security-scanner

security-scanner is an agent for Claude Code from johanolofsson72/Claude. It costs 35 tokens per session (324 once invoked), scanned A, original, no licence file.

A security-focused code reviewer that checks software for common vulnerabilities and exposed secrets. It looks for issues such as SQL injection, XSS, CSRF, and incorrect authentication or authorization.

In plain words
What is it for?
Use it to review code for vulnerabilities, secret leaks, unsafe database queries, browser attacks, and access-control mistakes.
Why use it?
It helps find security problems in code before they can expose data or allow unwanted actions.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit Use it to review code for vulnerabilities, secret leaks, unsafe database queries, browser attacks, and access-control mistakes.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/johanolofsson72/claude/security-scanner
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/johanolofsson72/Claude

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 security-scanner

README.md
[![agentmods](https://agentmods.dev/badge/agents/johanolofsson72/claude/security-scanner/github.svg)](https://agentmods.dev/agents/johanolofsson72/claude/security-scanner)
Your own site
<a href="https://agentmods.dev/agents/johanolofsson72/claude/security-scanner"><img src="https://agentmods.dev/badge/agents/johanolofsson72/claude/security-scanner/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-scanner

Your own site · 80×15
<a href="https://agentmods.dev/agents/johanolofsson72/claude/security-scanner"><img src="https://agentmods.dev/badge/agents/johanolofsson72/claude/security-scanner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 324 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 $0.00035 $0.00324
Opus 5.5 $0.00014 $0.00130
Sonnet 5.5 $0.00007 $0.00065
Haiku 4.5 $0.00003 $0.00032

Measured 18d ago against content hash 6f3999da4c88, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-scanner 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 18d 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.

.claude/agents/security-scanner.md · 40 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. 18d ago Changed · +5 lines 6f3999da4c88
  2. 22d ago Changed · +1 lines d38643b5a812
  3. 1mo ago First seen · 34 lines · 35 tokens per session scan A 912ebe241a04

Subscribe to this mod's changes

security-scanner is an agent published in the GitHub repository johanolofsson72/Claude (2 stars, last pushed 3d ago), with no licence file. It adds 35 tokens to every session and 324 once invoked, about $0.0001 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.