Keyboard shortcuts

Press ← or → to navigate between chapters

Press S or / to search in the book

Press ? to show this help

Press Esc to hide this help

Installation

Badness is distributed as a single binary, badness. The current version is 0.7.0. It is available from several sources:

  • crates.io: cargo install badness
  • npm: npm install -g badness (bundles a prebuilt binary)
  • PyPI: uv tool install badness/pipx install badness
  • Prebuilt binaries: from the releases page
  • VS Code/Open VSX: the Badness extension (also on Open VSX; works in Positron and Cursor)

The editor extension bundles a platform-specific badness binary and starts the language server automatically, so no separate CLI install is required. See Editor Setup for configuration.

From Source

Badness is written in Rust. With a Rust toolchain installed, build from a checkout:

git clone https://github.com/jolars/badness
cd badness
cargo build --release

The binary lands at target/release/badness. Copy it onto your PATH, or run it in place.

To install it into Cargo’s bin directory instead:

cargo install --path .

Verifying the Install

badness --version

This should print badness 0.7.0.