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 skills/assistant-ui/skills/react-mcpnpx skills add assistant-ui/skills --skill react-mcpgit clone --depth 1 https://github.com/assistant-ui/skillsWhat 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 | $0.00306 | $0.02827 |
| Opus 5 | $0.00153 | $0.01413 |
| Sonnet 5 | $0.00061 | $0.00565 |
| Haiku 4.5 | $0.00031 | $0.00283 |
Grade A, and why
react-mcp 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 3d 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.
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.
What ships with it
3 files 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.
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.
- 3d ago First seen · 231 lines · 306 tokens per session scan A 5f5aa6178f28
react-mcp is a skill published in the GitHub repository assistant-ui/skills (23 stars, last pushed 1mo ago), with no licence file. It adds 306 tokens to every session and 2,827 once invoked, about $0.0015 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 skills, from other repositories
nextjs-idioms
Next.js App Router, RSC, Server Actions, ISR. For React see react-idioms. For TypeScript see typescript-idioms.
frontmcp-auth-ui
Use when customizing, branding, or replacing the built-in FrontMCP OAuth pages (the login, consent, federated-select, incremental-authorization, and error pages) with your own React components. Covers the auth.ui slot-to-file map and auth.extras name-to-handler map on the auth config (no decorator, no class); the…
nextjs-docs
Use this skill whenever the user asks about Next.js, React full-stack development, App Router, Server Components, or building web applications with Next.js. This skill covers Next.js 16.2.7 with React 19.2, App Router, Cache Components, Turbopack, and all modern patterns. Use it for code generation, architecture…
codex-taskboard
一个本地优先（local-first）的任务看板：在浏览器中运行，既可以通过独立的 CDP 启动器、也可以通过注入脚本嵌入 Codex 使用。同一套 HTTP API 同时驱动 React Web UI 和随附 Codex Skill 使用的 taskctl CLI，形成一个"看板 + CLI + Agent 技能"一体的任务管理底座。.
general-video
Author or edit a custom HyperFrames composition when no specialized workflow fits, or when BRIEF.md sets flow: companion. Use for longer or multi-scene pieces, brand and sizzle reels, montages, static loops, static title cards, footage remixes, and freeform builds. Use motion-graphics instead for a short unnarrated…
hyperframes-registry
Install, discover, and wire registry blocks and components into HyperFrames compositions. Use when running hyperframes add or hyperframes catalog, installing one item or every block matching a tag, wiring an installed item into index.html, or working with hyperframes.json. Covers discovery, install locations, block…