Add clay plugin

Driver: dir-plugin-add-official

.claude-plugin/marketplace.json

@@ -871,6 +871,22 @@
       "category": "security",
       "homepage": "https://github.com/anthropics/claude-plugins-official/tree/main/plugins/claude-security"
     },
+    {
+      "name": "clay",
+      "description": "Build with Clay in Claude Code",
+      "author": {
+        "name": "Clay"
+      },
+      "category": "productivity",
+      "source": {
+        "source": "git-subdir",
+        "url": "https://github.com/clay-run/agent-plugins.git",
+        "path": "clay",
+        "ref": "main",
+        "sha": "a475e41432cc458122c060396e2e254edae5a4d0"
+      },
+      "homepage": "https://www.clay.com/agent-plugin"
+    },
     {
       "name": "clickhouse",
       "description": "Connect Claude to your ClickHouse Cloud databases. Browse organizations, services, databases, and table schemas. Run read-only SQL queries against your data and get instant analytical answers. Monitor service backups, review billing costs, and inspect ClickPipe configurations - all through natural conversation.",