blue-team-defender

blue-team-defender is an agent for Claude Code from jassics/awesome-claude-security. It costs 48 tokens per session (503 once invoked), scanned A, original, GPL-3.0.

An agent that coordinates defensive cybersecurity work across detection engineering, incident response, threat hunting, and threat intelligence.

In plain words
What is it for?
Use it to plan or run broad blue-team operations, rather than a single security check.
Why use it?
It brings related defensive activities together when a security effort spans more than one specialty.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

Part of the blue-team plugin — 1 skill, 1 command, 1 agent shipped together

Good fit Use it to plan or run broad blue-team operations, rather than a single security check.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/jassics/awesome-claude-security/blue-team-defender
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/jassics/awesome-claude-security

Made for: Claude Code.

Or install blue-team, the plugin that ships this one along with the rest of its 1 skill, 1 command, 1 agent.

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-defender

README.md
[![agentmods](https://agentmods.dev/badge/agents/jassics/awesome-claude-security/blue-team-defender/github.svg)](https://agentmods.dev/agents/jassics/awesome-claude-security/blue-team-defender)
Your own site
<a href="https://agentmods.dev/agents/jassics/awesome-claude-security/blue-team-defender"><img src="https://agentmods.dev/badge/agents/jassics/awesome-claude-security/blue-team-defender/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for blue-team-defender

Your own site · 80×15
<a href="https://agentmods.dev/agents/jassics/awesome-claude-security/blue-team-defender"><img src="https://agentmods.dev/badge/agents/jassics/awesome-claude-security/blue-team-defender.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 503 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 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 5.1 $0.00048 $0.00503
Opus 5 $0.00024 $0.00251
Sonnet 5 $0.00010 $0.00101
Haiku 4.5 $0.00005 $0.00050

Measured 9d ago against content hash 391113f0996b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

blue-team-defender 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 9d 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/agents/blue-team-defender.md · 46 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 9d ago First seen · 46 lines · 48 tokens per session scan A 391113f0996b

Subscribe to this mod's changes

blue-team-defender is an agent published in the GitHub repository jassics/awesome-claude-security (6 stars, last pushed 1mo ago), licensed GPL-3.0. It adds 48 tokens to every session and 503 once invoked, about $0.0002 per session on Opus 5. 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 2026-08-31.

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