diff --git a/.github/workflows/go-tests.yml b/.github/workflows/go-tests.yml
new file mode 100644
index 0000000..d829aae
--- /dev/null
+++ b/.github/workflows/go-tests.yml
@@ -0,0 +1,29 @@
+name: Go Tests
+
+# Security: grants only the minimal scopes required.
+permissions:
+  contents: read
+
+on:
+  pull_request:
+    paths:
+      - "go/**"
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.24"
+          cache-dependency-path: go/go.sum
+
+      # Runs test with shuffle and count to expose flaky tests.
+      - name: Run tests
+        working-directory: go
+        run: go test -count=5 -shuffle=on ./...
diff --git a/go/client_test.go b/go/client_test.go
index 8b86cf6..d5253c1 100644
--- a/go/client_test.go
+++ b/go/client_test.go
@@ -160,22 +160,22 @@ func TestClient_GetLatestReport(t *testing.T) {
 }
 
 func TestClient_GetReportPage(t *testing.T) {
-	expectedInitialTS := uint64(1234567891)
+	expectedInitialTS := uint64(1234567890)
 
 	expectedReportPage1 := &ReportPage{
 		Reports: []*ReportResponse{
-			{FeedID: feed1, FullReport: hexutil.Bytes(`report1 payload`)},
-			{FeedID: feed1, FullReport: hexutil.Bytes(`report2 payload`)},
+			{FeedID: feed1, ObservationsTimestamp: 1234567890, FullReport: hexutil.Bytes(`report1 payload`)},
+			{FeedID: feed1, ObservationsTimestamp: 1234567891, FullReport: hexutil.Bytes(`report2 payload`)},
 		},
-		NextPageTS: 1234567899,
+		NextPageTS: 1234567892,
 	}
 
 	expectedReportPage2 := &ReportPage{
 		Reports: []*ReportResponse{
-			{FeedID: feed1, FullReport: hexutil.Bytes(`report3 payload`)},
-			{FeedID: feed1, FullReport: hexutil.Bytes(`report4 payload`)},
+			{FeedID: feed1, ObservationsTimestamp: 1234567892, FullReport: hexutil.Bytes(`report3 payload`)},
+			{FeedID: feed1, ObservationsTimestamp: 1234567893, FullReport: hexutil.Bytes(`report4 payload`)},
 		},
-		NextPageTS: 1234567999,
+		NextPageTS: 1234567894,
 	}
 
 	ms := newMockServer(func(w http.ResponseWriter, r *http.Request) {