Grok Harness (ACOS + Grok Build)

Grok Build (xAI Grok CLI/TUI) is a first-class harness in the 5-fleet (Claude canonical, Grok, Antigravity/AGY, Gemini, Codex). ACOS provides deep integration via grok-harness-adapter (adapters/grok/index.ts + install.sh --platform=grok).

Quick Start in Grok

# From any project
./install.sh --platform=grok   # or in ACOS source itself

# Then:
grok
/hooks-trust
/skills harness-integration
# or just describe: "use repo-mastery on this ACOS change + gstack qa if UI"