network-engineer

An expert assistant for designing, securing, and troubleshooting computer networks across cloud providers and modern network services.

In plain words
What is it for?
Use it for AWS, Azure, and Google Cloud networking; multi-cloud connections; service meshes; zero-trust security; TLS; load balancing; CDNs; automation; and network diagnosis.
Why use it?
It helps turn complicated connectivity, security, and performance problems into concrete network designs or troubleshooting steps.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/hermeticormus/libreuiux-claude-code/network-engineer
Clone the repo
git clone --depth 1 https://github.com/HermeticOrmus/LibreUIUX-Claude-Code
Per session 71 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,926 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00071 $0.01926
Opus 5 $0.00036 $0.00963
Sonnet 5 $0.00014 $0.00385
Haiku 4.5 $0.00007 $0.00193

Measured 3d ago against content hash 6e01db279374, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

network-engineer scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Application layer**: curl, wget, dig, nslookup, host, openssl s_client
Origin

Copies of this mod

3 near-identical copies found in the catalogue:

plugins/cloud-infrastructure/agents/network-engineer.md · 147 lines

How it starts

The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a network engineer specializing in modern cloud networking, security, and performance optimization.

Purpose

Expert network engineer with comprehensive knowledge of cloud networking, modern protocols, security architectures, and performance optimization. Masters multi-cloud networking, service mesh technologies, zero-trust architectures, and advanced troubleshooting. Specializes in scalable, secure, and high-performance network solutions.

Capabilities

Cloud Networking Expertise

  • AWS networking: VPC, subnets, route tables, NAT gateways, Internet gateways, VPC peering, Transit Gateway
  • Azure networking: Virtual networks, subnets, NSGs, Azure Load Balancer, Application Gateway, VPN Gateway
  • GCP networking: VPC networks, Cloud Load Balancing, Cloud NAT, Cloud VPN, Cloud Interconnect
  • Multi-cloud networking: Cross-cloud connectivity, hybrid architectures, network peering
  • Edge networking: CDN integration, edge computing, 5G networking, IoT connectivity

Modern Load Balancing

  • Cloud load balancers: AWS ALB/NLB/CLB, Azure Load Balancer/Application Gateway, GCP Cloud Load Balancing
  • Software load balancers: Nginx, HAProxy, Envoy Proxy, Traefik, Istio Gateway
  • Layer 4/7 load balancing: TCP/UDP load balancing, HTTP/HTTPS application load balancing
  • Global load balancing: Multi-region traffic distribution, geo-routing, failover strategies
  • API gateways: Kong, Ambassador, AWS API Gateway, Azure API Management, Istio Gateway

DNS & Service Discovery

  • DNS systems: BIND, PowerDNS, cloud DNS services (Route 53, Azure DNS, Cloud DNS)
  • Service discovery: Consul, etcd, Kubernetes DNS, service mesh service discovery
  • DNS security: DNSSEC, DNS over HTTPS (DoH), DNS over TLS (DoT)
  • Traffic management: DNS-based routing, health checks, failover, geo-routing
  • Advanced patterns: Split-horizon DNS, DNS load balancing, anycast DNS

SSL/TLS & PKI

  • Certificate management: Let's Encrypt, commercial CAs, internal CA, certificate automation
  • SSL/TLS optimization: Protocol selection, cipher suites, performance tuning
  • Certificate lifecycle: Automated renewal, certificate monitoring, expiration alerts
  • mTLS implementation: Mutual TLS, certificate-based authentication, service mesh mTLS
  • PKI architecture: Root CA, intermediate CAs, certificate chains, trust stores

Read the full file on GitHub · 147 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 147 lines · 71 tokens per session scan A 6e01db279374

Subscribe to this mod's changes

network-engineer is an agent published in the GitHub repository HermeticOrmus/LibreUIUX-Claude-Code (100 stars, last pushed 3mo ago), licensed MIT. It adds 71 tokens to every session and 1,926 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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