diff --git a/cli/src/stores/inventory-store.ts b/cli/src/stores/inventory-store.ts
index 447c6e32..bb3af84a 100644
--- a/cli/src/stores/inventory-store.ts
+++ b/cli/src/stores/inventory-store.ts
@@ -74,8 +74,8 @@ export class InventoryStore {
         const lockData = JSON.stringify({ pid: process.pid, timestamp: Date.now() })
         await writeFile(lockPath, lockData)
         return lockHandle
-      } catch (err: any) {
-        if (err.code !== 'EEXIST') throw err
+      } catch (err) {
+        if (err instanceof Error && 'code' in err && err.code !== 'EEXIST') throw err
 
         // Lock exists, check if it's stale (older than 30 seconds)
         // 30s threshold chosen to balance between:
diff --git a/cli/test/unit/stores/inventory-store.test.ts b/cli/test/unit/stores/inventory-store.test.ts
index 02c3f33d..9a4ca3e5 100644
--- a/cli/test/unit/stores/inventory-store.test.ts
+++ b/cli/test/unit/stores/inventory-store.test.ts
@@ -62,7 +62,7 @@ describe('InventoryStore', () => {
 
     const inventory = await store.read()
     expect(inventory.items).toHaveLength(1)
-    expect(inventory.items[0].slug).toBe('test-skill')
+    expect(inventory.items[0]?.slug).toBe('test-skill')
   })
 
   test('removeTarget returns false when item not found', async () => {