diff --git a/wiki/log.md b/wiki/log.md
index 3ce9e50..38a7e73 100644
--- a/wiki/log.md
+++ b/wiki/log.md
@@ -9,6 +9,14 @@ tags: [log, history]
 
 > Append-only 操作记录。格式: `## [日期] 类型 | 描述`
 
+## 2026-04-17 refactor | Phase 5 移除空壳 Hand — Whiteboard/Slideshow/Speech
+
+- **Rust**: 删除 whiteboard.rs(422行) + slideshow.rs(797行) + speech.rs(442行)
+- **前端**: 删除 WhiteboardCanvas + SlideshowRenderer + speech-synth + 类型/常量
+- **配置**: 删除 3 个 HAND.toml
+- Hands 9→6 启用 (Browser/Collector/Researcher/Clip/Twitter/Quiz + Reminder系统内部)
+- 净减 ~5400 行，`cargo check` ✓ | `tsc --noEmit` ✓
+
 ## 2026-04-17 feat | Phase 1 错误体系重构 — ErrorKind + code + Serialize
 
 - **Rust**: `zclaw-types/error.rs` 新增 `ErrorKind` (17种) + `error_codes` (E4040-E5110)