diff --git a/.github/workflows/composer-validate.yml b/.github/workflows/composer-validate.yml
new file mode 100644
index 000000000..5f75b62af
--- /dev/null
+++ b/.github/workflows/composer-validate.yml
@@ -0,0 +1,30 @@
+name: "Check validity of composer.json"
+
+on:
+  pull_request:
+    branches:
+      - "v*.*"
+      - "master"
+      - "feature/*"
+  push:
+    branches:
+      - "v*.*"
+      - "master"
+      - "feature/*"
+
+jobs:
+  composer-validate:
+    name: "Check validity of composer.json"
+    runs-on: "ubuntu-24.04"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v4"
+        with:
+          submodules: true
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+
+      - name: "Run composer validate"
+        run: "composer validate --strict"
diff --git a/composer.json b/composer.json
index e1382cdac..42c103c1e 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,6 @@
 {
   "name": "mongodb/mongodb-extension",
+  "description": "MongoDB driver extension",
   "type": "php-ext",
   "keywords": ["database", "driver", "mongodb", "persistence"],
   "homepage": "https://jira.mongodb.org/browse/PHPC",
@@ -69,4 +70,4 @@
       }
     ]
   }
-}
\ No newline at end of file
+}