Knip

Skill LFTPadilla/agent-dev-kit/plugins/dev-skills/skills/knip

Find dead code, unused files, unused exports, and unused dependencies in a JavaScript/TypeScript project using knip. Use before a refactor, before a PR, or when the user asks to clean up bloat, remove unused deps, or shrink the codebase.From its SKILL.md

Install

npx -y skills add LFTPadilla/agent-dev-kit --skill knip

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

2 things to look at

1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.
runs commandsInstructs the agent to run 4 commands, including `npx knip` and 3 more.

SKILL.md

1.8 KB, 386 tokens by cl100k_base, as published. Nobody here has run it

knip — dead code & unused dependency finder

Knip traces the whole project (not one file at a time) to find what nothing references: unused files, exports, types, and dependencies. This is the mechanical version of "delete code you don't need."

Run

npx knip                  # report unused files, exports, deps, types
npx knip --production     # only production code paths (ignore tests/dev)
npx knip --dependencies   # just unused/unlisted dependencies
npx knip --fix            # auto-remove unused exports/files (review the diff!)

Zero-config for most setups — knip reads package.json + tsconfig.json and has built-in plugins for Vite, Vitest, Next, ESLint, etc. Add a knip.json only if entry points are non-standard.

How to use the output

Run npx knip. Group findings: unused files / exports / deps / types.
Verify before deleting — knip can flag things reached only by dynamic import, config strings, or framework conventions. Confirm each is truly dead.
Remove in small commits (files, then exports, then deps). Re-run knip after.
--fix is safe for clearly-unused exports/files, but read the diff — never blind-apply on auth, migration, or public-API code.

Gotchas

Monorepo: run per-workspace or configure workspaces in knip.json.
Entry points it can't infer (CLI bins, serverless handlers) → list them in knip.json so it doesn't report them as unused.
Pairs well as a pre-commit gate (warn, don't block) and before any refactor.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.