ruff-0-15-18

name	ruff-0-15-18
description	Ruff 0.15.18 — extremely fast Python linter and code formatter written in Rust. Use this skill whenever the user mentions ruff, linting Python, formatting Python code, ruff check, ruff format, pyproject.toml lint config, Flake8 replacement, Black replacement, isort replacement, or any Python code quality task involving ruff configuration, rule selection, or CI integration. Covers `ruff check`, `ruff format`, `ruff rule`, `ruff config`, `ruff analyze graph`, and `ruff server` (LSP).
metadata	{"tags":["python","linting","formatting","code-quality"]}

ruff 0.15.18

Overview

Ruff is an extremely fast Python linter and code formatter written in Rust, designed as a drop-in replacement for Flake8 (plus dozens of plugins), Black, isort, pydocstyle, pyupgrade, autoflake, and more — executing tens to hundreds of times faster than any individual tool.

Version 0.15.18 supports Python 3.7 through 3.15, includes over 900 built-in lint rules across 30+ linter plugins (Pyflakes, pycodestyle, flake8-bugbear, isort, etc.), and a Black-compatible formatter. New in this release: ruff analyze graph for dependency mapping, human-readable rule names in CLI output, and improved __init__.py import fix safety in preview mode.

Usage

Installation

# Via uv (recommended)
uv tool install ruff@0.15.18

# Or ephemeral via uvx
uvx ruff check        # Lint current directory
uvx ruff format       # Format current directory

# Via pip
pip install ruff==0.15.18

# Standalone installer (macOS/Linux)
curl -LsSf https://astral.sh/ruff/0.15.18/install.sh | sh