Add aws-transform plugin (#2968)

.claude-plugin/marketplace.json

@@ -401,6 +401,22 @@
       },
       "homepage": "https://github.com/awslabs/startups"
     },
+    {
+      "name": "aws-transform",
+      "description": "Migrate, modernize, and upgrade codebases to AWS. Transforms .NET Framework to .NET 8/10, mainframe COBOL to Java, VMware VMs to EC2, SQL Server to Aurora, and upgrades Java/Python/Node.js versions and AWS SDKs. AWS Transform - continuous modernization analyzes codebases for tech debt, security issues, and upgrade opportunities, then remediates them.",
+      "author": {
+        "name": "Amazon Web Services"
+      },
+      "category": "migration",
+      "source": {
+        "source": "git-subdir",
+        "url": "https://github.com/awslabs/agent-plugins.git",
+        "path": "plugins/aws-transform",
+        "ref": "main",
+        "sha": "46fd59cd1a0751ac15e34754f86f9a06b0900d2c"
+      },
+      "homepage": "https://github.com/awslabs/agent-plugins"
+    },
     {
       "name": "azure",
       "description": "Transform Claude into an Azure expert. This plugin integrates the Azure MCP server and specialized Azure skills to move beyond generic advice. It enables Claude to perform real-world tasks: listing resources, validating deployments, diagnosing infrastructure issues, and optimizing costs across 50+ Azure services.",