diff --git a/CONNECT-DYNAMICS.md b/CONNECT-DYNAMICS.md
index 8c12185..f9f53ae 100644
--- a/CONNECT-DYNAMICS.md
+++ b/CONNECT-DYNAMICS.md
@@ -30,4 +30,10 @@ This is not a closed ISV black box. It is a community-shaped bridge from OSINT-g
 
 Early public versioning. Demo data only until security pass. No customer PHI. No live tech GPS in public builds until consent model is locked.
 
-Repo: https://github.com/NukaSoft/gods-eye-view
\ No newline at end of file
+Repo: https://github.com/NukaSoft/gods-eye-view
+
+## Layer module (eggbot 2026-09-09)
+- src/data/dataverseFs.js — Cesium overlay via local GeoJSON loader
+- Sample: public/samples/dataverse-fs-ww-demo.geojson`r
+- Env: VITE_DATAVERSE_FS_GEOJSON_URL (adapter URL); default = sample
+- Toggle appears with other local data layers (Dynamics Field Service)
diff --git a/public/samples/dataverse-fs-ww-demo.geojson b/public/samples/dataverse-fs-ww-demo.geojson
new file mode 100644
index 0000000..05fd265
--- /dev/null
+++ b/public/samples/dataverse-fs-ww-demo.geojson
@@ -0,0 +1,96 @@
+{
+  "type": "FeatureCollection",
+  "name": "dataverse-fs-ww-demo",
+  "crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
+  "properties": {
+    "source": "sample",
+    "org": "nukasoft.crm.dynamics.com",
+    "theme": "WeatherWyze",
+    "disclaimer": "Synthetic demo coordinates for GEV layer spike. Not live GPS. No real customer PHI. Scrub before any public PR."
+  },
+  "features": [
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [-85.6681, 42.9634] },
+      "properties": {
+        "kind": "customer",
+        "entity": "account",
+        "id": "00000000-0000-0000-0000-000000000101",
+        "name": "WW Demo Municipal Utilities",
+        "status": "active"
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [-85.6702, 42.9610] },
+      "properties": {
+        "kind": "site",
+        "entity": "msdyn_functionallocation",
+        "id": "00000000-0000-0000-0000-000000000201",
+        "name": "WW Site — River Pump Station",
+        "status": "active"
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [-85.6655, 42.9662] },
+      "properties": {
+        "kind": "site",
+        "entity": "msdyn_functionallocation",
+        "id": "00000000-0000-0000-0000-000000000202",
+        "name": "WW Site — North Substation",
+        "status": "active"
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [-85.6702, 42.9611] },
+      "properties": {
+        "kind": "asset",
+        "entity": "msdyn_customerasset",
+        "id": "00000000-0000-0000-0000-000000000301",
+        "name": "Pump P-12",
+        "status": "active",
+        "locationSource": "site"
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [-85.6700, 42.9608] },
+      "properties": {
+        "kind": "workorder",
+        "entity": "msdyn_workorder",
+        "id": "00000000-0000-0000-0000-000000000401",
+        "name": "WW-DEMO-001",
+        "status": "open",
+        "priority": "high"
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [-85.6658, 42.9660] },
+      "properties": {
+        "kind": "workorder",
+        "entity": "msdyn_workorder",
+        "id": "00000000-0000-0000-0000-000000000402",
+        "name": "WW-DEMO-002",
+        "status": "open",
+        "priority": "normal"
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [-85.6670, 42.9645] },
+      "properties": {
+        "kind": "resource",
+        "entity": "bookableresource",
+        "id": "00000000-0000-0000-0000-000000000501",
+        "name": "WW Tech A (demo)",
+        "status": "available",
+        "locationSource": "start",
+        "updated": "2026-09-09T18:00:00Z",
+        "staleSec": 3600
+      }
+    }
+  ]
+}
diff --git a/src/data/dataverseFs.js b/src/data/dataverseFs.js
new file mode 100644
index 0000000..58ef802
--- /dev/null
+++ b/src/data/dataverseFs.js
@@ -0,0 +1,93 @@
+/**
+ * @module dataverseFs
+ * Dynamics 365 Field Service / Dataverse dispatch layer for God's Eye View.
+ * Default path: GeoJSON sample or VITE_DATAVERSE_FS_GEOJSON_URL (adapter).
+ * Browser does not call Dataverse OData by default — secrets stay in the adapter.
+ */
+
+import { createLocalGeoJsonLayer } from './localGeojson.js';
+
+export const DATAVERSE_FS_OVERLAY_SOURCE_ID = 'dataverse-fs';
+
+const ALLOWED_KINDS = new Set(['customer', 'site', 'asset', 'workorder', 'resource', 'contact']);
+
+/**
+ * Normalize a GeoJSON FeatureCollection for the FS layer (unit-testable, no Cesium).
+ * Drops features without finite lon/lat; keeps kind/id/name when present.
+ * @param {object} collection
+ * @returns {{type:string, features:object[]}}
+ */
+export function normalizeDataverseFsCollection(collection) {
+  if (!collection || collection.type !== 'FeatureCollection' || !Array.isArray(collection.features)) {
+    return { type: 'FeatureCollection', features: [] };
+  }
+  const features = [];
+  for (const f of collection.features) {
+    const coords = f?.geometry?.coordinates;
+    if (!Array.isArray(coords) || coords.length < 2) continue;
+    if (coords[0] == null || coords[1] == null) continue;
+    const lon = Number(coords[0]);
+    const lat = Number(coords[1]);
+    if (!Number.isFinite(lon) || !Number.isFinite(lat)) continue;
+    const props = f.properties && typeof f.properties === 'object' ? { ...f.properties } : {};
+    if (props.kind && !ALLOWED_KINDS.has(String(props.kind))) {
+      // keep unknown kinds out of semantic success counts, but still allow render if coords valid
+      // for v1 we skip unknown kinds to avoid false greens
+      continue;
+    }
+    features.push({
+      type: 'Feature',
+      geometry: { type: 'Point', coordinates: [lon, lat] },
+      properties: {
+        kind: props.kind ? String(props.kind) : 'site',
+        entity: props.entity ? String(props.entity) : 'unknown',
+        id: props.id != null ? String(props.id) : undefined,
+        name: props.name != null ? String(props.name) : 'Untitled',
+        status: props.status,
+        priority: props.priority,
+        href: props.href,
+        updated: props.updated,
+        staleSec: props.staleSec,
+      },
+    });
+  }
+  return { type: 'FeatureCollection', features };
+}
+
+function resolveGeoJsonUrl() {
+  const fromEnv = typeof import.meta !== 'undefined' && import.meta.env
+    ? import.meta.env.VITE_DATAVERSE_FS_GEOJSON_URL
+    : undefined;
+  if (fromEnv && String(fromEnv).trim()) return String(fromEnv).trim();
+  return '/samples/dataverse-fs-ww-demo.geojson';
+}
+
+const dataverseFsLayer = createLocalGeoJsonLayer({
+  id: DATAVERSE_FS_OVERLAY_SOURCE_ID,
+  url: resolveGeoJsonUrl(),
+  name: 'Dynamics Field Service',
+  color: '#742774',
+  icon: 'DV',
+  source: 'Dataverse FS',
+  labels: true,
+  labelMax: 800,
+  labelGridPx: 140,
+});
+
+export function getDataverseFsLayer() {
+  return dataverseFsLayer;
+}
+
+export async function setDataverseFsEnabled(viewer, enabled) {
+  if (!viewer) return;
+  if (enabled) await dataverseFsLayer.enable(viewer);
+  else await dataverseFsLayer.disable(viewer);
+}
+
+export async function refreshDataverseFs(viewer) {
+  if (!viewer) return;
+  await dataverseFsLayer.disable(viewer);
+  await dataverseFsLayer.enable(viewer);
+}
+
+export default dataverseFsLayer;
\ No newline at end of file
diff --git a/src/data/dataverseFs.test.mjs b/src/data/dataverseFs.test.mjs
new file mode 100644
index 0000000..864850e
--- /dev/null
+++ b/src/data/dataverseFs.test.mjs
@@ -0,0 +1,33 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { normalizeDataverseFsCollection } from './dataverseFs.js';
+
+test('normalize drops null coords and empty input', () => {
+  assert.deepEqual(normalizeDataverseFsCollection(null).features, []);
+  assert.deepEqual(normalizeDataverseFsCollection({ type: 'FeatureCollection', features: [] }).features, []);
+  const bad = {
+    type: 'FeatureCollection',
+    features: [
+      { type: 'Feature', geometry: { type: 'Point', coordinates: [null, 1] }, properties: { kind: 'site', id: '1', name: 'x' } },
+      { type: 'Feature', geometry: { type: 'Point', coordinates: [-85.67, 42.96] }, properties: { kind: 'site', id: '2', name: 'ok' } },
+    ],
+  };
+  const out = normalizeDataverseFsCollection(bad);
+  assert.equal(out.features.length, 1);
+  assert.equal(out.features[0].properties.id, '2');
+  assert.equal(out.features[0].properties.name, 'ok');
+  assert.equal(out.features[0].properties.kind, 'site');
+});
+
+test('normalize skips unknown kinds', () => {
+  const fc = {
+    type: 'FeatureCollection',
+    features: [
+      { type: 'Feature', geometry: { type: 'Point', coordinates: [1, 2] }, properties: { kind: 'spaceship', id: '9', name: 'nope' } },
+      { type: 'Feature', geometry: { type: 'Point', coordinates: [3, 4] }, properties: { kind: 'workorder', id: '8', name: 'WO' } },
+    ],
+  };
+  const out = normalizeDataverseFsCollection(fc);
+  assert.equal(out.features.length, 1);
+  assert.equal(out.features[0].properties.kind, 'workorder');
+});
\ No newline at end of file
diff --git a/src/data/localLayers.js b/src/data/localLayers.js
index 3128c0d..a3cddd3 100644
--- a/src/data/localLayers.js
+++ b/src/data/localLayers.js
@@ -1,4 +1,5 @@
 import { createLocalGeoJsonLayer } from './localGeojson.js';
+import dataverseFsLayer from './dataverseFs.js';
 import { createFirmsHeatmapLayer } from './firmsHeatmap.js';
 import submarineCablesLayer from './telegeographySubmarineCables.js';
 
@@ -45,6 +46,7 @@ const fires = createFirmsHeatmapLayer({
 });
 
 export default [
+  dataverseFsLayer,
   datacenters,
   dams,
   submarineCablesLayer,