diff --git a/.changeset/odd-points-report.md b/.changeset/odd-points-report.md
new file mode 100644
index 0000000..6c65ea8
--- /dev/null
+++ b/.changeset/odd-points-report.md
@@ -0,0 +1,5 @@
+---
+'@openai/chatkit-react': minor
+---
+
+Add `onEffect` to `UseChatKitOptions`
diff --git a/.changeset/shaggy-steaks-compare.md b/.changeset/shaggy-steaks-compare.md
new file mode 100644
index 0000000..ff315fc
--- /dev/null
+++ b/.changeset/shaggy-steaks-compare.md
@@ -0,0 +1,5 @@
+---
+'@openai/chatkit': minor
+---
+
+Add `chatkit.effect` event