security-engineer

A security-review agent for examining software, infrastructure, secrets, access rules, dependencies, and delivery pipelines for security risks.

In plain words
What is it for?
It supports threat modelling, dependency checks, secrets management, IAM policy design, DevSecOps security, and reviews of bare-metal or edge infrastructure.
Why use it?
It helps identify weaknesses and define protections before they lead to a breach or unsafe deployment.

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/mcleo-d/claude-agents/security-engineer
Clone the repo
git clone --depth 1 https://github.com/mcleo-d/claude-agents
Per session 62 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,137 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 $0.00062 $0.01137
Opus 5 $0.00031 $0.00568
Sonnet 5 $0.00012 $0.00227
Haiku 4.5 $0.00006 $0.00114

Measured 2d ago against content hash cae9ffdd47aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

security-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 2d 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.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

**Parameters:** `<SSH_HOST>`. Requires sudo access and Docker running.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

agents/security-engineer.md · 65 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 2d ago First seen · 65 lines · 62 tokens per session scan A cae9ffdd47aa

Subscribe to this mod's changes

security-engineer is an agent published in the GitHub repository mcleo-d/claude-agents (2 stars, last pushed 16d ago), with no licence file. It adds 62 tokens to every session and 1,137 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other agents, from other repositories