macOS
brew install harperlocal Homebrew formula metadata
brew
harper のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。
インストール
brew install harperlocal Homebrew formula metadata
sudo apk add harperAlpine Linux edge package indexes · harper · ソース: dl-cdn.alpinelinux.org
nix profile install nixpkgs#harpernixpkgs package indexes · pkgs/by-name/ha/harper/package.nix · ソース: api.github.com
sudo pacman -S harperArch Linux sync databases · harper · ソース: geo.mirror.pkgbuild.com
scoop install main/harperScoop official bucket manifest trees · bucket/harper.json · ソース: api.github.com
winget install --id Automattic.harper-ls -eWindows Package Manager source index · Automattic.harper-ls · ソース: cdn.winget.microsoft.com
概要
Grammar Checker for Developers
履歴
Harper is an offline, privacy-oriented English grammar checker for developers and technical writers. It began as a Rust-powered grammar and spell-checking engine, then grew into a multi-surface project with a language server, CLI, WebAssembly package, browser extensions, editor integrations, and an Obsidian integration.
The repository history begins in October 2023 with experiments around highlighting, spelling, capitalization, and a Wagner-Fischer edit-distance implementation. By January 2024 the project was tagging early releases and packaging separate components such as harper-core and harper-ls.
Harper's README explains its design motivation as a response to expensive, network-bound, and heavy grammar checkers. The author describes Harper as a private tool that runs locally, lints quickly, and avoids sending writing to remote services. The project later moved under the Automattic GitHub organization, while the public repository retained its Rust workspace structure and developer-facing integrations.
Harper reached users through developer tools rather than only through a standalone writing app. Official language-server docs list package-manager and ecosystem distribution through Homebrew, Scoop, Arch, Nixpkgs, Cargo, and GitHub release binaries. The same docs show editor-oriented adoption through LSP support and integrations for Visual Studio Code, Neovim, Helix, Emacs, Zed, Sublime Text, Markdown, comments in programming languages, and related writing surfaces.
The 1.0.0 release notes framed the milestone around a stable API and noted significant pre-1.0 usage across Chrome, Obsidian, VS Code, Neovim, and other integrations. That release made Harper more credible as a library and embedded grammar-checking component, not only as an end-user binary.
The Homebrew package exposes `harper-cli` and `harper-ls`. In editor workflows, `harper-ls` provides Language Server Protocol diagnostics, dictionaries, code actions, ignore comments, rule configuration, dialect selection, and support for many programming and markup languages.
Harper's architecture makes it useful in both interactive and embedded contexts: the language server serves editors, the CLI fits scripts and package-manager installs, and `harper.js`/WebAssembly supports local linting in web or desktop applications.
Harper is a useful package-manager case because it is simultaneously a Rust CLI, a language server, and a library ecosystem. A package needs to expose developer-facing executables while matching the upstream release cadence and keeping integrations compatible with editor/LSP expectations.
It also represents a broader packaging trend: privacy-preserving local AI-adjacent writing tools that avoid hosted services but still integrate into developer editors, docs workflows, and programmable text-processing environments.
セキュリティ状態
narrow executable package without higher-risk signals.
リスク グリーン · 信頼度 低 · appliance
エージェントに無人実行させる前に、このツールが平文の認証情報を読むか、リモート状態を書き込むか、成果物を公開するか、プラグインを起動するかを確認してください。
実行可能ファイル
| コマンド | 種類 | 公開範囲 | メモ |
|---|---|---|---|
harper-cli | cli | グローバル実行可能ファイル | |
harper-ls | cli | グローバル実行可能ファイル |
鮮度
これらの信号は、ページ生成時期、パッケージマネージャの活動、上流リリース比較を分けて示します。バージョン遅れは、証拠 URL と比較可能なバージョンがある場合だけ警告されます。
https://github.com/Automattic/harper
インストールメタデータ
| パッケージキー | brew:harper |
|---|---|
| バージョン | 2.6.0 |
| パッケージマネージャ | Homebrew |
| パッケージマネージャページ | https://formulae.brew.sh/formula/harper |
| ホームページ | https://writewithharper.com |
| リポジトリ | https://github.com/Automattic/harper |
| 上流ドキュメント | https://writewithharper.com/docs/integrations/language-server |
| ライセンス | Apache-2.0 |
| ソースアーカイブ | https://github.com/Automattic/harper/archive/refs/tags/v2.6.0.tar.gz |
| 最終更新 | 2026-06-24T19:03:05Z |
| Pulse | updated |
| ビルド依存関係 | rust |
| Bottle | 利用可能 (対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | 未定義 |
| サービス | 宣言なし |
レジストリ情報
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | harper |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
ソースデータベース一致
一致は外部パッケージマネージャインデックスから取得され、ローカルの Automic Vault パッケージリンクとは分けて表示されます。
harper
nix profile install nixpkgs#harperharper 2.1.0-r0
English grammar checker
https://github.com/Automattic/harper
sudo apk add harperharper 2.4.0-1
The Grammar Checker for Developers
https://github.com/Automattic/harper
sudo pacman -S harpermain/harper
scoop install main/harperAutomattic.harper-ls
winget install --id Automattic.harper-ls -eソース経路
このページは scripts/generate-pkg-sqlite.py が生成した非公開のパッケージ SQLite アーティファクトから av-web によって提供されます。
View the package source record on GitHub.