fix: disable fullscreen table token animation

app/globals.css

@@ -354,6 +354,13 @@ input:focus-visible {
   --sd-easing: cubic-bezier(0.16, 1, 0.3, 1);
 }
 
+[data-streamdown="table-fullscreen"] [data-sd-animate] {
+  animation: none;
+  filter: none;
+  opacity: 1;
+  transform: none;
+}
+
 .agent-chart-line {
   animation: agent-chart-line-in 220ms cubic-bezier(0.22, 1, 0.36, 1) both;
   transform-origin: center;

features/agent/table-fullscreen-animation.test.ts

@@ -0,0 +1,13 @@
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+import { describe, expect, it } from "vitest";
+
+describe("Streamdown fullscreen table", () => {
+  it("disables inherited token animations only inside the fullscreen copy", () => {
+    const styles = readFileSync(join(process.cwd(), "app/globals.css"), "utf8");
+
+    expect(styles).toMatch(
+      /\[data-streamdown="table-fullscreen"\] \[data-sd-animate\] \{\s*animation: none;\s*filter: none;\s*opacity: 1;\s*transform: none;\s*\}/
+    );
+  });
+});