diff --git a/packages/storage/src/db.ts b/packages/storage/src/db.ts
new file mode 100644
index 0000000..a6b2511
--- /dev/null
+++ b/packages/storage/src/db.ts
@@ -0,0 +1,42 @@
+/**
+ * IndexedDB schema v1 for GlowTrack
+ * Exports: openDb(name = 'glowtrack', version = 1)
+ */
+export async function openDb(name = 'glowtrack', version = 1): Promise<IDBDatabase> {
+  return await new Promise((resolve, reject) => {
+    const req = indexedDB.open(name, version);
+
+    req.onupgradeneeded = (ev) => {
+      const db = req.result;
+      // v1 stores
+      // settings: no keyPath; we will store a singleton record with a manual key
+      if (!db.objectStoreNames.contains('settings')) {
+        db.createObjectStore('settings');
+      }
+
+      // habits: keyPath 'id', index by_type
+      if (!db.objectStoreNames.contains('habits')) {
+        const s = db.createObjectStore('habits', { keyPath: 'id' });
+        s.createIndex('by_type', 'type', { unique: false });
+      }
+
+      // days: keyPath 'date'
+      if (!db.objectStoreNames.contains('days')) {
+        db.createObjectStore('days', { keyPath: 'date' });
+      }
+
+      // entries: keyPath 'id', indexes by_date, by_habit
+      if (!db.objectStoreNames.contains('entries')) {
+        const e = db.createObjectStore('entries', { keyPath: 'id' });
+        e.createIndex('by_date', 'date', { unique: false });
+        e.createIndex('by_habit', 'habitId', { unique: false });
+      }
+    };
+
+    req.onsuccess = () => resolve(req.result);
+    req.onerror = () => reject(req.error);
+  });
+}
+
+// Convenience types (re-exported from models in other tasks) to avoid hard dependency
+export type OpenDbFn = (name?: string, version?: number) => Promise<IDBDatabase>;
diff --git a/specs/001-glowtrack-a-mood/tasks.md b/specs/001-glowtrack-a-mood/tasks.md
index c776ac9..67206b7 100644
--- a/specs/001-glowtrack-a-mood/tasks.md
+++ b/specs/001-glowtrack-a-mood/tasks.md
@@ -116,7 +116,7 @@ From data-model.md → model creation tasks [P]
   - Export interfaces: WellbeingGrid, GridSettings, ExportSettings, DayTile, Mood, HabitEntry, HabitDefinition
   - Dependencies: T009-T015 (tests exist), T003
 
-- [ ] T017 [P] Implement IndexedDB schema v1
+- [X] T017 [P] Implement IndexedDB schema v1
   - Create /home/jawz/Development/Projects/GlowTrack/packages/storage/src/db.ts with openDb(name='glowtrack', version=1)
   - Create stores: settings (key 'singleton'), habits (keyPath 'id', index by_type), days (keyPath 'date'), entries (keyPath 'id', indexes by_date, by_habit)
   - Dependencies: T016, T010