# Install action-validator with Homebrew, Nix Tool to validate GitHub Action and Workflow YAML files. Version 0.9.0 via Homebrew; verified 2026-05-26. ## Install ```sh sudo av install brew:action-validator ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install action-validator ``` Evidence: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#action-validator ``` Evidence: nixpkgs package indexes: pkgs/by-name/ac/action-validator/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:action-validator - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.9.0 - **Source summary:** Tool to validate GitHub Action and Workflow YAML files - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** GPL-3.0-only - **Source archive:** - **Last updated:** 2026-05-26T23:37:47-04:00 - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - action-validator (cli) - action-validator (alias) ## Build dependencies - rust ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 0.9.0 - Package-manager updated: 2026-05-26 - Local data: ok - Upstream repository: https://github.com/mpalmer/action-validator - info: No cached GitHub release or tag data was available. ## Project history and usage action-validator is a standalone linter for GitHub Actions and workflow YAML files, checking structure against schemas and validating path globs. ### Project history The repository was created in October 2021 and published v0.1.0 the same day. The README describes a focused Rust-based tool intended for pre-commit hooks and similar validation workflows. ### Adoption history The official README documents several distribution paths: pre-built binaries from GitHub releases, cargo, asdf, mise, npm packages, direct repository builds, GitHub Action usage, and pre-commit integration. That spread is unusually broad for a small validator and reflects demand across Rust, Node, version-manager, and CI users. ### How it is used The core workflow is to pass one or more GitHub workflow or action YAML files to action-validator. The README also shows pre-commit hook usage, npx usage, a Node API, and running the validator inside GitHub Actions. ### Why package nerds care action-validator is package-nerd friendly because it packages a CI correctness check as a local command, not only as hosted platform behavior. It is also notable for offering the same validation idea through native binaries, cargo, npm, asdf, mise, pre-commit, and a composite GitHub Action. ### Timeline - 2021-10-26: GitHub repository created and v0.1.0 published. - 2023-03-03: v0.4.0 added WASM builds, multiple filenames, and older-distro binary support. - 2024-02-23: v0.6.0 added negative-glob support and tests. - 2025-08-20: v0.8.0 added --rootdir support. - 2026-04-09: v0.9.0 improved file discovery using git-known files and added a pre-built GitHub Action. ### Related projects - Related projects include SchemaStore-backed validators, pre-commit hooks, GitHub Actions workflow linters, and CI policy checks. ### Sources - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** action-validator - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - action-validator: normalized package name match | nixpkgs package indexes: pkgs/by-name/ac/action-validator/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [rust](https://www.automicvault.com/pkg/brew/rust/) - Build dependency declared by Homebrew. - [yamale](https://www.automicvault.com/pkg/brew/yamale/) - Shares av.db curated category or tags: cli, developer-tools, validation, yaml. - [check-jsonschema](https://www.automicvault.com/pkg/brew/check-jsonschema/) - Shares av.db curated category or tags: cli, developer-tools, validation. - [epubcheck](https://www.automicvault.com/pkg/brew/epubcheck/) - Shares av.db curated category or tags: cli, developer-tools, validation. - [config-file-validator](https://www.automicvault.com/pkg/brew/config-file-validator/) - Shares av.db curated category or tags: cli, developer-tools, validation, yaml. - [dotenv-linter](https://www.automicvault.com/pkg/brew/dotenv-linter/) - Shares av.db curated category or tags: cli, developer-tools, linter, rust. - [gitlab-ci-linter](https://www.automicvault.com/pkg/brew/gitlab-ci-linter/) - Shares av.db curated category or tags: cli, developer-tools, linter, yaml. - [kube-linter](https://www.automicvault.com/pkg/brew/kube-linter/) - Shares av.db curated category or tags: cli, developer-tools, linter, yaml. - [kubeconform](https://www.automicvault.com/pkg/brew/kubeconform/) - Shares av.db curated category or tags: cli, developer-tools, validation. - [action-docs](https://www.automicvault.com/pkg/brew/action-docs/) - Package names and metadata indicate a similar tool family. Shared terms: action, actions, cli, developer, developer-tools. - [wrkflw](https://www.automicvault.com/pkg/brew/wrkflw/) - Local package facts share a topical domain. Shared terms: actions, cli, developer, developer-tools, github. ## Combined YAML source View the package source record on GitHub. [combined/action-validator.yml](https://github.com/automic-vault/db/blob/main/combined/action-validator.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph