diff --git a/apps/api/prisma/migrations/20260208000000_add_missing_tables/migration.sql b/apps/api/prisma/migrations/20260208000000_add_missing_tables/migration.sql
index 26f6d58..d8edb5f 100644
--- a/apps/api/prisma/migrations/20260208000000_add_missing_tables/migration.sql
+++ b/apps/api/prisma/migrations/20260208000000_add_missing_tables/migration.sql
@@ -1,3 +1,38 @@
+-- RecreateEnum: FormalityLevel was dropped in 20260129235248_add_link_storage_fields
+CREATE TYPE "FormalityLevel" AS ENUM ('VERY_CASUAL', 'CASUAL', 'NEUTRAL', 'FORMAL', 'VERY_FORMAL');
+
+-- RecreateTable: personalities was dropped in 20260129235248_add_link_storage_fields
+-- Recreated with current schema (display_name, system_prompt, temperature, etc.)
+CREATE TABLE "personalities" (
+    "id" UUID NOT NULL,
+    "workspace_id" UUID NOT NULL,
+    "name" TEXT NOT NULL,
+    "display_name" TEXT NOT NULL,
+    "description" TEXT,
+    "system_prompt" TEXT NOT NULL,
+    "temperature" DOUBLE PRECISION,
+    "max_tokens" INTEGER,
+    "llm_provider_instance_id" UUID,
+    "is_default" BOOLEAN NOT NULL DEFAULT false,
+    "is_enabled" BOOLEAN NOT NULL DEFAULT true,
+    "created_at" TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updated_at" TIMESTAMPTZ NOT NULL,
+
+    CONSTRAINT "personalities_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex: personalities
+CREATE UNIQUE INDEX "personalities_id_workspace_id_key" ON "personalities"("id", "workspace_id");
+CREATE UNIQUE INDEX "personalities_workspace_id_name_key" ON "personalities"("workspace_id", "name");
+CREATE INDEX "personalities_workspace_id_idx" ON "personalities"("workspace_id");
+CREATE INDEX "personalities_workspace_id_is_default_idx" ON "personalities"("workspace_id", "is_default");
+CREATE INDEX "personalities_workspace_id_is_enabled_idx" ON "personalities"("workspace_id", "is_enabled");
+CREATE INDEX "personalities_llm_provider_instance_id_idx" ON "personalities"("llm_provider_instance_id");
+
+-- AddForeignKey: personalities
+ALTER TABLE "personalities" ADD CONSTRAINT "personalities_workspace_id_fkey" FOREIGN KEY ("workspace_id") REFERENCES "workspaces"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+ALTER TABLE "personalities" ADD CONSTRAINT "personalities_llm_provider_instance_id_fkey" FOREIGN KEY ("llm_provider_instance_id") REFERENCES "llm_provider_instances"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
 -- CreateTable
 CREATE TABLE "cron_schedules" (
     "id" UUID NOT NULL,
diff --git a/apps/api/prisma/migrations/20260215100000_fix_schema_drift/migration.sql b/apps/api/prisma/migrations/20260215100000_fix_schema_drift/migration.sql
new file mode 100644
index 0000000..bf82b50
--- /dev/null
+++ b/apps/api/prisma/migrations/20260215100000_fix_schema_drift/migration.sql
@@ -0,0 +1,49 @@
+-- Fix schema drift: tables, indexes, and constraints defined in schema.prisma
+-- but never created (or dropped and never recreated) by prior migrations.
+
+-- ============================================
+-- CreateTable: instances (Federation module)
+-- Never created in any prior migration
+-- ============================================
+CREATE TABLE "instances" (
+    "id" UUID NOT NULL,
+    "instance_id" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "url" TEXT NOT NULL,
+    "public_key" TEXT NOT NULL,
+    "private_key" TEXT NOT NULL,
+    "capabilities" JSONB NOT NULL DEFAULT '{}',
+    "metadata" JSONB NOT NULL DEFAULT '{}',
+    "created_at" TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updated_at" TIMESTAMPTZ NOT NULL,
+
+    CONSTRAINT "instances_pkey" PRIMARY KEY ("id")
+);
+
+CREATE UNIQUE INDEX "instances_instance_id_key" ON "instances"("instance_id");
+
+-- ============================================
+-- Recreate dropped unique index on knowledge_links
+-- Created in 20260129220645_add_knowledge_module, dropped in
+-- 20260129235248_add_link_storage_fields, never recreated.
+-- ============================================
+CREATE UNIQUE INDEX "knowledge_links_source_id_target_id_key" ON "knowledge_links"("source_id", "target_id");
+
+-- ============================================
+-- Missing @@unique([id, workspaceId]) composite indexes
+-- Defined in schema.prisma but never created in migrations.
+-- (agent_tasks and runner_jobs already have these.)
+-- ============================================
+CREATE UNIQUE INDEX "tasks_id_workspace_id_key" ON "tasks"("id", "workspace_id");
+CREATE UNIQUE INDEX "events_id_workspace_id_key" ON "events"("id", "workspace_id");
+CREATE UNIQUE INDEX "projects_id_workspace_id_key" ON "projects"("id", "workspace_id");
+CREATE UNIQUE INDEX "activity_logs_id_workspace_id_key" ON "activity_logs"("id", "workspace_id");
+CREATE UNIQUE INDEX "domains_id_workspace_id_key" ON "domains"("id", "workspace_id");
+CREATE UNIQUE INDEX "ideas_id_workspace_id_key" ON "ideas"("id", "workspace_id");
+CREATE UNIQUE INDEX "user_layouts_id_workspace_id_key" ON "user_layouts"("id", "workspace_id");
+
+-- ============================================
+-- Missing index on agent_tasks.agent_type
+-- Defined as @@index([agentType]) in schema.prisma
+-- ============================================
+CREATE INDEX "agent_tasks_agent_type_idx" ON "agent_tasks"("agent_type");