diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 1730048a9262..67452aab2c97 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -55,6 +55,18 @@ jobs:
   - script: 'node scripts/modelValidation.js'
     displayName: 'Model Validation'
 
+- job: "Avocado"
+  pool:
+    vmImage: 'Ubuntu 16.04'
+  continueOnError: true
+  steps:
+  - task: Npm@1
+    displayName: 'npm install'
+    inputs:
+      verbose: false
+  - script: './node_modules/.bin/ts-node scripts/avocado.ts'
+    displayName: 'Avocado'
+
 - job: "BreakingChange"
   condition: "not(variables['PRIVATE'])"
   pool:
diff --git a/package.json b/package.json
index 19a790c8a060..77cbe4b1efa1 100644
--- a/package.json
+++ b/package.json
@@ -10,24 +10,25 @@
   "description": "Tests for Azure REST API Specifications",
   "license": "MIT",
   "devDependencies": {
+    "@azure/avocado": "^0.2.0",
+    "@azure/oad": "^0.2.1",
     "@microsoft.azure/async-io": "^1.0.21",
     "@microsoft.azure/literate": "^1.0.21",
     "@microsoft.azure/polyfill": "^1.0.17",
     "@ts-common/commonmark-to-markdown": "^1.1.10",
-    "@ts-common/fs": "0.1.0",
+    "@ts-common/fs": "0.1.1",
     "@types/js-yaml": "^3.12.0",
     "fs-extra": "^3.0.1",
     "glob": "^5.0.14",
-    "js-yaml": "^3.12.2",
+    "js-yaml": "^3.13.0",
     "json-schema-ref-parser": "^3.1.2",
     "mocha": "*",
-    "@azure/oad": "^0.2.1",
-    "oav": "^0.14.5",
+    "oav": "^0.14.8",
     "request": "^2.61.0",
     "request-promise-native": "^1.0.5",
+    "ts-node": "^8.0.3",
     "typescript": "^3.2.4",
-    "z-schema": "^3.25.1",
-    "ts-node": "^8.0.3"
+    "z-schema": "^3.25.1"
   },
   "dependencies": {
     "@octokit/rest": "^15.2.6"
diff --git a/scripts/avocado.ts b/scripts/avocado.ts
new file mode 100644
index 000000000000..f0664c71dfb0
--- /dev/null
+++ b/scripts/avocado.ts
@@ -0,0 +1,44 @@
+const utils = require('../test/util/utils')
+import * as path from "path"
+import * as avocado from "@azure/avocado"
+import * as openApiMarkDown from "@azure/openapi-markdown"
+import * as yaml from "js-yaml"
+
+async function main() {
+  const swaggersToProcess = utils.getFilesChangedInPR();
+  let errorNumbers = 0
+  const set = new Set<string>()
+  for (const swagger of swaggersToProcess) {
+    const rm = await openApiMarkDown.findReadMe(path.dirname(swagger))
+    if (rm === undefined) {
+      console.error(`No readme.md for ${swagger}`)
+      ++errorNumbers
+    } else {
+      const dir = path.dirname(rm)
+      if (dir.includes("specification")) {
+        set.add(dir)
+      } else {
+        console.error(`No readme.md for ${swagger}`)
+        ++errorNumbers
+      }
+    }
+  }
+  for (const swagger of set) {
+    try {
+      console.log(swagger)
+      const errors = avocado.avocado(swagger)
+      for await (const e of errors) {
+        console.error(yaml.safeDump(e))
+        ++errorNumbers
+      }
+    } catch (e) {
+      console.error("fatal error:")
+      console.error(e)
+      ++errorNumbers
+    }
+  }
+  console.log(`errors: ${errorNumbers}`)
+  return errorNumbers === 0 ? 0 : 1
+}
+
+main().then(process.exit)
\ No newline at end of file
diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/stable/2018-05-05/examples/Alerts_ChangeState.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/stable/2018-05-05/examples/Alerts_ChangeState.json
index fdcdb0b21e95..89518ac272c3 100644
--- a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/stable/2018-05-05/examples/Alerts_ChangeState.json
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/stable/2018-05-05/examples/Alerts_ChangeState.json
@@ -32,12 +32,12 @@
 					  "monitorConditionResolvedDateTime": "2018-09-13T15:51:02Z"
 					},
 					"egressConfig": {},
-					"context": {}				
+					"context": {}
 				},
 				"id":"/subscriptions/9e261de7-c804-4b9d-9ebf-6f50fe350a9a/providers/Microsoft.AlertsManagement/alerts/66114d64-d9d9-478b-95c9-b789d6502100",
 				"type":"Microsoft.AlertsManagement/alerts",
 				"name":"cpu alert"
 			}
-		}	
+		}
 	}
 }