bug-v3: Agent for Claude Code

.claude/agents/security-scanner.md

security-scanner is an agent for Claude Code from stevessr/bug-v3. It costs 29 tokens per session (1,309 once invoked), scanned A, original, no licence file.

A security scanning agent that looks for vulnerabilities, accidentally exposed secrets, and other security issues in code.

In plain words
What is it for?
Use it for code security checks, secret detection, and suggested fixes.
Why use it?
It helps find security problems after changes or during an audit before they cause harm.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is stevessr/bug-v3's own configuration. It tells Claude Code how to work on bug-v3 itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything bug-v3 configures →

Reuse

Borrowing it

Nothing to install: this file belongs to stevessr/bug-v3. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/stevessr/bug-v3/master/.claude/agents/security-scanner.md
Clone the repo
git clone --depth 1 https://github.com/stevessr/bug-v3

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/stevessr/bug-v3/security-scanner/github.svg)](https://agentmods.dev/agents/stevessr/bug-v3/security-scanner)
Your own site
<a href="https://agentmods.dev/agents/stevessr/bug-v3/security-scanner"><img src="https://agentmods.dev/badge/agents/stevessr/bug-v3/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/stevessr/bug-v3/security-scanner"><img src="https://agentmods.dev/badge/agents/stevessr/bug-v3/security-scanner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,309 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00029 $0.01309
Opus 5.5 $0.00012 $0.00524
Sonnet 5.5 $0.00006 $0.00262
Haiku 4.5 $0.00003 $0.00131

Measured 3d ago against content hash e38a993fd669, 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 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 3d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

os.system(f"convert {user_file} output.pdf")
.claude/agents/security-scanner.md · 272 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 3d ago First seen · 272 lines · 29 tokens per session scan A e38a993fd669

Subscribe to this mod's changes

security-scanner is an agent published in the GitHub repository stevessr/bug-v3 (15 stars, last pushed 2d ago), with no licence file. It adds 29 tokens to every session and 1,309 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-27.

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