Remove index card to avoid flash of empty cards-grid in host mode

packages/base/cards-grid.gts

@@ -161,22 +161,11 @@ class Isolated extends Component<typeof CardsGrid> {
       icon: AllCardsIcon,
       query: {
         filter: {
-          every: [
-            {
-              not: {
-                eq: {
-                  _cardType: 'Cards Grid',
-                },
-              },
+          not: {
+            eq: {
+              _cardType: 'Cards Grid',
             },
-            {
-              not: {
-                eq: {
-                  _cardType: 'Index',
-                },
-              },
-            },
-          ],
+          },
         },
       },
       filters: this.cardTypeFilters,
@@ -308,7 +297,6 @@ class Isolated extends Component<typeof CardsGrid> {
     let excludedCardTypeIds = [
       `${baseRealm.url}card-api/CardDef`,
       `${baseRealm.url}cards-grid/CardsGrid`,
-      `${baseRealm.url}index/IndexCard`,
     ];
 
     this.cardTypeFilters.splice(0, this.cardTypeFilters.length);

packages/base/index.gts

@@ -1,74 +1,2 @@
-import { CardsGrid } from './cards-grid';
-import {
-  CardDef,
-  Component,
-  contains,
-  field,
-  linksTo,
-  realmInfo,
-  StringField,
-} from './card-api';
-
-export class IndexCard extends CardDef {
-  static displayName = 'Index';
-  static prefersWideFormat = true;
-
-  @field realmName = contains(StringField, {
-    computeVia: function (this: IndexCard) {
-      return this[realmInfo]?.name;
-    },
-  });
-  @field cardTitle = contains(StringField, {
-    computeVia: function (this: IndexCard) {
-      return this.realmName;
-    },
-  });
-  @field cardsGrid = linksTo(CardsGrid);
-  @field interactHome = linksTo(CardDef);
-  @field hostHome = linksTo(CardDef);
-
-  static isolated = class Isolated extends Component<typeof IndexCard> {
-    private get prefersInteractHome() {
-      let submode = this.args.context?.submode;
-      return !!(
-        (submode === 'interact' || submode === 'code') &&
-        this.args.model.interactHome
-      );
-    }
-
-    private get prefersHostHome() {
-      let mode = this.args.context?.mode;
-      let submode = this.args.context?.submode;
-      return !!(
-        (mode === 'host' || submode === 'host') &&
-        this.args.model.hostHome
-      );
-    }
-
-    <template>
-      <div class='home'>
-        {{#if this.prefersInteractHome}}
-          <@fields.interactHome @format='isolated' />
-        {{else if this.prefersHostHome}}
-          <@fields.hostHome @format='isolated' />
-        {{else if @model.cardsGrid}}
-          <@fields.cardsGrid @format='isolated' />
-        {{else}}
-          <div data-test-empty-field class='empty-field'></div>
-        {{/if}}
-      </div>
-      <style scoped>
-        .home {
-          height: 100%;
-          width: 100%;
-        }
-        .home > :deep(.field-component-card.isolated-format) {
-          overflow: auto;
-        }
-        .home > :deep(.boxel-card-container) {
-          border-radius: 0;
-        }
-      </style>
-    </template>
-  };
-}
+// Backward compatibility: IndexCard is now CardsGrid
+export { CardsGrid as IndexCard } from './cards-grid';

packages/base/index.json

@@ -1,30 +1,10 @@
 {
   "data": {
+    "type": "card",
     "meta": {
       "adoptsFrom": {
-        "name": "IndexCard",
-        "module": "./index"
-      }
-    },
-    "type": "card",
-    "attributes": {
-      "cardInfo": {
-        "notes": null,
-        "name": null,
-        "summary": null,
-        "cardThumbnailURL": null
-      }
-    },
-    "relationships": {
-      "cardsGrid": {
-        "links": {
-          "self": "./cards-grid"
-        }
-      },
-      "cardInfo.theme": {
-        "links": {
-          "self": null
-        }
+        "module": "./cards-grid",
+        "name": "CardsGrid"
       }
     }
   }

packages/experiments-realm/index.json

@@ -1,30 +1,10 @@
 {
   "data": {
+    "type": "card",
     "meta": {
       "adoptsFrom": {
-        "name": "IndexCard",
-        "module": "https://cardstack.com/base/index"
-      }
-    },
-    "type": "card",
-    "attributes": {
-      "cardInfo": {
-        "notes": null,
-        "name": null,
-        "summary": null,
-        "cardThumbnailURL": null
-      }
-    },
-    "relationships": {
-      "cardsGrid": {
-        "links": {
-          "self": "./cards-grid"
-        }
-      },
-      "cardInfo.theme": {
-        "links": {
-          "self": null
-        }
+        "module": "https://cardstack.com/base/cards-grid",
+        "name": "CardsGrid"
       }
     }
   }