n-security

n-security is a cursor rule for Cursor from nitra/7n-rules. It costs 0 tokens per session (1,246 once invoked), scanned A, original, no licence file.

A security check for local development and continuous integration, using TruffleHog to look for exposed secrets. It also defines an exclusion file and a standard example placeholder for sample secrets.

In plain words
What is it for?
Use it when checking repositories locally or in CI for leaked keys, passwords, and other secret values.
Why use it?
It helps catch credentials accidentally committed to code while allowing intentional sample values to be identified consistently.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it when checking repositories locally or in CI for leaked keys, passwords, and other secret values.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/nitra/7n-rules/n-security
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/nitra/7n-rules

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 n-security

README.md
[![agentmods](https://agentmods.dev/badge/rules/nitra/7n-rules/n-security/github.svg)](https://agentmods.dev/rules/nitra/7n-rules/n-security)
Your own site
<a href="https://agentmods.dev/rules/nitra/7n-rules/n-security"><img src="https://agentmods.dev/badge/rules/nitra/7n-rules/n-security/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 n-security

Your own site · 80×15
<a href="https://agentmods.dev/rules/nitra/7n-rules/n-security"><img src="https://agentmods.dev/badge/rules/nitra/7n-rules/n-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,246 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 $0.00000 $0.01246
Opus 5.5 $0.00000 $0.00498
Sonnet 5.5 $0.00000 $0.00249
Haiku 4.5 $0.00000 $0.00125

Measured 1mo ago against content hash c6a141448c95, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

n-security 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 1mo 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.

.cursor/rules/n-security.mdc · 81 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. 1mo ago First seen · 81 lines · 0 tokens per session scan A c6a141448c95

Subscribe to this mod's changes

n-security is a cursor rule published in the GitHub repository nitra/7n-rules (1 stars, last pushed 1mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 1,246 tokens. 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.