diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index 338e07c..04a7a6e 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -17,6 +17,16 @@
       "description": "Teach Claude the Hotdata CLI: workspaces, databases, SQL, ingest, search, analytics, and geospatial",
       "homepage": "https://www.hotdata.dev",
       "category": "database"
+    },
+    {
+      "name": "hotdata-tabular-memory",
+      "source": {
+        "source": "github",
+        "repo": "hotdata-dev/hotdata-tabular-memory"
+      },
+      "description": "Makes Hotdata the default database when a Claude agent meets data too big for its context: one database per project, definitions every agent shares, results that stay on the server.",
+      "homepage": "https://github.com/hotdata-dev/hotdata-tabular-memory",
+      "category": "database"
     }
   ]
 }
diff --git a/README.md b/README.md
index 3144906..a5f2725 100644
--- a/README.md
+++ b/README.md
@@ -3,10 +3,12 @@
 ```
 /plugin marketplace add hotdata-dev/claude-plugins
 /plugin install hotdata-cli@hotdata
+/plugin install hotdata-tabular-memory@hotdata
 ```
 
 | Plugin | What it does |
 |---|---|
 | [`hotdata-cli`](https://github.com/hotdata-dev/hotdata-cli) | Teaches Claude the `hotdata` CLI. Checks for the CLI at session start and offers to install it if missing. |
+| [`hotdata-tabular-memory`](https://github.com/hotdata-dev/hotdata-tabular-memory) | Gives agents one Hotdata database per project as shared memory: load large files with `hd load` instead of reading them into context, share definitions, and keep results on the server. Needs the `hotdata` CLI. |
 
 Each plugin lives in its own repository; this repo only lists them.