https://douyixuan.github.io/tags/model-routing/Recent content in Model-Routing on 兜忆轩 | Cedric's Compiler Noteshttps://douyixuan.github.io/images/papermod-cover.pnghttps://douyixuan.github.io/images/papermod-cover.pngHugo -- 0.146.0en-usMon, 31 Aug 2026 08:00:00 +0800https://douyixuan.github.io/posts/ai-native/2026-08-31/Mon, 31 Aug 2026 08:00:00 +0800https://douyixuan.github.io/posts/ai-native/2026-08-31/今天两篇都落在 coding-agent harness 的边界上：The Handoff Tax 量化长任务中途切换模型时，继承他人 trajectory 带来的质量与成本损失；When Context Gets Root 则指出 harness 在重建 context 时如果丢失 provenance，可能把低权限 tool content 升格成 user/system 指令，直接破坏 instruction hierarchy 与自动权限审查。