Add atlan to marketplace

.claude-plugin/marketplace.json

@@ -1040,16 +1040,14 @@
       "homepage": "https://github.com/intercom/claude-plugin-external"
     },
     {
-      "name": "ai-firstify",
-      "description": "AI-first project auditor and re-engineer based on the 9 design principles and 7 design patterns from the TechWolf AI-First Bootcamp",
+      "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": "git-subdir",
-        "url": "techwolf-ai/ai-first-toolkit",
-        "path": "plugins/ai-firstify",
-        "ref": "main",
-        "sha": "7f18e11d694b9ae62ea3009fbbc175f08ae913df"
+        "source": "url",
+        "url": "https://github.com/atlanhq/agent-toolkit.git",
+        "sha": "acdf284da6aa98b14f8dad90a9827006d8df425c"
       },
-      "homepage": "https://ai-first.techwolf.ai"
+      "homepage": "https://docs.atlan.com/"
     }
   ]
 }