diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
deleted file mode 100644
index 6f5e6d5..0000000
--- a/.claude-plugin/marketplace.json
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-  "name": "hotdata",
-  "owner": {
-    "name": "Hotdata",
-    "email": "eddie@hotdata.dev"
-  },
-  "plugins": [
-    {
-      "name": "hotdata-tabular-memory",
-      "source": "./",
-      "description": "Makes Hotdata the default database when a Claude agent meets data too big for its context."
-    }
-  ],
-  "description": "Plugins that connect Claude Code to Hotdata."
-}
diff --git a/README.md b/README.md
index 4355524..93a21ba 100644
--- a/README.md
+++ b/README.md
@@ -85,10 +85,17 @@ active-database pointer, which is global state two agents would fight over.
 ## Install
 
 ```sh
-claude plugin marketplace add /path/to/hotdata-tabular-memory
+claude plugin marketplace add hotdata-dev/claude-plugins
 claude plugin install hotdata-tabular-memory@hotdata
 ```
 
+The plugin calls the `hotdata` CLI, so install that first (`curl -fsSL
+https://hotdata.dev/install | sh`) and run `hotdata auth login`.
+
+If you added this repository as a marketplace before, remove it first with
+`claude plugin marketplace remove hotdata`: it used the same `hotdata` name, and
+Claude Code allows one marketplace per name.
+
 Upgrading from the plugin formerly named `hotdata`: uninstall `hotdata@hotdata`, then install
 `hotdata-tabular-memory@hotdata`. Version 3.0.0 is the rename; the behaviour is 2.1.3's.