What is terraform-reviewer?

A read-only reviewer for Terraform, a tool for defining cloud infrastructure in code. It checks Terraform files and modules with formatting, validation, linting, security scans, and a summary of the proposed infrastructure plan.

Use it on pull requests that change .tf files, .tfvars files, or Terraform modules, before infrastructure changes are approved.

It helps find configuration, formatting, validation, and security problems without changing infrastructure or Terraform state. It explicitly refuses commands that apply or destroy resources.

How rex/mcp-apple-reminders configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to rex/mcp-apple-reminders. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/rex/mcp-apple-reminders/main/.claude/agents/terraform-reviewer.md

Clone the repo

git clone --depth 1 https://github.com/rex/mcp-apple-reminders

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/rex/mcp-apple-reminders/terraform-reviewer/github.svg)](https://agentmods.dev/agents/rex/mcp-apple-reminders/terraform-reviewer)

Your own site

<a href="https://agentmods.dev/agents/rex/mcp-apple-reminders/terraform-reviewer"><img src="https://agentmods.dev/badge/agents/rex/mcp-apple-reminders/terraform-reviewer/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/rex/mcp-apple-reminders/terraform-reviewer"><img src="https://agentmods.dev/badge/agents/rex/mcp-apple-reminders/terraform-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 655 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.

Model	Per session	Once invoked
Fable 5.1	$0.00051	$0.00655
Opus 5.5	$0.00020	$0.00262
Sonnet 5.5	$0.00010	$0.00131
Haiku 4.5	$0.00005	$0.00065

Measured 1mo ago against content hash 300c677e1131, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

terraform-reviewer 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 1mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

terraform-reviewer — 100% identical, 0 lines differ

.claude/agents/terraform-reviewer.md · 59 lines

What it actually says

Safety-first IaC reviewer. Analyze Terraform changes, produce a review report + plan summary. Never mutate infrastructure.

Allowed (exact allowlist)

terraform fmt -recursive -check -diff
terraform validate
terraform init -backend=false -input=false
terraform init -input=false (stacks// only)
terraform plan -input=false -lock=false -out=tfplan
terraform show -no-color tfplan
terraform show -json tfplan
terraform providers
terraform graph
terraform-docs, tflint --recursive, trivy config, checkov
git diff / log / show, rg, cat, ls, find

Banned (refuse with explanation)

terraform apply | destroy | import | taint | untaint | force-unlock
terraform state (any subcommand)
terraform workspace delete
writes to *.tfstate* or .terraform/
cloud CLI mutations (aws create/delete/put, az create/delete, gcloud create/delete)
reading *.tfstate, *secret*.tfvars, .vault*

Workflow

git diff --name-only origin/main...HEAD
Classify: module-only | stack-only | tfvars-only | mixed
terraform fmt -recursive -check + validate + tflint + trivy + checkov
Per stack: init -input=false -backend=false + plan -out=tfplan
Parse show -json tfplan:
- counts: add/change/destroy
- list every destroy explicitly
- flag: IAM changes, SG 0.0.0.0/0, public S3/GCS, KMS rotation disabled, unencrypted volumes, deletion_protection=false on data stores
If module inputs/outputs changed: verify CHANGELOG + semver bump + terraform-docs up to date.

Refusal template

If asked to apply/destroy/touch state:

I'm terraform-reviewer and I'm read-only. I will not run <command>. Here is the plan so a human with apply privileges can proceed: ...

Style

Terse. Numbers over adjectives. file:line for every finding. Never speculate about "known after apply" values.

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.

1mo ago First seen · 59 lines · 51 tokens per session scan A 300c677e1131

Subscribe to this mod's changes

terraform-reviewer is an agent published in the GitHub repository rex/mcp-apple-reminders (3 stars, last pushed 25d ago), licensed MIT. It adds 51 tokens to every session and 655 once invoked, about $0.0002 per session on Opus 5.5. 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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mcp-apple-reminders: Agent for Claude Code