相比 Sonnet 4.5,驱动 Claude Code 并可以独立使用的 Claude Agent SDK 更值得关注
https://www.anthropic.com/engineering/building-agents-with-the-claude-agent-sdk
https://docs.claude.com/en/api/agent-sdk/overview
https://www.anthropic.com/engineering/building-agents-with-the-claude-agent-sdk
https://docs.claude.com/en/api/agent-sdk/overview