Source profileQuality 80/100Review permissions

github/awesome-copilot/skills/terraform-azurerm-set-diff-analyzer/SKILL.md

terraform-azurerm-set-diff-analyzer

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.

Source repository stars: 37,126
Declared platforms: 0
Static risk flags: 1
Last source update: 2026-07-28
Source checked: 2026-07-28

Decision Compatibility Install Workflow Permissions Evidence Source

Decision brief

What it does—and where it fits

A skill to identify "false-positive diffs" in Terraform plans caused by AzureRM Provider's Set-type attributes and distinguish them from actual changes.

Best for

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

Not for

python: command not found: Use python3 instead, or install Python
ModuleNotFoundError: Script uses only standard library; ensure Python 3.8+

Compatibility matrix

Platform support, with evidence labels

Platform	Status	Evidence	What to check
Codex	Not declared	No explicit evidence	Portability before use
Claude Code	Not declared	No explicit evidence	Portability before use
Cursor	Not declared	No explicit evidence	Portability before use
Gemini CLI	Not declared	No explicit evidence	Portability before use

Open the compatibility checker

Installation

Inspect first. Install second.

The source command is displayed only when detected. A safe inspection prompt is always available so your agent can explain every action before execution.

Source-detected install commandSource

npx skills add https://github.com/github/awesome-copilot --skill "skills/terraform-azurerm-set-diff-analyzer"

Safe inspection promptEditorial

Inspect the Agent Skill "terraform-azurerm-set-diff-analyzer" from https://github.com/github/awesome-copilot/blob/9933dcad5be5caeb288cebcd370eeeb2fc2f1685/skills/terraform-azurerm-set-diff-analyzer/SKILL.md at commit 9933dcad5be5caeb288cebcd370eeeb2fc2f1685. List every install step, command, network request, credential, file read/write, external action, and rollback step. Explain whether it fits my task. Do not install or execute anything until I approve.

Workflow

What the source asks the agent to do

01
Basic Usage
Review the “Basic Usage” section in the pinned source before continuing.
Review and apply the “Basic Usage” source section.
02
When to Use
terraform plan shows many changes, but you only added/removed a single element
terraform plan shows many changes, but you only added/removed a single elementApplication Gateway, Load Balancer, NSG, etc. show "all elements changed"You want to automatically filter false-positive diffs in CI/CD
03
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 G…
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 resou…These "false-positive diffs" don't actually affect the resources, but they make reviewing terraform plan output difficult.
04
Prerequisites
If Python is unavailable, install via your package manager (e.g., apt install python3, brew install python3) or from python.org.
Python 3.8+If Python is unavailable, install via your package manager (e.g., apt install python3, brew install python3) or from python.org.

Permission review

Static risk signals and limitations

Runs scripts

medium · line 31

The documentation asks the agent to run terminal commands or scripts.

python scripts/analyze_plan.py plan.json

Evidence record

Why each signal appears

EvidenceSourceComputedTestedEditorial

Signal	Value	Evidence type	Meaning
Quality score	80/100	Computed	Documentation, specificity, maintenance, and trust rules
Repository stars	37,126	Source	Repository attention, not individual Skill quality
Compatibility	0 platforms	Source	Declared in the catalog source record
Usage guide	automated source guide	Editorial	Generated or reviewed according to the visible evidence level

Pinned source

Provenance and original SKILL.md

Repository: github/awesome-copilot
Skill path: skills/terraform-azurerm-set-diff-analyzer/SKILL.md
Commit: 9933dcad5be5caeb288cebcd370eeeb2fc2f1685
License: MIT
Collected: 2026-07-28
Default branch: main

View the original SKILL.md

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.

Basic Usage

# 1. Generate plan JSON output
terraform plan -out=plan.tfplan
terraform show -json plan.tfplan > plan.json

# 2. Analyze
python 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 - All options, output formats, exit codes, CI/CD examples
references/azurerm_set_attributes.md - Supported resources and attributes

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