html-react-rules

html-react-rules is a cursor rule for Cursor from NotePlan/plugins. It costs 107 tokens per session, scanned A, original, MIT.

Coding rules for NotePlan plugins, including how to import modules, handle promises, and update notes. NotePlan is a note-taking application with its own JavaScript runtime and built-in APIs.

In plain words
What is it for?
Use them when creating or modifying NotePlan plugin code, especially code that waits for conditions, edits notes, or works with page elements.
Why use it?
They prevent compatibility problems caused by unsupported JavaScript features, incorrect imports, or using the wrong build process.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/. Also seen: mentions AGENTS.md.

Good fit Use them when creating or modifying NotePlan plugin code, especially code that waits for conditions, edits notes, or works with page elements.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/noteplan/plugins/html-react-rules
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/NotePlan/plugins

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 html-react-rules

README.md
[![agentmods](https://agentmods.dev/badge/rules/noteplan/plugins/html-react-rules/github.svg)](https://agentmods.dev/rules/noteplan/plugins/html-react-rules)
Your own site
<a href="https://agentmods.dev/rules/noteplan/plugins/html-react-rules"><img src="https://agentmods.dev/badge/rules/noteplan/plugins/html-react-rules/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 html-react-rules

Your own site · 80×15
<a href="https://agentmods.dev/rules/noteplan/plugins/html-react-rules"><img src="https://agentmods.dev/badge/rules/noteplan/plugins/html-react-rules.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 This file is loaded in full into every session.
When invoked 107 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00107 $0.00107
Opus 5.5 $0.00043 $0.00043
Sonnet 5.5 $0.00021 $0.00021
Haiku 4.5 $0.00011 $0.00011

Measured 26d ago against content hash 933168d8c6c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

html-react-rules 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 26d 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/html-react-rules.mdc · 14 lines

What it actually says

React / HTML

Follow agents/docs/react-html.md. Hub: AGENTS.md.

  • Static import only; do not npm run build
  • Use Promise polyfills from @helpers/promisePolyfill.js
  • Memoize Context/child callbacks with useCallback; AppContext with useMemo
  • Use DynamicDialog (handlers in useCallback)
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. 26d ago Changed · -73 lines · -861 tokens per session 933168d8c6c8
  2. 1mo ago First seen · 87 lines · 968 tokens per session scan A b5351d7979a1

Subscribe to this mod's changes

html-react-rules is a cursor rule published in the GitHub repository NotePlan/plugins (204 stars, last pushed today), licensed MIT. It adds 107 tokens to every session, about $0.0004 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 2026-08-30.