configure-knip

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更新日2026年6月2日 13:25

Set up and optimize Knip configuration to find unused files, dependencies, and exports. Use when configuring knip.json or cleaning up a JavaScript or TypeScript codebase.

インストール

Codex または Claude でインストールこの Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。

ソース

webpro

webpro/skills

GitHub リポジトリを開く Creator のリポジトリを見る

ダウンロード

Configure Knip

Set up and iteratively optimize Knip configuration to find unused files, dependencies, exports, and types.

Setup

Ensure the @knip/mcp MCP server is registered in your AI coding agent:

npx -y @knip/mcp

This provides three MCP capabilities:

knip-configure prompt — guided workflow for setup and optimization
knip-run tool — runs analysis, returns configuration hints and issues
knip-docs tool — fetches Knip documentation by topic

Task Instructions

If the MCP server is not available, register it with your agent
Use the knip-configure MCP prompt — it contains the full workflow:
- Reads essential docs via knip-docs
- Runs analysis via knip-run
- Iterates on knip.json until hints are resolved and false positives minimized

Core Principles

Configure Knip properly before jumping to conclusions about false positives
Run Knip to get configuration hints and issues
Address the hints by adjusting Knip configuration (knip.json)
Repeat until hints are gone and false positives are minimized

Configuration Review Hints

Never use "ignore" patterns (hides real issues!), always prefer specific solutions; other ignore* options are allowed
Remove ignore patterns that don't match any files
Remove redundant ignore patterns — Knip respects .gitignore (node_modules, dist, build, .git)
Remove entry patterns covered by config defaults and auto-detected plugins
Config files (e.g. vite.config.ts) showing as unused → try enable or disable the plugin explicitly ({ vite: true })
Unresolved imports from path aliases: add paths to Knip config (tsconfig.json semantics)
Dependencies matching Node.js builtins: add to ignoreDependencies (e.g. buffer, process)
Many unused exported types → consider ignoreExportsUsedInFile: { interface: true, type: true }

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name	configure-knip
description	Set up and optimize Knip configuration to find unused files, dependencies, and exports. Use when configuring knip.json or cleaning up a JavaScript or TypeScript codebase.

Configure Knip

Set up and iteratively optimize Knip configuration to find unused files, dependencies, exports, and types.

Setup

Ensure the @knip/mcp MCP server is registered in your AI coding agent:

npx -y @knip/mcp

This provides three MCP capabilities:

knip-configure prompt — guided workflow for setup and optimization
knip-run tool — runs analysis, returns configuration hints and issues
knip-docs tool — fetches Knip documentation by topic

Task Instructions

If the MCP server is not available, register it with your agent
Use the knip-configure MCP prompt — it contains the full workflow:
- Reads essential docs via knip-docs
- Runs analysis via knip-run
- Iterates on knip.json until hints are resolved and false positives minimized

Core Principles

Configure Knip properly before jumping to conclusions about false positives
Run Knip to get configuration hints and issues
Address the hints by adjusting Knip configuration (knip.json)
Repeat until hints are gone and false positives are minimized

Configuration Review Hints

Never use "ignore" patterns (hides real issues!), always prefer specific solutions; other ignore* options are allowed
Remove ignore patterns that don't match any files
Remove redundant ignore patterns — Knip respects .gitignore (node_modules, dist, build, .git)
Remove entry patterns covered by config defaults and auto-detected plugins
Config files (e.g. vite.config.ts) showing as unused → try enable or disable the plugin explicitly ({ vite: true })
Unresolved imports from path aliases: add paths to Knip config (tsconfig.json semantics)
Dependencies matching Node.js builtins: add to ignoreDependencies (e.g. buffer, process)
Many unused exported types → consider ignoreExportsUsedInFile: { interface: true, type: true }