experiments: Cursor rule for Cursor

.cursor/deprecated/web-app-documentation.mdc

web-app-documentation is a cursor rule for Cursor from reliverse/experiments. It costs 0 tokens per session (1,042 once invoked), scanned A, original, MIT.

Project guidelines for maintaining a Next.js documentation website, including its page structure, MDX content, navigation files, components, and naming conventions. Next.js is a framework for building websites with React.

In plain words
What is it for?
Use it when adding or editing documentation, API pages, plugin guides, navigation metadata, or landing-page components in the web app.
Why use it?
It keeps documentation pages and shared website components organized and consistent. It also shows where different kinds of documentation and landing-page sections belong.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

This is reliverse/experiments's own configuration. It tells Cursor how to work on experiments itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything experiments configures →

Reuse

Borrowing it

Nothing to install: this file belongs to reliverse/experiments. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/reliverse/experiments/main/.cursor/deprecated/web-app-documentation.mdc
Clone the repo
git clone --depth 1 https://github.com/reliverse/experiments

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 web-app-documentation

README.md
[![agentmods](https://agentmods.dev/badge/rules/reliverse/experiments/web-app-documentation/github.svg)](https://agentmods.dev/rules/reliverse/experiments/web-app-documentation)
Your own site
<a href="https://agentmods.dev/rules/reliverse/experiments/web-app-documentation"><img src="https://agentmods.dev/badge/rules/reliverse/experiments/web-app-documentation/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 web-app-documentation

Your own site · 80×15
<a href="https://agentmods.dev/rules/reliverse/experiments/web-app-documentation"><img src="https://agentmods.dev/badge/rules/reliverse/experiments/web-app-documentation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,042 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 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 $0.00000 $0.01042
Opus 5.5 $0.00000 $0.00417
Sonnet 5.5 $0.00000 $0.00208
Haiku 4.5 $0.00000 $0.00104

Measured 1mo ago against content hash e6cb88dcb31f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

web-app-documentation 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 1mo 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/deprecated/web-app-documentation.mdc · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Web App and Documentation Patterns

Guidelines for working with the Next.js documentation website in apps/web/.

Next.js App Structure

Documentation Content

File Naming in Web App

  • Use kebab-case for components: code-comparison.tsx, features-grid.tsx
  • Page files follow Next.js conventions: page.tsx, layout.tsx
  • Keep component files focused and modular

Landing Page Components

Key landing page sections in components/landing/:

Styling

  • Tailwind CSS for styling
  • Custom styles in global.css
  • Use CSS variables for theming
  • Responsive design patterns throughout

Content Management

Read the full file on GitHub · 146 lines

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. 1mo ago First seen · 146 lines · 0 tokens per session scan A e6cb88dcb31f

Subscribe to this mod's changes

web-app-documentation is a cursor rule published in the GitHub repository reliverse/experiments (117 stars, last pushed 7mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,042 tokens. 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 2026-09-01.