hk

AsciiDoc ​

asciidoctor ​

AsciiDoc syntax validator and processor

Build Systems ​

buildifier-format ​

Formatter for Bazel BUILD, WORKSPACE, and Starlark files

  • Glob: **/BUILD, **/BUILD.bazel, WORKSPACE, WORKSPACE.bazel, MODULE.bazel, **/*.bzl, **/*.star, **/*.sky

buildifier-lint ​

Linter for Bazel BUILD, WORKSPACE, and Starlark files

  • Glob: **/BUILD, **/BUILD.bazel, WORKSPACE, WORKSPACE.bazel, MODULE.bazel, **/*.bzl, **/*.star, **/*.sky

CSS ​

stylelint ​

CSS linter

  • Glob: **/*.css, **/*.scss, **/*.sass, **/*.less

Configuration ​

sort-package-json ​

Sort package.json keys

  • Glob: **/package.json

Data Formats ​

buf-format ​

Protocol Buffers formatter

  • Glob: **/*.proto

buf-lint ​

Protocol Buffers linter

  • Glob: **/*.proto

jq ​

JSON processor

  • Glob: **/*.json

sql-fluff ​

SQL linter and formatter

  • Glob: **/*.sql

taplo ​

TOML linter

  • Glob: **/*.toml

taplo-format ​

TOML formatter

  • Glob: **/*.toml

tombi ​

TOML linter

  • Glob: **/*.toml

tombi-format ​

TOML formatter

  • Glob: **/*.toml

xmllint ​

XML validator

  • Glob: **/*.xml

yamlfmt ​

YAML formatter

  • Glob: **/*.yml, **/*.yaml

yamllint ​

YAML linter

  • Glob: **/*.yml, **/*.yaml

yq ​

YAML processor

  • Glob: **/*.yaml, **/*.yml

EditorConfig ​

editorconfig-checker ​

Validate files against EditorConfig rules

Elixir ​

mix-compile ​

Compile Elixir with Mix

  • Glob: **/*.ex

mix-fmt ​

Format Elixir with Mix

  • Glob: **/*.ex, **/*.exs

mix-test ​

Test Elixir with Mix

  • Glob: **/*.ex, **/*.exs

Go ​

err-check ​

Error handling checker

  • Glob: **/*.go

go-fmt ​

Go formatter

  • Glob: **/*.go

go-fumpt ​

Strict Go formatter

  • Glob: **/*.go

go-imports ​

Go import management

  • Glob: **/*.go

go-lines ​

Long line fixer

  • Glob: **/*.go

go-sec ​

Security scanner

  • Glob: **/*.go

go-vet ​

Go code vetting

  • Glob: **/*.go

go-vuln-check ​

Vulnerability scanner

  • Glob: **/*.go

golangci-lint ​

Go meta-linter

  • Glob: **/*.go

gomod-tidy ​

Go module maintenance

  • Glob: **/go.mod

revive ​

Fast Go linter

  • Glob: **/*.go

staticcheck ​

Go static analysis

  • Glob: **/*.go

Infrastructure ​

actionlint ​

GitHub Actions workflow linter

  • Glob: .github/workflows/*.yml, .github/workflows/*.yaml

dclint ​

Docker Compose linter

  • Glob: **/compose*.yml, **/compose*.yaml, **/docker-compose*.yml, **/docker-compose*.yaml

ghalint-action ​

GitHub Actions action linter

  • Glob: **/action.*

ghalint-workflow ​

GitHub Actions workflow linter

  • Glob: .github/workflows/*

hadolint ​

Dockerfile linter

  • Glob: **/Dockerfile*

hclfmt ​

Hashicorp's hclfmt

  • Glob: **/*.hcl

mise ​

mise-en-place's built-in formatter and linter

  • Glob: mise.toml, mise.*.toml, .mise.toml, .mise.*.toml, mise/config.toml, mise/config.*.toml, .mise/config.toml, .mise/config.*.toml, .config/mise.toml, .config/mise.*.toml, .config/mise/config.toml, .config/mise/config.*.toml, .config/mise/mise.toml, .config/mise/mise.*.toml, .config/mise/conf.d/*.toml

pinact ​

Pin GitHub Actions to commit SHA for security

  • Glob: .github/workflows/*, */action.*

pinact-update ​

Pin GitHub Actions to update actions to latest versions

  • Glob: .github/workflows/*, */action.*

pinact-update-v3 ​

Update GitHub Actions to latest versions using pinact v3

  • Glob: .github/workflows/*, */action.*

pinact-v3 ​

Pin GitHub Actions to commit SHA for security using pinact v3

  • Glob: .github/workflows/*, */action.*

terraform ​

Terraform formatter

  • Glob: **/*.tf, **/*.tfvars, **/*.tftest.hcl

tf-lint ​

Terraform linter

  • Glob: **/*.tf

tofu ​

OpenTofu formatter

  • Glob: **/*.tf, **/*.tfvars, **/*.tftest.hcl

zizmor ​

GitHub Actions security static analysis tool

  • Glob: .github/workflows/*.yml, .github/workflows/*.yaml, .github/dependabot.yml, **/action.yml, **/action.yaml

Java ​

google-java-format ​

Google Java Format

  • Glob: **/*.java

JavaScript/TypeScript ​

biome ​

Fast formatter and linter

  • Glob: **/*.js, **/*.jsx, **/*.ts, **/*.tsx, **/*.json

deno ​

Deno formatter

  • Glob: **/*.js, **/*.jsx, **/*.ts, **/*.tsx

deno-check ​

Deno type checker

  • Glob: **/*.js, **/*.jsx, **/*.ts, **/*.tsx

eslint ​

Pluggable JavaScript linter

  • Glob: **/*.js, **/*.jsx, **/*.ts, **/*.tsx

knip ​

Find unused files, dependencies, and exports

knip-strict ​

Find unused files, dependencies, and exports with strict mode enabled

ox-lint ​

Oxidation compiler linter

  • Glob: **/*.js, **/*.mjs, **/*.cjs, **/*.ts, **/*.mts, **/*.cts, **/*.jsx, **/*.tsx, **/*.vue, **/*.svelte, **/*.astro

oxfmt ​

Fast Rust-powered code formatter (Prettier compatible)

  • Glob: **/*.js, **/*.mjs, **/*.cjs, **/*.ts, **/*.mts, **/*.cts, **/*.jsx, **/*.tsx, **/*.mdx, **/*.vue, **/*.json, **/*.jsonc, **/*.json5, **/*.yaml, **/*.yml, **/*.toml, **/*.md, **/*.markdown, **/*.html, **/*.htm, **/*.css, **/*.scss, **/*.less, **/*.graphql, **/*.gql, **/*.handlebars, **/*.hbs

prettier ​

Opinionated code formatter

  • Glob: **/*.js, **/*.jsx, **/*.mjs, **/*.cjs, **/*.ts, **/*.tsx, **/*.mts, **/*.cts, **/*.css, **/*.scss, **/*.less, **/*.html, **/*.json, **/*.json5, **/*.jsonc, **/*.yaml, **/*.yml, **/*.markdown, **/*.markdown.mdx, **/*.md, **/*.graphql, **/*.handlebars, **/*.svelte, **/*.astro, **/*.htmlangular, **/*.vue

sherif ​

Opinionated, zero-config linter for TypeScript & JavaScript monorepos

  • Glob: **/package.json, **/pnpm-workspace.yaml

standard-js ​

JavaScript Standard Style

  • Glob: **/*.js, **/*.jsx, **/*.ts, **/*.tsx

tsc ​

TypeScript type checker

  • Glob: **/*.ts, **/*.tsx

tsserver ​

TypeScript language server diagnostics

  • Glob: **/*.ts, **/*.tsx

vp-check ​

Formats, lints, and type checks code together

  • Glob: **/*.js, **/*.mjs, **/*.cjs, **/*.ts, **/*.mts, **/*.cts, **/*.jsx, **/*.tsx, **/*.mdx, **/*.vue, **/*.svelte, **/*.astro, **/*.json, **/*.jsonc, **/*.json5, **/*.yaml, **/*.yml, **/*.md, **/*.markdown, **/*.html, **/*.htm, **/*.css, **/*.scss, **/*.less, **/*.graphql, **/*.gql, **/*.handlebars, **/*.hbs, **/*.toml

vp-fmt ​

Formats code with Oxfmt

  • Glob: **/*.js, **/*.mjs, **/*.cjs, **/*.ts, **/*.mts, **/*.cts, **/*.jsx, **/*.tsx, **/*.mdx, **/*.vue, **/*.json, **/*.jsonc, **/*.json5, **/*.yaml, **/*.yml, **/*.toml, **/*.md, **/*.markdown, **/*.html, **/*.htm, **/*.css, **/*.scss, **/*.less, **/*.graphql, **/*.gql, **/*.handlebars, **/*.hbs

vp-lint ​

Lints code with OxLint

  • Glob: **/*.js, **/*.mjs, **/*.cjs, **/*.ts, **/*.mts, **/*.cts, **/*.jsx, **/*.tsx, **/*.mdx, **/*.vue, **/*.svelte, **/*.astro

xo ​

JavaScript/TypeScript linter with great defaults

  • Glob: **/*.js, **/*.jsx, **/*.ts, **/*.tsx

Lua ​

luacheck ​

Lua linter

selene ​

Lua linter

stylua ​

Lua formatter

Markdown ​

contextlint ​

Rule-based linter for structured Markdown documents

markdown-lint ​

Markdown linter

  • Glob: **/*.md, **/*.markdown

mdschema ​

Schema-based Markdown documentation validator

rumdl ​

Markdown linter

  • Glob: **/*.md, **/*.markdown

rumdl-format ​

Markdown formatter

  • Glob: **/*.md, **/*.markdown

ryl-markdown ​

Lint YAML embedded in Markdown (front matter + fenced yaml blocks) with ryl

Nix ​

alejandra ​

Alternative Nix formatter

  • Glob: **/*.nix

deadnix ​

Scan Nix files for dead code

  • Glob: **/*.nix

nil ​

Nix Language server

  • Glob: **/*.nix

nix-fmt ​

Nix formatter

  • Glob: **/*.nix

nixf-diagnose ​

Nix linter based on libnixf

  • Glob: **/*.nix

nixpkgs-format ​

Nixpkgs formatter

  • Glob: **/*.nix

Other Languages ​

astro ​

Astro component checker

  • Glob: **/*.astro

clang-format ​

C/C++ formatter

  • Glob: **/*.c, **/*.h, **/*.cpp, **/*.hpp, **/*.cc, **/*.hh, **/*.cxx, **/*.hxx

cmake-format ​

Source code formatter for cmake listfiles

  • Glob: **/CMakeLists.txt, **/*.cmake

cpp-lint ​

C++ style checker

  • Glob: **/*.c, **/*.h, **/*.cpp, **/*.hpp, **/*.cc, **/*.hh, **/*.cxx, **/*.hxx

dprint ​

Pluggable code formatter

ktlint ​

Kotlin linter and formatter

  • Glob: **/*.kt

swiftlint ​

Swift style and conventions

  • Glob: **/*.swift

vacuum ​

Fast OpenAPI linter

  • Glob: **/*openapi*.yaml, **/*openapi*.yml, **/*openapi*.json, **/*swagger*.yaml, **/*swagger*.yml, **/*swagger*.json

PHP ​

php-cs ​

PHP coding standards

  • Glob: **/*.php

Package ​

aqua-update-checksum ​

create or update aqua checksums

  • Glob: {aqua,.aqua}.{yml,yaml}, {aqua,.aqua}/**/*.{yml,yaml}, aqua-checksums.json, {aqua,.aqua}/aqua-checksums.json

Pkl ​

pkl ​

Pkl configuration language

pkl-format ​

Pkl formatter

Python ​

black ​

Opinionated Python formatter

  • Glob: **/*.py

flake8 ​

Python style guide enforcement

  • Glob: **/*.py

isort ​

Python import sorter

  • Glob: **/*.py

mypy ​

Static type checker for Python

  • Glob: **/*.py, **/*.pyi

pylint ​

Python code analysis

  • Glob: **/*.py

python-check-ast ​

Validate Python syntax by parsing the AST

  • Glob: **/*.py

python-debug-statements ​

Detect debug statements in Python code

  • Glob: **/*.py

ruff ​

Fast Python linter

ruff-format ​

Fast Python formatter (part of ruff)

ty ​

Fast Python type checker

  • Glob: **/*.py, **/*.pyi

Ruby ​

brakeman ​

Security scanner for Rails

bundle-audit ​

Dependency security audit

  • Glob: **/Gemfile.lock

erb ​

ERB template linter

  • Glob: **/*.erb

fasterer ​

Performance suggestions

reek ​

Code smell detector

rubocop ​

Ruby style guide

  • Glob: **/*.rb, **/*.arb, **/*.axlsx, **/*.builder, **/*.gemfile, **/*.gemspec, **/*.jb, **/*.jbuilder, **/*.mspec, **/*.opal, **/*.pluginspec, **/*.podspec, **/*.rabl, **/*.rake, **/*.rbw, **/*.ru, **/*.ruby, **/*.schema, **/*.spec, **/*.thor, **/.irbrc, **/.pryrc, **/.simplecov, **/buildfile, **/Appraisals, **/Berksfile, **/Brewfile, **/Buildfile, **/Capfile, **/Dangerfile, **/Deliverfile, **/Fastfile, **/*Fastfile, **/Gemfile, **/Guardfile, **/Jarfile, **/Mavenfile, **/Podfile, **/Puppetfile, **/Rakefile, **/rakefile, **/Schemafile, **/Snapfile, **/Steepfile, **/Thorfile, **/Vagrantfile

rubocop-server ​

Ruby style guide (using RuboCop's --server mode)

  • Glob: **/*.rb, **/*.arb, **/*.axlsx, **/*.builder, **/*.gemfile, **/*.gemspec, **/*.jb, **/*.jbuilder, **/*.mspec, **/*.opal, **/*.pluginspec, **/*.podspec, **/*.rabl, **/*.rake, **/*.rbw, **/*.ru, **/*.ruby, **/*.schema, **/*.spec, **/*.thor, **/.irbrc, **/.pryrc, **/.simplecov, **/buildfile, **/Appraisals, **/Berksfile, **/Brewfile, **/Buildfile, **/Capfile, **/Dangerfile, **/Deliverfile, **/Fastfile, **/*Fastfile, **/Gemfile, **/Guardfile, **/Jarfile, **/Mavenfile, **/Podfile, **/Puppetfile, **/Rakefile, **/rakefile, **/Schemafile, **/Snapfile, **/Steepfile, **/Thorfile, **/Vagrantfile

sorbet ​

Type checker for Ruby

standard-rb ​

Ruby Standard Style

Rust ​

cargo-check ​

Fast Rust type checking

  • Glob: **/*.rs

cargo-clippy ​

Rust linter

  • Glob: **/*.rs

cargo-deny ​

Rust dependency linter

  • Glob: **/Cargo.toml, **/Cargo.lock, **/deny.toml, **/.deny.toml, **/deny.exceptions.toml, **/.deny.exceptions.toml

cargo-fmt ​

Rust code formatter

  • Glob: **/*.rs

rustfmt ​

Rust code formatter (standalone)

  • Glob: **/*.rs

Secrets ​

betterleaks ​

A Better Secrets Scanner built for configurability and speed

gitleaks ​

Secret scanner for Git repositories

kingfisher ​

Secret scanner with live validation and 1,000+ rules

Shell ​

shellcheck ​

Shell script analyzer

shellharden ​

The corrective bash syntax highlighter

shfmt ​

Shell formatter

Special Purpose ​

byte-order-marker ​

Detect UTF-8 BOM

check-added-large-files ​

Prevent committing large files

  • Glob: **/*

check-case-conflict ​

Detect case-insensitive filename conflicts

  • Glob: **/*

check-conventional-commit ​

Verify commit message matches conventional commits formatting

check-executables-have-shebangs ​

Verify executable files have shebang lines

check-merge-conflict ​

Detect merge conflict markers

Detect broken symlinks

  • Glob: **/*

cocogitto-commit-msg ​

Conventional commits linter

detect-private-key ​

Detect accidentally committed private keys

fix-smart-quotes ​

Replace smart quotes with regular quotes

harper ​

Grammar checker for prose and documentation

harper-commit-message ​

Grammar checker for commit message

hk-test ​

Run step-defined hk's tests

  • Glob: hk.pkl, .config/hk.pkl

just-format ​

Justfile formatter

  • Glob: **/justfile, **/*.just

lychee ​

Fast, async, stream-based link checker

mixed-line-ending ​

Detect and fix mixed line endings

newlines ​

Ensure files end with newline

no-commit-to-branch ​

Prevent direct commits to protected branches

textlint ​

Pluggable natural language linter

  • Glob: **/*.md, **/*.markdown, **/*.txt

trailing-whitespace ​

Detect and remove trailing whitespace

typos ​

Source code spell checker

vale ​

Prose linter for markup and code comments

Uncategorized ​

check-byte-order-marker ​

fix-byte-order-marker ​

YAML ​

ryl ​

Re-implementation of yamllint in Rust

MIT LicenseCopyright © 2026jdx.dev