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.
npx agentmods add rules/udecode/plate-playground-template/componentsgit clone --depth 1 https://github.com/udecode/plate-playground-templateWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00031 | $0.10683 |
| Opus 5 | $0.00015 | $0.05341 |
| Sonnet 5 | $0.00006 | $0.02137 |
| Haiku 4.5 | $0.00003 | $0.01068 |
Grade A, and why
components 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- components — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 1,307 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Accessibility
URL: /accessibility
title: Accessibility description: Building components that are usable by everyone, including users with disabilities who rely on assistive technologies.
Accessibility (a11y) is not an optional feature—it's a fundamental requirement for modern web components. Every component must be usable by everyone, including people with visual, motor, auditory, or cognitive disabilities.
This guide is a non-exhaustive list of accessibility principles and patterns that you should follow when building components. It's not a comprehensive guide, but it should give you a sense of the types of issues you should be aware of.
If you use a linter with strong accessibility rules like Ultracite, these types of issues will likely be caught automatically, but it's still important to understand the principles.
Core Principles
- Semantic HTML First - Use native elements (
<button>,<nav>,<ul>) for built-in accessibility - Keyboard Navigation - Support Tab, Arrow keys, Home/End, Escape, Enter/Space for all interactions
- Screen Reader Support - Use ARIA attributes (
aria-label,aria-current,aria-live) for proper announcements - Visual Accessibility - Ensure focus indicators, sufficient contrast (4.5:1), and responsive text sizing
ARIA Patterns
ARIA enhances semantic HTML for assistive technologies. Key rules:
- Use semantic HTML first, ARIA only when necessary
- Don't override native semantics
- All interactive elements need keyboard access and accessible names
Common Attributes:
- Roles - Define element type (
role="button",role="navigation",role="alert") - States - Describe current state (
aria-checked,aria-expanded,aria-selected) - Properties - Provide context (
aria-label,aria-describedby,aria-controls,aria-required,aria-invalid)
Component Patterns
Complex interactive components require specific accessibility patterns. For detailed implementations, consult WAI-ARIA Authoring Practices.
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.
- yesterday First seen · 1,307 lines · 31 tokens per session scan A 0924c9f59b0b
components is a cursor rule published in the GitHub repository udecode/plate-playground-template (240 stars, last pushed 11d ago), licensed MIT. It adds 31 tokens to every session and 10,683 once invoked, about $0.0002 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.
Other cursor rules, from other repositories
components
React component architecture for creating composable, accessible components with data attributes. Use when creating/updating composable components, not for higher-level feature/page components.
react
React patterns with destructured props, compiler optimization, Effects, and Tailwind v4 syntax. ALWAYS use when using React.
dev-browser
Fallback browser automation with persistent Chrome state. Use only when Browser Use is unavailable or blocked.
browser-debug-setup
One-time setup for a persistent debug browser on 127.0.0.1:9222 for dev-browser --connect. Use when browser work is needed but no reusable debug browser is running yet.
agent-browser-issue
Open a concise GitHub follow-up for reusable browser-use limitations. Use when browser automation is blocked by a likely tool-side issue that is worth fixing separately, especially for clicks, dropdowns, file inputs, focus traps, or other repeatable agent/browser failures.
hard-cut
Remove a feature completely with no backward compatibility. Use when the user says "hard cut", "rip it out", "delete it", "unship", "kill this feature", or wants dead code removed instead of deprecated. Delete the surface, callers, tests, docs, comments, fallbacks, and stubs.