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 skills add secondsky/claude-skills --skill bun-react-ssrgit clone --depth 1 https://github.com/secondsky/claude-skillsWrote 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/skills/secondsky/claude-skills/bun-react-ssr)<a href="https://agentmods.dev/skills/secondsky/claude-skills/bun-react-ssr"><img src="https://agentmods.dev/badge/skills/secondsky/claude-skills/bun-react-ssr.svg" alt="Measured on agentmods" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00033 | $0.02099 |
| Opus 5 | $0.00016 | $0.01050 |
| Sonnet 5 | $0.00007 | $0.00420 |
| Haiku 4.5 | $0.00003 | $0.00210 |
Grade A, and why
bun-react-ssr scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
async fetch(req) { How it starts
The opening of the file, as written. The whole thing — 409 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bun React SSR
Build custom server-rendered React applications with Bun.
Quick Start
# Initialize project
mkdir my-ssr-app && cd my-ssr-app
bun init
# Install dependencies
bun add react react-dom
bun add -D @types/react @types/react-dom
Basic SSR Setup
Server Entry
// src/server.tsx
import { renderToString } from "react-dom/server";
import App from "./App";
Bun.serve({
port: 3000,
async fetch(req) {
const url = new URL(req.url);
// Serve static files
if (url.pathname.startsWith("/static/")) {
const file = Bun.file(`./public${url.pathname}`);
if (await file.exists()) {
return new Response(file);
}
}
// Render React app
const html = renderToString(<App url={url.pathname} />);
return new Response(
`<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>React SSR</title>
</head>
<body>
<div id="root">${html}</div>
<script src="/static/client.js"></script>
</body>
</html>`,
{
headers: { "Content-Type": "text/html" },
}
);
},
});
console.log("Server running on http://localhost:3000");
Client Entry
// src/client.tsx
import { hydrateRoot } from "react-dom/client";
import App from "./App";
hydrateRoot(
document.getElementById("root")!,
<App url={window.location.pathname} />
);
React App
// src/App.tsx
interface AppProps {
url: string;
}
export default function App({ url }: AppProps) {
return (
<div>
<h1>React SSR with Bun</h1>
<p>Current path: {url}</p>
<button onClick={() => alert("Hydrated!")}>Click me</button>
</div>
);
}
Build Client Bundle
// build.ts
await Bun.build({
entrypoints: ["./src/client.tsx"],
outdir: "./public/static",
target: "browser",
minify: true,
splitting: true,
});
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.
- 4d ago First seen · 409 lines · 33 tokens per session scan A c7d54b164168
bun-react-ssr is a skill published in the GitHub repository secondsky/claude-skills (215 stars, last pushed today), licensed MIT. It adds 33 tokens to every session and 2,099 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other skills, from other repositories
ui-design
Use when directing, building, or auditing React/Next.js Tailwind UI: visual direction, responsive/dark-mode retrofits, UX audits. Not for typography or motion: use typography-audit or ui-animation.
remember
Record why something is the way it is — a decision and its reasoning, a lesson that cost time, or a standing constraint. Use when the reasoning behind a choice would be expensive to reconstruct later.
bootstrap
Set up chamnan in this repository for the first time — build the architecture index, measure how well the code describes itself, fill in missing file comments, and record a baseline. Run once per repo.
milestone
Record a change that reshaped the repository — what moved, why it was worth doing, and which areas it touched. Use after a migration, a rewrite, or a decision that changed how part of the system works.
resume
Write down where this stretch of work stopped, so the next session continues instead of restarting. Use at the end of a working session, or when handing the repository to someone else.
capture
Write down a procedure worth keeping — a multi-step process, a trap that cost real time, or something that has now come up three times. Use it the moment you finish such a task, while the details are still exact.