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Network Security Groups

Checked
aj-geddes·vlatest·security·MIT

Manage Azure Network Security Groups to control network traffic and enhance cloud resource protection.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add aj-geddes/useful-ai-prompts --skill network-security-groups -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

aj-geddes

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned aj-geddes/useful-ai-prompts at 3f5182cfd7.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
3f5182cfd7
Manifest
skills/network-security-groups/SKILL.md
Scanned
6 files, 536 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

Network Security Groups (NSGs) allow AI agents to define granular firewall rules for Azure virtual networks, controlling inbound and outbound traffic based on source IP, destination, port, and protocol. This capability enables automated enforcement of security policies to isolate resources and prevent unauthorized access within cloud infrastructure.

When to use it

  • Automating the creation of default deny-all rules for new virtual network subnets during provisioning.
  • Dynamically updating firewall allow-lists when a developer adds a new public-facing web server.
  • Restricting database access so that only specific application tier IPs can connect on port 3306 or 5432.
  • Implementing compliance checks to ensure no NSG rules permit traffic from untrusted IP ranges.

Key capabilities

  • Define inbound and outbound security rules for Azure virtual networks.
  • Specify source and destination IP addresses, prefixes, or service tags.
  • Filter traffic by protocol (TCP, UDP, ICMP) and port numbers.
  • Set priority levels to determine rule evaluation order when conflicts occur.
  • Enable or disable specific rules to toggle access instantly without redeployment.

Example prompts

  • "Create a network security group for my Azure VM that allows inbound SSH traffic from my home IP address 203.0.113.5 on port 22."
  • "Update the NSG attached to my database subnet to deny all outbound traffic except DNS and HTTPS."
  • "Generate a script to audit my virtual network's NSGs and list any rules that allow inbound access from 0.0.0.0/0 on high-risk ports."

Tips & gotchas

Ensure you understand the rule priority system, as Azure evaluates rules numerically from lowest to highest; lower numbers take precedence over higher ones. Always test rules in a staging environment first, as misconfigured NSGs can inadvertently lock you out of your virtual machines if you block management ports like RDP or SSH.