diff --git a/packages/session-ui/src/components/timeline-playground.stories.tsx b/packages/session-ui/src/components/timeline-playground.stories.tsx
index 9a959e30d5c..53699094ac6 100644
--- a/packages/session-ui/src/components/timeline-playground.stories.tsx
+++ b/packages/session-ui/src/components/timeline-playground.stories.tsx
@@ -1221,7 +1221,9 @@ function Playground() {
     message: { [session().id]: state.messages },
     part: state.parts,
     provider: {
-      all: new Map([["anthropic", { id: "anthropic", models: { "claude-sonnet-4-20250514": { name: "Claude Sonnet" } } }]]),
+      all: new Map([
+        ["anthropic", { id: "anthropic", models: { "claude-sonnet-4-20250514": { name: "Claude Sonnet" } } }],
+      ]),
       connected: ["anthropic"],
       default: {},
     },