Add fastly-agent-toolkit to marketplace

.claude-plugin/marketplace.json

@@ -1040,14 +1040,14 @@
       "homepage": "https://github.com/intercom/claude-plugin-external"
     },
     {
-      "name": "postiz",
-      "description": "Social media automation CLI for scheduling posts, managing integrations, uploading media, and tracking analytics across 28+ platforms including X, LinkedIn, Reddit, YouTube, TikTok, Instagram, and more",
+      "name": "fastly-agent-toolkit",
+      "description": "Fastly development tools and platform skills",
       "source": {
         "source": "url",
-        "url": "https://github.com/gitroomhq/postiz-agent.git",
-        "sha": "c5d1bf5f7e95a71e230fc19ae2150ddd9c549854"
+        "url": "https://github.com/fastly/fastly-agent-toolkit.git",
+        "sha": "d9ba949011e725be55cae11acc741aa1f1f393d3"
       },
-      "homepage": "https://postiz.com/agent"
+      "homepage": "https://github.com/fastly/fastly-agent-toolkit/blob/main/README.md"
     }
   ]
 }