Skillget

terraform-skill

skill
SUMMARY

The Claude Agent Skill for Terraform and OpenTofu - testing, modules, CI/CD, and production patterns

README.md

Terraform Skill for Claude

Claude Skill
Terraform
OpenTofu
License

Comprehensive Terraform and OpenTofu best practices skill for Claude Code. Get instant guidance on testing strategies, module patterns, CI/CD workflows, and production-ready infrastructure code.

What This Skill Provides

🧪 Testing Frameworks

  • Decision matrix for choosing between native tests and Terratest
  • Testing strategy workflows (static → integration → E2E)
  • Real-world examples and patterns

📦 Module Development

  • Structure and naming conventions
  • Versioning strategies
  • Public vs private module patterns

🔄 CI/CD Integration

  • GitHub Actions workflows
  • GitLab CI examples
  • Cost optimization patterns
  • Compliance automation

🔒 Security & Compliance

  • Trivy, Checkov integration
  • Policy-as-code patterns
  • Compliance scanning workflows

📋 Quick Reference

  • Decision flowcharts
  • Common patterns (✅ DO vs ❌ DON'T)
  • Cheat sheets for rapid consultation

Installation

This plugin is distributed via Claude Code marketplace using .claude-plugin/marketplace.json.

Claude Code (Recommended)

/plugin marketplace add antonbabenko/terraform-skill
/plugin install terraform-skill@antonbabenko

Manual Installation

# Clone to Claude skills directory
git clone https://github.com/antonbabenko/terraform-skill ~/.claude/skills/terraform-skill

Private Testing

While the repository is private, you can test locally:

git clone [email protected]:antonbabenko/terraform-skill.git ~/.claude/skills/terraform-skill
# Claude Code will load it from the local filesystem

Verify Installation

After installation, try:

"Create a Terraform module with testing for an S3 bucket"

Claude will automatically use the skill when working with Terraform/OpenTofu code.

Quick Start Examples

Create a module with tests:

"Create a Terraform module for AWS VPC with native tests"

Review existing code:

"Review this Terraform configuration following best practices"

Generate CI/CD workflow:

"Create a GitHub Actions workflow for Terraform with cost estimation"

Testing strategy:

"Help me choose between native tests and Terratest for my modules"

What It Covers

Testing Strategy Framework

Decision matrices for:

  • When to use native tests (Terraform 1.6+)
  • When to use Terratest (Go-based)
  • Multi-environment testing patterns

Module Development Patterns

  • Naming conventions (terraform-<PROVIDER>-<NAME>)
  • Directory structure best practices
  • Input variable organization
  • Output value design
  • Version constraint patterns
  • Documentation standards

CI/CD Workflows

  • GitHub Actions examples
  • GitLab CI templates
  • Atlantis integration
  • Cost estimation (Infracost)
  • Security scanning (Trivy, Checkov)
  • Compliance checking

Security & Compliance

  • Static analysis integration
  • Policy-as-code patterns
  • Secrets management
  • State file security
  • Compliance scanning workflows

Common Patterns & Anti-patterns

Side-by-side ✅ DO vs ❌ DON'T examples for:

  • Variable naming
  • Resource naming
  • Module composition
  • State management
  • Provider configuration

Why This Skill?

Based on Production Experience:

  • Patterns from terraform-best-practices.com
  • Community-tested approaches from terraform-aws-modules
  • AWS Hero expertise in enterprise IaC
  • Real-world usage across 100+ modules

Version-Specific Guidance:

  • Terraform 1.0+ features
  • OpenTofu 1.6+ compatibility
  • Native test framework (1.6+)
  • Current tooling ecosystem (2024-2026)

Decision Frameworks:
Not just "what to do" but "when and why" - helping you make informed architecture decisions.

Requirements

  • Claude Code or other Claude environment supporting skills
  • Terraform 1.0+ or OpenTofu 1.6+
  • Optional: MCP Terraform server for enhanced registry integration

Contributing

See CLAUDE.md for:

  • Skill development guidelines
  • Content structure philosophy
  • How to propose improvements
  • Testing and validation approach

Issues & Feedback:
GitHub Issues

Releases

Releases are automated based on conventional commits in commit messages:

Commit Type Version Bump Example
feat!: or BREAKING CHANGE: Major 1.2.3 → 2.0.0
feat: Minor 1.2.3 → 1.3.0
fix: Patch 1.2.3 → 1.2.4
Other commits Patch (default) 1.2.3 → 1.2.4

Releases are created automatically when changes are pushed to master.

Related Resources

Official Documentation

Community Resources

Development Tools

License & Attribution

License: Apache 2.0 - see LICENSE

If you create derivative works or skills based on this skill, please include:

Based on terraform-skill by Anton Babenko
https://github.com/antonbabenko/terraform-skill
terraform-best-practices.com | Compliance.tf

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