https://blog.baifan.site/en/tags/tool-system/Recent content in Tool System on ByF (BaiFan) · Daily Deep ThinkHugo -- gohugo.ioenblog@baifan.site (ByF (BaiFan))blog@baifan.site (ByF (BaiFan))CC BY-NC 4.0Tue, 12 May 2026 09:00:00 +0800https://blog.baifan.site/en/claude-code-tool-system-design/Tue, 12 May 2026 09:00:00 +0800blog@baifan.site (ByF (BaiFan))https://blog.baifan.site/en/claude-code-tool-system-design/<!-- more --> <p>Last time we talked about the Think-Act-Observe loop — the skeleton of an AI coding assistant. A skeleton can&rsquo;t work on its own; it needs muscle. In Claude Code, that muscle is <strong>tools</strong>.</p> <p>Without tools, the loop loses the Act between Think and Observe and degenerates into plain Q&amp;A. With tools, the model can touch the real world: read your code, change your configs, run your tests.</p>