Test Double Homebrew Tap

Homebrew formulae for tools from Test Double.

This repository is a Homebrew tap. It holds Homebrew formula files and the files that support them, such as this README and the license. Do not add source code, release artifacts, or anything else unrelated to Homebrew. Those belong in each tool's own repository.

Skillwalker

Skillwalker evaluates Claude Code skills and agents. It runs on macOS, on Apple silicon and Intel.

Install it with one command. Naming the tap in full adds the tap and trusts only this formula:

brew install testdouble/tap/skillwalker

Skillwalker runs Claude Code inside Docker Sandboxes, so install sbx and log in, then create the Test Sandbox from the repo you want to evaluate:

brew install docker/tap/sbx
sbx login
skillwalker sandbox create

Upgrade with brew upgrade skillwalker. Your Test Sandbox keeps working across upgrades, so there is no need to run skillwalker sandbox update or log in again.

Updating a formula

Each Skillwalker release publishes skillwalker-{version}-darwin-arm64.tar.gz and skillwalker-{version}-darwin-x86_64.tar.gz on its GitHub Release, with a .sha256 file for each. To update Formula/skillwalker.rb, set both url values and both sha256 values to the new release, then check it. Homebrew reads the version from the URLs.

brew audit --strict testdouble/tap/skillwalker
brew upgrade testdouble/tap/skillwalker
brew test testdouble/tap/skillwalker

License

Copyright (c) 2026 Test Double, Inc. Released under the MIT License.