Getting the most out of Opus 5.5 in Claude and Claude Code / claude.dev Opus 5.5 works well with the way you already use Claude. A few things behave differently, though: it works for longer on its own, it tells you plainly what it did, and it thinks before every reply. This guide covers how to work with Opus 5.5 in Claude apps and Claude Code, including how to prompt... はてなテクノロジー 2026年09月22日 20:45