A blog about software engineering, technology, and life.https://funfun.zone/enhttps://funfun.zone/posts/gpu-subprime-wash-debt/https://funfun.zone/posts/gpu-subprime-wash-debt/谁借的钱、租金怎么被压下去、破产桌上谁收场——以及这跟暗光纤、2008 次贷、车贷叙事到底哪里不一样Sat, 07 Nov 2026 06:57:07 GMTai-agentsfinancegpunoteshttps://funfun.zone/posts/codex-agent-13-testing-observability/https://funfun.zone/posts/codex-agent-13-testing-observability/局部规则、宿主流程与真实任务三层验证，模拟响应流固定回归，以及用 call id 串起遥测时间线。Wed, 04 Nov 2026 13:27:20 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-11-runtime-intervention/https://funfun.zone/posts/codex-agent-11-runtime-intervention/追加输入进队列、带预期轮次编号防串线、取消收尾与工具竞态，以及中断后如何用文件/进程/远端三类证据核对。Wed, 04 Nov 2026 13:25:12 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-09-code-mode/https://funfun.zone/posts/codex-agent-09-code-mode/V8 隔离单元里用 JS await 工具、显式输出与 cell_id 续跑、store 跨 exec 传数据，以及不会绕过审批与沙箱。Wed, 04 Nov 2026 13:23:52 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-08-tool-discovery/https://funfun.zone/posts/codex-agent-08-tool-discovery/延迟展示与工具搜索入口、BM25 匹配元数据而非业务正文、搜索成功≠业务成功，以及和 Code Mode 目录发现的区分。Wed, 04 Nov 2026 13:22:30 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-07-long-commands/https://funfun.zone/posts/codex-agent-07-long-commands/观察窗口先返回与进程继续跑的两条时间线、write_stdin 续读、有界输出缓存，以及两类超时语义为何不能混用。Wed, 04 Nov 2026 13:21:20 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-06-sandbox-permissions/https://funfun.zone/posts/codex-agent-06-sandbox-permissions/把审批、文件系统与网络拆成三个控制维度，讲清允许/询问/禁止、沙箱升级门槛，以及失败分类后再决定下一步。Wed, 04 Nov 2026 13:20:10 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-05-agents-md/https://funfun.zone/posts/codex-agent-05-agents-md/用户级与项目级两条来源、向上发现与 override 优先级、32KB 预算、缓存刷新，以及规则为何不能代替沙箱权限。Wed, 04 Nov 2026 13:18:40 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-04-multi-agent/https://funfun.zone/posts/codex-agent-04-multi-agent/spawn 新线程、fork_context 默认不带全文、文件未必隔离、wait/close/深度名额，以及主 Agent 如何对照工作区验收。Wed, 04 Nov 2026 13:17:31 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-03-context-compaction/https://funfun.zone/posts/codex-agent-03-context-compaction/分清项目文件、会话记录与发给模型的窗口；讲清单次输出截断、压缩触发、本地/远端路径与压缩后如何核对原要求。Wed, 04 Nov 2026 13:15:51 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-02-long-tasks/https://funfun.zone/posts/codex-agent-02-long-tasks/会话、轮次、慢命令进程、上下文窗口与 goal 模式如何叠在一起，让 Codex 在长任务里持续推进而不把「还在忙」当成一种状态。Wed, 04 Nov 2026 13:14:43 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-01-loop/https://funfun.zone/posts/codex-agent-01-loop/用修空字符串测试的小例子，讲清 Codex 一轮 turn 里模型请求、工具调用、call id 对账与结束判断如何串起来。Wed, 04 Nov 2026 13:12:56 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/codex-agent-engineering-series/https://funfun.zone/posts/codex-agent-engineering-series/11 篇根据 B 站合集字幕改写的 Codex / Agent 工程笔记目录，按主题跳转各篇与源视频。Wed, 04 Nov 2026 13:11:46 GMTai-agentscodexworkflownoteshttps://funfun.zone/posts/claude-code-background-tasks-panel/https://funfun.zone/posts/claude-code-background-tasks-panel/用一次多代理 workflow 的真实记录，讲清 fork 会复制什么、面板上的名字是谁写的、输出怎么对上任务。Tue, 03 Nov 2026 07:37:55 GMTclaude-codeai-agentsworkflowhttps://funfun.zone/posts/small-writer-big-reviewer-deepswe/https://funfun.zone/posts/small-writer-big-reviewer-deepswe/研发大师Ultra（便宜的 DeepSeek 写代码、GPT-6.1 Sol 审查）在 DeepSWE 上通过 80.4%，显著好于 DeepSeek flash，也高于 Sol 6.1、GPT Sol 6.1 Max 和 Opus 5.5 medium（不显著）；附顾问模式、实验细节、复现方法和全部脚本。Wed, 28 Oct 2026 10:01:54 GMTai-agentspair-programmingllm-evalhttps://funfun.zone/posts/agent-lowers-threshold/https://funfun.zone/posts/agent-lowers-threshold/从中小企业 HR 手动核对学历说起，很多白领的重复活本可以交给脚本，却很少有人写。agent 把门槛降到了能把任务说清楚，可多数人还没意识到这些活能交出去。Mon, 26 Oct 2026 03:54:30 GMTai-agentshttps://funfun.zone/posts/a2a-outcome-delivery/https://funfun.zone/posts/a2a-outcome-delivery/agent 开始自己花钱买服务了。Mon, 26 Oct 2026 03:08:47 GMTai-agentshttps://funfun.zone/posts/proof-is-worth-more/https://funfun.zone/posts/proof-is-worth-more/AI 让文字、代码、照片甚至身份都能廉价造出来。Fri, 23 Oct 2026 12:01:11 GMTai-agentsworkflowhttps://funfun.zone/posts/will-model-labs-eat-software/https://funfun.zone/posts/will-model-labs-eat-software/软件的钱，以前从哪来，现在去了哪，以后会去哪。Fri, 23 Oct 2026 09:48:22 GMTai-agentsworkflowhttps://funfun.zone/posts/vps-pipelines-ddos-botnet-incident/https://funfun.zone/posts/vps-pipelines-ddos-botnet-incident/Open WebUI pipelines 端口对公网开放且用默认 key，被植入 Spider DDoS 木马，两天发出近 500GB 流量；记录结论、排查、根因、修复和教训。Wed, 21 Oct 2026 02:58:35 GMTai-agentssecurityincident-responseself-hostinghttps://funfun.zone/posts/code-is-cheap-where-money-goes/https://funfun.zone/posts/code-is-cheap-where-money-goes/AI 让写软件几乎免费，跑软件却更贵。价值从代码搬到了数据、入口、养护和算力，中小公司的机会在 agent 自己做不了的地方。Sat, 17 Oct 2026 05:35:13 GMTai-agentsworkflowhttps://funfun.zone/posts/claude-code-queued-messages/https://funfun.zone/posts/claude-code-queued-messages/从桌面 App 日志和会话记录看，排队消息只会在工具结果返回时交给模型。Fri, 16 Oct 2026 08:05:46 GMTclaude-codeai-agentshttps://funfun.zone/posts/reverse-fix-mutation-testing-pilot/https://funfun.zone/posts/reverse-fix-mutation-testing-pilot/规则工具、大模型、撤回历史修复三种造变异体的方法实测对比：同一套测试，得分从 3% 变成 96%；真漏洞主要靠大模型造的变异体和撤回的历史修复找到。附四种工具假结果、研究速览和参考文献。Fri, 16 Oct 2026 05:53:24 GMTtestingmutation-testingai-agentshttps://funfun.zone/posts/front-desk-agent/zh/https://funfun.zone/posts/front-desk-agent/zh/Claude Dispatch 和 Grok 的 Primary Bot 都在你和其他 agent 之间放了一个负责调度的 agent。这样设计为什么能减轻同时管很多 agent 的负担，还有哪些难题。Fri, 16 Oct 2026 04:08:12 GMTai-agentsworkflowhttps://funfun.zone/posts/claude-desktop-ccd-tools/https://funfun.zone/posts/claude-desktop-ccd-tools/The Claude desktop app gives its agent a set of mcp__ccd_* tools that drive the app itself: the to-do list, other sessions, panes and the sidebar. What they are, how the to-do list really gets ticked, and what they donThu, 15 Oct 2026 02:50:32 GMTclaude-codeai-agentshttps://funfun.zone/posts/front-desk-agent/https://funfun.zone/posts/front-desk-agent/Claude Dispatch and Grok's Primary Bot both put one orchestrating agent between you and your other agents. Why that design cuts the load of managing many agents, and what is still hard.Thu, 15 Oct 2026 02:07:30 GMTai-agentsworkflowhttps://funfun.zone/posts/side-agent-mods-you-should-know/https://funfun.zone/posts/side-agent-mods-you-should-know/一个不打断主 agent、默认保持沉默的“旁观者”是怎么做出来的，以及它对做 agent 产品的人有什么启发。Wed, 14 Oct 2026 07:43:37 GMTclaude-codeai-agentshttps://funfun.zone/posts/ai-native-app-interaction/https://funfun.zone/posts/ai-native-app-interaction/AI 开始走出聊天框，能直接改 App 本身。从 Claude Code 的 spawn_task 和 show_widget 出发，推想未来的软件。Wed, 14 Oct 2026 06:29:07 GMTai-agentsclaude-codeinteraction-designhttps://funfun.zone/posts/claude-code-spawn-task-show-widget/https://funfun.zone/posts/claude-code-spawn-task-show-widget/spawn_task 把顺路看到的问题变成一张卡片，show_widget 把要你挑的东西直接画在聊天里。Wed, 14 Oct 2026 05:39:52 GMTclaude-codeai-agentshttps://funfun.zone/posts/clash-dns-system-deadlock/https://funfun.zone/posts/clash-dns-system-deadlock/从 WiFi 换到网线，Clash 必报 dns resolve failed。不是节点挂了，是 DNS 配置里的一个 system 让它“自己问自己”。用大白话讲清楚来龙去脉和修法。Wed, 14 Oct 2026 03:50:00 GMTnetworkclashdnsmacoshttps://funfun.zone/posts/claude-code-workflow-multi-turn/https://funfun.zone/posts/claude-code-workflow-multi-turn/How a Claude Code workflow grows across several chat turns — append a step, resume from the last run, and only pay for the new part.Wed, 14 Oct 2026 02:00:00 GMTclaude-codeai-agentsworkflowhttps://funfun.zone/posts/ai-pair-programming/https://funfun.zone/posts/ai-pair-programming/让 AI 编程助手跑了约 2,400 次真实任务：两个 AI 结对，什么时候真的比一个强，什么时候只是白花 2–3 倍时间。Mon, 05 Oct 2026 02:00:00 GMTai-agentspair-programmingllm-evalhttps://funfun.zone/posts/introducing-claude-island/https://funfun.zone/posts/introducing-claude-island/一个 macOS 菜单栏小工具，把 Claude Code 的会话状态和权限审批搬到 MacBook 的刘海上。Sat, 11 Apr 2026 02:00:00 GMTclaude-codemacosswiftopen-source