diff --git a/docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json b/docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json
index 08749b3..9394c39 100644
--- a/docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json
+++ b/docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json
@@ -3707,7 +3707,7 @@
       "template": "P23 life observation: <checks> checks, <failures> failures",
       "required": true,
       "fixed_check_count_used": false,
-      "source_sha256_at_schema_audit": "610ff2f33ec0e42bdca55d692e640c9bd8fe9244b9b49b0263419b1998ff9e9e",
+      "source_sha256_at_schema_audit": "88c64fdb81937fc7dca24a87e74b568db8e35a3471c7f4ee7bc41c7d0ddeae24",
       "authority": {
         "path": "docs/spec/acceptance/P23-03.json",
         "scope": "component and read-only observation only; native unexecuted; whole unit blocked"
diff --git a/tests/ui/test_p23_life_observation.gd b/tests/ui/test_p23_life_observation.gd
index 9410247..e408808 100644
--- a/tests/ui/test_p23_life_observation.gd
+++ b/tests/ui/test_p23_life_observation.gd
@@ -6,6 +6,7 @@ var checks := 0
 var failures := 0
 
 class QueueWorld extends RefCounted:
+	var revision := 0
 	func get_bounds() -> Dictionary:
 		return {&"min_x": -1, &"max_x": 2, &"min_y": 0, &"max_y": 1}
 	func is_walkable(cell: Vector3i) -> bool: