Add langfuse plugin (#2541)

.claude-plugin/marketplace.json

@@ -3179,6 +3179,20 @@
         "sha": "a2162c384e1ffb68b3bf14783ea9a1a762c85ff5"
       },
       "homepage": "https://github.com/zscaler/zscaler-mcp-server"
+    },
+    {
+      "name": "langfuse",
+      "description": "Skills for working with Langfuse, the open-source LLM engineering platform for tracing, prompt management, and evaluation.",
+      "author": {
+        "name": "Langfuse"
+      },
+      "category": "monitoring",
+      "source": {
+        "source": "url",
+        "url": "https://github.com/langfuse/skills.git",
+        "sha": "84657a123c12e87d7fa32cbc20197144674e110a"
+      },
+      "homepage": "https://langfuse.com"
     }
   ]
 }