What is security-reviewer?

A security review agent that examines changed files for common web application risks using the OWASP Top 10:2025 list. OWASP is a security organization that publishes guidance about frequent software vulnerabilities.

Use it after changing authentication, API endpoints, file uploads, or input handling.

It challenges assumptions about data safety and can reveal risks in security-sensitive code changes.

How burnjohn/quick-blog configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to burnjohn/quick-blog. 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/burnjohn/quick-blog/main/.claude/agents/security-reviewer.md

Clone the repo

git clone --depth 1 https://github.com/burnjohn/quick-blog

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/burnjohn/quick-blog/security-reviewer/github.svg)](https://agentmods.dev/agents/burnjohn/quick-blog/security-reviewer)

Your own site

<a href="https://agentmods.dev/agents/burnjohn/quick-blog/security-reviewer"><img src="https://agentmods.dev/badge/agents/burnjohn/quick-blog/security-reviewer/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/burnjohn/quick-blog/security-reviewer"><img src="https://agentmods.dev/badge/agents/burnjohn/quick-blog/security-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 854 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.

Model	Per session	Once invoked
Fable 5.1	$0.00051	$0.00854
Opus 5.5	$0.00020	$0.00342
Sonnet 5.5	$0.00010	$0.00171
Haiku 4.5	$0.00005	$0.00085

Measured 2mo ago against content hash 85d006cc489f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-reviewer 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.

.claude/agents/security-reviewer.md · 89 lines

The source is not reproduced here

No licence file

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.

2mo ago First seen · 89 lines · 51 tokens per session scan A 85d006cc489f

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository burnjohn/quick-blog (24 stars, last pushed 1mo ago), with no licence file. It adds 51 tokens to every session and 854 once invoked, about $0.0002 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 2026-08-30.