security-expert-overview

security-expert-overview is a cursor rule for Cursor from djm204/frankenbeast. It costs 3 tokens per session (428 once invoked), scanned A, original, no licence file.

Application security engineering guidance for software development and maintenance.

In plain words
What is it for?
Use it for application-security work, although the available description does not specify particular jobs.
Why use it?
The description does not provide enough detail to identify the specific security tasks it covers.

Cursor rule for Cursor

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.

agentmods
npx agentmods add rules/djm204/frankenbeast/security-expert-overview
Clone the repo
git clone --depth 1 https://github.com/djm204/frankenbeast

Made for: Cursor.

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-overview

README.md
[![agentmods](https://agentmods.dev/badge/rules/djm204/frankenbeast/security-expert-overview.svg)](https://agentmods.dev/rules/djm204/frankenbeast/security-expert-overview)
Your own site
<a href="https://agentmods.dev/rules/djm204/frankenbeast/security-expert-overview"><img src="https://agentmods.dev/badge/rules/djm204/frankenbeast/security-expert-overview.svg" alt="Measured on agentmods" height="20"></a>
Per session 3 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 428 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00003 $0.00428
Opus 5 $0.00002 $0.00214
Sonnet 5 $0.00001 $0.00086
Haiku 4.5 $0.00000 $0.00043

Measured 5d ago against content hash 3b65675d0d7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

security-expert-overview 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 5d 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.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- **Overly broad permissions** — wildcard IAM policies, chmod 777, CORS * on authenticated endpoints

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

.cursor/rules/security-expert-overview.mdc · 38 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. 5d ago First seen · 38 lines · 3 tokens per session scan A 3b65675d0d7e

Subscribe to this mod's changes

security-expert-overview is a cursor rule published in the GitHub repository djm204/frankenbeast (2 stars, last pushed yesterday), with no licence file. It adds 3 tokens to every session and 428 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.