Registry / devops / eslint-prettier-next-15

eslint-prettier-next-15

library0.1.11jsnpmunverified

eslint-prettier-next-15 (v0.1.11) is an automated CLI tool that configures ESLint (v9) and Prettier (v3) for Next.js 15 projects. It detects the package manager (npm, yarn, pnpm, or bun), removes old configurations, installs recommended dependencies (including @typescript-eslint, eslint-config-next, prettier plugins for import sorting and JSON formatting), and generates flat ESLint config and .prettierrc files. Designed for fresh or existing Next.js 15 apps, it enforces consistent code quality rules with zero manual setup. Updated irregularly; relies on flat config (eslint.config.mjs) and ESM-only imports.

devops testing

npm install eslint-prettier-next-15

github ↗package ↗

INSTALL

IMPORT

SIG · ESLINT-PRETTIER-NE

eslint-prettier-next-15

devopsjavascriptv0.1.11

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

CLI usage

✓ npx eslint-prettier-next-15

✗ npm install -g eslint-prettier-next-15 && eslint-prettier-next-15

The package is meant to be executed via npx, not installed globally.

eslint.config.mjs

✓ eslint.config.mjs (flat config file generated by script)

✗ .eslintrc.json or .eslintrc.js

This tool generates the modern ESLint flat config format. Legacy .eslintrc files are not compatible with ESLint v9.

.prettierrc.json

✓ .prettierrc.json (JSON with plugins array)

✗ prettier.config.js or .prettierrc.js

The generated config uses JSON format. Prettier also supports JS/TOML, but JSON is created here.

Creates a fresh Next.js 15 app, runs the setup script, then validates linting and formatting.

mkdir my-next-app && cd my-next-app npx create-next-app@15 . --typescript --eslint=false --src-dir --app --import-alias '@/*' --no-tailwind echo 'y' | npx eslint-prettier-next-15 npx eslint . --ext .ts,.tsx 2>/dev/null | head -5 || echo "No lint errors" npx prettier --check "app/**/*.ts" 2>/dev/null | head -5 || echo "All files formatted"

eslint-prettier-next-15 --version

Debug

Known issues

breakingThis script deletes existing ESLint and Prettier configuration files (.eslintrc.*, .prettierrc, .editorconfig, .vscode/settings.json) without backup.

fix

Manually backup your configuration files before running the script, or reapply them after setup.

affects: <=0.1.11

deprecatedThe script installs eslint-config-next@15.1.4 which is pinned; it may become outdated as Next.js updates its ESLint config.

fix

After running the script, update eslint-config-next to the latest version manually: npm install eslint-config-next@latest --save-dev

affects: 0.1.11

gotchaScript expected to be run in a Next.js 15 project root. Running elsewhere will create config files in wrong directory.

fix

Ensure you are in the root directory of your Next.js 15 project before executing the command.

affects: >=0.1.0

gotchaThe generated eslint.config.mjs uses FlatCompat to extend 'next' and 'next/core-web-vitals'. This may not work if ESLint is not v9 or if next/core-web-vitals is not installed.

fix

Verify that eslint and eslint-config-next are installed and compatible.

affects: 0.1.11

Errors

Common errors & fixes

Error [ERR_MODULE_NOT_FOUND]: Cannot find module 'next'

The script is run in a directory that is not a Next.js project or lacks node_modules.

fix

Run the command in a Next.js 15 project root after installing dependencies.

SyntaxError: Unexpected token 'export' (at eslint.config.mjs:1:1)

Using an outdated Node.js version (<18) that does not support ES modules or top-level await.

fix

Upgrade Node.js to v18 or later, or ensure "type": "module" is in package.json.

Error: Cannot find module '@eslint/eslintrc'

Script dependencies were not fully installed due to network issue or failed npm install.

fix

Delete node_modules and package-lock.json, then run npm install again, or run the script again.

eslint: 'import' is not defined (no-undef)

The generated config does not include eslint-plugin-import, but the eslint:recommended rule may report this.

fix

Add 'eslint-plugin-import' to the plugins and extend 'plugin:import/errors' or disable the rule.

Upgrade

Version history

0.1.11latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/danielalves96/eslint-prettier-next-15 ↗

packagehttps://www.npmjs.com/package/eslint-prettier-next-15 ↗