diff --git a/templates/node/package-lock.json.twig b/templates/node/package-lock.json.twig
index c30d0be602..23186c5036 100644
--- a/templates/node/package-lock.json.twig
+++ b/templates/node/package-lock.json.twig
@@ -26,6 +26,9 @@
         "typescript": "5.9.3",
         "typescript-eslint": "8.70.0"
       },
+      "engines": {
+        "node": ">=18.17"
+      },
       "overrides": {
         "esbuild": "^0.28.1",
         "js-yaml": "^4.2.0",
diff --git a/templates/node/package.json.twig b/templates/node/package.json.twig
index dd6f8e6146..90aeba1132 100644
--- a/templates/node/package.json.twig
+++ b/templates/node/package.json.twig
@@ -15,6 +15,9 @@
         "lint:fix": "eslint --fix .",
         "analyse": "tsc --noEmit"
     },
+    "engines": {
+        "node": ">=18.17"
+    },
     "exports": {
         ".": {
             "import": {
diff --git a/templates/python/pyproject.toml.twig b/templates/python/pyproject.toml.twig
index 8b58432faf..083792aef8 100644
--- a/templates/python/pyproject.toml.twig
+++ b/templates/python/pyproject.toml.twig
@@ -30,6 +30,7 @@ classifiers = [
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
 ]
 
 [project.optional-dependencies]
diff --git a/templates/python/setup.py.twig b/templates/python/setup.py.twig
index 7b62345559..5b08018e24 100644
--- a/templates/python/setup.py.twig
+++ b/templates/python/setup.py.twig
@@ -35,5 +35,6 @@ setuptools.setup(
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
+        'Programming Language :: Python :: 3.13',
     ],
 )
diff --git a/templates/ruby/gemspec.twig b/templates/ruby/gemspec.twig
index 6a17f42f14..550fe9a203 100644
--- a/templates/ruby/gemspec.twig
+++ b/templates/ruby/gemspec.twig
@@ -7,6 +7,7 @@ Gem::Specification.new do |spec|
     spec.homepage = '{{ spec.info.contact.url }}'
     spec.email = '{{ spec.info.contact.email }}'
     spec.files = Dir['lib/**/*.rb']
+    spec.required_ruby_version = '>= 2.7'
 
     spec.add_dependency 'mime-types', '~> 3.4.1'
 end
diff --git a/tests/generation/GenerationTest.php b/tests/generation/GenerationTest.php
index 0c7e488490..3c5a251121 100644
--- a/tests/generation/GenerationTest.php
+++ b/tests/generation/GenerationTest.php
@@ -110,6 +110,39 @@ final class GenerationTest extends TestCase
         'rust' => ['src/enums/webhook_event.rs', 'pub const UserCreated', 'src/enums/localized_status.rs', 'Value1,', 'src/enums/province_type.rs', 'Capital,'],
     ];
 
+    /**
+     * Package metadata each language must declare, by generated path: the
+     * runtime floor its code and dependencies need, and every interpreter
+     * version the e2e suite runs it on.
+     *
+     * @var array<string, array<string, list<string>>>
+     */
+    private const array PACKAGE_METADATA = [
+        'ruby' => [
+            'appwrite.gemspec' => ["spec.required_ruby_version = '>= 2.7'"],
+        ],
+        'node' => [
+            'package.json' => ['"engines": {', '"node": ">=18.17"'],
+            'package-lock.json' => ['"engines": {', '"node": ">=18.17"'],
+        ],
+        'python' => [
+            'setup.py' => [
+                "'Programming Language :: Python :: 3.9'",
+                "'Programming Language :: Python :: 3.10'",
+                "'Programming Language :: Python :: 3.11'",
+                "'Programming Language :: Python :: 3.12'",
+                "'Programming Language :: Python :: 3.13'",
+            ],
+            'pyproject.toml' => [
+                '"Programming Language :: Python :: 3.9"',
+                '"Programming Language :: Python :: 3.10"',
+                '"Programming Language :: Python :: 3.11"',
+                '"Programming Language :: Python :: 3.12"',
+                '"Programming Language :: Python :: 3.13"',
+            ],
+        ],
+    ];
+
     /** @var array<string, array<string, string>> generated tree per language and platform */
     private static array $generated = [];
 
@@ -687,6 +720,27 @@ public function testEnumsAreDeclared(string $name): void
         }
     }
 
+    /** @return iterable<string, array{string}> */
+    public static function packageLanguages(): iterable
+    {
+        foreach (\array_keys(self::PACKAGE_METADATA) as $name) {
+            yield $name => [$name];
+        }
+    }
+
+    #[DataProvider('packageLanguages')]
+    public function testPackageMetadataIsDeclared(string $name): void
+    {
+        $files = $this->generate($name, 'server');
+
+        foreach (self::PACKAGE_METADATA[$name] as $path => $declarations) {
+            $this->assertArrayHasKey($path, $files, "{$name} did not generate {$path}");
+            foreach ($declarations as $declaration) {
+                $this->assertStringContainsString(\strtolower($declaration), $files[$path], "{$name}: {$path} lacks `{$declaration}`");
+            }
+        }
+    }
+
     /**
      * Twig autoescapes to HTML, so a description that reaches a template through
      * an unsafe filter arrives as `&quot;` rather than `"`. Go doc comments are