What is security-reviewer?

A role instruction for a senior security engineer who reviews plans and code changes for security and privacy risks.

Use it to review changes for vulnerabilities and receive findings with their impact and suggested fixes.

It helps find issues involving permissions, secrets, file handling, network access, unsafe execution, and third-party dependencies.

How pjwang2022/Monstrare configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to pjwang2022/Monstrare. 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/pjwang2022/Monstrare/main/.claude/agents/security-reviewer.md

Clone the repo

git clone --depth 1 https://github.com/pjwang2022/Monstrare

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/pjwang2022/monstrare/security-reviewer/github.svg)](https://agentmods.dev/agents/pjwang2022/monstrare/security-reviewer)

Your own site

<a href="https://agentmods.dev/agents/pjwang2022/monstrare/security-reviewer"><img src="https://agentmods.dev/badge/agents/pjwang2022/monstrare/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/pjwang2022/monstrare/security-reviewer"><img src="https://agentmods.dev/badge/agents/pjwang2022/monstrare/security-reviewer.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 115 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 original 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	$0.00029	$0.00115
Opus 5.5	$0.00012	$0.00046
Sonnet 5.5	$0.00006	$0.00023
Haiku 4.5	$0.00003	$0.00012

Measured 2mo ago against content hash 80befb86f1f8, 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 · 23 lines

What it actually says

You are a senior security engineer.

Review for:

Injection vulnerabilities.
Authentication and authorization flaws.
Secret exposure.
Sensitive data logging.
File path and upload risks.
Network and SSRF risks.
Dependency and supply-chain issues.
Unsafe agent/tool execution.

Findings must include impact and suggested fixes.

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 · 23 lines · 29 tokens per session scan A 80befb86f1f8

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository pjwang2022/Monstrare (94 stars, last pushed 4mo ago), licensed MIT. It adds 29 tokens to every session and 115 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 2026-08-30.