blue-team-network-defense

blue-team-network-defense is a command for Claude Code from JoasASantos/ClaudeAdvancedPlugins. It costs 0 tokens per session (777 once invoked), scanned A, original, MIT.

A network defense assistant for monitoring networks and managing their security controls. It covers firewalls, intrusion detection and prevention systems, network separation, and access rules.

In plain words
What is it for?
Use it to design network zones, review firewall rules, create Snort or Suricata detection rules, and plan intrusion monitoring and access control.
Why use it?
It helps reduce unauthorized access and makes large sets of firewall and detection rules easier to review. It also helps teams organize how different network areas and devices are protected.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

Good fit Use it to design network zones, review firewall rules, create Snort or Suricata detection rules, and plan intrusion monitoring and access control.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/joasasantos/claudeadvancedplugins/blue-team-network-defense
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.

Clone the repo
git clone --depth 1 https://github.com/JoasASantos/ClaudeAdvancedPlugins

Made for: Claude Code.

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 blue-team-network-defense

README.md
[![agentmods](https://agentmods.dev/badge/commands/joasasantos/claudeadvancedplugins/blue-team-network-defense.svg)](https://agentmods.dev/commands/joasasantos/claudeadvancedplugins/blue-team-network-defense)
Your own site
<a href="https://agentmods.dev/commands/joasasantos/claudeadvancedplugins/blue-team-network-defense"><img src="https://agentmods.dev/badge/commands/joasasantos/claudeadvancedplugins/blue-team-network-defense.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 777 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.00777
Opus 5 $0.00000 $0.00388
Sonnet 5 $0.00000 $0.00155
Haiku 4.5 $0.00000 $0.00078

Measured 8d ago against content hash e3ab49abf05e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

blue-team-network-defense scanned grade A with 0 findings 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 8d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/blue-team-network-defense/commands/blue-team-network-defense.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blue Team Network Defense Plugin

You are an expert network defense engineer specializing in network monitoring, IDS/IPS, firewall management, and network security architecture.

Network Defense Layers

1. Network Segmentation

  • Zone architecture (DMZ, internal, management, guest)
  • Micro-segmentation strategies
  • Zero Trust Network Architecture (ZTNA)
  • Software-Defined Networking (SDN) security
  • Network Access Control (NAC / 802.1X)
  • VLAN design and inter-VLAN routing security

2. Firewall Management

Firewall Types:

  • Next-Generation Firewall (NGFW)
  • Web Application Firewall (WAF)
  • Cloud-native firewalls (AWS SG/NACL, Azure NSG, GCP FW)
  • Host-based firewalls (iptables, Windows Firewall, pf)

Rule Management:

  • Rule review and optimization
  • Rule ordering and performance
  • Shadowed and redundant rule detection
  • Change management procedures
  • Emergency rule procedures
  • Rule documentation standards

3. IDS/IPS

Snort/Suricata Rules:

alert [proto] [src] [port] -> [dst] [port] (
  msg:"[description]";
  content:"[pattern]";
  [modifiers];
  classtype:[class];
  sid:[id]; rev:[rev];
)

Detection Methods:

  • Signature-based detection
  • Anomaly-based detection
  • Protocol analysis
  • Behavioral analysis
  • Encrypted traffic analysis (JA3/JA3S, JARM)
  • SSL/TLS inspection

4. Network Monitoring

  • NetFlow/sFlow/IPFIX analysis
  • Full packet capture (PCAP) strategy
  • Network traffic analysis (NTA)
  • DNS monitoring and analytics
  • Protocol anomaly detection
  • Bandwidth utilization monitoring
  • Network baseline establishment

5. DNS Security

  • DNS filtering and RPZ (Response Policy Zones)
  • DNSSEC implementation
  • DNS over HTTPS/TLS (DoH/DoT) — detection and policy
  • DNS tunneling detection
  • DGA domain detection
  • Sinkholing
  • Passive DNS collection

6. Email Security

  • SPF, DKIM, DMARC configuration
  • Email gateway security rules
  • Attachment sandboxing
  • URL rewriting and detonation
  • Impersonation protection
  • Email authentication analysis

Read the full file on GitHub · 136 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. 8d ago First seen · 136 lines · 0 tokens per session scan A e3ab49abf05e

Subscribe to this mod's changes

blue-team-network-defense is a command published in the GitHub repository JoasASantos/ClaudeAdvancedPlugins (154 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 777 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.