# cafeobj を Homebrew, apt でインストール

cafeobj 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

```sh
sudo av install brew:cafeobj
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install cafeobj
```

  証拠: local Homebrew formula metadata

### Linux

- Ubuntu apt (92%):

```sh
sudo apt install cafeobj
```

  証拠: Ubuntu 24.04 LTS package indexes: cafeobj from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

## パッケージ情報

- **パッケージキー:** brew:cafeobj
- **パッケージマネージャ:** Homebrew
- **バージョン:** 1.6.2
- **ソース概要:** New generation algebraic specification and programming language
- **ホームページ:** <https://cafeobj.org/>
- **リポジトリ:** <https://github.com/CafeOBJ/cafeobj>
- **最終更新:** 2026-07-29T08:54:41+01:00
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- cafeobj (エイリアス)

## インストール挙動

- Bottle: 利用不可

## バージョンと鮮度

- ページ生成日: 2026-08-03
- マネージャ版: 1.6.2
## プロジェクトの歴史と使われ方

CafeOBJ is an algebraic specification and programming language used in formal-methods work, theorem-style verification, and executable specifications.

### プロジェクトの歴史

The official interpreter README identifies CafeOBJ as a new-generation algebraic specification and programming language and as a direct successor of OBJ. It inherits OBJ features such as mixfix syntax, subtyping, module composition, parameterized modules, views, and module expressions, while adding rewriting logic, hidden algebra, and combinations of those paradigms.

The open interpreter source is maintained in Common Lisp and can be built with Allegro CL, SBCL, or CLISP. The GitHub repository was created in 2017, while the README for version 1.6.0 is dated 2020-01-20 and the repository carries later 1.6.x tags.

### 採用の歴史

CafeOBJ's adoption is specialized: it lives in the formal specification and verification community rather than mainstream application development. Packaging in Homebrew and Ubuntu makes it easier for researchers, students, and toolchain curators to install the interpreter without manually building a Lisp system.

### 使われ方

Users write formal specifications, load them into the CafeOBJ processor, reduce terms, inspect modules, and construct proof scores. The official introductory material walks beginners from describing specifications to verification using simple natural-number examples.

### パッケージ好きにとっての重要性

CafeOBJ matters to package-history nerds because it is one of the long-tail formal-methods languages that package managers preserve alongside mainstream compilers. Its Homebrew formula keeps a Common Lisp-based research language installable on modern developer machines.

### タイムライン

- 2017: Public CafeOBJ interpreter repository created on GitHub.
- 2020: README marks CafeOBJ interpreter version 1.6.0 dated 2020-01-20.
- 2020s: 1.6.x tags continue the interpreter line.
- Present: Homebrew and Ubuntu package the interpreter for easier installation.

### Related projects

- OBJ is the direct predecessor named by the official CafeOBJ README.
- CafeOBJ sits near other algebraic specification and rewriting-logic tools, but its official documentation frames its own lineage through OBJ, rewriting logic, hidden algebra, and proof scores.

### ソース

- <https://api.github.com/repos/CafeOBJ/cafeobj>
- <https://api.github.com/repos/CafeOBJ/cafeobj/tags>
- <https://cafeobj.org/files/manual.pdf>
- <https://cafeobj.org/intro/en/index.html>
- <https://github.com/CafeOBJ/cafeobj#readme>


## セキュリティノート

generalized runtime or code generation signal.

- **Geiger リスク:** yellow / 中
- generalized runtime or code generation signal

## 他のパッケージマネージャ記録

- Ubuntu apt - cafeobj - 1.6.0-2build1: normalized package name match | Ubuntu 24.04 LTS package indexes: cafeobj from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | new generation algebraic specification and programming language | http://cafeobj.org/
- Ubuntu apt - cafeobj-mode - 1.6.0-2build1: normalized package name match | Ubuntu 24.04 LTS package indexes: cafeobj-mode from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Emacs major mode for editing CafeOBJ source code | http://cafeobj.org/


## Combined YAML source

View the package source record on GitHub. [combined/cafeobj.yml](https://github.com/mxcl/pkgdb/blob/main/combined/cafeobj.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph