Next Bundle Optimizer
Next Bundle Optimizer is an agent skill (a SKILL.md file) from vercel/next.js. Audit and reduce Next.js browser initial-load work. It works with Claude Code and has 143,296 GitHub stars across a repository of 6 listed skills. Install it by copying the skill folder into your agent's skills directory.
github.com/vercel/next.js/skills/next-bundle-optimizer (opens in a new tab)
Data as of from the GitHub API; description from the skill's SKILL.md. Report an error
Add this skill
Claude
This repository is a Claude Code plugin marketplace. In Claude Code:
/plugin marketplace add vercel/next.js
/plugin install nextjs@nextjsIn the Claude apps, zip the next-bundle-optimizer folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).
ChatGPT / Codex
Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:
git clone --depth 1 https://github.com/vercel/next.js.git
cp -r next.js/skills/next-bundle-optimizer .agents/skills/next-bundle-optimizer # repo; ~/.agents/skills for all projectsStandalone skills also load in the ChatGPT desktop app.
Cursor
Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:
git clone --depth 1 https://github.com/vercel/next.js.git
cp -r next.js/skills/next-bundle-optimizer .cursor/skills/next-bundle-optimizer # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)
What this skill does
Audit and reduce Next.js browser initial-load work. Use for slow route startup, oversized client bundles, duplicate browser dependencies, or features that can wait for interaction. Analyze the whole app by default, covering all routes and shared client dependencies. Narrow the scope only when the user specifies a route, dependency, feature or other subset. Choose audit or fix mode.
When it triggers
- Use for slow route startup, oversized client bundles, duplicate browser dependencies, or features that can wait for interaction.
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How do I install the Next Bundle Optimizer skill?
In Claude Code, run /plugin marketplace add vercel/next.js and then /plugin install nextjs@nextjs. For Codex or Cursor, copy the next-bundle-optimizer folder into .agents/skills/ or .cursor/skills/.
Is the Next Bundle Optimizer skill free?
Yes. The repository is open source under the MIT license.
Is Next Bundle Optimizer maintained?
The repository's most recent commit was on Oct 26, 2026. Its latest release is v16.4.3. appsgit only lists skills from repositories with a commit in the last six months.