CtrlK
BlogDocsLog inGet started
Tessl Logo
SkillPublic

next-bundle-optimizer

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.

Quality

92%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide
SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security
Low

W012: Unverifiable external dependency detected (runtime URL that controls agent).

What this means

The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.

Why it was flagged

The skill references GitHub URLs (`https://github.com/vercel/next.js/tree/canary/skills/...`) to instruct the agent to install external optimization skills via `npx skills add`, which represents an inbound operational dependency on third-party remote content under weak or common unofficial provenance.

Report incorrect finding
Repository

vercel/next.js

Path

skills/next-bundle-optimizer/SKILL.md

Audited
Security analysis
Snyk

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.