vercel-react-best-practices

vercel-react-best-practices is a skill for Claude Code from alfredolopez80/multi-agent-ralph-loop. It costs 58 tokens per session (2,229 once invoked), scanned B, original, no licence file.

A set of guidelines for improving the performance of React and Next.js applications. React is a JavaScript library for user interfaces, while Next.js is a framework built around it.

In plain words
What is it for?
Use it when writing, reviewing, or refactoring React or Next.js code, especially for page speed and bundle size work.
Why use it?
It helps find and avoid performance problems in components, pages, data loading, and bundled code.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it when writing, reviewing, or refactoring React or Next.js code, especially for page speed and bundle size work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alfredolopez80/multi-agent-ralph-loop/vercel-react-best-practices
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.

Any agent
npx skills add alfredolopez80/multi-agent-ralph-loop --skill vercel-react-best-practices
Clone the repo
git clone --depth 1 https://github.com/alfredolopez80/multi-agent-ralph-loop

Made for: Claude Code.

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 vercel-react-best-practices

README.md
[![agentmods](https://agentmods.dev/badge/skills/alfredolopez80/multi-agent-ralph-loop/vercel-react-best-practices/github.svg)](https://agentmods.dev/skills/alfredolopez80/multi-agent-ralph-loop/vercel-react-best-practices)
Your own site
<a href="https://agentmods.dev/skills/alfredolopez80/multi-agent-ralph-loop/vercel-react-best-practices"><img src="https://agentmods.dev/badge/skills/alfredolopez80/multi-agent-ralph-loop/vercel-react-best-practices/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 vercel-react-best-practices

Your own site · 80×15
<a href="https://agentmods.dev/skills/alfredolopez80/multi-agent-ralph-loop/vercel-react-best-practices"><img src="https://agentmods.dev/badge/skills/alfredolopez80/multi-agent-ralph-loop/vercel-react-best-practices.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,229 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00058 $0.02229
Opus 5.5 $0.00023 $0.00892
Sonnet 5.5 $0.00012 $0.00446
Haiku 4.5 $0.00006 $0.00223

Measured 1mo ago against content hash a4936e462ba4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

vercel-react-best-practices scanned grade B with 1 finding 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- **Model-agnostic**: Uses model configured in `~/.claude/settings.json` or CLI/env vars
.claude/skills/vercel-react-best-practices/SKILL.md · 277 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 277 lines · 58 tokens per session scan B a4936e462ba4

Subscribe to this mod's changes

vercel-react-best-practices is a skill published in the GitHub repository alfredolopez80/multi-agent-ralph-loop (146 stars, last pushed 1mo ago), with no licence file. It adds 58 tokens to every session and 2,229 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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