linting-neostandard-eslint9

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha 3f067ed6a979 · 23 Oct 2026Report an issue or request a re-scan

• Publishermcollina GitHub userOwner of the repository this skill is read from
• Source foldermcollina/skills/skills/linting-neostandard-eslint9The exact folder we audited
• LicenceMITAs the repository states it
• Commit pinned for this verdict3f067ed6a979A new audit runs when the source changes
• Repository statusNot archivedLast push 5 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Configures ESLint v9 flat config and neostandard for JavaScript and TypeScript projects, including migrating from legacy `.eslintrc*` files or the `standard` package. Use when you need to set up or fix linting with…

---
name: linting-neostandard-eslint9
description: Configures ESLint v9 flat config and neostandard for JavaScript and TypeScript projects, including migrating from legacy `.eslintrc*` files or the `standard` package. Use when you need to set up or fix linting with `eslint.config.js` or `eslint.config.mjs`, troubleshoot lint errors, configure neostandard rules, migrate from `.eslintrc` to flat config, or integrate linting into CI pipelines and pre-commit hooks.
metadata:
  tags: linting, neostandard, eslint, eslint9, flat-config, javascript, typescript
---

## When to use

Use this skill when you need to:
- Set up linting in a JavaScript or TypeScript project
- Use `neostandard` as a Standard-like ESLint v9 flat-config baseline
- Configure `eslint@9` with the flat config system (`eslint.config.js`/`eslint.config.mjs`)
- Migrate from `standard` to `neostandard` or ESLint v9
- Migrate from legacy `.eslintrc*` configuration to ESLint v9
- Run linting consistently in CI and local development

## Quick start: basic neostandard setup

Install dependencies and create a minimal `eslint.config.js`:

```bash
npm install --save-dev eslint@9 neostandard
```

```js
// eslint.config.js
import neostandard from 'neostandard'

export default neostandard()
```

Verify the config works:

```bash
npx eslint .
```

## Common setup workflow (new project)

1. Install `eslint@9` and `neostandard` (see Quick start above)
2. Create `eslint.config.js` with `neostandard()` as the base
3. Add any project-specific rule overrides on top
4. Run `npx eslint .` to confirm no config errors
5. Add a lint script to `package.json`: `"lint": "eslint ."`
6. Integrate into CI with a non-fix run; use `--fix` only in local workflows

## How to use

Read individual rule files for implementation details and examples:

- [rules/neostandard.md](rules/neostandard.md) - Install, configure, and extend neostandard with ESLint
- [rules/eslint-v9-flat-config.md](rules/eslint-v9-flat-config.md) - Build ESLint v9 flat config for JS/TS projects
- [rules/migration-from-standard.md](rules/migration-from-standard.md) - Migrate from `standard` to `neostandard` or ESLint v9
- [rules/migration-from-legacy-eslint.md](rules/migration-from-legacy-eslint.md) - Migrate from `.eslintrc*` to flat config safely
- [rules/ci-and-editor-integration.md](rules/ci-and-editor-integration.md) - CI scripts, pre-commit, and editor setup

## Core principles

- Prefer reproducible linting with pinned major versions
- Keep config minimal and explicit
- Use flat config for ESLint v9 projects
- Treat lint failures as quality gates in CI
- Enable auto-fix for local workflows, but validate with non-fix CI runs

Excerpt, first 2,672 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

npm install --save-dev eslint@9 neostandard
npm install --save-dev eslint neostandard
npm install --save-dev eslint @eslint/js typescript-eslint
npm install --save-dev eslint@^9
npm install --save-dev neostandard eslint

git clone https://github.com/mcollina/skills
git -C skills checkout 3f067ed6a979

Works in

1. 2026-10-23
   ✓SAFE B 89 / 100

   first audit · source 3f067ed6a979

Questions about linting-neostandard-eslint9

• github.com/mcollina/skills/tree/main/skills/linting-neostandard- — the audited source at commit 3f067ed6a979 and every finding aboveObserved · 23 Oct 2026

Spotted something wrong? Report a correction · Methodology