ESLint plugin that catches incorrect use of noun forms like 'setup', 'login', 'signup' when verb forms are needed
npm install eslint-plugin-verb-nounsCatch incorrect use of noun forms like "setup", "login", "signup" when verb forms ("set up", "log in", "sign up") are needed.
Words like "setup", "login", and "signup" are nouns or adjectives. When used as verbs, they should be written as two words: "set up", "log in", and "sign up".
- Noun/Adjective: "The login screen", "Initial setup", "Signup form"
- Verb: "Log in to your account", "Set up your profile", "Sign up for free"
This rule uses heuristics to catch the most common mistakes in UI copy (buttons, labels, placeholders) while allowing legitimate noun usage.
I get it. This is pedantic, and it usually results in one-character changes. But nonetheless, it's a mistake so common that even LLMs mess it up all the time. Once you see it, you'll never unsee it.
``sh`
npm i -D eslint eslint-plugin-verb-nouns
yarn add -D eslint eslint-plugin-verb-nouns
pnpm add -D eslint eslint-plugin-verb-nouns
bun add -d eslint eslint-plugin-verb-nouns
Tested with ESLint 8.57+, 9.x, and 10 alpha.
`ts
// eslint.config.mjs
import verbNouns from "eslint-plugin-verb-nouns";
export default [
{
plugins: { "verb-nouns": verbNouns },
rules: {
"verb-nouns/no-verb-noun-confusion": "error",
},
},
];
`
`js`
// .eslintrc.cjs
module.exports = {
plugins: ["verb-nouns"],
rules: {
"verb-nouns/no-verb-noun-confusion": "error",
},
extends: ["plugin:verb-nouns/legacy"],
};
The no-verb-noun-confusion rule flags likely verb usage of:
- "Setup" → should be "Set up"
- "Login" → should be "Log in"
- "Signup" → should be "Sign up"
`jsx
// ❌ Bad - these are verbs, should be two words
// ✅ Good - proper verb forms
// ✅ Good - noun/adjective usage (allowed)
Complete the signup form
$3
The rule only checks:
- JSX text content
- String literals in
, title, and placeholder attributesIt allows known noun phrases like "initial setup", "login screen", "signup form", etc.
Options
None. The rule is purposefully minimal.
Contributing / Development
-
npm run lint — lint sources and tests
- npm run test — run rule tests (Vitest + ESLint RuleTester)
- npm run build — bundle to dist/` via TSUP (ESM + d.ts)MIT