Adds a `grok` skill under `skills/autonomous-ai-agents/`, a third coding-agent orchestration guide alongside `codex` and `claude-code`. It teaches Hermes to delegate coding tasks to Grok Build (xAI's `grok` CLI).
- Headless `-p` one-shots (preferred)
- Interactive TUI via pty + tmux
- Session resume, background tasks, structured JSON output
- PR review and parallel worktree patterns
- Auth via SuperGrok / X Premium+ (`grok login`)
- Full pitfalls and config notes