Badness

Badness is a language server, formatter, and linter for LaTeX, built on a lossless concrete syntax tree.

It parses LaTeX once and serves three tools from that tree:

Formatter (badness format): deterministic, rule-based layout.
Linter (badness lint): diagnostics with source snippets.
Language server (badness lsp): both, live in your editor.

The architecture follows rust-analyzer: a generic, error-tolerant, hand-written parser produces a lossless tree, semantics are layered on top as a separate concern, and recomputation is incremental. badness never requires resolving macros or catcodes to succeed—anything it cannot statically recognize degrades to generic nodes rather than a crash. Two properties hold by construction and are enforced as tests: losslessness (the tree reconstructs the input byte-for-byte) and idempotence (formatting an already formatted file changes nothing).

Installation

Badness 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 works in Positron and Cursor)
From source: cargo install --path . in a checkout

The VS Code/Open VSX extension bundles the badness binary and starts the language server automatically when you open a .tex file.

Usage

# Format a file in place (or stdin → stdout with no path)
badness format paper.tex

# Verify formatting without writing—exits non-zero if anything would change
badness format --check paper.tex

# Lint, reporting parse diagnostics
badness lint paper.tex

# Run the language server over stdio
badness lsp

Formatting is configurable via a TOML file named badness.toml. See the documentation for the full reference.

The language server runs over stdio (badness lsp); see the editor setup guide for Neovim and VS Code wiring.

Documentation

Full documentation lives at https://badness.dev/ (built with mdBook from docs/).

Contributing

See CONTRIBUTING.md.

License

MIT

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

badness-0.10.0.tar.gz (1.5 MB view details)

Uploaded Jul 16, 2026 Source

Built Distributions

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

badness-0.10.0-py3-none-win_arm64.whl (2.9 MB view details)

Uploaded Jul 16, 2026 Python 3Windows ARM64

badness-0.10.0-py3-none-win_amd64.whl (3.1 MB view details)

Uploaded Jul 16, 2026 Python 3Windows x86-64

badness-0.10.0-py3-none-musllinux_1_2_x86_64.whl (3.3 MB view details)

Uploaded Jul 16, 2026 Python 3musllinux: musl 1.2+ x86-64

badness-0.10.0-py3-none-musllinux_1_2_aarch64.whl (3.0 MB view details)

Uploaded Jul 16, 2026 Python 3musllinux: musl 1.2+ ARM64

badness-0.10.0-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (3.2 MB view details)

Uploaded Jul 16, 2026 Python 3manylinux: glibc 2.17+ x86-64

badness-0.10.0-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl (3.1 MB view details)

Uploaded Jul 16, 2026 Python 3manylinux: glibc 2.17+ ARM64

badness-0.10.0-py3-none-macosx_11_0_arm64.whl (2.9 MB view details)

Uploaded Jul 16, 2026 Python 3macOS 11.0+ ARM64

badness-0.10.0-py3-none-macosx_10_12_x86_64.whl (3.0 MB view details)

Uploaded Jul 16, 2026 Python 3macOS 10.12+ x86-64

File details

Details for the file badness-0.10.0.tar.gz.

File metadata

Download URL: badness-0.10.0.tar.gz
Upload date: Jul 16, 2026
Size: 1.5 MB
Tags: Source
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0.tar.gz
Algorithm	Hash digest
SHA256	`21c88acd38e3122a58777062837417652bf346b5e0e039beea64156b17e807b8`
MD5	`72c3ff7dcf44a0ab3d482b09f0febec2`
BLAKE2b-256	`f4accd1de2a92a660552cdc32f897e6b1d02d759651871a34a61e645bf075dad`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0.tar.gz:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0.tar.gz
- Subject digest: 21c88acd38e3122a58777062837417652bf346b5e0e039beea64156b17e807b8
- Sigstore transparency entry: 2181730249
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

File details

Details for the file badness-0.10.0-py3-none-win_arm64.whl.

File metadata

Download URL: badness-0.10.0-py3-none-win_arm64.whl
Upload date: Jul 16, 2026
Size: 2.9 MB
Tags: Python 3, Windows ARM64
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0-py3-none-win_arm64.whl
Algorithm	Hash digest
SHA256	`1e113d1149ed83218c8c57a8b9a6ae5d7e684eece984c6939891c80fdc2ec37d`
MD5	`39f92d3bc8c340460f7a392d16af6b66`
BLAKE2b-256	`ef1aa7e41a84700b99e10240bc223ebab659c68445f07ec5aa7354ef024fce74`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0-py3-none-win_arm64.whl:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0-py3-none-win_arm64.whl
- Subject digest: 1e113d1149ed83218c8c57a8b9a6ae5d7e684eece984c6939891c80fdc2ec37d
- Sigstore transparency entry: 2181731829
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

File details

Details for the file badness-0.10.0-py3-none-win_amd64.whl.

File metadata

Download URL: badness-0.10.0-py3-none-win_amd64.whl
Upload date: Jul 16, 2026
Size: 3.1 MB
Tags: Python 3, Windows x86-64
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0-py3-none-win_amd64.whl
Algorithm	Hash digest
SHA256	`dcfa7094a9113d56f408f2a599c415119d332427802275e3b9e191488c980fcb`
MD5	`439af615212585b40a4c0e81a0db68d2`
BLAKE2b-256	`159e64499fddc5efe9bd925d7049cac0ee559f2b96528dd3ccf42e370e974d56`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0-py3-none-win_amd64.whl:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0-py3-none-win_amd64.whl
- Subject digest: dcfa7094a9113d56f408f2a599c415119d332427802275e3b9e191488c980fcb
- Sigstore transparency entry: 2181732991
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

File details

Details for the file badness-0.10.0-py3-none-musllinux_1_2_x86_64.whl.

File metadata

Download URL: badness-0.10.0-py3-none-musllinux_1_2_x86_64.whl
Upload date: Jul 16, 2026
Size: 3.3 MB
Tags: Python 3, musllinux: musl 1.2+ x86-64
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0-py3-none-musllinux_1_2_x86_64.whl
Algorithm	Hash digest
SHA256	`51eaca29d4727963a9517b6c8b9e8ca6c28c5d23e8cf672102d3f2b9e285fe59`
MD5	`cebbe92f9bf28210a0a767ffaabdf721`
BLAKE2b-256	`b4503ad0226e704e585d3891ba65e1aca7fd91c0061e2feb4b394aef637d4cfc`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0-py3-none-musllinux_1_2_x86_64.whl:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0-py3-none-musllinux_1_2_x86_64.whl
- Subject digest: 51eaca29d4727963a9517b6c8b9e8ca6c28c5d23e8cf672102d3f2b9e285fe59
- Sigstore transparency entry: 2181732206
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

File details

Details for the file badness-0.10.0-py3-none-musllinux_1_2_aarch64.whl.

File metadata

Download URL: badness-0.10.0-py3-none-musllinux_1_2_aarch64.whl
Upload date: Jul 16, 2026
Size: 3.0 MB
Tags: Python 3, musllinux: musl 1.2+ ARM64
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0-py3-none-musllinux_1_2_aarch64.whl
Algorithm	Hash digest
SHA256	`098c59c42274680d1932c4e79bf8c50e1640ef982e272f8958ba38ec1f1d27ed`
MD5	`56ee4b61753ac7a2d493ca7bf1bc570f`
BLAKE2b-256	`bcba266b60b85c609a774b616ef519541b9f7691e07dfcf20ed3503d5d4e8aef`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0-py3-none-musllinux_1_2_aarch64.whl:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0-py3-none-musllinux_1_2_aarch64.whl
- Subject digest: 098c59c42274680d1932c4e79bf8c50e1640ef982e272f8958ba38ec1f1d27ed
- Sigstore transparency entry: 2181732054
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

File details

Details for the file badness-0.10.0-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.

File metadata

Download URL: badness-0.10.0-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
Upload date: Jul 16, 2026
Size: 3.2 MB
Tags: Python 3, manylinux: glibc 2.17+ x86-64
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
Algorithm	Hash digest
SHA256	`96efa3e235d35dd36204163fe29f9a6afe4ca3e9fa8c109d2f5cdea222c6226e`
MD5	`a44e5ba3c0764eccbb5e65592b4843c8`
BLAKE2b-256	`22dc4bf82b99108df74c500df5864b19dd25845d8ed6ef4469448816ec676e8a`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
- Subject digest: 96efa3e235d35dd36204163fe29f9a6afe4ca3e9fa8c109d2f5cdea222c6226e
- Sigstore transparency entry: 2181731361
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

File details

Details for the file badness-0.10.0-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl.

File metadata

Download URL: badness-0.10.0-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
Upload date: Jul 16, 2026
Size: 3.1 MB
Tags: Python 3, manylinux: glibc 2.17+ ARM64
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
Algorithm	Hash digest
SHA256	`882afbe8a124fda431f9c72511c1d7c5328339529bb27b5989d4cab84d2820fa`
MD5	`eba72c77a82e70a74c027bd2182a1f21`
BLAKE2b-256	`411b9215a9035e3d962486886a24951df56d24b54f853af28c143da5983cd246`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
- Subject digest: 882afbe8a124fda431f9c72511c1d7c5328339529bb27b5989d4cab84d2820fa
- Sigstore transparency entry: 2181730578
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

File details

Details for the file badness-0.10.0-py3-none-macosx_11_0_arm64.whl.

File metadata

Download URL: badness-0.10.0-py3-none-macosx_11_0_arm64.whl
Upload date: Jul 16, 2026
Size: 2.9 MB
Tags: Python 3, macOS 11.0+ ARM64
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0-py3-none-macosx_11_0_arm64.whl
Algorithm	Hash digest
SHA256	`84d3b18ff66a6b379e70e0b4bb8e50300a0e94d6fc42cc3e635598ea9865d337`
MD5	`6c14bd0540f45488551720fdaceb4b49`
BLAKE2b-256	`cd36c3433bc3e1b4ca9b2200f6ba921b596ffd5c9f49da16456063eb32638a6b`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0-py3-none-macosx_11_0_arm64.whl:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0-py3-none-macosx_11_0_arm64.whl
- Subject digest: 84d3b18ff66a6b379e70e0b4bb8e50300a0e94d6fc42cc3e635598ea9865d337
- Sigstore transparency entry: 2181732657
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

File details

Details for the file badness-0.10.0-py3-none-macosx_10_12_x86_64.whl.

File metadata

Download URL: badness-0.10.0-py3-none-macosx_10_12_x86_64.whl
Upload date: Jul 16, 2026
Size: 3.0 MB
Tags: Python 3, macOS 10.12+ x86-64
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.12

File hashes

Hashes for badness-0.10.0-py3-none-macosx_10_12_x86_64.whl
Algorithm	Hash digest
SHA256	`9c491e14c49b9380034c8b7a2611fe2faae45e19dba4af83bd2f3d4e15d6b118`
MD5	`61857ce3904c362f7bb741140274693d`
BLAKE2b-256	`69acada2483a8c066aed001a703b587b14bdc64dfdc6b0a5e02aa343ca80c148`

See more details on using hashes here.

Provenance

The following attestation bundles were made for badness-0.10.0-py3-none-macosx_10_12_x86_64.whl:

Publisher: publish-pypi.yml on jolars/badness

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: badness-0.10.0-py3-none-macosx_10_12_x86_64.whl
- Subject digest: 9c491e14c49b9380034c8b7a2611fe2faae45e19dba4af83bd2f3d4e15d6b118
- Sigstore transparency entry: 2181731114
- Sigstore integration time: Jul 16, 2026
Source repository:
- Permalink: jolars/badness@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Branch / Tag: refs/tags/v0.10.0
- Owner: https://github.com/jolars
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-pypi.yml@d06c6d9fac987b1c8008bb1952d2086d1b5be730
- Trigger Event: push

Release history Release notifications | RSS feed

0.16.0

Aug 14, 2026

0.15.0

Aug 7, 2026

0.14.0

Aug 6, 2026

0.13.0

Aug 1, 2026

0.12.0

Jul 30, 2026

0.11.0

Jul 20, 2026

This release

0.10.0

Jul 16, 2026

0.9.0

Jul 14, 2026

0.8.0

Jul 11, 2026

0.7.0

Jul 8, 2026

0.6.0

Jul 6, 2026

0.5.0

Jul 1, 2026

0.4.0

Jun 23, 2026

0.3.0

Jun 21, 2026

0.2.0

Jun 12, 2026

0.1.0

Jun 12, 2026

badness 0.10.0

Badness

Installation

Usage

Documentation

Contributing

License

Project links

Key dates

1 maintainer

Credits

GitHub Statistics

License

Requires

Tags

Classifiers

Download files

Source Distribution

Built Distributions

File details

File metadata

File hashes

Provenance

File details

File metadata

File hashes

Provenance

File details

File metadata

File hashes

Provenance

File details

File metadata

File hashes

Provenance

File details

File metadata

File hashes

Provenance

File details

File metadata

File hashes

Provenance

File details

File metadata

File hashes

Provenance

File details

File metadata

File hashes

Provenance

File details

File metadata

File hashes

Provenance

Release history Release notifications | RSS feed