grok-build 0.1.220 (new cask)

[0xCAFEBABEx0]

Built and tested locally on macOS 26.5.

Adds the Grok Build CLI from xAI's published stable channel.

---

• The submission is for a stable version or documented exception.
• brew audit --cask --online <cask> is error-free.
• brew style --fix <cask> reports no offenses.

Additionally, if adding a new cask:

• Named the cask according to the token reference.
• Checked the cask was not already refused (add your cask's name to the end of the search field).
• brew audit --cask --new <cask> worked successfully.
• HOMEBREW_NO_INSTALL_FROM_API=1 brew install --cask <cask> worked successfully.
• brew uninstall --cask <cask> worked successfully.

---

• AI was used to generate or assist with generating this PR. Please specify below how you used AI to help you, and what steps you have taken to manually verify the changes, including zap stanza paths.

AI assisted with authoring the cask and applying review feedback. I reviewed the official download/version source and the zap rmdir: "~/.grok" path, and verified grok-build version 0.1.220 using brew style --fix, both required audits, installation, command invocation, and uninstallation.

---

[bevanjkay]

If this is the "most stable" version of the cli then the token can just be grok-build