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Documentation Index

Fetch the complete documentation index at: https://docs.qlty.sh/llms.txt

Use this file to discover all available pages before exploring further.

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Summary

FeatureStatusNotes
Maintainability✔Complexity, duplication, code smells
Linting✔
Auto-formatting✔
Custom checks✔
Security scanning✔AppSec, dependencies, and secrets
Code metrics✔
Code coverage✔

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Details

Maintainability
Complexity✔Aka cognitive complexity
Cyclomatic complexity✔
Identical code duplication✔
Similar code duplication✔
Code smells✔
Linters
ESLint✔JavaScript and TypeScript linter
OXC✔Fast JavaScript/TypeScript linter
Knip✔Find unused files, dependencies and exports
Biome✔Unified toolkit for web projects
Auto-formatters
Prettier✔Opinionated code formatter
Biome✔Includes formatting capabilities
Custom checks
ast-grep✔
Semgrep✔
ripgrep✔
Security scanning
ESLint with security rules✔AppSec (SAST)
Gitleaks✔Secrets scanning
OSV-Scanner✔Dependency scanning (SCA)
Semgrep✔AppSec (SAST)
Trivy✔Dependency scanning (SCA)
TruffleHog✔Secrets scanning
Code coverage
Jest✔
Vitest✔
LCOV coverage format✔
Cobertura coverage format✔

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File extensions

By default, TypeScript files are defined as: 
[file_types.typescript]
globs = ["*.ts", "*.mts", "*.cts"]
interpreters = ["ts-node", "deno"]

[file_types.tsx]
globs = ["*.tsx", "*.mtsx", "*.ctsx"]
These patterns can be overridden from qlty.toml.

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Supported TypeScript versions

We officially support TypeScript 3.0 and later for maintainability checks and code coverage. Each plugin may have its own version requirements.