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A simple program which checks Python source files for errors

A plugin for Flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycodestyle.

docstring style checker

HTML template formatter and linter for Django, Jinja, Twig, Nunjucks, Handlebars, Liquid, Go templates, Mustache, Tera, Askama and Angular. Formats markup and template syntax together, and lints for accessibility, correctness and style. CLI, pre-commit hook and VS Code extension.

Removes unused imports and unused variables as reported by pyflakes

A RuboCop extension focused on enforcing Rails best practices and coding conventions.

plpgsql_check is a linter tool (does source code static analyze) for the PostgreSQL language plpgsql (the native language for PostgreSQL store procedures).

An extension of RuboCop focused on code performance checks.

The Type Linter for JS

The Exakat Engine : smart static analysis for PHP

Dlint is a tool for encouraging best coding practices and helping ensure we're writing secure Python code.

Bears for coala

An automated code linting bot that integrates various code lint tools with github pull requests.

Checks syntax of reStructuredText and code blocks nested within it

:rocket: The ultimate linter and formatter for removing unused import statements in your code.

Linter for dangerous Postgres migration patterns in Diesel and SQLx. Prevents downtime caused by unsafe schema changes.

A plugin for flake8 integrating Mypy.

An extendable and customisable Zig linter that is integrated from source into your build.zig.

🇺🇦🇵🇱 A static analysis tool for OpenTelemetry Collector configurations. Built on OPA/Rego, it validates your pipelines, receivers, processors, and exporters against customizable policy rules – catching misconfigurations before they reach production

Security-focused linter for Docker Compose files. Catches dangerous misconfigurations before they reach production. Grounded in OWASP and CIS Docker Benchmark.

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

All-in-one Python template. One click. Everything included.

Raincoat has you covered when you can't stay DRY

A static analyzer and linter for Zig

Static analyzer for Postgres Row-Level Security — 67 lint rules covering tenant and per-user row-scoping bugs, performance traps, and hygiene; 20 mechanically auto-fixable; semantic policy-diff command for CI gating; pytest plugin for RLS isolation tests.

Yet Another Linter Aggregator

This server enables AI assistants to run Xcode tests, perform linter analysis, and provide detailed feedback on iOS projects through structured, actionable reports.

LLM readiness linter for websites. Audits robots.txt, llms.txt, Schema.org, and content density on a 0-100 scale. Includes MCP server. Published on PyPI: pip install context-cli.

Safety-first PostgreSQL migration engine for Node.js — advisory locks, drift detection, checksum verification, 10 lint rules, CLI, and GitHub Action

Read-only static audit skill for Python projects (Ruff + Vulture + Radon + Pylint via uvx). Generates a single Markdown health report with a deterministic A–F grade and 3-item action plan. 100% pass rate vs 29% baseline.