Agent skill

Rasengan Optimizing

by rasengan-dev in rasengan-dev/rasenganjs

Optimization patterns for Rasengan.js. An agent skill from rasengan-dev/rasenganjs.

MITAuto-check passedDevelopment

Install Rasengan Optimizing

skills CLI

$ npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install rasengan-dev/rasenganjs rasengan-optimizing --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/rasengan-dev/rasenganjs.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/rasengan-optimizing .claude/skills/rasengan-optimizing && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "rasengan-optimizing" agent skill from https://github.com/rasengan-dev/rasenganjs/tree/main/.agents/skills/rasengan-optimizing into .claude/skills/rasengan-optimizing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rasengan-optimizing", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/rasengan-dev/rasenganjs/tree/main/.agents/skills/rasengan-optimizing

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install rasengan-dev/rasenganjs rasengan-optimizing --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rasengan-dev/rasenganjs.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/rasengan-optimizing .agents/skills/rasengan-optimizing && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "rasengan-optimizing" agent skill from https://github.com/rasengan-dev/rasenganjs/tree/main/.agents/skills/rasengan-optimizing into .agents/skills/rasengan-optimizing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rasengan-optimizing", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install rasengan-dev/rasenganjs rasengan-optimizing --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rasengan-dev/rasenganjs.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/rasengan-optimizing .cursor/skills/rasengan-optimizing && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "rasengan-optimizing" agent skill from https://github.com/rasengan-dev/rasenganjs/tree/main/.agents/skills/rasengan-optimizing into .cursor/skills/rasengan-optimizing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rasengan-optimizing", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/rasengan-dev/rasenganjs.git --path .agents/skills/rasengan-optimizing

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install rasengan-dev/rasenganjs rasengan-optimizing --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rasengan-dev/rasenganjs.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/rasengan-optimizing .gemini/skills/rasengan-optimizing && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "rasengan-optimizing" agent skill from https://github.com/rasengan-dev/rasenganjs/tree/main/.agents/skills/rasengan-optimizing into .gemini/skills/rasengan-optimizing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rasengan-optimizing", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install rasengan-dev/rasenganjs rasengan-optimizing

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/rasengan-dev/rasenganjs.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/rasengan-optimizing .github/skills/rasengan-optimizing && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "rasengan-optimizing" agent skill from https://github.com/rasengan-dev/rasenganjs/tree/main/.agents/skills/rasengan-optimizing into .github/skills/rasengan-optimizing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rasengan-optimizing", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install rasengan-dev/rasenganjs rasengan-optimizing --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rasengan-dev/rasenganjs.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/rasengan-optimizing .opencode/skills/rasengan-optimizing && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "rasengan-optimizing" agent skill from https://github.com/rasengan-dev/rasenganjs/tree/main/.agents/skills/rasengan-optimizing into .opencode/skills/rasengan-optimizing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rasengan-optimizing", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: rasengan-optimizing
GitHub stars: 125
Token cost: ~980 tokens
SKILL.md length: 243 words
Files: 1
Skills in repo: 13
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Optimization patterns for Rasengan.js. An agent skill from rasengan-dev/rasenganjs.

Managing static files
SKILL.md covers When to Activate, Static Assets — public/…, Metadata & SEO and React Compiler (Sage Mode), plus 2 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Optimizing resource delivery in a Rasengan.js project

What it does

Rasengan Optimizing is an agent skill from rasengan-dev/rasenganjs. Optimization patterns for Rasengan.js. Covers static assets via the public/ directory, asset handling best practices, and performance optimization. Use when managing static files, serving assets, or optimizing resource delivery in a Rasengan.js project.

Its SKILL.md is about 980 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Performance optimization. It works with React and X (Twitter). The repository describes itself as: Rasengan.js is a full-stack meta-framework for React — SSR, SSG, and a built-in backend, running anywhere from Node.js to the edge, without compromising on performance. The licence is MIT.

When your agent uses it

Managing static files
Optimizing resource delivery in a Rasengan.js project

Example prompts

“/rasengan-optimizing”

What it can do on your machine

Read from SKILL.md and the folder at commit 3fb89eb. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript and javascript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Rasengan Optimizing loads about 980 tokens when it runs. Until then it costs about 68 tokens; SKILL.md has 243 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~68
When it runs · the whole SKILL.md, loaded when a task matches: ~980

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from rasengan-dev/rasenganjs at commit 3fb89eb, republished under its MIT licence (© rasengan-dev). 243 words, ~980 tokens.

Download SKILL.mdSave it as .claude/skills/rasengan-optimizing/SKILL.md (or your agent's skills folder).

name: rasengan-optimizing
description: Optimization patterns for Rasengan.js. Covers static assets via the public/ directory, asset handling best practices, and performance optimization. Use when managing static files, serving assets, or optimizing resource delivery in a Rasengan.js project.
license: MIT
metadata.author: dilane3
metadata.framework: rasengan
metadata.version: 1.0.0

Rasengan.js Optimization Patterns

When to Activate

Serving static files (images, fonts, icons) from the public/ directory
Referencing assets in components or templates
Optimizing images and static resources for production
Configuring metadata for SEO (title, description, Open Graph, Twitter)
Enabling React Compiler via Sage Mode for automatic memoization

Static Assets — public/ Directory

Any file placed inside the public/ directory is automatically served at the base URL (/). No imports or special loaders needed.

File Placement

public/
├── favicon.ico
├── robots.txt
├── og-image.png
└── avatars/
    └── 1.png

Referencing in Code

tsx

// Public assets use root-relative paths
<img src="/avatars/1.png" alt="Avatar" />;

// With @rasenganjs/image
import { Image } from '@rasenganjs/image';
<Image src="/avatars/1.png" alt="Avatar" width={64} height={64} />;

tsx

// In the HTML template (src/template.tsx)
import { type TemplateProps } from 'rasengan';

export default function Template({ Head, Body, Script }: TemplateProps) {
  return (
    <html lang="en">
      <Head>
        <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
      </Head>
      <Body>
        <Script />
      </Body>
    </html>
  );
}

src/assets/ Directory

For assets that need bundling, transformation, or import-based references, use src/assets/ instead:

tsx

import logo from '@/assets/logo.svg';

function Header() {
  return <img src={logo} alt="Logo" />;
}

Metadata & SEO

SEO metadata is defined as a static property on page or layout components:

tsx

Home.metadata = {
  title: 'Home',
  description: 'Home page description',
  openGraph: {
    title: 'Home',
    description: 'Home page',
    url: 'https://example.com',
    image: 'https://example.com/og.png',
  },
  twitter: {
    card: 'summary_large_image',
    image: 'https://example.com/twitter.png',
    title: 'Home',
  },
};

Rules:

Page metadata takes priority over layout metadata (merged, page wins)
Loader-returned meta overrides static metadata at runtime
openGraph.url and openGraph.image are required when using Open Graph
twitter.card, twitter.image, twitter.title are required when using Twitter cards

React Compiler (Sage Mode)

Enable automatic memoization in rasengan.config.js:

export default defineConfig({
  sageMode: {
    reactCompiler: true, // auto-memoize all components
    // reactCompiler: { compilationMode: 'annotation' }, // only components with "use memo"
  },
});

true — applies React Compiler to all components automatically
{ compilationMode: 'annotation' } — only compiles components with a "use memo" directive

Bundle Optimization

Build output structure:

dist/
  client/        # Client bundle + manifest.json
    assets/      # JS, CSS, config.json
    .vite/       # Vite manifest
  server/        # SSR server bundle
static/          # Pre-rendered HTML (SSG)

Rules

Use public/ for assets that need a fixed URL path (favicon, robots.txt, og-images)
Use src/assets/ for assets that benefit from bundling, hashing, and import references
Always provide width and height on images to prevent Cumulative Layout Shift (CLS)
Place SEO-critical images (Open Graph, Twitter cards) in public/ for stable URLs
Enable sageMode.reactCompiler to reduce unnecessary re-renders in production
The public/ directory contents are copied as-is during build (no transformation)

Files

Just SKILL.md in .agents/skills/rasengan-optimizing of rasengan-dev/rasenganjs.

Open the folder on GitHubat commit 3fb89eb

Compare with similar skills

Rasengan Optimizing next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Rasengan Optimizing compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Rasengan Optimizing this skillrasengan-dev/rasenganjs	125	—	~980	Automated safety check: Pass	MIT	today
Electron Heap Snapshot Analysiskeybase/client	9.3k	—	~875	Automated safety check: Pass	BSD-3-Clause	today
Electron DevTools Trace Analysiskeybase/client	9.3k	—	~809	Automated safety check: Pass	BSD-3-Clause	today
Performance CheckZeroDeng01/sublinkPro	1.7k	—	~1.8k	Automated safety check: Pass	MIT	2 days ago
React DevTools Profile Analyzerkeybase/client	9.3k	—	~978	Automated safety check: Pass	BSD-3-Clause	today
React Best Practicesshapeshift/web	206	1 repos	~2k	Automated safety check: Pass	MIT	today

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Questions about Rasengan Optimizing

What does Rasengan Optimizing do?

Optimization patterns for Rasengan.js. An agent skill from rasengan-dev/rasenganjs. Rasengan Optimizing is an agent skill from rasengan-dev/rasenganjs.js.

When should I use Rasengan Optimizing?

Rasengan Optimizing fits situations like: managing static files; optimizing resource delivery in a Rasengan.js project.

How do I install Rasengan Optimizing in Claude Code?

Run `npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a claude-code`. Or copy the skill folder (.agents/skills/rasengan-optimizing in rasengan-dev/rasenganjs) into .claude/skills/rasengan-optimizing in your project. Claude Code loads it when a task matches its description.

How do I install Rasengan Optimizing in Codex?

Run `npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a codex`. Or copy the skill folder (.agents/skills/rasengan-optimizing in rasengan-dev/rasenganjs) into .agents/skills/rasengan-optimizing in your project. Codex loads it when a task matches its description.

Can I use Rasengan Optimizing in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add rasengan-dev/rasenganjs --skill rasengan-optimizing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rasengan-optimizing, .gemini/skills/rasengan-optimizing, .github/skills/rasengan-optimizing and .opencode/skills/rasengan-optimizing in your project.

What does Rasengan Optimizing need to run?

SKILL.md names no scripts, command-line tools or credentials: Rasengan Optimizing is instructions for the agent only.

Does Rasengan Optimizing access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Rasengan Optimizing safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Rasengan Optimizing use?

Rasengan Optimizing is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Rasengan Optimizing use?

About 980 tokens (SKILL.md is roughly 3.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Rasengan Optimizing?

Skills that share tags, products or a category with Rasengan Optimizing: Electron Heap Snapshot Analysis (keybase/client, 9.3k stars), Electron DevTools Trace Analysis (keybase/client, 9.3k stars), Performance Check (ZeroDeng01/sublinkPro, 1.7k stars) and React DevTools Profile Analyzer (keybase/client, 9.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Rasengan Optimizing?

rasengan-dev (a GitHub organization) maintains it in rasengan-dev/rasenganjs, which has 125 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on October 7, 2026.

Source: rasengan-dev/rasenganjs on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Rasengan Optimizing

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Rasengan.js Optimization Patterns

When to Activate

Static Assets — public/ Directory

File Placement

Referencing in Code

src/assets/ Directory

Metadata & SEO

React Compiler (Sage Mode)

Bundle Optimization

Rules

Files

Compare with similar skills

Similar skills

More from rasengan-dev/rasenganjs

Related

Questions about Rasengan Optimizing