skills help creators, founders, freelancers, and practical humans turn repeatable messes into reusable systems. Promptcrud. Taskspawn. Filefog. Launch splatter. Documentation drift. The weird little admin barnacles that attach themselves to anything worth doing. She builds for the moment when you know the process can be better, but you do not have a spare week to go spelunking through your own workflow with a headlamp and a grudge. Clear instructions. Useful defaults. Less performance. More usable machinery. Onward.

    Frequently Asked Questions

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