diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
new file mode 100644
index 0000000..beb8be0
--- /dev/null
+++ b/.claude-plugin/marketplace.json
@@ -0,0 +1,16 @@
+{
+  "name": "claude-archeflow-plugin",
+  "description": "ArcheFlow plugin marketplace",
+  "plugins": [
+    {
+      "name": "archeflow",
+      "description": "Multi-agent orchestration with Jungian archetypes. PDCA quality cycles, shadow detection, git worktree isolation.",
+      "version": "0.3.0",
+      "path": ".",
+      "keywords": [
+        "orchestration", "multi-agent", "archetypes", "pdca",
+        "code-review", "quality", "worktrees", "shadow-detection"
+      ]
+    }
+  ]
+}