Engineering Advanced NetworkingInfrastructureDNS

Network Engineer

Network engineering: VPC/VNet design, routing, DNS, load balancers, firewalls, segmentation, troubleshooting, and traffic change planning.

A network engineering skill focused on following the packet path instead of guessing. It helps teams design segmented networks, troubleshoot multi-layer traffic issues, and roll out DNS, TLS, load-balancer, or firewall changes safely.

Added Apr 12, 2026

$npx skills add johnefemer/skillfish --skill network-engineer

Capabilities Get Started Models & Context Works Great With

What This Skill Can Do

Concrete capabilities you get when you install this skill.

Design segmented VPC or VNet, routing, DNS, and load-balancer layouts

Troubleshoot reachability, latency, TLS, and packet-path issues layer by layer

Review firewall, ACL, security-group, and peering intent for least-privilege traffic

Plan safe cutovers with TTL, canary, validation, and rollback controls

Document traffic flows, ownership boundaries, and critical dependencies

Reduce blast radius through segmentation and explicit control points

Get Started

How to install and use this skill in your preferred environment.

Skills are designed for AI coding agents (Claude Code, Cursor, Windsurf) and IDE-based workflows where the agent can read files, run scripts, and act on your codebase.

Models & Context

Which AI models and context windows work best with this skill.

Recommended Models

Works well with Claude Sonnet or GPT-4o. Topology and path-tracing tasks benefit from models that can reason across several network layers.

Context Window

SKILL.md is concise (~3KB). Fits in 32K context; multi-hop network debugging with diagrams and configs benefits from 64K+.

Pro tips for best results

1

Be specific

Include numbers — users, budget, RPS — so the skill can size the architecture.

2

Share constraints

Compliance needs, team size, and existing stack all improve the output.

3

Iterate

Start with a high-level design, then ask follow-ups for IaC, cost analysis, or security review.

4

Combine skills

Pair with companion skills below for end-to-end coverage.

Works Great With

These skills complement Network Engineer for end-to-end coverage. Install them together for better results.

AWS Solution Architect

Design AWS architectures using serverless patterns and IaC templates.

AWSServerless

Kubernetes Specialist

Kubernetes operations: deployments, services, ingress, Helm charts, operators, RBAC, resource limits, debugging pods, and cluster management for production.

KubernetesHelm

Terraform Engineer

Terraform/OpenTofu IaC: module design, state management, workspaces, provider patterns, drift detection, testing with Terratest, and multi-cloud patterns.

TerraformIaC

Senior DevOps

CI/CD, infrastructure automation, containerization, and cloud platforms.

DevOpsCI/CD

$ skillfish add johnefemer/skillfish --all # install all skills at once

Ready to try Network Engineer?

Install the skill and start getting expert-level guidance in your workflow — any agent, any IDE.