diff --git a/validation/issue-1-result.json b/validation/issue-1-result.json
new file mode 100644
index 0000000..785b420
--- /dev/null
+++ b/validation/issue-1-result.json
@@ -0,0 +1,76 @@
+{
+  "data": {
+    "status": "passed",
+    "checks": 29378,
+    "counts": {
+      "junction": 805,
+      "outfall": 9,
+      "storage": 1,
+      "conduit": 843,
+      "pump": 3,
+      "weir": 1
+    },
+    "mismatches": [],
+    "excluded_facilities": [
+      {
+        "id": "OUT_PUMP",
+        "type": "outfall",
+        "reason": "missing_coordinate"
+      },
+      {
+        "id": "UHR1-01411",
+        "type": "conduit",
+        "reason": "coincident_endpoints"
+      },
+      {
+        "id": "C_OUT_PUMP",
+        "type": "conduit",
+        "reason": "missing_coordinate"
+      }
+    ],
+    "tolerance_absolute": 1e-06,
+    "scope": "Input/JSON consistency only; no hydraulic or surveyed geometry validation."
+  },
+  "browser": {
+    "status": "passed",
+    "facilities_checked": 1662,
+    "search_click_samples": [
+      "MH3",
+      "UHR1-0058",
+      "UHR1-02901",
+      "OUT_PUMP",
+      "UHR1-01411",
+      "C_OUT_PUMP"
+    ],
+    "checks": [
+      "all facility information panels",
+      "summary counts",
+      "real search/selection clicks",
+      "missing-facility explanations",
+      "unknown ID",
+      "scale reset",
+      "plan view",
+      "layer toggles",
+      "audit dialog",
+      "reset",
+      "no page errors"
+    ],
+    "browser": "156.0.4314.42",
+    "limitations": [
+      "Information consistency; screenshot review is separate from dimensional geometry verification."
+    ]
+  },
+  "validator_unit_tests": {
+    "passed": 11,
+    "failed": 0
+  },
+  "tested_source_sha256": "1919a11dbb7a4b1d6988da1b9a4bda4529655fd89abc7285cf10703a1d7c1843",
+  "tested_network_blob": "55f77ce41696118dcf1e0c15b7eafb60271ff9d5",
+  "tested_base_commit": "5e81e9cfe9a67c1589f50ff087e80c4893e01b64",
+  "environment": "Windows Python 3.12 / Playwright 1.62.1 / headless Edge; WSL execution not yet verified",
+  "visual_review": [
+    "overview.png",
+    "facility-2.png"
+  ],
+  "application_files_changed": false
+}