diff --git a/.github/workflows/yamllint.yml b/.github/workflows/validate-yaml.yml
similarity index 55%
rename from .github/workflows/yamllint.yml
rename to .github/workflows/validate-yaml.yml
index e5e378f..2e10d40 100644
--- a/.github/workflows/yamllint.yml
+++ b/.github/workflows/validate-yaml.yml
@@ -1,14 +1,14 @@
-name: 'Yamllint GitHub Actions'
+name: 'YAML Validation'
 on:
   - pull_request
 jobs:
-  yamllint:
-    name: 'Yamllint'
+  validate:
+    name: 'Validate YAML'
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout'
         uses: actions/checkout@master
-      - name: 'Yamllint'
+      - name: 'Run Yamllint'
         uses: karancode/yamllint-github-action@master
         with:
           yamllint_file_or_dir: 'package-list.yaml'
@@ -16,4 +16,8 @@ jobs:
           yamllint_comment: true
           yamllint_config_filepath: 'yamllint-config.yml'
         env:
-          GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
+          GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: 'Schema Validation'
+        run: |
+          npm i -g yaml-schema-validator
+          schema validate -e -f package-list.yaml -s schema.yml
\ No newline at end of file
diff --git a/package-list.yaml b/package-list.yaml
index bc5a7fd..b1e83f8 100644
--- a/package-list.yaml
+++ b/package-list.yaml
@@ -59,11 +59,11 @@ packages:
     author: Arduino
     description: A Python client for the Arduino IoT cloud, which runs on both CPython and MicroPython.
     tags: ["cloud", "iot"]
-    required_runtime: ">=1.22.0"
+    required_runtime_version: ">=1.22.0"
     verification:
       - fqbn: "arduino:mbed_portenta:envie_m7"
         library_version: "0.0.7"
-        micropython_version: "1.19.1"
+        runtime_version: "1.19.1"
         tester: "arduino"
     license: Mozilla Public License Version 2.0
   - name: BME680-Micropython
@@ -78,7 +78,7 @@ packages:
     verification:
       - fqbn: "arduino:mbed_nano:nanorp2040connect"
         library_version: null
-        micropython_version: "1.19.1"
+        runtime_version: "1.19.1"
         tester: "arduino"
   - name: micropython-my9221
     author: Mike Causer
@@ -91,7 +91,7 @@ packages:
     verification:
       - fqbn: "arduino:mbed_nano:nanorp2040connect"
         library_version: null
-        micropython_version: "1.19.1"
+        runtime_version: "1.19.1"
         tester: "arduino"
   - name: micropython-rotary
     url: https://github.com/miketeachman/micropython-rotary
@@ -101,12 +101,13 @@ packages:
     verification:
       - fqbn: "arduino:mbed_nano:nanorp2040connect"
         library_version: null
-        micropython_version: "1.19.1"
+        runtime_version: "1.19.1"
         tester: "arduino"
     license: MIT License
   - name: micropython_servo_pdm
     author: Taras Prokofiev
     url: https://github.com/TTitanUA/micropython_servo_pdm
+    description: A MicroPython library for controlling servos using PDM (Pulse Density Modulation) on the Raspberry Pi Pico.
     tags: ["servo"]
     package_descriptor:
       urls:
@@ -118,7 +119,7 @@ packages:
     verification:
       - fqbn: "arduino:mbed_nano:nanorp2040connect"
         library_version: null
-        micropython_version: "1.19.1"
+        runtime_version: "1.19.1"
         tester: "arduino"
     license: MIT License
   - name: picoservo
@@ -156,7 +157,7 @@ packages:
     verification:
       - fqbn: "arduino:mbed_nano:nanorp2040connect"
         library_version: null
-        micropython_version: "1.19.1"
+        runtime_version: "1.19.1"
         tester: "arduino"
     license: MIT License
   - name: MAX30102-MicroPython-driver
@@ -230,7 +231,7 @@ packages:
     verification:
       - fqbn: "arduino:mbed_nano:nanorp2040connect"
         library_version: "1.3.0"
-        micropython_version: "1.19.1"
+        runtime_version: "1.19.1"
         tester: "arduino"
   - name: MicroPython-Button
     author: Ubi de Feo
@@ -240,7 +241,7 @@ packages:
     verification:
       - fqbn: "arduino:mbed_nano:nanorp2040connect"
         library_version: null
-        micropython_version: "1.19.1"
+        runtime_version: "1.19.1"
         tester: "arduino"
   - name: micropython-max7219
     url: https://github.com/mcauser/micropython-max7219
@@ -269,11 +270,11 @@ packages:
     verification:
       - fqbn: "arduino:esp32:nano_nora"
         library_version: "3.4.2"
-        micropython_version: "1.20.0"
+        runtime_version: "1.20.0"
         tester: "arduino"
       - fqbn: "esp32:esp32:esp32s3"
         library_version: "3.4.2"
-        micropython_version: "1.20.0"
+        runtime_version: "1.20.0"
         tester: "arduino"
   - name: ucPack-mpy
     url: https://github.com/arduino/ucPack-mpy
diff --git a/schema.yml b/schema.yml
new file mode 100644
index 0000000..2fcf749
--- /dev/null
+++ b/schema.yml
@@ -0,0 +1,34 @@
+---
+packages:
+  - name:
+      type: string
+      required: true
+    url:
+      type: string
+      required: true
+    description:
+      type: string
+      required: true
+    author:
+      type: string
+      required: true
+    tags:
+      - type: string
+    required_runtime_version:
+      type: string
+    license:
+      type: string
+    docs:
+      type: string
+    package_descriptor:
+      urls:
+        - - type: string
+    verification:
+      - fqbn:
+          type: string
+        library_version:
+          type: string
+        runtime_version:
+          type: string
+        tester:
+          type: string
\ No newline at end of file