diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5915633..fe34481 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -57,3 +57,40 @@ jobs:
           cache: npm
       - run: npm ci --include=dev
       - run: npm run typecheck
+
+  migrations:
+    name: migrations
+    runs-on: ubuntu-latest
+    needs: build
+    services:
+      postgres:
+        image: postgres:16-alpine
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: astroid
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd "pg_isready -U postgres -d astroid"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    env:
+      DATABASE_URL: postgresql://postgres:postgres@localhost:5432/astroid?schema=public
+      SHADOW_DATABASE_URL: postgresql://postgres:postgres@localhost:5432/astroid_shadow?schema=public
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+      - run: npm ci --include=dev
+      # The shadow database is an empty scratch PostgreSQL database that Prisma
+      # uses to rebuild the schema purely from the committed migrations.
+      - name: Create shadow database
+        run: |
+          sudo apt-get update && sudo apt-get install -y postgresql-client
+          PGPASSWORD=postgres createdb -h localhost -p 5432 -U postgres astroid_shadow
+      - name: Verify database migrations
+        run: npm run db:verify
diff --git a/package.json b/package.json
index 7859505..c1a5252 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,8 @@
     "prisma:migrate": "prisma migrate dev",
     "prisma:deploy": "prisma migrate deploy",
     "prisma:seed": "ts-node prisma/seed.ts",
-    "db:seed": "ts-node prisma/seed.ts"
+    "db:seed": "ts-node prisma/seed.ts",
+    "db:verify": "scripts/verify-migrations.sh"
   },
   "prisma": {
     "seed": "ts-node prisma/seed.ts"
diff --git a/prisma/migrations/20260830174000_sync_schema/migration.sql b/prisma/migrations/20260830174000_sync_schema/migration.sql
new file mode 100644
index 0000000..2e39e24
--- /dev/null
+++ b/prisma/migrations/20260830174000_sync_schema/migration.sql
@@ -0,0 +1,93 @@
+-- Sync schema to schema.prisma
+CREATE TYPE "WebhookDeliveryStatus" AS ENUM ('PENDING', 'RETRYING', 'FAILED', 'DELIVERED');
+
+-- AlterTable
+ALTER TABLE "api_keys" ADD COLUMN     "allowedIps" TEXT[] DEFAULT ARRAY[]::TEXT[];
+
+-- AlterTable
+ALTER TABLE "passkey_credentials" ADD COLUMN     "userAgent" TEXT;
+
+-- AlterTable
+ALTER TABLE "policies" ADD COLUMN     "originalLimit" DECIMAL(30,7),
+ADD COLUMN     "overrideLimit" DECIMAL(30,7),
+ADD COLUMN     "overrideUntil" TIMESTAMP(3);
+
+-- CreateTable
+CREATE TABLE "webhook_deliveries" (
+    "id" TEXT NOT NULL,
+    "webhookId" TEXT NOT NULL,
+    "organizationId" TEXT NOT NULL,
+    "eventName" TEXT NOT NULL,
+    "eventId" TEXT NOT NULL,
+    "payload" JSONB NOT NULL DEFAULT '{}',
+    "status" "WebhookDeliveryStatus" NOT NULL DEFAULT 'PENDING',
+    "attempts" INTEGER NOT NULL DEFAULT 0,
+    "lastError" TEXT,
+    "responseStatus" INTEGER,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "webhook_deliveries_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "passkey_challenges" (
+    "id" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "challenge" TEXT NOT NULL,
+    "expiresAt" TIMESTAMP(3) NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "passkey_challenges_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "outbox_events" (
+    "id" TEXT NOT NULL,
+    "eventType" TEXT NOT NULL,
+    "payload" JSONB NOT NULL,
+    "status" TEXT NOT NULL DEFAULT 'PENDING',
+    "retryCount" INTEGER NOT NULL DEFAULT 0,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+    "processedAt" TIMESTAMP(3),
+    "error" TEXT,
+
+    CONSTRAINT "outbox_events_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "webhook_deliveries_webhookId_idx" ON "webhook_deliveries"("webhookId");
+
+-- CreateIndex
+CREATE INDEX "webhook_deliveries_organizationId_idx" ON "webhook_deliveries"("organizationId");
+
+-- CreateIndex
+CREATE INDEX "webhook_deliveries_status_idx" ON "webhook_deliveries"("status");
+
+-- CreateIndex
+CREATE INDEX "webhook_deliveries_eventId_idx" ON "webhook_deliveries"("eventId");
+
+-- CreateIndex
+CREATE INDEX "webhook_deliveries_createdAt_idx" ON "webhook_deliveries"("createdAt");
+
+-- CreateIndex
+CREATE INDEX "passkey_challenges_userId_idx" ON "passkey_challenges"("userId");
+
+-- CreateIndex
+CREATE INDEX "passkey_challenges_expiresAt_idx" ON "passkey_challenges"("expiresAt");
+
+-- CreateIndex
+CREATE INDEX "outbox_events_status_createdAt_idx" ON "outbox_events"("status", "createdAt");
+
+-- CreateIndex
+CREATE INDEX "policies_overrideUntil_idx" ON "policies"("overrideUntil");
+
+-- AddForeignKey
+ALTER TABLE "webhook_deliveries" ADD CONSTRAINT "webhook_deliveries_webhookId_fkey" FOREIGN KEY ("webhookId") REFERENCES "webhooks"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "webhook_deliveries" ADD CONSTRAINT "webhook_deliveries_organizationId_fkey" FOREIGN KEY ("organizationId") REFERENCES "organizations"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "passkey_challenges" ADD CONSTRAINT "passkey_challenges_userId_fkey" FOREIGN KEY ("userId") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
\ No newline at end of file
diff --git a/prisma/migrations/20260830180000_add_audit_log_hash/migration.sql b/prisma/migrations/20260830180000_add_audit_log_hash/migration.sql
new file mode 100644
index 0000000..7b0a824
--- /dev/null
+++ b/prisma/migrations/20260830180000_add_audit_log_hash/migration.sql
@@ -0,0 +1,3 @@
+-- Add integrity hash columns to audit_logs
+ALTER TABLE "audit_logs" ADD COLUMN     "hash" TEXT,
+ADD COLUMN     "previousHash" TEXT;
\ No newline at end of file
diff --git a/scripts/verify-migrations.sh b/scripts/verify-migrations.sh
new file mode 100755
index 0000000..3ab4d48
--- /dev/null
+++ b/scripts/verify-migrations.sh
@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+#
+# Verifies the Prisma database migrations for the Astroid API.
+#
+# What it does, in order:
+#   1. Generates the Prisma client.
+#   2. Applies every pending migration to the target database (idempotent).
+#   3. Drift check: rebuilds the schema purely from the committed migrations
+#      (in an ephemeral shadow database) and fails if it does not match
+#      prisma/schema.prisma. This catches schema edits that were never
+#      captured in a migration.
+#
+# Env:
+#   DATABASE_URL          (required) Target PostgreSQL the migrations are
+#                         applied to — e.g. a fresh ephemeral CI database.
+#   SHADOW_DATABASE_URL   (optional but recommended) An empty scratch database
+#                         used for the drift check. When unset the drift check
+#                         is skipped and only apply + status are verified.
+#
+# Exit code 0 when migrations apply cleanly and stay in sync with the schema.
+set -euo pipefail
+
+: "${DATABASE_URL:?DATABASE_URL is required}"
+
+echo "==> Generating Prisma client"
+npx prisma generate
+
+echo "==> Applying migrations to ${DATABASE_URL}"
+npx prisma migrate deploy
+
+echo "==> Checking migration status"
+npx prisma migrate status
+
+if [[ -n "${SHADOW_DATABASE_URL:-}" ]]; then
+  echo "==> Drift check: rebuilding schema from migrations only"
+  echo "    shadow database: ${SHADOW_DATABASE_URL}"
+  # `--script` prints the SQL that would reconcile the migrations-built schema
+  # with schema.prisma: nothing when in sync, the full delta when out of sync.
+  # Strip blank lines and SQL comment markers so an "empty migration" counts as
+  # in sync.
+  drift="$(npx prisma migrate diff \
+    --from-migrations prisma/migrations \
+    --to-schema-datamodel prisma/schema.prisma \
+    --script \
+    --shadow-database-url "${SHADOW_DATABASE_URL}" \
+    | grep -Ev '^[[:space:]]*$|^--' || true)"
+
+  if [[ -n "${drift//[[:space:]]/}" ]]; then
+    echo "!! Schema drift detected — schema.prisma differs from the applied migrations." >&2
+    echo "$drift" >&2
+    exit 1
+  fi
+
+  echo "==> Migrations are in sync with the schema"
+else
+  echo "!! SHADOW_DATABASE_URL unset — skipping drift check" >&2
+fi
+
+echo "==> Migration verification passed"
\ No newline at end of file