[2026-11-03] eagle: work/projects/cpm-project-summary-2026-11-03.md

work/projects/cpm-project-summary-2026-11-03.md

@@ -28,11 +28,11 @@ Goal: permanent failures below 1% of DAU (0.2-0.5% = success). Permanent = no an
 - [Network process crash](https://app.asana.com/1/137249556945/task/1219531810004073?focus=true) – restart after the networking process crashes. Triggers for 6.6% of iOS and 4.2% of macOS daily users (Nov/2).
 - [State restoration race](https://app.asana.com/1/137249556945/task/1218744813699966?focus=true) – restored tabs wait up to 5 s for the extension to start. Init failures on restore: iOS ~20% → ~8.5% of DAU, macOS no clear change.
 
-**Hypotheses rejected**
+**Fixes not confirmed by data (to be rolled back)**
 
-- [Deallocation race](https://app.asana.com/1/137249556945/task/1217907325352233?focus=true) ([A/B](https://app.asana.com/1/137249556945/task/1218356681060819?focus=true), [flag](https://app.asana.com/1/137249556945/task/1219036128743441?focus=true)) – fix shipped behind a flag never turned on, no relation in the data.
-- [Reload on the stuck signal](https://app.asana.com/1/137249556945/task/1218744813699968?focus=true) – 46% of macOS cases still got no answer.
-- [P4](https://app.asana.com/1/137249556945/task/1219531810004072?focus=true) – reload the page when the extension starts late. Off by default, never triggered in production.
+- [Deallocation race](https://app.asana.com/1/137249556945/task/1217907325352233?focus=true) ([A/B](https://app.asana.com/1/137249556945/task/1218356681060819?focus=true), [flag](https://app.asana.com/1/137249556945/task/1219036128743441?focus=true)) – flag never turned on, no effect seen in the data.
+- [Reload on the stuck signal](https://app.asana.com/1/137249556945/task/1218744813699968?focus=true) – 46% of macOS cases still got no answer after the reload.
+- [P4](https://app.asana.com/1/137249556945/task/1219531810004072?focus=true) (late page reload) – off by default, never triggered.
 
 **Fixes going public next week (Nov/9)**
 
@@ -74,7 +74,7 @@ This week, cleanup:
 - [Feature flags cleanup](https://app.asana.com/1/137249556945/task/1220159402040629?focus=true):
   - Remove fix and flag (did not work or never ran): [cpmBackgroundGraveyardTreatment](https://app.asana.com/1/137249556945/task/1218860893478440?focus=true), [cpmLateBackgroundDocumentRecovery](https://app.asana.com/1/137249556945/task/1219588497257482?focus=true), [cpmMessagingHangRecovery](https://app.asana.com/1/137249556945/task/1218855001659655?focus=true), [cpmBackgroundLoadRecovery](https://app.asana.com/1/137249556945/task/1219701603183698?focus=true).
   - Remove with the diagnostics: [cpmDiagnosticsRecorder](https://app.asana.com/1/137249556945/task/1218785444896174?focus=true), [cpmBackgroundDelegateProxy](https://app.asana.com/1/137249556945/task/1218782530802146?focus=true).
-  - Keep the fix, remove the failsafe flag: [cpmNetworkProcessRecovery](https://app.asana.com/1/137249556945/task/1219701603183695?focus=true), [cpmStableBaseURL](https://app.asana.com/1/137249556945/task/1219728649844711?focus=true), [webExtensionSharedPinnedTabWindowClose](https://app.asana.com/1/137249556945/task/1219660990760563?focus=true), [webExtensionStateRestorationGate](https://app.asana.com/1/137249556945/task/1218931841045393?focus=true), [cpmBackgroundLoadRestart](https://app.asana.com/1/137249556945/task/1219970564251181?focus=true) (after Nov/9 data).
+  - Keep the fix and the flag as a kill-switch for now (remove after 2-3 releases without issues): [cpmNetworkProcessRecovery](https://app.asana.com/1/137249556945/task/1219701603183695?focus=true), [cpmStableBaseURL](https://app.asana.com/1/137249556945/task/1219728649844711?focus=true), [webExtensionSharedPinnedTabWindowClose](https://app.asana.com/1/137249556945/task/1219660990760563?focus=true), [webExtensionStateRestorationGate](https://app.asana.com/1/137249556945/task/1218931841045393?focus=true), [cpmBackgroundLoadRestart](https://app.asana.com/1/137249556945/task/1219970564251181?focus=true).
 - [Pixel data cleanup](https://app.asana.com/1/137249556945/task/1220159402040630?focus=true): remove the temporary pixels and episode parameters that only served the investigation.
 
 Next, metrics: