# Install grayskull with Homebrew Recipe generator for Conda. Version 3.1.1 via Homebrew; verified 2026-06-15. ## Install ```sh sudo av install brew:grayskull ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install grayskull ``` Evidence: local Homebrew formula metadata ## Package facts - **Package key:** brew:grayskull - **Package manager:** Homebrew - **Package manager page:** - **Version:** 3.1.1 - **Source summary:** Recipe generator for Conda - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Last updated:** 2026-06-15T10:20:17-04:00 - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - conda-grayskull (cli) - conda-greyskull (cli) - grayskull (cli) - greyskull (cli) - conda-grayskull (alias) - conda-greyskull (alias) - grayskull (alias) - greyskull (alias) ## Dependencies - certifi - libyaml - python@3.14 ## Build dependencies - cmake ## 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: 3.1.1 - Package-manager updated: 2026-06-15 - Local data: ok - Upstream repository: https://conda.github.io/grayskull/ - info: Release/tag comparison is only available for GitHub repositories. ## Project history and usage Grayskull is a conda recipe generator built to produce concise recipes for conda-forge. It is a packaging tool for packaging people: a CLI that converts upstream package metadata into conda-build recipe structure. ### Project history The official README says Grayskull was created with the intention of eventually replacing conda skeleton. The conda-forge blog introduced it in March 2020 as a way to generate better Conda recipes for projects available from sources such as PyPI, CRAN, Conan, GitHub releases, and repositories. Early public releases moved quickly in February and March 2020, with PyPI recording 0.1.x and 0.2.x releases and the conda-forge blog discussing version 0.2.1. The project later moved under the conda GitHub organization, reinforcing its role as conda ecosystem infrastructure. The 2.x and 3.x release lines show ongoing maintenance as Python packaging standards, recipe conventions, and conda-forge automation evolved. ### Adoption history Grayskull's adoption is tied to conda-forge contributor workflows. Instead of writing a recipe from scratch, maintainers can generate an initial meta.yaml from PyPI, GitHub, or CRAN metadata, then review and adjust it for feedstock submission. The conda-forge blog compared Grayskull with conda-build skeleton using pytest as an example and emphasized better dependency handling, selectors, compiler detection, license information, and generation speed. ### How it is used The documented CLI is centered on commands such as grayskull pypi package-name, optionally with version pins, output directories, and maintainers. The generated recipe is a starting point for conda-build or conda-forge feedstock work. The README and documentation state that Grayskull can generate recipes for Python packages on PyPI, packages available as GitHub repositories, and R packages on CRAN. ### Why package nerds care Grayskull is package-nerd machinery in its purest form: it packages the act of packaging. Its value is reducing recipe boilerplate while still producing metadata that maintainers can inspect. It also marks a shift from conda skeleton's older heuristics toward richer metadata extraction, better selectors, and conda-forge-aware recipe style. ### Timeline - 2020-02: PyPI records early 0.1.x releases. - 2020-03: conda-forge publishes an introduction to Grayskull and discusses version 0.2.1. - 2020-06: PyPI records the 0.7.x series. - 2022: PyPI records the 1.x series through 1.8.x. - 2023: PyPI records the 2.0.0 release and continued 2.x releases. - 2026: PyPI records the 3.0.x and 3.1.x release series. ### Related projects - conda-build skeleton: the older recipe-generation command Grayskull was designed to improve on or replace. - conda-forge: Grayskull generates recipes intended to be concise and suitable for conda-forge workflows. - PyPI, GitHub, CRAN, Conan, and CPAN are source ecosystems discussed by Grayskull documentation and roadmap material. ### Sources - - - - ## Security Notes No matching local secret-handling manifest was found for grayskull. Nucleus package metadata is still published here so future coverage has a stable package URL. ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** grayskull - **Version Scheme:** 0 - **Revision:** 2 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Package publisher tools](https://www.automicvault.com/pkg/package-publishers/) - Belongs to a package publishing or registry 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. - [python@3.14](https://www.automicvault.com/pkg/brew/python-3-14/) - Runtime dependency declared by Homebrew. - [cmake](https://www.automicvault.com/pkg/brew/cmake/) - Build dependency declared by Homebrew. - [pixi-pack](https://www.automicvault.com/pkg/brew/pixi-pack/) - Shares av.db curated category or tags: cli, conda, developer-tools, package-management. - [conda-lock](https://www.automicvault.com/pkg/brew/conda-lock/) - Shares av.db curated category or tags: cli, conda, developer-tools, package-management, python. - [pdm](https://www.automicvault.com/pkg/brew/pdm/) - Shares av.db curated category or tags: cli, developer-tools, package-management, packaging, python. - [poetry](https://www.automicvault.com/pkg/brew/poetry/) - Shares av.db curated category or tags: cli, developer-tools, package-management, packaging, python. - [rattler-build](https://www.automicvault.com/pkg/brew/rattler-build/) - Shares av.db curated category or tags: cli, conda, developer-tools, package-management, packaging. - [twine](https://www.automicvault.com/pkg/brew/twine/) - Shares av.db curated category or tags: cli, developer-tools, package-management, packaging, python. - [brew-gem](https://www.automicvault.com/pkg/brew/brew-gem/) - Shares av.db curated category or tags: cli, developer-tools, package-management, packaging. - [conan](https://www.automicvault.com/pkg/brew/conan/) - Shares av.db curated category or tags: cli, developer-tools, package-management, python. ## Combined YAML source View the package source record on GitHub. [combined/grayskull.yml](https://github.com/automic-vault/db/blob/main/combined/grayskull.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 - cross-ecosystem install command graph