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.
git clone --depth 1 https://github.com/asunYLiu/practiceAIWrote 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.
[](https://agentmods.dev/rules/asunyliu/practiceai/frontend-rule)<a href="https://agentmods.dev/rules/asunyliu/practiceai/frontend-rule"><img src="https://agentmods.dev/badge/rules/asunyliu/practiceai/frontend-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.
<a href="https://agentmods.dev/rules/asunyliu/practiceai/frontend-rule"><img src="https://agentmods.dev/badge/rules/asunyliu/practiceai/frontend-rule.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00008 | $0.00145 |
| Opus 5.5 | $0.00003 | $0.00058 |
| Sonnet 5.5 | $0.00002 | $0.00029 |
| Haiku 4.5 | $0.00001 | $0.00015 |
Grade A, and why
frontend-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 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.
What it actually says
Rules for Frontend
- You must pay attention to visual clarity and contrast. Do not place white text on a white background.
- You must ensure the UX is pleasant. Boxes should grow to fit their contents, etc.
- When asking the user for sensitive information - you must use password style text-entry boxes in the UI.
- You should use Next.js as it works best with Vercel.
- This frontend will ultimately be deployed on Vercel, but it should be possible to test locally.
- Always provide users with a way to run the created UI once you have created it.
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.
- 1mo ago First seen · 13 lines · 8 tokens per session scan A 27a4922afe19
frontend-rule is a cursor rule published in the GitHub repository asunYLiu/practiceAI (2 stars, last pushed 1y ago), licensed MIT. It adds 8 tokens to every session and 145 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.
Other cursor rules, from other repositories
external-scale
Source: docs/agents/external-scale.md Regenerate: npm run agents:sync -w packages/openbridge-webcomponents -->.
codex-premium-website-skills
Apply Codex Skills standards to frontend, website, motion, accessibility, QA, agent reasoning, and handoff work.
ui-components
USE WHEN: Building UI components, structuring layouts, and applying styles using Tailwind CSS.
mobile-first-ui
Mobile-first UI for settings, dialogs, and lists — smaller type, stacked layouts, nested add dialogs.
ui-motion-workflow
Orchestrate motion-aware UI work by sequencing direction, provider choice, implementation, and browser validation.
frontend-design-direction
Derive a brief-specific visual direction, token sketch, hierarchy, and signature element.