security-expert

security-expert is an agent for Claude Code from SebastianDevps/agent007. It costs 82 tokens per session (1,930 once invoked), scanned A, original, no licence file.

A senior application-security reviewer focused on common web risks, authentication tokens, personal data, and compliance requirements.

In plain words
What is it for?
Use it when changing login systems, payments, encryption, permissions, cross-origin settings, personal data, or code vulnerable to attacks such as XSS and injection.
Why use it?
It helps find security problems in sensitive code paths before they reach production.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the agent007 plugin — 56 skills, 8 commands, 13 agents shipped together

Good fit Use it when changing login systems, payments, encryption, permissions, cross-origin settings, personal data, or code vulnerable to attacks such as XSS and injection.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/sebastiandevps/agent007/security-expert
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/SebastianDevps/agent007

Made for: Claude Code.

Or install agent007, the plugin that ships this one along with the rest of its 56 skills, 8 commands, 13 agents.

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 security-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/sebastiandevps/agent007/security-expert/github.svg)](https://agentmods.dev/agents/sebastiandevps/agent007/security-expert)
Your own site
<a href="https://agentmods.dev/agents/sebastiandevps/agent007/security-expert"><img src="https://agentmods.dev/badge/agents/sebastiandevps/agent007/security-expert/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 security-expert

Your own site · 80×15
<a href="https://agentmods.dev/agents/sebastiandevps/agent007/security-expert"><img src="https://agentmods.dev/badge/agents/sebastiandevps/agent007/security-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 82 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,930 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 $0.00082 $0.01930
Opus 5.5 $0.00033 $0.00772
Sonnet 5.5 $0.00016 $0.00386
Haiku 4.5 $0.00008 $0.00193

Measured 2mo ago against content hash b8748fe32fed, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-expert 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 2mo 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.

agents/security-expert.md · 140 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. 2mo ago First seen · 140 lines · 82 tokens per session scan A b8748fe32fed

Subscribe to this mod's changes

security-expert is an agent published in the GitHub repository SebastianDevps/agent007 (5 stars, last pushed 5mo ago), with no licence file. It adds 82 tokens to every session and 1,930 once invoked, about $0.0003 per session on Opus 5.5. 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.

Related

Other agents, from other repositories

playwright-test-generator

Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.

microsoft/playwright · 151 tokens

.NET-Notebook-Migration-Agent

Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.

microsoft/ai-agents-for-beginners · 33 tokens

code-reviewer

Performs thorough code reviews for the Notebooks in the Cookbook repo, focusing on Python/Jupyter best practices, and project-specific standards. Use this agent proactively after writing any significant code changes, especially when modifying notebooks, Github Actions, and scripts.

anthropics/claude-cookbooks · 52 tokens

AVM Owner Triage

Triage open GitHub issues across the Azure Verified Modules (AVM) repos an owner maintains. Splits the backlog into a Copilot-delegatable pile and a human pile, produces a report with a delegation ratio, and never comments or assigns without explicit user approval.

github/awesome-copilot · 61 tokens

Ultimate Transparent Thinking Beast Mode

Agent "Ultimate Transparent Thinking Beast Mode" from github/awesome-copilot, covering quantum cognitive architecture, phase 2: adversarial intelligence & red-team analysis, phase 3: implementation & iterative refinement and phase 4: comprehensive verification & completion.

github/awesome-copilot · 11 tokens

Context7-Expert

Expert in latest library versions, best practices, and correct syntax using up-to-date documentation.

github/awesome-copilot · 22 tokens