# falco を Homebrew でインストール falco 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:falco ``` 追加のインストールコマンド: ### macOS - Homebrew (100%): ```sh brew install falco ``` 証拠: local Homebrew formula metadata ## パッケージ情報 - **パッケージキー:** brew:falco - **パッケージマネージャ:** Homebrew - **パッケージマネージャページ:** - **バージョン:** 2.3.0 - **ソース概要:** VCL parser and linter optimized for Fastly - **ホームページ:** - **リポジトリ:** - **ライセンス:** MIT - **ソースアーカイブ:** - **最終更新:** 2026-07-26T11:37:55+02:00 - **生成日時:** 2026-08-04T22:13:35+00:00 ## 実行可能ファイル - falco (cli) - falco (エイリアス) ## ビルド依存関係 - go ## インストール挙動 - post-install フック: 未定義 - Bottle: 利用可能 対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## バージョンと鮮度 - ページ生成日: 2026-08-04 - マネージャ版: 2.3.0 - マネージャ更新日: 2026-07-26 - ローカルデータ: OK - 上流リポジトリ: https://github.com/ysugimoto/falco - 検出された最新: v2.3.0 (最新) ## プロジェクトの歴史と使われ方 falco is a Fastly VCL developer tool, parser, linter, formatter, local simulator, debugger, and test runner. It is unrelated to the Falco cloud-native security project; the Homebrew formula points to ysugimoto/falco, whose README describes it as a Fastly VCL tool. ### プロジェクトの歴史 The project was created in July 2021 to make Fastly custom VCL development less dependent on slow remote deployment validation. Its README frames the core problem as a deployment loop where service versions are cloned, custom VCL is uploaded, and syntax errors are discovered only when Fastly validates activation. The implementation grew from local parsing and linting into a broader developer workflow: formatting, statistics, a VCL interpreter-backed local simulator, a debugger, unit testing written in VCL, a console, and Terraform plan support for the Fastly provider. ### 採用の歴史 Official install paths include downloadable GitHub release binaries, Homebrew, and `go install`, which places the tool in the normal package-manager and Go-toolchain channels used by Fastly VCL maintainers. The README also documents GitHub Actions usage through a separate falco-github-action, showing CI linting as a first-class workflow. ### 使われ方 The default workflow is `falco lint`, often run with include paths and verbose output against a main VCL file before deployment. Other subcommands cover `fmt`, `simulate`, `test`, `console`, `stats`, and `terraform`, making the CLI useful both interactively and in automated checks. The tool is intentionally Fastly-specific. The README says it targets Fastly VCL 2.x and does not try to track newer generic Varnish syntax, because Fastly adds its own builtins, predefined variables, and compatibility constraints. ### パッケージ好きにとっての重要性 For package-manager users, this falco is a good example of a niche operational CLI whose package name collides with a much larger security project. Its significance is in bringing CDN configuration validation, formatting, simulation, and tests into local shells and CI rather than leaving mistakes to remote Fastly activation. ### タイムライン - 2021: Repository created for a Fastly-focused VCL developer tool. - 2021: v0.1.0 released on GitHub. - 2025: v2.0.0 released. - 2026: v2.3.0 released. ### Related projects - Fastly custom VCL is the primary target environment. - The README documents Terraform plan support for the Fastly Terraform provider. - The README links a GitHub Action for CI linting. ### ソース - - - - ## セキュリティノート narrow executable package without higher-risk signals. - **Geiger リスク:** グリーン / 低 - narrow executable package without higher-risk signals ## ソースデータベース詳細 - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** falco - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## 関連リンク - [Source-control packages](https://pkg.so/ja/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://pkg.so/ja/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://pkg.so/ja/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://pkg.so/ja/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [go](https://pkg.so/ja/brew/go/) - Build dependency declared by Homebrew. - [oxlint](https://pkg.so/ja/brew/oxlint/) - Shares pkgdb curated category or tags: cli, developer-tools, linter, linting. - [protolint](https://pkg.so/ja/brew/protolint/) - Shares pkgdb curated category or tags: cli, developer-tools, linter, linting. - [regal](https://pkg.so/ja/brew/regal/) - Shares pkgdb curated category or tags: cli, developer-tools, linter, linting. - [addons-linter](https://pkg.so/ja/brew/addons-linter/) - Shares pkgdb curated category or tags: cli, developer-tools, linter, linting. - [proselint](https://pkg.so/ja/brew/proselint/) - Shares pkgdb curated category or tags: cli, developer-tools, linter, linting. - [quick-lint-js](https://pkg.so/ja/brew/quick-lint-js/) - Shares pkgdb curated category or tags: cli, developer-tools, linter, linting. - [sherif](https://pkg.so/ja/brew/sherif/) - Shares pkgdb curated category or tags: cli, developer-tools, linter, linting. - [api-linter](https://pkg.so/ja/brew/api-linter/) - Shares pkgdb curated category or tags: cli, developer-tools, linter, linting. - [doc8](https://pkg.so/ja/brew/doc8/) - Local package facts share a topical domain. Shared terms: cli, developer, developer-tools, linter, linting. - [mado](https://pkg.so/ja/brew/mado/) - Local package facts share a topical domain. Shared terms: cli, developer, developer-tools, linter, linting. ## Combined YAML source View the package source record on GitHub. [combined/falco.yml](https://github.com/mxcl/pkgdb/blob/main/combined/falco.yml) ## ソース - pkg.so package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - pkgdb category and tag curation - package relationship graph - cross-ecosystem install command graph