tofu

tofu is a skill for Claude Code from poindexter12/waypoint. It costs 80 tokens per session (948 once invoked), scanned A, original, MIT.

A reference and workflow guide for OpenTofu, an open-source tool that describes and manages infrastructure with configuration files. It covers HCL syntax, saved infrastructure state, reusable modules, providers, and Proxmox patterns.

In plain words
What is it for?
Use it when writing or reviewing .tf files, configuring providers, designing modules, migrating from Terraform, or running OpenTofu commands.
Why use it?
It helps you check configurations, preview infrastructure changes, manage saved resource records, and troubleshoot state problems before applying changes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: agent in frontmatter.

Part of the technologies plugin — 7 skills, 6 agents shipped together

Good fit Use it when writing or reviewing .tf files, configuring providers, designing modules, migrating from Terraform, or running OpenTofu commands.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/poindexter12/waypoint/tofu
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add poindexter12/waypoint --skill tofu
Clone the repo
git clone --depth 1 https://github.com/poindexter12/waypoint

Made for: Claude Code.

Or install technologies, the plugin that ships this one along with the rest of its 7 skills, 6 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for tofu

README.md
[![agentmods](https://agentmods.dev/badge/skills/poindexter12/waypoint/tofu/github.svg)](https://agentmods.dev/skills/poindexter12/waypoint/tofu)
Your own site
<a href="https://agentmods.dev/skills/poindexter12/waypoint/tofu"><img src="https://agentmods.dev/badge/skills/poindexter12/waypoint/tofu/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for tofu

Your own site · 80×15
<a href="https://agentmods.dev/skills/poindexter12/waypoint/tofu"><img src="https://agentmods.dev/badge/skills/poindexter12/waypoint/tofu.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 948 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00080 $0.00948
Opus 5 $0.00040 $0.00474
Sonnet 5 $0.00016 $0.00190
Haiku 4.5 $0.00008 $0.00095

Measured 10d ago against content hash 9e9a5618c7bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

tofu scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

technologies/skills/tofu/SKILL.md · 125 lines

How it starts

The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenTofu Skill

Infrastructure-as-code reference for OpenTofu configurations, state management, and provider patterns.

OpenTofu is the open-source fork of Terraform, maintained by the Linux Foundation. Commands and syntax are nearly identical to Terraform.

Quick Reference

# Core workflow
tofu init              # Initialize, download providers
tofu validate          # Syntax validation
tofu fmt -recursive    # Format HCL files
tofu plan              # Preview changes
tofu apply             # Apply changes

# Inspection
tofu state list                    # List resources in state
tofu state show <resource>         # Show resource details
tofu graph | dot -Tsvg > graph.svg # Dependency graph

# Debug
TF_LOG=DEBUG tofu plan 2>debug.log

Core Workflow

init → validate → fmt → plan → apply
  1. init: Download providers, initialize backend
  2. validate: Check syntax and configuration validity
  3. fmt: Ensure consistent formatting
  4. plan: Preview what will change (review carefully)
  5. apply: Execute changes

Terraform Migration

OpenTofu is a drop-in replacement for Terraform:

# Replace terraform with tofu in commands
terraform init  →  tofu init
terraform plan  →  tofu plan
terraform apply →  tofu apply

# State files are compatible
# Provider configurations work the same
# Most modules work without changes

Key differences:

  • Different binary name (tofu vs terraform)
  • Some newer Terraform features may not be available yet
  • Provider registry defaults differ (can be configured)

Reference Files

Load on-demand based on task:

Topic File When to Load
Troubleshooting troubleshooting.md Common errors, debugging
State state-management.md Backends, locking, operations
Modules module-design.md Module patterns, composition
Security security.md Secrets, state security
Migration migration.md Terraform → OpenTofu
Proxmox Gotchas proxmox/gotchas.md Critical provider issues
Proxmox Auth proxmox/authentication.md Provider config, API tokens
Proxmox VMs proxmox/vm-qemu.md proxmox_vm_qemu patterns

Read the full file on GitHub · 125 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 125 lines · 80 tokens per session scan A 9e9a5618c7bc

Subscribe to this mod's changes

tofu is a skill published in the GitHub repository poindexter12/waypoint (7 stars, last pushed 7mo ago), licensed MIT. It adds 80 tokens to every session and 948 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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