diff --git a/CHANGELOG.md b/CHANGELOG.md
index d73e14da..69f2ba11 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,14 @@
 # Changelog
 ## [Unreleased]
 
+### Added
+
+- **Activity events**: TUI and web frontend now display skill sub-agent tool calls via `ActivitySnapshotEvent`
+
 ### Changed
 
 - **RLM sandbox**: Bumped pydantic-monty to 0.0.8. Removed `regex_*` external functions — the sandbox now has native `re` and `math` modules via `import`. Also adds `filter()` and `getattr()` builtins.
+- **Frontend deps**: Upgraded CopilotKit to 1.54.0 and @ag-ui/client to 0.0.47
 
 ## [0.33.3] - 2026-03-12
 
diff --git a/evaluations/tests/test_optimization.py b/evaluations/tests/test_optimization.py
index 16e65605..cf04ffc1 100644
--- a/evaluations/tests/test_optimization.py
+++ b/evaluations/tests/test_optimization.py
@@ -287,10 +287,10 @@ class TestRunOptimization:
         return DatasetSpec(
             key="test",
             db_filename="test.lancedb",
-            document_loader=lambda: None,  # type: ignore[return-value]
+            document_loader=lambda: None,
             document_mapper=lambda doc: None,
-            qa_loader=lambda: None,  # type: ignore[return-value]
-            qa_case_builder=lambda idx, doc: None,  # type: ignore[return-value]
+            qa_loader=lambda: None,
+            qa_case_builder=lambda idx, doc: None,
             system_prompt="You are a test assistant.",
         )
 
@@ -348,10 +348,10 @@ class TestRunOptimization:
         spec = DatasetSpec(
             key="test",
             db_filename="test.lancedb",
-            document_loader=lambda: None,  # type: ignore[return-value]
+            document_loader=lambda: None,
             document_mapper=lambda doc: None,
-            qa_loader=lambda: None,  # type: ignore[return-value]
-            qa_case_builder=lambda idx, doc: None,  # type: ignore[return-value]
+            qa_loader=lambda: None,
+            qa_case_builder=lambda idx, doc: None,
         )
         cases = _make_cases(4)