diff --git a/src/hooks/todo-continuation-enforcer/types.ts b/src/hooks/todo-continuation-enforcer/types.ts
index dbc79d4d7..d44bd579b 100644
--- a/src/hooks/todo-continuation-enforcer/types.ts
+++ b/src/hooks/todo-continuation-enforcer/types.ts
@@ -35,6 +35,8 @@ export interface SessionState {
   stagnationCount: number
   consecutiveFailures: number
   recentCompactionAt?: number
+  recentCompactionEpoch?: number
+  acknowledgedCompactionEpoch?: number
 }
 
 export interface MessageInfo {