Azure Nat Gateway Agent Skill

Expert knowledge for Azure NAT Gateway development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, and deployment. Use when managing SNAT ports, outbound IPs, flow logs/metrics, Standard vs StandardV2, or Azure Firewall egress, and other Azure NAT Gateway related development tasks. Not for Azure Virtual Network (use azure-virtual-network), Azure Load Balancer (use azure-load-balancer), Azure Virtual WAN (use azure-virtual-wan), Azure VPN Gateway (use azure-vpn-gateway).

2k tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

681

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/MicrosoftDocs/Agent-Skills --skill azure-nat-gateway

The instruction itself

11 sections, as written by the author

Azure NAT Gateway Skill

This skill provides expert guidance for Azure NAT Gateway. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

> IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g., L35-L120), use read_file with the specified lines. For categories with file links (e.g., security.md), use read_file on the linked reference file

> IMPORTANT for Agent: If metadata.generated_at is more than 3 months old, suggest the user pull the latest version from the repository. If mcp_microsoftdocs tools are not available, suggest the user install it: Installation Guide

This skill requires network access to fetch documentation content:

Preferred: Use mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.
Fallback: Use fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.

Category Index

| Category | Lines | Description |

|----------|-------|-------------|

| Troubleshooting | L36-L40 | Diagnosing and fixing NAT Gateway issues: reading flow logs, resolving misconfigurations, connectivity failures with Azure services, and outbound internet connection problems. |

| Best Practices | L41-L45 | Guidance on reducing SNAT port exhaustion and optimizing outbound connectivity patterns when using Azure NAT Gateway. |

| Decision Making | L46-L52 | Guidance on choosing NAT Gateway Standard vs StandardV2 SKUs and step-by-step migration of existing outbound access and gateways to StandardV2. |

| Architecture & Design Patterns | L53-L58 | Designing VNETs with NAT Gateway, choosing patterns for outbound connectivity, and scaling/combining NAT Gateway with Azure Firewall for secure, high-throughput egress traffic. |

| Limits & Quotas | L59-L63 | NAT Gateway limits, quotas, and behaviors: SNAT port allocation, connection scaling, IP/VM limits, per-subscription caps, and FAQs on throughput and high-connection scenarios. |

| Security | L64-L68 | Security best practices for NAT Gateway: hardening design, minimizing exposure, managing outbound IPs, monitoring traffic, and integrating with NSGs, firewalls, and other Azure security controls. |

| Configuration | L69-L77 | Configuring NAT Gateway and IPs, enabling/using flow logs, monitoring with metrics/logs and alerts, and deploying NAT Gateway V2 via ARM, Bicep, or Terraform. |

| Deployment | L78-L82 | Guides for redeploying NAT Gateway after cross-region moves and migrating VM outbound traffic from public IPs to use NAT Gateway |

Troubleshooting

| Topic | URL |

|-------|-----|

| Monitor and troubleshoot with NAT Gateway flow logs | https://learn.microsoft.com/en-us/azure/nat-gateway/monitor-nat-gateway-flow-logs |

Best Practices

| Topic | URL |

|-------|-----|

| Optimize SNAT usage with Azure NAT Gateway | https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-snat |

Decision Making

| Topic | URL |

|-------|-----|

| Migrate Azure NAT Gateway from Standard to StandardV2 | https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-v2-migrate |

| Choose between Azure NAT Gateway Standard SKUs | https://learn.microsoft.com/en-us/azure/nat-gateway/nat-sku |

| Migrate Azure outbound access to NAT Gateway | https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-migrate-outbound-nat |

Architecture & Design Patterns

| Topic | URL |

|-------|-----|

| Design Azure virtual networks with NAT Gateway | https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-design |

| Scale outbound traffic with NAT Gateway and Azure Firewall | https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-hub-spoke-nat-firewall |

Limits & Quotas

| Topic | URL |

|-------|-----|

| Azure NAT Gateway FAQ with limits and behaviors | https://learn.microsoft.com/en-us/azure/nat-gateway/faq |

Security

| Topic | URL |

|-------|-----|

| Apply security best practices to Azure NAT Gateway | https://learn.microsoft.com/en-us/azure/nat-gateway/secure-nat-gateway |

Configuration

| Topic | URL |

|-------|-----|

| Manage Azure NAT Gateway configuration and IPs | https://learn.microsoft.com/en-us/azure/nat-gateway/manage-nat-gateway |

| Reference Azure NAT Gateway monitoring metrics and logs | https://learn.microsoft.com/en-us/azure/nat-gateway/monitor-nat-gateway-reference |

| Enable and use StandardV2 NAT Gateway flow logs | https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-flow-logs |

| Configure metrics and alerts for Azure NAT Gateway | https://learn.microsoft.com/en-us/azure/nat-gateway/nat-metrics |

| Deploy NAT Gateway V2 using ARM, Bicep, or Terraform | https://learn.microsoft.com/en-us/azure/nat-gateway/quickstart-create-nat-gateway-v2-templates |

Deployment

| Topic | URL |

|-------|-----|

| Redeploy NAT gateway after cross-region resource moves | https://learn.microsoft.com/en-us/azure/nat-gateway/region-move-nat-gateway |

| Move VM public IP outbound traffic to NAT Gateway | https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-migrate-ilip-nat |

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How to use it

Copy the folder

Take microsoftdocs/azure-nat-gateway from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.