1. Who can use Claude Code’s Code Review?
Code Review is available to Claude Team and Enterprise organisations. It works on GitHub-hosted code, and an admin must switch it on. Findings appear as comments. The tool does not approve or reject merges. Organisations with zero data retention cannot use it.
2. What is a Git worktree, and why does Codex use it?
A worktree is a separate working copy of a project. An agent can try changes there while the main copy stays untouched. Codex added tools for managed worktrees on October 8. The feature is opt-in, so it must be enabled first.
3. Does Gemini 4 Argon’s one-million-token window guarantee better answers?
No. The window sets how much information the model can consider in one request. It says nothing about how well that information is used. Input and output share the same window. Introductory API prices are USD 2 for input and USD 10 for output per million tokens until November 30. After that, the rates are USD 4 and USD 20. These are per-use API rates, not subscription fees.
4. What is the difference between code review and a sandbox?
Code review inspects a finished change. A sandbox limits what an agent can reach while it works. Copilot’s local sandbox restricts files, network connections and Git credentials for commands the agent runs. It is included with Copilot at no extra charge. It starts switched off in the command-line tool. With it off, agent commands have the same access as the user’s own account.
5. How does GitHub Copilot pricing work now?
Copilot plans include a monthly allowance of credits. Past that point, extra usage costs one cent per credit if a budget is set. Without one, usage stops until the next cycle. Details vary by plan. Basic code completions sit outside the allowance. Copilot code review also uses GitHub Actions minutes. Official pricing pages list current terms.