Claude Code
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Claude Code is Anthropic's agentic coding tool, and our preferred one — we prefer it over GitHub Copilot. It drives our agentic-first way of working, executing multi-step coding tasks in a terminal or IDE rather than just suggesting completions.
It is central to how we practice Spec Driven Development: we point it at a specification and let it implement and verify against it, rather than prompting it into code directly.