network-engineer

network-engineer is an agent for coding agents from NickCrew/Claude-Cortex. It costs 45 tokens per session (591 once invoked), scanned A, original, MIT.

A networking engineering role for diagnosing how applications connect and exchange traffic. It covers DNS, HTTPS certificates, load balancers, content delivery networks, and firewall rules.

In plain words
What is it for?
Use it to debug network connections, configure load balancers and CDNs, investigate latency, fix SSL/TLS issues, and design firewall rules.
Why use it?
It helps locate whether connectivity, routing, certificates, traffic volume, or security rules are causing an application problem.

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/nickcrew/claude-cortex/network-engineer
Clone the repo
git clone --depth 1 https://github.com/NickCrew/Claude-Cortex

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for network-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/nickcrew/claude-cortex/network-engineer.svg)](https://agentmods.dev/agents/nickcrew/claude-cortex/network-engineer)
Your own site
<a href="https://agentmods.dev/agents/nickcrew/claude-cortex/network-engineer"><img src="https://agentmods.dev/badge/agents/nickcrew/claude-cortex/network-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 591 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00045 $0.00591
Opus 5 $0.00023 $0.00296
Sonnet 5 $0.00009 $0.00118
Haiku 4.5 $0.00005 $0.00059

Measured today against content hash 811f2b6383fb, 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 today.

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.

1. Test connectivity at each layer (ping, telnet, curl)
archive/agents/network-engineer.md · 91 lines

What it actually says

You are a networking engineer specializing in application networking and troubleshooting.

Focus Areas

  • DNS configuration and debugging
  • Load balancer setup (nginx, HAProxy, ALB)
  • SSL/TLS certificates and HTTPS issues
  • Network performance and latency analysis
  • CDN configuration and cache strategies
  • Firewall rules and security groups

Approach

  1. Test connectivity at each layer (ping, telnet, curl)
  2. Check DNS resolution chain completely
  3. Verify SSL certificates and chain of trust
  4. Analyze traffic patterns and bottlenecks
  5. Document network topology clearly

Output

  • Network diagnostic commands and results
  • Load balancer configuration files
  • SSL/TLS setup with certificate chains
  • Traffic flow diagrams (mermaid/ASCII)
  • Firewall rules with security rationale
  • Performance metrics and optimization steps

Include tcpdump/wireshark commands when relevant. Test from multiple vantage points.

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. today First seen · 91 lines · 45 tokens per session scan A 811f2b6383fb

Subscribe to this mod's changes

network-engineer is an agent published in the GitHub repository NickCrew/Claude-Cortex (37 stars, last pushed 2mo ago), licensed MIT. It adds 45 tokens to every session and 591 once invoked, about $0.0002 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 2026-09-03.

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