Add sanity-plugin to marketplace

.claude-plugin/marketplace.json

@@ -686,17 +686,18 @@
       "homepage": "https://github.com/semgrep/mcp-marketplace.git"
     },
     {
-      "name": "legalzoom",
-      "description": "Attorney guidance and legal tools for business and personal needs. AI-powered document review identifies critical risks and important clauses, advises when to engage an attorney, and routes to LegalZoom's network when professional expertise is needed.",
-      "category": "productivity",
-      "source": {
-        "source": "git-subdir",
-        "url": "legalzoom/claude-plugins",
-        "path": "plugins/legalzoom",
-        "ref": "main",
-        "sha": "f9fd8a0ca6e1421bc1aacb113a109663a7a6f6d8"
+      "name": "sanity-plugin",
+      "description": "Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual Editing.",
+      "category": "development",
+      "author": {
+        "name": "Sanity"
       },
-      "homepage": "https://www.legalzoom.com/"
+      "source": {
+        "source": "url",
+        "url": "https://github.com/sanity-io/agent-toolkit.git",
+        "sha": "4b1fb10bd707a22cf0cdfad5374ffc885f2ffa8d"
+      },
+      "homepage": "https://www.sanity.io"
     }
   ]
 }