<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Haochen Xu</title><description>关于 Web 工程、前端实验，以及任何值得深入理解的东西。</description><link>https://hcxu.cc/</link><item><title>我的 Agent 使用心路历程：从 TUI 到把 workspace 当家目录</title><link>https://hcxu.cc/zh/posts/agent/what-ive-learned-from-using-agents/</link><guid isPermaLink="true">https://hcxu.cc/zh/posts/agent/what-ive-learned-from-using-agents/</guid><description>从 NanoClaw 开始，到把 agent-workspace 当作 agent 的家、用 opencode serve 把它从电脑里放出来、用 notes / user.md / todos.md 分层管理记忆，以及自动记忆试过的两个方案和最后留下的那个。</description><pubDate>Thu, 30 Jul 2026 00:00:00 GMT</pubDate></item><item><title>几个 Claude Agent SDK 回合为什么会用完 5-hour limit</title><link>https://hcxu.cc/zh/posts/agent/understanding-claude-agent-sdk-token-usage/</link><guid isPermaLink="true">https://hcxu.cc/zh/posts/agent/understanding-claude-agent-sdk-token-usage/</guid><description>从一个 Gmail Bridge 触发的 Claude Code SDK session 出发，拆解为什么表面只有几轮对话，底层却产生了 44 次 model calls、5.84M cumulative usage tokens，以及 prompt caching、tool-use round trips 和 Claude Code harness 在里面分别做了什么。</description><pubDate>Mon, 20 Jul 2026 00:00:00 GMT</pubDate></item><item><title>我的 personal agent 怎么管上下文：把 context 当易耗品，把记忆当资产</title><link>https://hcxu.cc/zh/posts/agent/how-my-agent-handles-context/</link><guid isPermaLink="true">https://hcxu.cc/zh/posts/agent/how-my-agent-handles-context/</guid><description>从一句 AGENTS.md 出发，讲我这个常驻个人 agent 是怎么分层管理记忆与上下文的：极小的常驻层 + 渐进式披露 + skill routing，让我可以放心地『做完就走、随手开新 session』。</description><pubDate>Thu, 09 Jul 2026 00:00:00 GMT</pubDate></item><item><title>我为什么给 agent 加了 memory，最后又把它删了</title><link>https://hcxu.cc/zh/posts/agent/building-memory-for-our-opencode-agent/</link><guid isPermaLink="true">https://hcxu.cc/zh/posts/agent/building-memory-for-our-opencode-agent/</guid><description>一篇关于 OpenCode agent 长期记忆系统的复盘：从文件式 memory，到 mem0 + Qdrant，再到最终回归显式 notes。</description><pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate></item><item><title>🧠 What Should LLM-Facing Developers Know?</title><link>https://hcxu.cc/zh/posts/thoughts/internet-facing-vs-llm-facing-development/</link><guid isPermaLink="true">https://hcxu.cc/zh/posts/thoughts/internet-facing-vs-llm-facing-development/</guid><description>If building for the internet was the mainstream in the past 20 years, building for LLMs might be the future. Just like how web developers don&apos;t need to know the low-le...</description><pubDate>Fri, 11 Oct 2024 00:00:00 GMT</pubDate></item><item><title>DynamoDB</title><link>https://hcxu.cc/zh/posts/db/dynamo-db/</link><guid isPermaLink="true">https://hcxu.cc/zh/posts/db/dynamo-db/</guid><description>It is a key-value store like an object. Primary key It is a unique identifier for a item in a table. It is the &quot;key&quot; of the item. It must contain a partition key and a...</description><pubDate>Mon, 20 May 2024 00:00:00 GMT</pubDate></item></channel></rss>