chrome-extension-rule

chrome-extension-rule is a cursor rule for Cursor from leonardogrig/cursor-rules-generator-api. It costs 6 tokens per session (2,725 once invoked), scanned A, original, no licence file.

A set of Cursor coding rules for building Chrome extensions, covering accessibility, tests, debugging, TypeScript, performance, functionality, and user experience.

In plain words
What is it for?
Developing, testing, and debugging Chrome extensions with TypeScript and accessibility in mind.
Why use it?
It gives an agent guidance for the extension-specific concerns that ordinary web-app rules may miss.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Developing, testing, and debugging Chrome extensions with TypeScript and accessibility in mind.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/leonardogrig/cursor-rules-generator-api/chrome-extension-rule
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/leonardogrig/cursor-rules-generator-api

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 chrome-extension-rule

README.md
[![agentmods](https://agentmods.dev/badge/rules/leonardogrig/cursor-rules-generator-api/chrome-extension-rule/github.svg)](https://agentmods.dev/rules/leonardogrig/cursor-rules-generator-api/chrome-extension-rule)
Your own site
<a href="https://agentmods.dev/rules/leonardogrig/cursor-rules-generator-api/chrome-extension-rule"><img src="https://agentmods.dev/badge/rules/leonardogrig/cursor-rules-generator-api/chrome-extension-rule/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 chrome-extension-rule

Your own site · 80×15
<a href="https://agentmods.dev/rules/leonardogrig/cursor-rules-generator-api/chrome-extension-rule"><img src="https://agentmods.dev/badge/rules/leonardogrig/cursor-rules-generator-api/chrome-extension-rule.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 6 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,725 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 $0.00006 $0.02725
Opus 5.5 $0.00002 $0.01090
Sonnet 5.5 $0.00001 $0.00545
Haiku 4.5 $0.00001 $0.00272

Measured 2mo ago against content hash 06dc1291c423, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

chrome-extension-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 2mo 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/chrome-extension-rule.mdc · 398 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. 2mo ago First seen · 398 lines · 6 tokens per session scan A 06dc1291c423

Subscribe to this mod's changes

chrome-extension-rule is a cursor rule published in the GitHub repository leonardogrig/cursor-rules-generator-api (5 stars, last pushed 1y ago), with no licence file. It adds 6 tokens to every session and 2,725 once invoked, about $0.0000 per session on Opus 5.5. 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.

Related

chrome-extension-rule compared with cursor rules from other repositories

chrome-extension-rule next to 6 cursor rules from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
chrome-extension-ruleleonardogrig/cursor-rules-generator-apiCursor rule51y agononeA6Cursor
vue-typescript-patternssoaring-xiongkulu/easyaiotCursor rule7566d agoMITA381Cursor
nextjs-typescript-app-cursorrules-prompt-filePatrickJS/awesome-cursorrulesCursor rule41k5mo agoCC0-1.0A66Cursor
tsun-pany/v3-admin-viteCursor rule7.1k3mo agoMITA287Cursor
typescript-securityfmflurry/settings-opencodeCursor rule1702d agoMITA0Cursor
general-rulevinhnx/vtchatCursor rule5917d agoMITA2,939Cursor
naming-conventions-ruleholtwood/awesome-cursorrules-zhCursor rule24119d agoMITA64Cursor