https://zhuoqidev.com/categories/ai-agent-engineering/ Recent content in AI Agent Engineering on 卓琪的开发笔记 Hugo -- gohugo.io zh-CN © 2026 Liu ZhuoQi Sun, 09 Aug 2026 00:00:00 +0000 https://zhuoqidev.com/en/posts/codex-first-request-tools/ Sat, 08 Aug 2026 00:00:00 +0000 https://zhuoqidev.com/en/posts/codex-first-request-tools/ <div class="lead text-neutral-500 dark:text-neutral-400 !mb-9 text-xl"> Think of the model as an engineer with a small desk. If hundreds of tool manuals cover it, every request becomes expensive and the right manual is harder to find. Codex instead provides a short catalog and retrieves only the most relevant manuals. This article explains that design, BM25 ranking, reuse in Python or Go, and model replacement. </div> <p>This article is pinned to stable <a href="https://github.com/openai/codex/releases/tag/rust-v0.147.0" target="_blank" rel="noreferrer"><code>rust-v0.147.0</code></a>, released on August 7, 2026, at commit <a href="https://github.com/openai/codex/commit/be6e8eac029b183056b7e4402879f15d2c85f61b" target="_blank" rel="noreferrer"><code>be6e8eac</code></a>. I also rechecked <code>main</code> at commit <a href="https://github.com/openai/codex/commit/646f7c0a91b8e327d263335da68ae8ef212895ce" target="_blank" rel="noreferrer"><code>646f7c0a</code></a> on August 9. Two conclusions matter up front:</p>