diff --git a/spec/schemas/nodes.info.yaml b/spec/schemas/nodes.info.yaml
index f687b4523..790842f6f 100644
--- a/spec/schemas/nodes.info.yaml
+++ b/spec/schemas/nodes.info.yaml
@@ -21,6 +21,7 @@ components:
         - aggregations
         - indices
         - search_pipelines
+        - _all
     ResponseBase:
       allOf:
         - type: object
diff --git a/tests/_core/nodes.yaml b/tests/_core/nodes.yaml
index 608232cb3..c03735f19 100644
--- a/tests/_core/nodes.yaml
+++ b/tests/_core/nodes.yaml
@@ -7,3 +7,36 @@ chapters:
     method: GET
     response:
       status: 200
+  - synopsis: Nodes thread_pool metric with a json response.
+    path: /_nodes/{metric}
+    method: GET
+    parameters:
+        metric:
+          - thread_pool
+    response:
+      status: 200
+  - synopsis: Nodes jvm and thread_pool metric with a json response.
+    path: /_nodes/{metric}
+    method: GET
+    parameters:
+      metric:
+        - jvm
+        - thread_pool
+    response:
+      status: 200
+  - synopsis: Nodes _all metric with a json response.
+    path: /_nodes/{metric}
+    method: GET
+    parameters:
+      metric:
+        - _all
+    response:
+      status: 200
+  - synopsis: Nodes data:true metric with a json response.
+    path: /_nodes/{metric}
+    method: GET
+    parameters:
+      metric:
+        - master:true
+    response:
+      status: 200
\ No newline at end of file