cursorrules

A Python command-line security tool named scankii that scans coding-agent skill folders for leaked credentials. It checks both the written instructions and the source code, using tree-sitter to analyze code structure and Rich for terminal output.

In plain words
What is it for?
Use it to inspect SKILL.md files and related source code for credential leakage, while following its required Python typing and output conventions.
Why use it?
It helps find secret information that may have been accidentally exposed in agent skills. Looking at instructions and code together can reveal risks in both parts.

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/ashp15205/scankii/cursorrules
Clone the repo
git clone --depth 1 https://github.com/ashp15205/scankii

Made for: Cursor.

Per session 123 This file is loaded in full into every session.
When invoked 123 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.00123 $0.00123
Opus 5 $0.00062 $0.00062
Sonnet 5 $0.00025 $0.00025
Haiku 4.5 $0.00012 $0.00012

Measured 2d ago against content hash 5123a23daf59, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cursorrules 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 2d 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.

.cursorrules · 12 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. 2d ago First seen · 12 lines · 123 tokens per session scan A 5123a23daf59

Subscribe to this mod's changes

cursorrules is a cursor rule published in the GitHub repository ashp15205/scankii (5 stars, last pushed 1mo ago), with no licence file. It adds 123 tokens to every session, about $0.0006 per session on Opus 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 2026-08-31.