diff --git a/artifact.1/tests/data/sample_runs.json b/artifact.1/tests/data/sample_runs.json
new file mode 100644
index 0000000..4021419
--- /dev/null
+++ b/artifact.1/tests/data/sample_runs.json
@@ -0,0 +1,23 @@
+[
+  {
+    "run_id": "run_15",
+    "healing_rate": 0.94,
+    "overhead_ms": 105.6,
+    "warn_rate": 0.03,
+    "unknown_rate": 0.01
+  },
+  {
+    "run_id": "run_16",
+    "healing_rate": 0.91,
+    "overhead_ms": 120.2,
+    "warn_rate": 0.05,
+    "unknown_rate": 0.02
+  },
+  {
+    "run_id": "run_16b",
+    "healing_rate": 0.97,
+    "overhead_ms": 98.4,
+    "warn_rate": 0.02,
+    "unknown_rate": 0.01
+  }
+]
\ No newline at end of file