CURSOR

A set of required instructions for Cursor, a coding editor with AI features, when it works on a dotfiles project. Dotfiles are configuration files that control developer tools and systems.

In plain words
What is it for?
It guides Cursor while editing the dotfiles project, including which behaviours are prohibited and which commands or project information matter.
Why use it?
It gives Cursor project-specific boundaries and working rules so its changes follow the repository’s expectations.

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/shiiman/dotfiles/cursor
Clone the repo
git clone --depth 1 https://github.com/shiiman/dotfiles

Made for: Cursor.

Per session 1,775 This file is loaded in full into every session.
When invoked 1,775 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 $0.01775 $0.01775
Opus 5 $0.00888 $0.00888
Sonnet 5 $0.00355 $0.00355
Haiku 4.5 $0.00178 $0.00178

Measured yesterday against content hash 1c7ac27f0d5e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

CURSOR 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 yesterday.

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/CURSOR.mdc · 241 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. yesterday First seen · 241 lines · 1,775 tokens per session scan A 1c7ac27f0d5e

Subscribe to this mod's changes

CURSOR is a cursor rule published in the GitHub repository shiiman/dotfiles (2 stars, last pushed 28d ago), with no licence file. It adds 1,775 tokens to every session, about $0.0089 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.