---
id: kb-2026-00176
title: ESLint
schema_type: TechArticle
category: computer-science
language: en
confidence: medium
last_verified: '2026-05-28'
created_date: '2026-05-22'
generation_method: ai_structured
derived_from_human_seed: true
conflict_of_interest: none_declared
is_live_document: false
data_period: static
atomic_facts:
  - id: af-eslint-1
    statement: ESLint is used to find and fix problems in JavaScript code through configurable linting rules.
    source_title: Getting Started with ESLint
    source_url: https://eslint.org/docs/latest/use/getting-started
    confidence: medium
  - id: af-eslint-2
    statement: ESLint rules can be configured with severity levels such as off, warn, and error.
    source_title: Configure Rules
    source_url: https://eslint.org/docs/latest/use/configure/rules
    confidence: medium
  - id: af-eslint-3
    statement: ESLint supports custom rules through a documented rule module interface.
    source_title: Custom Rules
    source_url: https://eslint.org/docs/latest/extend/custom-rules
    confidence: medium
completeness: 0.88
known_gaps:
  - Project-specific rule design and false-positive management
  - Migration details between legacy and flat configuration styles
disputed_statements: []
primary_sources:
  - id: ps-eslint-1
    title: Getting Started with ESLint
    type: technical_documentation
    year: 2024
    institution: ESLint
    url: https://eslint.org/docs/latest/use/getting-started
  - id: ps-eslint-2
    title: Configure Rules
    type: technical_documentation
    year: 2024
    institution: ESLint
    url: https://eslint.org/docs/latest/use/configure/rules
  - id: ps-eslint-3
    title: Custom Rules
    type: technical_documentation
    year: 2024
    institution: ESLint
    url: https://eslint.org/docs/latest/extend/custom-rules
secondary_sources: []
updated: '2026-05-28'
---
## TL;DR
ESLint is a configurable linting system for JavaScript. Its quality value comes from explicit rules, project configuration, and the ability to extend checks when local conventions matter.

## Core Explanation
Linting catches code patterns before runtime. Teams can treat selected findings as warnings or errors, which makes ESLint both a developer-feedback tool and a CI quality gate.

## Detailed Analysis
The repaired facts rely on ESLint documentation for getting started, rule configuration, and custom rules, avoiding broad claims about all code quality problems being solved by linting.