diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
new file mode 100644
index 0000000000..981fafc4d5
--- /dev/null
+++ b/.config/dotnet-tools.json
@@ -0,0 +1,12 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "fantomas-tool": {
+      "version": "4.6.0-alpha-007",
+      "commands": [
+        "fantomas"
+      ]
+    }
+  }
+}
\ No newline at end of file