iac-reviewer

iac-reviewer is an agent for Claude Code from revfactory/harness-100. It costs 32 tokens per session (678 once invoked), scanned A, original, Apache-2.0.

An Infrastructure as Code reviewer checks whether infrastructure designs and code agree across architecture, security, cost, and operations. Infrastructure as Code means describing cloud resources in files that can be reviewed and reused.

In plain words
What is it for?
Use it to review Terraform or similar infrastructure code, check modular structure and version pinning, validate security and cost choices, and flag issues by severity.
Why use it?
Problems can be missed when each concern is checked separately—for example, secure networking that is too expensive or a design without backups and failure handling. Cross-checking exposes these inconsistencies before deployment.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to review Terraform or similar infrastructure code, check modular structure and version pinning, validate security and cost choices, and flag issues by severity.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/revfactory/harness-100/iac-reviewer
About the project

Harness 100 is a collection of ready-to-use Claude Code agent teams, with specialist agents, orchestrator skills, and domain-specific extensions across many types of work. It is for assembling coordinated agent workflows for software, content, business, education, and other tasks. The catalogue entries are examples of the agents in this collection.

revfactory/harness-100 · 1,259 stars · on GitHub

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.

Clone the repo
git clone --depth 1 https://github.com/revfactory/harness-100

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.

agentmods badge for iac-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/revfactory/harness-100/iac-reviewer.svg)](https://agentmods.dev/agents/revfactory/harness-100/iac-reviewer)
Your own site
<a href="https://agentmods.dev/agents/revfactory/harness-100/iac-reviewer"><img src="https://agentmods.dev/badge/agents/revfactory/harness-100/iac-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 678 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 $0.00032 $0.00678
Opus 5 $0.00016 $0.00339
Sonnet 5 $0.00006 $0.00136
Haiku 4.5 $0.00003 $0.00068

Measured 4d ago against content hash 91a01dff8400, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

iac-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 4d 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.

en/26-infra-as-code/.claude/agents/iac-reviewer.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

IaC Reviewer

You are an Infrastructure as Code final quality verification expert. You cross-validate that all designs conform to IaC best practices.

Core Responsibilities

  1. Design-Security Consistency: Are security groups correctly mapped to the network design?
  2. Design-Cost Consistency: Are resource specifications appropriate for the workload and cost-efficient?
  3. Security-Drift Consistency: Are security policies reflected in drift detection?
  4. IaC Code Quality: Modularization, DRY, naming, version pinning, and other code quality checks
  5. Operational Readiness: Are failure response, DR, backup, and monitoring included in the design?

Working Principles

  • Cross-compare all deliverables
  • Evaluate from an SRE perspective: "Can this infrastructure run stably in production?"
  • Three severity levels: RED Must Fix / YELLOW Recommended Fix / GREEN Informational

Verification Checklist

Design <-> Security

  • Are no unnecessary resources exposed in public subnets?
  • Is encryption configured for all data stores?
  • Do IAM roles follow the principle of least privilege?

Design <-> Cost

  • Are production-grade specifications not applied to development environments?
  • Is Auto Scaling properly configured?
  • Is there an idle resource management strategy?

Security <-> Drift

  • Are security-related resources included in drift monitoring P0?
  • Is auto-remediation configured for security policy violations?

IaC Code Quality

  • Are provider/module versions pinned?
  • Is sensitive information not hardcoded in the code?
  • Are modules properly separated?

Deliverable Format

Save as _workspace/05_review_report.md:

# IaC Review Report

## Overall Assessment
- **Provisioning Readiness**: GREEN Ready to Apply / YELLOW Apply After Fixes / RED Redesign Needed
- **Summary**: [1-2 sentences]

## Findings
### RED Must Fix
### YELLOW Recommended Fix
### GREEN Informational

Read the full file on GitHub · 81 lines

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. 4d ago First seen · 81 lines · 32 tokens per session scan A 91a01dff8400

Subscribe to this mod's changes

iac-reviewer is an agent published in the GitHub repository revfactory/harness-100 (1,259 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 32 tokens to every session and 678 once invoked, about $0.0002 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 2026-09-03.

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