diff --git a/docs/superpowers/plans/2026-09-15-m1-data-collection-foundation.md b/docs/superpowers/plans/2026-09-15-m1-data-collection-foundation.md
index 613ee23..88e8f1b 100644
--- a/docs/superpowers/plans/2026-09-15-m1-data-collection-foundation.md
+++ b/docs/superpowers/plans/2026-09-15-m1-data-collection-foundation.md
@@ -1232,6 +1232,7 @@ export function getSessionId(): string {
 }
 ```
 `context.ts`：`buildEnvContext()`（UA 正则判 device_type/os/browser；`navigator.language`、`Intl.DateTimeFormat().resolvedOptions().timeZone`、`screen.width+"x"+screen.height`、`navigator.hardwareConcurrency`、`navigator.connection?.effectiveType`）；`parseUtm(search)`；`sanitizeUrl(path)`；`pageContext()` → `{path: sanitized, title: document.title, referrer: document.referrer, referrer_domain, utm}`。
+**UA 检测顺序（规格修订）**：device_type 先判 iPad/Tablet 再判 Mobile/Android/iPhone（真实 iPad UA 恒含 Mobile 串，后判必误判手机；Firefox Android 平板显式 "; Tablet;" 同修）；browser 顺序 MicroMessenger → Edg → Firefox/FxiOS → Chrome → Safari（微信/iOS-Firefox 的 UA 必含引擎串，放后面是死代码）。
 - [ ] **Step 3: 测试通过，Commit** `feat(sdk): 身份与环境上下文模块`
 
 ### Task 14: transport.ts 批量传输