open-tofu | Alison's LLM Skills Marketplace | Alison's LLM Skills Marketplace

Files

SKILL.mdagentsreferences

Install

Install only this skill with npx skills

npx skills add alisonaquinas/llm-ci-dev --skill 'open-tofu' -g -y

Install the containing skill bundle

/plugin install ci-cd@llm-skills

Download open-tofu-skill.zip

This skill is bundled inside ci-cd. Use npx skills when you only want this skill, or install the bundle once to make every included skill available through the plugin marketplace flow. Browse the full skill bundle repository at github.com/alisonaquinas/llm-ci-dev.

Invoke

Invoke this skill after installation

/ci-cd:open-tofu

SKILL.md

name: open-tofu description: Plan, apply, and manage infrastructure with OpenTofu (community fork of Terraform). Use when tasks mention tofu commands, OpenTofu configuration, migration from Terraform, or the open-source Terraform alternative.

OpenTofu

Intent Router

Request	Reference	Load When
Install tool, first-time setup, tofuenv	`references/install-and-setup.md`	User needs to install OpenTofu or manage versions
Provider config, variables, backends	`references/configuration.md`	User needs provider blocks, variable files, or backend setup
CLI commands, workflows	`references/command-cookbook.md`	User needs init/plan/apply/destroy patterns or tofu-specific commands
Migrate from Terraform	`references/migrating-from-terraform.md`	User wants to switch from Terraform to OpenTofu

Quick Start

# 1. Initialize working directory (downloads providers)
tofu init

# 2. Preview changes (always run before apply)
tofu plan

# 3. Apply changes (requires confirmation)
tofu apply

# 4. Destroy infrastructure (DANGEROUS — requires confirmation)
tofu destroy

Key Differences from Terraform

Feature	OpenTofu	Terraform
Binary	`tofu`	`terraform`
License	MPL 2.0 (open source)	BSL 1.1 (source-available)
Registry	registry.opentofu.org	registry.terraform.io
Native testing	`tofu test` (built-in)	`terraform test` (1.6+)
Encryption at rest	Built-in state encryption	Not available
State compatibility	Compatible with TF state	—

Core Command Tracks

Initialize: tofu init — downloads providers, sets up backend
Validate & format: tofu validate, tofu fmt -recursive
Preview: tofu plan [-out=tofuplan] — no changes made
Apply: tofu apply [tofuplan] — creates/updates resources
Test: tofu test — run native HCL tests
Inspect state: tofu state list, tofu state show <resource>
Workspaces: tofu workspace list, tofu workspace select <name>

Safety Guardrails

Always run tofu plan before tofu apply — review the diff carefully.
tofu destroy is irreversible — confirm resource list before proceeding.
Never commit terraform.tfstate or .tfvars files containing secrets to version control.
Enable state locking on remote backends to prevent concurrent modifications.
OpenTofu's built-in state encryption adds an extra layer of protection.

# Inspect managed resources in state before making changes
tofu state list
tofu state show aws_instance.web

Workflow

Write or edit .tf configuration files (HCL is identical to Terraform).
Run tofu fmt to normalize formatting.
Run tofu validate to catch syntax errors.
Run tofu plan and review the proposed changes.
Run tofu apply only after reviewing the plan.
Commit .terraform.lock.hcl (or .opentofu.lock.hcl) but never state files.

Related Skills

terraform — HashiCorp's IaC tool; OpenTofu is a compatible fork
pulumi — IaC using general-purpose languages (TypeScript, Python, Go, C#)
ansible — configuration management and agentless automation
ci-architecture — integrating OpenTofu into CI/CD pipelines
aws — AWS CLI for inspecting resources managed by OpenTofu

References

references/install-and-setup.md
references/configuration.md
references/command-cookbook.md
references/migrating-from-terraform.md
Official docs: https://opentofu.org/docs
Provider registry: https://registry.opentofu.org
Migration guide: https://opentofu.org/docs/intro/migration/
Community blog: https://opentofu.org/blog