knip

Identify and remove unused files, dependencies, and exports in JavaScript/TypeScript projects.

2|Updated Jan 21, 2026

Search Tags:#javascript #static-analysis #dead-code #code-cleanup #knip #unused-dependencies

Ready to run

npx skills add https://github.com/roderik/mpe --skill knip

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Please help me install this Agent Skill.
Skill: knip
Source: https://github.com/roderik/mpe/tree/main/.agents/skills/knip
Command: npx skills add https://github.com/roderik/mpe --skill knip

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill automates the identification and removal of unused files, dependencies, and exports in a codebase, reducing maintenance burden and improving build performance.

Core Features & Use Cases

Automated cleanup: Detects dead code, unused dependencies, and orphaned exports to shrink bundles and simplify maintenance.
Monorepo support: Handles multi-package repositories, coordinating cleanup across packages.
Safety-first cleanup: Applies changes only when safe, with options to preview before deleting.

Quick Start

Install locally if needed: npm install -D knip
Run initial analysis: npx knip
Apply safe fixes: npx knip --fix --allow-remove-files

Frequently Asked Questions about knip

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I find and remove unused dependencies in a JavaScript project?▼

To find and remove unused dependencies in a JavaScript project, you can run `npx knip` to analyze imports and exports, producing safe cleanup recommendations for unused files and dependencies.

What is dead code analysis and how does it help with code cleanup?▼

Dead code analysis identifies unused files, dependencies, and orphaned exports in a codebase. This code cleanup reduces maintenance burden, simplifies the project, and improves build performance by shrinking bundles.

Can I detect unused exports and dead code in a monorepo?▼

Yes, you can detect unused exports and dead code in a monorepo. The analysis handles multi-package repositories, coordinating cleanup safely across packages to remove orphaned files and dependencies.

Is there a safe way to preview dead code removal before deleting files?▼

Yes, you can safely preview dead code removal before deleting files. You run an initial analysis to view recommendations, then apply safe fixes using the `--fix --allow-remove-files` command to execute the cleanup safely.

Do I need to install a static analysis tool globally to clean up unused dependencies?▼

No, you do not need to install a static analysis tool globally to clean up unused dependencies. You can run it directly via `npx knip` or install it locally as a development dependency using `npm install -D knip`.