# metashell を Homebrew でインストール metashell 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:metashell ``` 追加のインストールコマンド: ### macOS - Homebrew (100%): ```sh brew install metashell ``` 証拠: local Homebrew formula metadata ## パッケージ情報 - **パッケージキー:** brew:metashell - **パッケージマネージャ:** Homebrew - **バージョン:** 5.0.0 - **ソース概要:** Metaprogramming shell for C++ templates - **ホームページ:** - **リポジトリ:** - **生成日時:** 2026-08-03T19:37:03+00:00 ## 実行可能ファイル - metashell (エイリアス) - templight_metashell (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: 5.0.0 ## プロジェクトの歴史と使われ方 Metashell is a C++ template metaprogramming REPL: its project README describes the goal as providing an interactive shell for template metaprogramming, and the project documentation frames it as the C++ template analogue of Python, Haskell, or Erlang interactive shells. Its core niche is making compile-time C++ template evaluation inspectable without forcing developers to encode every experiment as compiler diagnostics. ### プロジェクトの歴史 The tool is tied to the mid-2010s wave of C++ metaprogramming tooling around Clang and Templight. Public Templight material names Abel Sinkovics and Andras Kucsma in connection with Metashell, and a Meeting C++ 2014 talk presented an interactive metaprogramming shell based on Clang. Metashell's own documentation says it uses Clang to evaluate metaprograms, while later discussion of Metashell 2.0.0 highlighted a GDB-like template metaprogram debugger. ### 使われ方 In practice, Metashell is used by C++ library authors and template-heavy codebases to experiment with types, evaluate metaprograms, and debug template instantiation flows. Boost.Metaparse documentation explicitly assumes Metashell can be used while building compile-time parsers, which places it in the same ecosystem as Boost.MPL, Metaparse, Clang, and Templight rather than in general-purpose C++ build tooling. The Homebrew package exposes both metashell and templight_metashell, matching that role as a specialist command-line tool for template metaprogramming work. ### ソース - - - - - - - ## 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 ## Combined YAML source View the package source record on GitHub. [combined/metashell.yml](https://github.com/mxcl/pkgdb/blob/main/combined/metashell.yml) ## ソース - pkg.so package database - Geiger risk classifier - curated package history - pkgdb category and tag curation - cross-ecosystem install command graph