Add atlan to marketplace

.claude-plugin/marketplace.json

@@ -1040,14 +1040,14 @@
       "homepage": "https://github.com/intercom/claude-plugin-external"
     },
     {
-      "name": "prisma",
-      "description": "Prisma MCP integration for Postgres database management, schema migrations, SQL queries, and connection string management. Provision Prisma Postgres databases, run migrations, and interact with your data directly.",
+      "name": "atlan",
+      "description": "Atlan data catalog plugin for Claude Code. Search, explore, govern, and manage your data assets through natural language. Powered by the Atlan MCP server with semantic search, lineage traversal, glossary management, data quality rules, and more.",
       "source": {
         "source": "url",
-        "url": "https://github.com/prisma/claude-plugin.git",
-        "sha": "815dbc4a045a29e3b81510ba0e3ab806f1baaf0e"
+        "url": "https://github.com/atlanhq/agent-toolkit.git",
+        "sha": "acdf284da6aa98b14f8dad90a9827006d8df425c"
       },
-      "homepage": "https://prisma.io"
+      "homepage": "https://docs.atlan.com/"
     }
   ]
 }