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terraform-azurerm-set-diff-analyzer

Analyze Terraform plan JSON to distinguish order-only Set-type diffs from actual AzureRM resource changes.

1|Updated Feb 23, 2026
Search Tags:#diff analysis#ci/cd#azure#terraform#plan analysis#set attributes
One-click install
npx skills add https://github.com/Gabeujin/workspace-init-mcp --skill terraform-azurerm-set-diff-analyzer-gabeujin
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: terraform-azurerm-set-diff-analyzer
Source: https://github.com/Gabeujin/workspace-init-mcp/tree/main/awesome/skills/terraform-azurerm-set-diff-analyzer
Command: npx skills add https://github.com/Gabeujin/workspace-init-mcp --skill terraform-azurerm-set-diff-analyzer-gabeujin

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps you distinguish between actual changes and "false-positive diffs" in Terraform plans for AzureRM resources, specifically those caused by the ordering of elements within Set-type attributes.

Core Features & Use Cases

  • Identify Order-Only Diffs: Automatically detects changes in Set-type attributes (like security_rule in NSGs or backend_address_pool in App Gateways) that are merely due to element reordering and have no real impact.
  • Filter Spurious Changes: Reduces noise in terraform plan output, making reviews faster and more accurate.
  • Use Case: When reviewing a Terraform plan for an Azure Application Gateway, you see that all backend_address_pool elements are marked as changed. This Skill can confirm if this is just an order change or if an actual backend address was added/removed.

Quick Start

Use the terraform-azurerm-set-diff-analyzer skill to analyze the terraform plan JSON file named 'plan.json'.

Frequently Asked Questions about terraform-azurerm-set-diff-analyzer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Why does my Terraform plan show changes for Azure Application Gateway backend_address_pool when I didn't modify any addresses?▼

Terraform plan shows changes for Azure Application Gateway backend_address_pool because the AzureRM provider often detects order-only diffs in Set-type attributes. This analyzer filters those spurious changes by verifying if elements were merely reordered.

How do I filter out false-positive diffs in Terraform plan JSON for Azure resources?▼

You filter false-positive diffs in Terraform plan JSON by running this analyzer against the file. It parses the plan output to detect and exclude order-only changes in Set-type attributes, reducing noise for faster reviews.

What is an order-only diff in Set-type attributes for AzureRM Terraform resources?▼

An order-only diff in Set-type attributes occurs when Terraform detects element reordering as a change, despite no actual modifications. This happens frequently with AzureRM resources like Network Security Groups and Load Balancers.

Does the AzureRM Terraform set diff analyzer support Network Security Group security_rule changes?▼

Yes, the AzureRM Terraform set diff analyzer supports Network Security Group security_rule changes. It specifically evaluates Set-type attributes for NSGs, Application Gateways, and Load Balancers to confirm whether changes are actual modifications.

Do I need Python to analyze Terraform plan JSON for AzureRM set attribute diffs?▼

Yes, you need Python 3.8 or higher installed to execute the analyzer script. It processes the Terraform plan JSON file locally to differentiate between actual resource modifications and order-only attribute changes.

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