diff --git a/src/simulator/api-gdext/tests/ai_controller.rs b/src/simulator/api-gdext/tests/ai_controller.rs
index c70eaa4a..c702e809 100644
--- a/src/simulator/api-gdext/tests/ai_controller.rs
+++ b/src/simulator/api-gdext/tests/ai_controller.rs
@@ -27,9 +27,13 @@ fn constructor_smoke_player_index_bounds() {
         player_index_to_slot((MAX_PLAYERS - 1) as i64).unwrap(),
         MAX_PLAYERS - 1
     );
-    assert!(
-        player_index_to_slot(MAX_PLAYERS as i64).is_err(),
-        "player_index >= MAX_PLAYERS must error"
+    // Out-of-range indices cap to the last slot (graceful degradation for games
+    // with more players than MAX_PLAYERS, e.g. the 5-clan demo) rather than
+    // erroring and taking no actions — see player_index_to_slot in ai.rs.
+    assert_eq!(
+        player_index_to_slot(MAX_PLAYERS as i64).unwrap(),
+        MAX_PLAYERS - 1,
+        "player_index >= MAX_PLAYERS must cap to the last slot"
     );
 }
 
diff --git a/src/simulator/crates/mc-player-api/tests/full_game_transcript.rs b/src/simulator/crates/mc-player-api/tests/full_game_transcript.rs
index 38d42169..27e21a6f 100644
--- a/src/simulator/crates/mc-player-api/tests/full_game_transcript.rs
+++ b/src/simulator/crates/mc-player-api/tests/full_game_transcript.rs
@@ -1372,6 +1372,7 @@ fn ai_action_signature(action: &mc_ai::tactical::Action) -> String {
         A::DeploySiege { .. } => "deploy_siege".into(),
         A::PackSiege { .. } => "pack_siege".into(),
         A::Bombard { .. } => "bombard".into(),
+        A::DeclareWar { target } => format!("declare_war:{target}"),
     }
 }