基线:全量源码首提(D1 版本控制落地,含第一轮优化 B1-B4/A1/A4/缩放修复)

2026-10-01 22:15:22 +08:00
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+# Tab Lifecycle Marks
+
+- Agent-created tabs persist in the current ZCode process until the model explicitly calls `tab.close()`, the user
+  closes the tab/window, or the process exits. Claimed user tabs return to the user when released.
+- `tab.markDeliverable()` keeps a user-facing result visible and releases it from browser control at turn cleanup.
+- `tab.markHandoff()` keeps unfinished work visible and controllable by this session in a later turn.
+- `browser.tabs.finalize({ keep })` changes only the tabs listed in `keep`. Unlisted active/handoff tabs stay open;
+  absence from `keep` is never an implicit close request.
+- `turnEnded` cancels pending requests and releases explicit deliverables or unmarked claimed user tabs, but it never
+  closes a tab; an explicit handoff remains controlled. `closeSession` releases surviving tabs back to the owning
+  conversation without closing their views. Released tabs never become visible to a different conversation.
+- `browser.user.openTabs()` only returns the current conversation's non-empty user tabs. Empty URLs and exact
+  `about:blank` placeholders are intentionally omitted.
+- Closing every visible in-app browser tab in the current conversation requires both sources: close controlled tabs from
+  `browser.tabs.list()`, then claim and close user tabs returned by `browser.user.openTabs()`. Other conversations remain
+  inaccessible.