Devcontainer Diagnostic

Diagnose devcontainer and Docker development environment problems. Help create reproducible, fast-starting development environments that work consistently across VS Code, GitHub Codespaces, and team members.

When to Use This Skill

Use this skill when:

• Setting up a new devcontainer
• Container startup is too slow
• Configuration errors or conflicts
• Different behavior in VS Code vs Codespaces
• Multi-service development environment needed

Do NOT use this skill when:

• Writing application code
• Deploying to production
• Configuring CI/CD pipelines

Core Principle