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Terraform Skill (diagnose-first IaC guidance)

A diagnose-first Terraform/OpenTofu companion that classifies the failure mode, applies version-aware guards, and always ships validation and rollback steps.

Dev & CodingIntermediate★ 2,376⑂ 217AI score 9/10Last updated: Jul 3, 2026

What it does

  • Forces context capture first: runtime (terraform vs tofu), exact version, providers, state backend, execution path, environment criticality.
  • Routes symptoms to a failure category — identity churn, secret exposure, blast radius, destroy cascade, CI drift, compliance gaps, testing blind spots, state corruption, provider upgrade/lifecycle risk.
  • Enforces a response contract: assumptions, risk category, chosen remediation and tradeoffs, exact validation commands, rollback notes.
  • Applies a version-floor table before emitting features (moved 1.1+, import 1.5+, native tests 1.6+, mocks 1.7+, removed 1.7+, S3 lockfile 1.10+, write_only 1.11+).
  • Bundles opinionated guidance on module hierarchy and layout, variable/output contracts, testing decision matrix, trivy/checkov scanning, secret handling, and state organization/splitting rules.
  • Documents terraform-ls capabilities (goToDefinition, findReferences) plus an explicit degradation path to rg + Read when LSP isn't available.

Who it's for

  • DevOps and platform engineers running multi-environment Terraform/OpenTofu.
  • Teams authoring or reviewing reusable modules who need consistent contracts and release checks.
  • Anyone building IaC CI/CD (GitHub Actions, GitLab CI, Atlantis) or fighting local-vs-CI plan drift.
  • Operators doing risky work: backend migrations, stuck locks, large refactors, provider removals.

Example uses

  1. "I deleted one item from a list and half my resources are being recreated" → diagnosed as count index churn, with a for_each migration plan and moved blocks so plan shows zero destroys.
  2. "Is passing a DB password as a variable safe?" → explains that sensitive = true only masks output while the value persists in state, then rewrites using a secret manager lookup or write_only on 1.11+.
  3. "Can I just target-destroy this one resource?" → runs terraform plan -destroy first, lists implicit dependents pulled in via locals/for_each, and requires explicit confirmation before proceeding.

· · · 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/antonbabenko/terraform-skill/HEAD/skills/terraform-skill/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ 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/terraform-skill folder from the GitHub repo antonbabenko/terraform-skill into my ~/.claude/skills/antonbabenko-terraform-skill/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/antonbabenko/terraform-skill.git /tmp/terraform-skill && mkdir -p ~/.claude/skills && cp -r /tmp/terraform-skill/skills/terraform-skill ~/.claude/skills/

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

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/antonbabenko/terraform-skill.git
  3. Create the skills directory: mkdir -p ~/.claude/skills
  4. Copy the whole skill folder (the references/ files carry most of the depth): cp -r terraform-skill/skills/terraform-skill ~/.claude/skills/
  5. Verify ~/.claude/skills/terraform-skill/ contains SKILL.md and a references/ directory.
  6. Restart Claude Code and try a prompt like "review this Terraform module" or "migrate my state to an S3 backend" — the skill should activate automatically.
  7. Optional: for semantic navigation, install terraform (or tofu) and terraform-ls on your PATH and run terraform init once in the project directory.
View source on GitHub ↗License: NOASSERTION