diff --git a/web/prisma/migrations/20260713120000_add_contributions_and_scan_worklist/migration.sql b/web/prisma/migrations/20260713120000_add_contributions_and_scan_worklist/migration.sql
new file mode 100644
index 0000000..a8fe5ad
--- /dev/null
+++ b/web/prisma/migrations/20260713120000_add_contributions_and_scan_worklist/migration.sql
@@ -0,0 +1,33 @@
+-- CreateTable
+CREATE TABLE "DiscoverySeedContribution" (
+    "id" TEXT NOT NULL,
+    "candidateMbid" TEXT NOT NULL,
+    "candidateName" TEXT NOT NULL,
+    "seedMbid" TEXT NOT NULL,
+    "score" DOUBLE PRECISION NOT NULL,
+    "sources" TEXT[],
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "DiscoverySeedContribution_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "ScanWorkItem" (
+    "id" TEXT NOT NULL,
+    "scanId" TEXT NOT NULL,
+    "artist" TEXT NOT NULL,
+    "album" TEXT NOT NULL,
+    "path" TEXT NOT NULL,
+    "done" BOOLEAN NOT NULL DEFAULT false,
+
+    CONSTRAINT "ScanWorkItem_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "DiscoverySeedContribution_candidateMbid_seedMbid_key" ON "DiscoverySeedContribution"("candidateMbid", "seedMbid");
+CREATE INDEX "DiscoverySeedContribution_candidateMbid_idx" ON "DiscoverySeedContribution"("candidateMbid");
+CREATE INDEX "DiscoverySeedContribution_seedMbid_idx" ON "DiscoverySeedContribution"("seedMbid");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "ScanWorkItem_scanId_path_key" ON "ScanWorkItem"("scanId", "path");
+CREATE INDEX "ScanWorkItem_scanId_done_artist_album_idx" ON "ScanWorkItem"("scanId", "done", "artist", "album");
diff --git a/web/prisma/schema.prisma b/web/prisma/schema.prisma
index 51768a5..77763e9 100644
--- a/web/prisma/schema.prisma
+++ b/web/prisma/schema.prisma
@@ -155,3 +155,29 @@ model DiscoverySuggestion {
   createdAt        DateTime         @default(now())
   updatedAt        DateTime         @updatedAt
 }
+
+model DiscoverySeedContribution {
+  id            String   @id @default(cuid())
+  candidateMbid String
+  candidateName String
+  seedMbid      String
+  score         Float
+  sources       String[]
+  updatedAt     DateTime @updatedAt
+
+  @@unique([candidateMbid, seedMbid])
+  @@index([candidateMbid])
+  @@index([seedMbid])
+}
+
+model ScanWorkItem {
+  id     String  @id @default(cuid())
+  scanId String
+  artist String
+  album  String
+  path   String
+  done   Boolean @default(false)
+
+  @@unique([scanId, path])
+  @@index([scanId, done, artist, album])
+}
diff --git a/worker/tests/conftest.py b/worker/tests/conftest.py
index f0d22a1..68e6b98 100644
--- a/worker/tests/conftest.py
+++ b/worker/tests/conftest.py
@@ -28,6 +28,8 @@ def conn():
         cur.execute('DELETE FROM "MonitoredRelease"')
         cur.execute('DELETE FROM "WatchedArtist"')
         cur.execute('DELETE FROM "DiscoverySuggestion"')
+        cur.execute('DELETE FROM "DiscoverySeedContribution"')
+        cur.execute('DELETE FROM "ScanWorkItem"')
         cur.execute('DELETE FROM "Config"')
     connection.commit()
     yield connection
@@ -43,6 +45,8 @@ def conn():
         cur.execute('DELETE FROM "MonitoredRelease"')
         cur.execute('DELETE FROM "WatchedArtist"')
         cur.execute('DELETE FROM "DiscoverySuggestion"')
+        cur.execute('DELETE FROM "DiscoverySeedContribution"')
+        cur.execute('DELETE FROM "ScanWorkItem"')
         cur.execute('DELETE FROM "Config"')
     connection.commit()
     connection.close()