linter

:pencil: A markup-aware linter for prose built with speed and extensibility in mind.

🔥 ~6x faster, stricter, configurable, extensible, and beautiful drop-in replacement for golint

An extensible multilanguage static code analyzer.

GritQL is a query language for searching, linting, and modifying code.

Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles: unused code, duplication, circular deps, complexity hotspots, architecture boundaries, design-system drift. Optional paid runtime layer (Fallow Runtime): hot-path review and cold-path deletion evidence from real production traffic.

SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.

Mago is a toolchain for PHP that aims to provide a set of tools to help developers write better code.

Laravel Pint is an opinionated PHP code style fixer for minimalists.

A highly opinionated, zero-configuration linter and formatter.

💎 Code quality CLI for universal linting, auto-formatting, security scanning, and maintainability

Ruby's bikeshed-proof linter and formatter 🚲

A (WIP) Extremely fast JavaScript and TypeScript linter and Rust crate

Download ScriptAnalyzer from PowerShellGallery

Every programmer needs a rubberduck. COM add-in for the VBA & VB6 IDE (VBE).

Linter for Dart.

The missing linter and lsp for AI coding assistants. Validate CLAUDE.md, AGENTS.md, SKILL.md, hooks, MCP. Plugin for all major IDEs included, with autofixes.

ESLint for AI Agents — AGENTS.md/CLAUDE.md 채점·진단·자동수정 | Position Risk Warning · Token Efficiency · Security Check

In today's rapidly evolving landscape, vale-ai-tells is a comprehensive, cutting-edge Vale style package that empowers writers to seamlessly delve into the rich tapestry of AI tells. It's not just a rule set; it's a game-changer that supercharges your prose, unlocks new possibilities, and really lands. Ship cleaner prose. Full stop. 🚀

Static analysis for AI agent configs, tool descriptions, and system prompts — catches vague tool descriptions, missing stop conditions, and schema gaps before they reach runtime. Zero-LLM, deterministic checks, built for CI.

The linter for your agent harness. Works with Claude Code, Codex, and Cursor.