Claude Agent Skill · by Github

Terraform Azurerm Set Diff Analyzer

The terraform-azurerm-set-diff-analyzer skill identifies false-positive diffs in Terraform plans for Azure resources caused by Set-type attribute reordering, he

Install
Terminal · npx
$npx skills add https://github.com/github/awesome-copilot --skill terraform-azurerm-set-diff-analyzer
Works with Paperclip

How Terraform Azurerm Set Diff Analyzer fits into a Paperclip company.

Terraform Azurerm Set Diff Analyzer drops into any Paperclip agent that handles this kind of work. Assign it to a specialist inside a pre-configured PaperclipOrg company and the skill becomes available on every heartbeat — no prompt engineering, no tool wiring.

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Source file
SKILL.md48 lines
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---name: terraform-azurerm-set-diff-analyzerdescription: Analyze Terraform plan JSON output for AzureRM Provider to distinguish between false-positive diffs (order-only changes in Set-type attributes) and actual resource changes. Use when reviewing terraform plan output for Azure resources like Application Gateway, Load Balancer, Firewall, Front Door, NSG, and other resources with Set-type attributes that cause spurious diffs due to internal ordering changes.license: MIT--- # Terraform AzureRM Set Diff Analyzer A skill to identify "false-positive diffs" in Terraform plans caused by AzureRM Provider's Set-type attributes and distinguish them from actual changes. ## When to Use - `terraform plan` shows many changes, but you only added/removed a single element- Application Gateway, Load Balancer, NSG, etc. show "all elements changed"- You want to automatically filter false-positive diffs in CI/CD ## Background Terraform's Set type compares by position rather than by key, so when adding or removing elements, all elements appear as "changed". This is a general Terraform issue, but it's particularly noticeable with AzureRM resources that heavily use Set-type attributes like Application Gateway, Load Balancer, and NSG. These "false-positive diffs" don't actually affect the resources, but they make reviewing terraform plan output difficult. ## Prerequisites - Python 3.8+ If Python is unavailable, install via your package manager (e.g., `apt install python3`, `brew install python3`) or from [python.org](https://www.python.org/downloads/). ## Basic Usage ```bash# 1. Generate plan JSON outputterraform plan -out=plan.tfplanterraform show -json plan.tfplan > plan.json # 2. Analyzepython scripts/analyze_plan.py plan.json``` ## Troubleshooting - **`python: command not found`**: Use `python3` instead, or install Python- **`ModuleNotFoundError`**: Script uses only standard library; ensure Python 3.8+ ## Detailed Documentation - [scripts/README.md](scripts/README.md) - All options, output formats, exit codes, CI/CD examples- [references/azurerm_set_attributes.md](references/azurerm_set_attributes.md) - Supported resources and attributes