requirements_rule

requirements_rule is a cursor rule for Cursor from lawrennd/vibesafe. It costs 1,367 tokens per session, scanned A, original, no licence file.

Requirements guidance for describing what a project must achieve, rather than how its code should be implemented.

In plain words
What is it for?
Use it when defining, discussing, or documenting what needs to be built in a VibeSafe project.
Why use it?
It keeps requirements focused on outcomes and leaves implementation choices open.

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/lawrennd/vibesafe/requirements_rule
Clone the repo
git clone --depth 1 https://github.com/lawrennd/vibesafe

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 requirements_rule

README.md
[![agentmods](https://agentmods.dev/badge/rules/lawrennd/vibesafe/requirements_rule.svg)](https://agentmods.dev/rules/lawrennd/vibesafe/requirements_rule)
Your own site
<a href="https://agentmods.dev/rules/lawrennd/vibesafe/requirements_rule"><img src="https://agentmods.dev/badge/rules/lawrennd/vibesafe/requirements_rule.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,367 This file is loaded in full into every session.
When invoked 1,367 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 $0.01367 $0.01367
Opus 5 $0.00683 $0.00683
Sonnet 5 $0.00273 $0.00273
Haiku 4.5 $0.00137 $0.00137

Measured 5d ago against content hash 82120bc10ef2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

requirements_rule 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 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.

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.

templates/.cursor/rules/requirements_rule.mdc · 180 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 · 180 lines · 1,367 tokens per session scan A 82120bc10ef2

Subscribe to this mod's changes

requirements_rule is a cursor rule published in the GitHub repository lawrennd/vibesafe (42 stars, last pushed 2mo ago), with no licence file. It adds 1,367 tokens to every session, about $0.0068 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 2026-08-30.