mcp-cs: Skill for Claude Code

.agents/skills/react-state-architecture/SKILL.md

react-state-architecture is a skill for Claude Code, Codex from ieeecsopen/mcp-cs. It costs 113 tokens per session (759 once invoked), scanned A, original, no licence file.

A guide for organizing state in React 18/19 and Next.js applications. State is the data an application remembers and updates while people use it.

In plain words
What is it for?
It covers choosing Zustand, TanStack Query, or React Server Components for application state and cache invalidation.
Why use it?
It helps choose where data should live, reduces passing data through many component layers, and handles updates to cached data.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is ieeecsopen/mcp-cs's own configuration. It tells Claude Code and Codex how to work on mcp-cs 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 mcp-cs configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ieeecsopen/mcp-cs. 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/ieeecsopen/mcp-cs/main/.agents/skills/react-state-architecture/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ieeecsopen/mcp-cs

Made for: Claude Code, Codex.

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 react-state-architecture

README.md
[![agentmods](https://agentmods.dev/badge/skills/ieeecsopen/mcp-cs/react-state-architecture/github.svg)](https://agentmods.dev/skills/ieeecsopen/mcp-cs/react-state-architecture)
Your own site
<a href="https://agentmods.dev/skills/ieeecsopen/mcp-cs/react-state-architecture"><img src="https://agentmods.dev/badge/skills/ieeecsopen/mcp-cs/react-state-architecture/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 react-state-architecture

Your own site · 80×15
<a href="https://agentmods.dev/skills/ieeecsopen/mcp-cs/react-state-architecture"><img src="https://agentmods.dev/badge/skills/ieeecsopen/mcp-cs/react-state-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 759 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 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 $0.00113 $0.00759
Opus 5.5 $0.00045 $0.00304
Sonnet 5.5 $0.00023 $0.00152
Haiku 4.5 $0.00011 $0.00076

Measured 2mo ago against content hash aa666beb295e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

react-state-architecture 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 2mo 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.

.agents/skills/react-state-architecture/SKILL.md · 70 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 70 lines · 113 tokens per session scan A aa666beb295e

Subscribe to this mod's changes

react-state-architecture is a skill published in the GitHub repository ieeecsopen/mcp-cs (3 stars, last pushed 1mo ago), with no licence file. It adds 113 tokens to every session and 759 once invoked, about $0.0005 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.

Related

Other skills, from other repositories

chakraui

Expert Chakra UI assistance covering accessible React components, theme tokens, style props, and dark mode. Use when building modular, accessible React component libraries and dashboards.

G1Joshi/Agent-Skills · 34 tokens

materialui

Expert Material UI (MUI) assistance covering Emotion styled components, theme customization, DataGrid, and accessible icons. Use when building React enterprise dashboards with Google's Material Design.

G1Joshi/Agent-Skills · 37 tokens

remix

Expert Remix (React Router v7) assistance covering Loaders, Actions, nested routing, optimistic UI, and Web Fetch standards. Use when developing resilient, full-stack React web applications.

G1Joshi/Agent-Skills · 40 tokens

shadcnui

Expert shadcn/ui assistance covering Radix UI primitives, Tailwind CSS styling, copy-paste architecture, and accessibility. Use when building modern React component systems and accessible design systems.

G1Joshi/Agent-Skills · 42 tokens

tauri-rust-and-frontend-desktop

Architectural patterns, security IPC, performance optimization, native integration, and production best practices for building cross-platform desktop applications using Tauri (v2) and Rust with modern web frontends (React, Svelte, Vue). Use when designing, building, or optimizing Tauri desktop apps.

hamzabellouch/agent-skills · 68 tokens

gatsby

Expert Gatsby assistance covering static site generation, GraphQL data layer, Head API, and Gatsby Cloud. Use when building performant marketing sites and content blogs with React.

G1Joshi/Agent-Skills · 34 tokens