diff --git a/app/components/Message/User.vue b/app/components/Message/User.vue
index 34d8688..47b0165 100644
--- a/app/components/Message/User.vue
+++ b/app/components/Message/User.vue
@@ -8,7 +8,7 @@ defineProps<{
 
 <template>
     <div class="flex flex-col gap-2 max-w-full bg-[var(--bg-container)] py-2 px-3 rounded-xl">
-        <MarkdownRenderer :finished="true" :content="message.content!" :id="message.id" />
+        <MarkdownRenderer v-if="message.content" :finished="true" :content="message.content" :id="message.id" />
         <div v-if="message.attachments && message.attachments.length > 0" class="flex flex-col gap-2">
             <div v-for="attachment in message.attachments" :key="attachment.id"
                 class="flex flex-wrap items-center gap-2">
diff --git a/app/components/Message/index.vue b/app/components/Message/index.vue
index adce93b..9cb1db8 100644
--- a/app/components/Message/index.vue
+++ b/app/components/Message/index.vue
@@ -16,66 +16,56 @@ const emit = defineEmits<{
 
 let reqAbortController: AbortController | null = null;
 
-watch(() => message.focusedIndex, async (newValue) => {
-    if (newValue !== undefined) {
-        if (reqAbortController) {
-            reqAbortController.abort();
-            reqAbortController = null;
-        }
-
-        reqAbortController = new AbortController();
-
-        await $fetch(`/api/messages/${message.id}`, {
-            method: 'PATCH',
-            body: {
-                focusedIndex: newValue
-            },
-            signal: reqAbortController.signal,
-        });
+watch(() => message.activeChildId, async (newValue) => {
+    if (reqAbortController) {
+        reqAbortController.abort();
+        reqAbortController = null;
     }
+
+    reqAbortController = new AbortController();
+
+    await $fetch(`/api/messages/${message.id}`, {
+        method: 'PATCH',
+        body: {
+            activeChildId: newValue
+        },
+        signal: reqAbortController.signal,
+    });
 });
 
 watch(() => message.children.length, (newCount, oldCount) => {
     if (newCount === oldCount) return;
 
-    // if we are deleting children, only move the focus index if its no longer valid
-    // e.g. if we we have 4 children, and are focused on the 2nd, if we delete it, 
-    // we want to keep the focus on the 2nd index. It just makes me feel better
+    if (newCount === 0) {
+        emit('patch', { activeChildId: null });
+        return;
+    }
+
     if (oldCount > newCount) {
-        if (message.deleted === true && (message.focusedIndex || 0) === newCount) {
-            console.log('focusedIndex Math.max(0, newCount - 1)');
-            message.focusedIndex = Math.max(0, newCount - 1);
-            return;
+        const activeChild = message.children.find(c => c.id === message.activeChildId);
+        if (!activeChild) {
+            emit('patch', { activeChildId: message.children[newCount - 1]?.id ?? null });
         }
-
-        if ((message.focusedIndex || 0) > newCount) {
-            console.log('focusedIndex newCount');
-            message.focusedIndex = newCount;
-        }
-
         return;
     }
 
-    if (message.deleted === true) {
-        console.log('focusedIndex newCount - 1');
-        message.focusedIndex = newCount - 1;
-        return;
+    const newChild = message.children[newCount - 1];
+    if (newChild) {
+        emit('patch', { activeChildId: newChild.id });
     }
-
-    console.log('focusedIndex newCount');
-    message.focusedIndex = newCount;
 });
 
 const activeMessage = computed(() => {
-    if (message.children.length === 0 || ((message.focusedIndex || 0) === 0 && !message.deleted)) {
-        return message;
+    if (message.activeChildId && message.children.length > 0) {
+        const child = message.children.find(c => c.id === message.activeChildId);
+        if (child) return child;
     }
 
-    if (message.deleted === true) {
-        return message.children[Math.min((message.focusedIndex || 0), message.children.length - 1)];
+    if (message.deleted === true && message.children.length > 0) {
+        return message.children[0];
     }
 
-    return message.children[message.focusedIndex! - 1];
+    return message;
 });
 
 const copied = ref(false);
@@ -137,10 +127,6 @@ const handleEdit = async () => {
 };
 
 const deleteMessage = () => {
-    // if (focusedIndex.value !== 0 && focusedIndex.value === message.children.length) {
-    //     focusedIndex.value = Math.max(0, focusedIndex.value - 1);
-    // }
-
     emit('delete');
 };
 
@@ -151,6 +137,27 @@ const messageCount = computed(() => {
 
     return message.children.length + 1;
 });
+
+const currentChildIndex = computed(() => {
+    if (!message.activeChildId) return 0;
+    const idx = message.children.findIndex(c => c.id === message.activeChildId);
+    return idx >= 0 ? idx + 1 : 0;
+});
+
+const navigateChild = (direction: -1 | 1) => {
+    const allItems = message.deleted === true
+        ? message.children
+        : [null, ...message.children];
+
+    const currentIdx = allItems.findIndex(item =>
+        item === null ? !message.activeChildId : item.id === message.activeChildId
+    );
+
+    const newIdx = Math.max(0, Math.min(allItems.length - 1, currentIdx + direction));
+    const newItem = allItems[newIdx];
+
+    emit('patch', { activeChildId: newItem?.id ?? null });
+};
 </script>
 
 <template>
@@ -162,21 +169,21 @@ const messageCount = computed(() => {
         <div class="flex justify-between items-center">
             <div>
                 <div v-if="messageCount > 1" class="flex gap-1">
-                    <Tooltip :inert="message.focusedIndex === 0" :hotkey="['alt', '[']">
-                        <button @click="emit('patch', { focusedIndex: message.focusedIndex! - 1 })"
+                    <Tooltip :inert="currentChildIndex === 0" :hotkey="['alt', '[']">
+                        <button @click="navigateChild(-1)"
                             class="@hover:bg-[var(--color-hover)] rounded transition duration-150 ease-[cubic-bezier(0.5,_1,_0.89,_1)]">
                             <span class="i-mynaui-chevron-left w-4 h-4 text-[var(--text-secondary)]"
-                                :class="message.focusedIndex === 0 ? 'opacity-0' : ''"></span>
+                                :class="currentChildIndex === 0 ? 'opacity-0' : ''"></span>
                         </button>
                     </Tooltip>
                     <span class="text-xs text-[var(--text-secondary)]">
-                        {{ (message.focusedIndex || 0) + 1 }} / {{ messageCount }}
+                        {{ currentChildIndex + 1 }} / {{ messageCount }}
                     </span>
-                    <Tooltip :inert="(message.focusedIndex || 0) + 1 === messageCount" :hotkey="['alt', ']']">
-                        <button @click="emit('patch', { focusedIndex: (message.focusedIndex || 0) + 1 })"
+                    <Tooltip :inert="currentChildIndex + 1 === messageCount" :hotkey="['alt', ']']">
+                        <button @click="navigateChild(1)"
                             class="@hover:bg-[var(--color-hover)] rounded transition duration-150 ease-[cubic-bezier(0.5,_1,_0.89,_1)]">
                             <span class="i-mynaui-chevron-right w-4 h-4 text-[var(--text-secondary)]"
-                                :class="(message.focusedIndex || 0) + 1 === messageCount ? 'opacity-0' : ''"></span>
+                                :class="currentChildIndex + 1 === messageCount ? 'opacity-0' : ''"></span>
                         </button>
                     </Tooltip>
                 </div>
diff --git a/app/composables/useChat.ts b/app/composables/useChat.ts
index 91028de..5c89c04 100644
--- a/app/composables/useChat.ts
+++ b/app/composables/useChat.ts
@@ -40,7 +40,10 @@ export const useChat = async (topicId: MaybeRef<string>, connect = true) => {
 
     let sse: EventSource | undefined;
 
-    const textDeltaBuffer: Map<string, Map<string, string>> = new Map();
+    const textDeltaBuffer: Map<string, Map<string, {
+        content: string;
+        lastUpdatedAt: string;
+    }>> = new Map();
     let flushTimeout: ReturnType<typeof setTimeout> | undefined;
     let flushCbs: Set<() => void> = new Set();
 
@@ -54,7 +57,8 @@ export const useChat = async (topicId: MaybeRef<string>, connect = true) => {
             for (const [partId, content] of parts) {
                 const part = msg.parts?.find(p => p.id === partId);
                 if (part) {
-                    part.content += content;
+                    part.content += content.content;
+                    part.lastUpdatedAt = new Date(content.lastUpdatedAt);
                 }
             }
         }
@@ -132,8 +136,8 @@ export const useChat = async (topicId: MaybeRef<string>, connect = true) => {
                     textDeltaBuffer.set(payload.messageId, new Map());
                 }
                 const messageBuffer = textDeltaBuffer.get(payload.messageId)!;
-                const existing = messageBuffer.get(payload.partId) || '';
-                messageBuffer.set(payload.partId, existing + payload.content);
+                const existing = messageBuffer.get(payload.partId)?.content || '';
+                messageBuffer.set(payload.partId, { content: existing + payload.content, lastUpdatedAt: payload.lastUpdatedAt });
 
                 scheduleFlush();
                 break;
@@ -145,6 +149,7 @@ export const useChat = async (topicId: MaybeRef<string>, connect = true) => {
                 if (part) {
                     nextFlush(() => {
                         part.content = payload.content;
+                        part.lastUpdatedAt = payload.lastUpdatedAt;
                         part.finished = true;
                     });
                 }
@@ -328,7 +333,7 @@ export const useChat = async (topicId: MaybeRef<string>, connect = true) => {
                             generation: null,
                             parentMessageId: null,
                             generationId: null,
-                            focusedIndex: null,
+                            activeChildId: null,
                             deleted: null,
                             createdAt: new Date(),
                             updatedAt: new Date(),
@@ -457,11 +462,46 @@ export const useChat = async (topicId: MaybeRef<string>, connect = true) => {
         );
     }
 
+    const deleteMessagesFocusedDescendant = async (messageId: string): Promise<Result<void, Error>> => {
+        if (!data.value) return Err(new Error('No data'));
+
+        const msg = data.value.messages.find(m => m.id === messageId);
+        if (!msg) return Err(new Error('Message not found'));
+
+        const previousMessages = data.value!.messages;
+
+        const res = await $fetch(`/api/messages/${messageId}`, {
+            method: 'DELETE',
+            onRequest() {
+                if (!msg.activeChildId && (msg.parentMessageId === null || msg.parentMessageId === undefined)) {
+                    msg.deleted = true;
+                    return;
+                }
+
+                const parent = data.value!.messages.find(m => m.id === msg.parentMessageId);
+                data.value!.messages = data.value!.messages.filter(m => m.id !== msg.id);
+                if (parent?.deleted) {
+                    data.value!.messages = data.value!.messages.filter(m => m.id !== parent.id);
+                }
+            },
+            onResponseError() {
+                data.value!.messages = previousMessages;
+            },
+        });
+
+        if (!res.ok) {
+            return Err(new Error('Failed to delete message'));
+        }
+
+        return Ok(undefined);
+    }
+
     return {
         topic,
         sendMessage,
         startGeneration,
         regenerateMessage,
-        patchMessageLocally
+        patchMessageLocally,
+        deleteMessagesFocusedDescendant
     };
 }
diff --git a/app/pages/agent/[id]/index.vue b/app/pages/agent/[id]/index.vue
index 3a5624c..d0455e3 100644
--- a/app/pages/agent/[id]/index.vue
+++ b/app/pages/agent/[id]/index.vue
@@ -30,7 +30,6 @@ const handleSubmit = async (message: BaseMessage, model: ModelWithProvider | nul
     }
 
     console.log("handleSubmit", message);
-    if (!message.content) return;
 
     pendingMessage.value = {
         id: '',
@@ -43,7 +42,7 @@ const handleSubmit = async (message: BaseMessage, model: ModelWithProvider | nul
         parentMessageId: null,
         children: [],
         generationId: null,
-        focusedIndex: null,
+        activeChildId: null,
         attachments: [],
         deleted: false,
         createdAt: new Date(),
diff --git a/app/pages/agent/[id]/topic/[topicId].vue b/app/pages/agent/[id]/topic/[topicId].vue
index 582c690..26f1556 100644
--- a/app/pages/agent/[id]/topic/[topicId].vue
+++ b/app/pages/agent/[id]/topic/[topicId].vue
@@ -16,7 +16,7 @@ const { addShortcut } = useKeyboardShortcuts();
 const agent = getAgent(route.params.id as string);
 
 const topicId = computed(() => route.params.topicId as string);
-const { topic, sendMessage, startGeneration, regenerateMessage, patchMessageLocally } = await useChat(topicId);
+const { topic, sendMessage, startGeneration, regenerateMessage, patchMessageLocally, deleteMessagesFocusedDescendant } = await useChat(topicId);
 
 watch(() => topic.value?.name, (newTopicName) => {
     if (newTopicName !== undefined) {
@@ -61,12 +61,8 @@ const handleRegenerate = async (message: Message) => {
     }
 
     let messageId: string;
-    if (
-        (message.focusedIndex !== undefined && message.focusedIndex !== null)
-        && message.focusedIndex > 0
-        && message.children.length > 0
-    ) {
-        messageId = message.children[message.focusedIndex - 1]!.id;
+    if (message.activeChildId && message.children.length > 0) {
+        messageId = message.activeChildId;
     } else {
         messageId = message.id;
     }
@@ -98,9 +94,18 @@ const flatMessages = computed(() => {
 });
 
 const handleDelete = async (rootMessage: Message) => {
-    await $fetch(`/api/messages/${rootMessage.id}`, {
-        method: 'DELETE',
-    });
+    let messageId: string;
+    if (rootMessage.activeChildId && rootMessage.children.length > 0) {
+        messageId = rootMessage.activeChildId;
+    } else {
+        messageId = rootMessage.id;
+    }
+
+    const result = await deleteMessagesFocusedDescendant(messageId);
+    if (!result.ok) {
+        console.error('Failed to delete message:', result.error);
+        return;
+    }
 
     if (flatMessages.value.length === 0) {
         await navigateTo(`/agent/${route.params.id}`);
@@ -108,6 +113,20 @@ const handleDelete = async (rootMessage: Message) => {
     }
 }
 
+const handleResize = () => {
+    const el = chatPaneWrapper.value;
+    if (!el) return;
+
+    const atBottom = (el.scrollHeight - el.scrollTop - el.clientHeight) <= 80;
+    if (!atBottom) return;
+
+    nextTick().then(() => {
+        requestAnimationFrame(() => {
+            scrollToBottom('instant');
+        });
+    });
+}
+
 const activeGeneration = computed(() => {
     if (topic.value === null) return null;
     const generations = flatMessages.value.flatMap(message => message.generation);
@@ -155,8 +174,11 @@ addShortcut(['alt', '['], async (event) => {
 
     const lastMessage = topic.value?.messages?.at(-1);
     if (lastMessage && lastMessage.children.length > 0) {
-        const newIndex = Math.max(0, (lastMessage.focusedIndex || 0) - 1);
-        patchMessageLocally(lastMessage.id, { focusedIndex: newIndex });
+        const currentIdx = lastMessage.children.findIndex(c => c?.id === lastMessage.activeChildId);
+        const prevIdx = Math.max(0, currentIdx);
+        if (currentIdx > 0) {
+            patchMessageLocally(lastMessage.id, { activeChildId: lastMessage.children[prevIdx - 1]!.id });
+        }
     }
 })
 
@@ -165,10 +187,20 @@ addShortcut(['alt', ']'], async (event) => {
     event.stopPropagation();
 
     const lastMessage = topic.value?.messages?.at(-1);
-    const messageCount = lastMessage ? (lastMessage.deleted ? lastMessage.children.length : lastMessage.children.length + 1) : 0;
     if (lastMessage && lastMessage.children.length > 0) {
-        const newIndex = Math.min(messageCount - 1, (lastMessage.focusedIndex || 0) + 1);
-        patchMessageLocally(lastMessage.id, { focusedIndex: newIndex });
+        const currentIdx = lastMessage.children.findIndex(c => c?.id === lastMessage.activeChildId);
+        const maxIdx = lastMessage.deleted ? lastMessage.children.length - 1 : lastMessage.children.length;
+        const nextIdx = Math.min(maxIdx, currentIdx + 1);
+
+        if (lastMessage.deleted) {
+            patchMessageLocally(lastMessage.id, { activeChildId: lastMessage.children[nextIdx]?.id ?? null });
+        } else {
+            if (nextIdx === 0) {
+                patchMessageLocally(lastMessage.id, { activeChildId: null });
+            } else {
+                patchMessageLocally(lastMessage.id, { activeChildId: lastMessage.children[nextIdx - 1]?.id ?? null });
+            }
+        }
     }
 })
 
@@ -178,20 +210,32 @@ addShortcut(['ctrl', 'alt', 'arrowleft'], async (event) => {
         event.preventDefault();
         event.stopPropagation();
 
-        const newIndex = Math.max(0, (lastMessage.focusedIndex || 0) - 1);
-        patchMessageLocally(lastMessage.id, { focusedIndex: newIndex });
+        const currentIdx = lastMessage.children.findIndex(c => c?.id === lastMessage.activeChildId);
+        if (currentIdx > 0) {
+            patchMessageLocally(lastMessage.id, { activeChildId: lastMessage.children[currentIdx - 1]!.id });
+        }
     }
 })
 
 addShortcut(['ctrl', 'alt', 'arrowright'], async (event) => {
     const lastMessage = topic.value?.messages?.at(-1);
-    const messageCount = lastMessage ? (lastMessage.deleted ? lastMessage.children.length : lastMessage.children.length + 1) : 0;
     if (lastMessage && lastMessage.children.length > 0) {
         event.preventDefault();
         event.stopPropagation();
 
-        const newIndex = Math.min(messageCount - 1, (lastMessage.focusedIndex || 0) + 1);
-        patchMessageLocally(lastMessage.id, { focusedIndex: newIndex });
+        const currentIdx = lastMessage.children.findIndex(c => c?.id === lastMessage.activeChildId);
+        const maxIdx = lastMessage.deleted ? lastMessage.children.length - 1 : lastMessage.children.length;
+        const nextIdx = Math.min(maxIdx, currentIdx + 1);
+
+        if (lastMessage.deleted) {
+            patchMessageLocally(lastMessage.id, { activeChildId: lastMessage.children[nextIdx]?.id ?? null });
+        } else {
+            if (nextIdx === 0) {
+                patchMessageLocally(lastMessage.id, { activeChildId: null });
+            } else {
+                patchMessageLocally(lastMessage.id, { activeChildId: lastMessage.children[nextIdx - 1]?.id ?? null });
+            }
+        }
     }
 })
 
@@ -249,7 +293,8 @@ console.log("full page render took", Date.now() - rootStart);
                 <div class="sticky bottom-0 z-10 bg-[var(--bg-surface)] pb-4 w-full rounded-t-2xl">
                     <ChatInput v-model="inputValue" class="[view-transition-name:chat-prompt] duration-150 ease-in-out"
                         :loading="activeGeneration !== null" :agent="agent"
-                        :providers="providers?.filter(p => p.enabled)" @submit="submitMessage" @cancel="handleCancel" />
+                        :providers="providers?.filter(p => p.enabled)" @submit="submitMessage" @cancel="handleCancel"
+                        @resize="handleResize" />
                 </div>
             </div>
         </div>
diff --git a/drizzle/migrations/20260409052841_powerful_alex_power/migration.sql b/drizzle/migrations/20260409052841_powerful_alex_power/migration.sql
deleted file mode 100644
index e69de29..0000000
diff --git a/drizzle/migrations/20260409052924_mute_patriot/migration.sql b/drizzle/migrations/20260409052924_mute_patriot/migration.sql
deleted file mode 100644
index 8903cfd..0000000
--- a/drizzle/migrations/20260409052924_mute_patriot/migration.sql
+++ /dev/null
@@ -1,16 +0,0 @@
-ALTER TABLE "agents" ADD COLUMN "config" jsonb DEFAULT '{}';--> statement-breakpoint
-ALTER TABLE "accounts" DROP CONSTRAINT "accounts_user_id_users_id_fkey", ADD CONSTRAINT "accounts_user_id_users_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "agents" DROP CONSTRAINT "agents_default_model_id_models_id_fkey", ADD CONSTRAINT "agents_default_model_id_models_id_fkey" FOREIGN KEY ("default_model_id") REFERENCES "models"("id") ON DELETE SET NULL;--> statement-breakpoint
-ALTER TABLE "attachments" DROP CONSTRAINT "attachments_file_id_files_id_fkey", ADD CONSTRAINT "attachments_file_id_files_id_fkey" FOREIGN KEY ("file_id") REFERENCES "files"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "attachments" DROP CONSTRAINT "attachments_message_id_messages_id_fkey", ADD CONSTRAINT "attachments_message_id_messages_id_fkey" FOREIGN KEY ("message_id") REFERENCES "messages"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "attachments" DROP CONSTRAINT "attachments_topic_id_topics_id_fkey", ADD CONSTRAINT "attachments_topic_id_topics_id_fkey" FOREIGN KEY ("topic_id") REFERENCES "topics"("id");--> statement-breakpoint
-ALTER TABLE "embeddings" DROP CONSTRAINT "embeddings_file_id_files_id_fkey", ADD CONSTRAINT "embeddings_file_id_files_id_fkey" FOREIGN KEY ("file_id") REFERENCES "files"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "generations" DROP CONSTRAINT "generations_topic_id_topics_id_fkey", ADD CONSTRAINT "generations_topic_id_topics_id_fkey" FOREIGN KEY ("topic_id") REFERENCES "topics"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "message_parts" DROP CONSTRAINT "message_parts_message_id_messages_id_fkey", ADD CONSTRAINT "message_parts_message_id_messages_id_fkey" FOREIGN KEY ("message_id") REFERENCES "messages"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "message_parts" DROP CONSTRAINT "message_parts_tool_call_id_tool_calls_id_fkey", ADD CONSTRAINT "message_parts_tool_call_id_tool_calls_id_fkey" FOREIGN KEY ("tool_call_id") REFERENCES "tool_calls"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "message_parts" DROP CONSTRAINT "message_parts_topic_id_topics_id_fkey", ADD CONSTRAINT "message_parts_topic_id_topics_id_fkey" FOREIGN KEY ("topic_id") REFERENCES "topics"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "messages" DROP CONSTRAINT "messages_generation_id_generations_id_fkey", ADD CONSTRAINT "messages_generation_id_generations_id_fkey" FOREIGN KEY ("generation_id") REFERENCES "generations"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "messages" DROP CONSTRAINT "messages_topic_id_topics_id_fkey", ADD CONSTRAINT "messages_topic_id_topics_id_fkey" FOREIGN KEY ("topic_id") REFERENCES "topics"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "models" DROP CONSTRAINT "models_provider_id_providers_id_fkey", ADD CONSTRAINT "models_provider_id_providers_id_fkey" FOREIGN KEY ("provider_id") REFERENCES "providers"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "sessions" DROP CONSTRAINT "sessions_user_id_users_id_fkey", ADD CONSTRAINT "sessions_user_id_users_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE;--> statement-breakpoint
-ALTER TABLE "topics" DROP CONSTRAINT "topics_agent_id_agents_id_fkey", ADD CONSTRAINT "topics_agent_id_agents_id_fkey" FOREIGN KEY ("agent_id") REFERENCES "agents"("id") ON DELETE CASCADE;
\ No newline at end of file
diff --git a/drizzle/migrations/20260505033406_powerful_arclight/migration.sql b/drizzle/migrations/20260505033406_powerful_arclight/migration.sql
new file mode 100644
index 0000000..db4b0b9
--- /dev/null
+++ b/drizzle/migrations/20260505033406_powerful_arclight/migration.sql
@@ -0,0 +1,218 @@
+CREATE TYPE "part_type" AS ENUM('reasoning', 'text', 'tool-call', 'file');--> statement-breakpoint
+CREATE TYPE "role" AS ENUM('user', 'assistant');--> statement-breakpoint
+CREATE TYPE "status" AS ENUM('pending', 'completed', 'failed', 'cancelled');--> statement-breakpoint
+CREATE TABLE "accounts" (
+	"id" text PRIMARY KEY,
+	"account_id" text NOT NULL,
+	"provider_id" text NOT NULL,
+	"user_id" text NOT NULL,
+	"access_token" text,
+	"refresh_token" text,
+	"id_token" text,
+	"access_token_expires_at" timestamp,
+	"refresh_token_expires_at" timestamp,
+	"scope" text,
+	"password" text,
+	"created_at" timestamp DEFAULT now() NOT NULL,
+	"updated_at" timestamp NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "agents" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"name" text NOT NULL,
+	"system_prompt" text,
+	"image_url" text,
+	"default_model_id" text,
+	"config" jsonb DEFAULT '{}',
+	"created_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "attachments" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"topic_id" text NOT NULL,
+	"message_id" text NOT NULL,
+	"file_id" text NOT NULL,
+	"created_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "embeddings" (
+	"id" text PRIMARY KEY,
+	"file_id" text NOT NULL,
+	"content" text NOT NULL,
+	"embedding" vector(1536),
+	"metadata" jsonb
+);
+--> statement-breakpoint
+CREATE TABLE "files" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"name" text NOT NULL,
+	"mime_type" text NOT NULL,
+	"url" text NOT NULL,
+	"created_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "generations" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"topic_id" text NOT NULL,
+	"model_id" text NOT NULL,
+	"status" "status" NOT NULL,
+	"tokens" jsonb,
+	"error" text
+);
+--> statement-breakpoint
+CREATE TABLE "message_parts" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"topic_id" text NOT NULL,
+	"message_id" text NOT NULL,
+	"tool_call_id" text,
+	"type" "part_type" NOT NULL,
+	"content" text,
+	"provider_options" jsonb,
+	"finished" boolean DEFAULT false NOT NULL,
+	"created_at" timestamp DEFAULT now() NOT NULL,
+	"last_updated_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "messages" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"topic_id" text NOT NULL,
+	"parent_message_id" text,
+	"generation_id" text,
+	"role" "role" NOT NULL,
+	"content" text,
+	"focused_index" integer,
+	"deleted" boolean DEFAULT false,
+	"updated_at" timestamp DEFAULT now() NOT NULL,
+	"created_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "models" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"external_id" text NOT NULL,
+	"provider_id" text NOT NULL,
+	"name" text NOT NULL,
+	"cost" jsonb DEFAULT '{}' NOT NULL,
+	"input_modalities" text[] DEFAULT '{}'::text[] NOT NULL,
+	"output_modalities" text[] DEFAULT '{}'::text[] NOT NULL,
+	"capabilities" text[] DEFAULT '{}'::text[] NOT NULL,
+	"context_window" integer,
+	"supported_parameters" text[],
+	"is_custom" boolean DEFAULT false NOT NULL,
+	"enabled" boolean DEFAULT true NOT NULL,
+	"released_at" timestamp
+);
+--> statement-breakpoint
+CREATE TABLE "providers" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"type" text NOT NULL,
+	"name" text NOT NULL,
+	"enabled" boolean DEFAULT true NOT NULL,
+	"config" jsonb DEFAULT '{}' NOT NULL,
+	"created_at" timestamp DEFAULT now() NOT NULL,
+	"updated_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "sessions" (
+	"id" text PRIMARY KEY,
+	"expires_at" timestamp NOT NULL,
+	"token" text NOT NULL UNIQUE,
+	"created_at" timestamp DEFAULT now() NOT NULL,
+	"updated_at" timestamp NOT NULL,
+	"ip_address" text,
+	"user_agent" text,
+	"user_id" text NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "settings" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"system_assistants" jsonb DEFAULT '{}' NOT NULL,
+	"appearance" jsonb
+);
+--> statement-breakpoint
+CREATE TABLE "tool_calls" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"tool_name" text NOT NULL,
+	"status" "status" DEFAULT 'pending'::"status" NOT NULL,
+	"input" jsonb,
+	"output" jsonb,
+	"error" jsonb,
+	"created_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "topics" (
+	"id" text PRIMARY KEY,
+	"user_id" text NOT NULL,
+	"agent_id" text NOT NULL,
+	"name" text NOT NULL,
+	"renaming" boolean DEFAULT false,
+	"created_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "users" (
+	"id" text PRIMARY KEY,
+	"name" text NOT NULL,
+	"email" text NOT NULL UNIQUE,
+	"email_verified" boolean DEFAULT false NOT NULL,
+	"image" text,
+	"created_at" timestamp DEFAULT now() NOT NULL,
+	"updated_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "verifications" (
+	"id" text PRIMARY KEY,
+	"identifier" text NOT NULL,
+	"value" text NOT NULL,
+	"expires_at" timestamp NOT NULL,
+	"created_at" timestamp DEFAULT now() NOT NULL,
+	"updated_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE INDEX "accounts_userId_idx" ON "accounts" ("user_id");--> statement-breakpoint
+CREATE INDEX "agents_userId_idx" ON "agents" ("user_id");--> statement-breakpoint
+CREATE INDEX "attachments_topicId_idx" ON "attachments" ("topic_id");--> statement-breakpoint
+CREATE INDEX "attachments_messageId_idx" ON "attachments" ("message_id");--> statement-breakpoint
+CREATE INDEX "attachments_userId_idx" ON "attachments" ("user_id");--> statement-breakpoint
+CREATE INDEX "embeddings_fileId_idx" ON "embeddings" ("file_id");--> statement-breakpoint
+CREATE INDEX "files_userId_idx" ON "files" ("user_id");--> statement-breakpoint
+CREATE INDEX "generations_topicId_idx" ON "generations" ("topic_id");--> statement-breakpoint
+CREATE INDEX "generations_userId_idx" ON "generations" ("user_id");--> statement-breakpoint
+CREATE INDEX "message_parts_topicId_idx" ON "message_parts" ("topic_id");--> statement-breakpoint
+CREATE INDEX "message_parts_messageId_idx" ON "message_parts" ("message_id");--> statement-breakpoint
+CREATE INDEX "message_parts_userId_idx" ON "message_parts" ("user_id");--> statement-breakpoint
+CREATE INDEX "messages_topicId_idx" ON "messages" ("topic_id");--> statement-breakpoint
+CREATE INDEX "messages_parentMessageId_idx" ON "messages" ("parent_message_id");--> statement-breakpoint
+CREATE INDEX "messages_userId_idx" ON "messages" ("user_id");--> statement-breakpoint
+CREATE INDEX "models_providerId_idx" ON "models" ("provider_id");--> statement-breakpoint
+CREATE INDEX "models_userId_idx" ON "models" ("user_id");--> statement-breakpoint
+CREATE INDEX "providers_userId_idx" ON "providers" ("user_id");--> statement-breakpoint
+CREATE INDEX "sessions_userId_idx" ON "sessions" ("user_id");--> statement-breakpoint
+CREATE INDEX "settings_userId_idx" ON "settings" ("user_id");--> statement-breakpoint
+CREATE INDEX "tool_calls_userId_idx" ON "tool_calls" ("user_id");--> statement-breakpoint
+CREATE INDEX "topics_agentId_idx" ON "topics" ("agent_id");--> statement-breakpoint
+CREATE INDEX "topics_userId_idx" ON "topics" ("user_id");--> statement-breakpoint
+CREATE INDEX "verifications_identifier_idx" ON "verifications" ("identifier");--> statement-breakpoint
+ALTER TABLE "accounts" ADD CONSTRAINT "accounts_user_id_users_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "agents" ADD CONSTRAINT "agents_default_model_id_models_id_fkey" FOREIGN KEY ("default_model_id") REFERENCES "models"("id") ON DELETE SET NULL;--> statement-breakpoint
+ALTER TABLE "attachments" ADD CONSTRAINT "attachments_topic_id_topics_id_fkey" FOREIGN KEY ("topic_id") REFERENCES "topics"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "attachments" ADD CONSTRAINT "attachments_message_id_messages_id_fkey" FOREIGN KEY ("message_id") REFERENCES "messages"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "attachments" ADD CONSTRAINT "attachments_file_id_files_id_fkey" FOREIGN KEY ("file_id") REFERENCES "files"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "embeddings" ADD CONSTRAINT "embeddings_file_id_files_id_fkey" FOREIGN KEY ("file_id") REFERENCES "files"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "generations" ADD CONSTRAINT "generations_topic_id_topics_id_fkey" FOREIGN KEY ("topic_id") REFERENCES "topics"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "message_parts" ADD CONSTRAINT "message_parts_topic_id_topics_id_fkey" FOREIGN KEY ("topic_id") REFERENCES "topics"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "message_parts" ADD CONSTRAINT "message_parts_message_id_messages_id_fkey" FOREIGN KEY ("message_id") REFERENCES "messages"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "message_parts" ADD CONSTRAINT "message_parts_tool_call_id_tool_calls_id_fkey" FOREIGN KEY ("tool_call_id") REFERENCES "tool_calls"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "messages" ADD CONSTRAINT "messages_topic_id_topics_id_fkey" FOREIGN KEY ("topic_id") REFERENCES "topics"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "messages" ADD CONSTRAINT "messages_generation_id_generations_id_fkey" FOREIGN KEY ("generation_id") REFERENCES "generations"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "models" ADD CONSTRAINT "models_provider_id_providers_id_fkey" FOREIGN KEY ("provider_id") REFERENCES "providers"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "sessions" ADD CONSTRAINT "sessions_user_id_users_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE;--> statement-breakpoint
+ALTER TABLE "topics" ADD CONSTRAINT "topics_agent_id_agents_id_fkey" FOREIGN KEY ("agent_id") REFERENCES "agents"("id") ON DELETE CASCADE;
\ No newline at end of file
diff --git a/drizzle/migrations/20260409052924_mute_patriot/snapshot.json b/drizzle/migrations/20260505033406_powerful_arclight/snapshot.json
similarity index 99%
rename from drizzle/migrations/20260409052924_mute_patriot/snapshot.json
rename to drizzle/migrations/20260505033406_powerful_arclight/snapshot.json
index 38e37f1..ade1965 100644
--- a/drizzle/migrations/20260409052924_mute_patriot/snapshot.json
+++ b/drizzle/migrations/20260505033406_powerful_arclight/snapshot.json
@@ -1,9 +1,9 @@
 {
   "version": "8",
   "dialect": "postgres",
-  "id": "5af4d48d-34c4-4952-aadf-c434cf32d55f",
+  "id": "fca582f6-c25d-4250-92f4-a51d1b57d3b4",
   "prevIds": [
-    "f031de7a-cc2b-4725-9667-e059eb7fb46c"
+    "00000000-0000-0000-0000-000000000000"
   ],
   "ddl": [
     {
@@ -2346,7 +2346,7 @@
         "id"
       ],
       "onUpdate": "NO ACTION",
-      "onDelete": "NO ACTION",
+      "onDelete": "CASCADE",
       "name": "attachments_topic_id_topics_id_fkey",
       "entityType": "fks",
       "schema": "public",
diff --git a/drizzle/migrations/20260511154808_slimy_annihilus/migration.sql b/drizzle/migrations/20260511154808_slimy_annihilus/migration.sql
new file mode 100644
index 0000000..f3b9d65
--- /dev/null
+++ b/drizzle/migrations/20260511154808_slimy_annihilus/migration.sql
@@ -0,0 +1,13 @@
+ALTER TABLE "files" ADD COLUMN "size" integer DEFAULT 0 NOT NULL;--> statement-breakpoint
+ALTER TABLE "messages" ADD COLUMN "active_child_id" text;--> statement-breakpoint
+UPDATE "messages" m
+SET "active_child_id" = (
+    SELECT child."id"
+    FROM "messages" child
+    WHERE child."parent_message_id" = m."id"
+    ORDER BY child."created_at" ASC
+    OFFSET (m."focused_index" - 1)
+    LIMIT 1
+)
+WHERE m."focused_index" IS NOT NULL AND m."focused_index" > 0;--> statement-breakpoint
+ALTER TABLE "messages" DROP COLUMN "focused_index";
\ No newline at end of file
diff --git a/drizzle/migrations/20260409052841_powerful_alex_power/snapshot.json b/drizzle/migrations/20260511154808_slimy_annihilus/snapshot.json
similarity index 93%
rename from drizzle/migrations/20260409052841_powerful_alex_power/snapshot.json
rename to drizzle/migrations/20260511154808_slimy_annihilus/snapshot.json
index 40fc91f..43bd854 100644
--- a/drizzle/migrations/20260409052841_powerful_alex_power/snapshot.json
+++ b/drizzle/migrations/20260511154808_slimy_annihilus/snapshot.json
@@ -1,10 +1,10 @@
 {
-  "dialect": "postgres",
-  "id": "f031de7a-cc2b-4725-9667-e059eb7fb46c",
-  "prevIds": [
-    "00000000-0000-0000-0000-000000000000"
-  ],
   "version": "8",
+  "dialect": "postgres",
+  "id": "00f5b66f-e79e-40f4-89e3-9ff1d2dbf757",
+  "prevIds": [
+    "fca582f6-c25d-4250-92f4-a51d1b57d3b4"
+  ],
   "ddl": [
     {
       "values": [
@@ -133,110 +133,6 @@
       "entityType": "tables",
       "schema": "public"
     },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "users"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "settings"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "models"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "verifications"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "generations"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "topics"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "attachments"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "tool_calls"
-    },
     {
       "type": "text",
       "typeSchema": null,
@@ -250,136 +146,6 @@
       "schema": "public",
       "table": "accounts"
     },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "message_parts"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "providers"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "embeddings"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "agents"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "sessions"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "messages"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "files"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "topics"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "files"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "providers"
-    },
     {
       "type": "text",
       "typeSchema": null,
@@ -393,214 +159,6 @@
       "schema": "public",
       "table": "accounts"
     },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "message_parts"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "generations"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "identifier",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "verifications"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "name",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "users"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "models"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "agents"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "tool_calls"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "settings"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "attachments"
-    },
-    {
-      "type": "text",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "user_id",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "messages"
-    },
-    {
-      "type": "timestamp",
-      "typeSchema": null,
-      "notNull": true,
-      "dimensions": 0,
-      "default": null,
-      "generated": null,
-      "identity": null,
-      "name": "expires_at",
-      "entityType": "columns",
-      "schema": "public",
-      "table": "sessions"
-    },
-    {
-      "type": "text",
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@@ -614,331 +172,6 @@
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@@ -952,71 +185,6 @@
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@@ -1030,149 +198,6 @@
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@@ -1186,266 +211,6 @@
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@@ -1472,110 +237,6 @@
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@@ -1589,32 +250,6 @@
       "schema": "public",
       "table": "accounts"
     },
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     {
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       "typeSchema": null,
@@ -1629,17 +264,17 @@
       "table": "accounts"
     },
     {
-      "type": "integer",
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       "notNull": false,
       "dimensions": 0,
       "default": null,
       "generated": null,
       "identity": null,
-      "name": "context_window",
+      "name": "password",
       "entityType": "columns",
       "schema": "public",
-      "table": "models"
+      "table": "accounts"
     },
     {
       "type": "timestamp",
@@ -1649,10 +284,569 @@
       "default": "now()",
       "generated": null,
       "identity": null,
+      "name": "created_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "accounts"
+    },
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       "name": "updated_at",
       "entityType": "columns",
       "schema": "public",
-      "table": "messages"
+      "table": "accounts"
+    },
+    {
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+      "schema": "public",
+      "table": "agents"
+    },
+    {
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+      "name": "user_id",
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+      "schema": "public",
+      "table": "agents"
+    },
+    {
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+      "name": "name",
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+      "schema": "public",
+      "table": "agents"
+    },
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+      "generated": null,
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+      "name": "system_prompt",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "agents"
+    },
+    {
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+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "image_url",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "agents"
+    },
+    {
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+      "generated": null,
+      "identity": null,
+      "name": "default_model_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "agents"
+    },
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+      "table": "agents"
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+      "generated": null,
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+      "entityType": "columns",
+      "schema": "public",
+      "table": "agents"
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+      "table": "message_parts"
+    },
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+      "identity": null,
+      "name": "user_id",
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+      "schema": "public",
+      "table": "message_parts"
+    },
+    {
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+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "topic_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "message_parts"
+    },
+    {
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+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "message_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "message_parts"
+    },
+    {
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+      "notNull": false,
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+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "tool_call_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "message_parts"
+    },
+    {
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+      "identity": null,
+      "name": "type",
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+      "table": "message_parts"
+    },
+    {
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+      "identity": null,
+      "name": "content",
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+      "schema": "public",
+      "table": "message_parts"
+    },
+    {
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+      "notNull": false,
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+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "provider_options",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "message_parts"
+    },
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+      "identity": null,
+      "name": "finished",
+      "entityType": "columns",
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+      "table": "message_parts"
     },
     {
       "type": "timestamp",
@@ -1680,6 +874,136 @@
       "schema": "public",
       "table": "message_parts"
     },
+    {
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+      "notNull": true,
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+      "identity": null,
+      "name": "id",
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+      "table": "messages"
+    },
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+      "identity": null,
+      "name": "user_id",
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+      "table": "messages"
+    },
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+      "notNull": true,
+      "dimensions": 0,
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+      "identity": null,
+      "name": "topic_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "messages"
+    },
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+      "notNull": false,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "parent_message_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "messages"
+    },
+    {
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+      "notNull": false,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "generation_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "messages"
+    },
+    {
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+      "typeSchema": "public",
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+      "default": null,
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+      "identity": null,
+      "name": "role",
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+    },
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+      "notNull": false,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "content",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "messages"
+    },
+    {
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+      "notNull": false,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "active_child_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "messages"
+    },
+    {
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+      "notNull": false,
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+      "default": "false",
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+      "identity": null,
+      "name": "deleted",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "messages"
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+      "identity": null,
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+      "table": "messages"
+    },
     {
       "type": "timestamp",
       "typeSchema": null,
@@ -1693,6 +1017,136 @@
       "schema": "public",
       "table": "messages"
     },
+    {
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+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "provider_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "models"
+    },
+    {
+      "type": "text",
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+      "notNull": true,
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+      "identity": null,
+      "name": "name",
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+      "default": "'{}'",
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+      "identity": null,
+      "name": "cost",
+      "entityType": "columns",
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+    },
+    {
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+      "notNull": true,
+      "dimensions": 1,
+      "default": "'{}'",
+      "generated": null,
+      "identity": null,
+      "name": "input_modalities",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "models"
+    },
+    {
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+      "notNull": true,
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+      "identity": null,
+      "name": "output_modalities",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "models"
+    },
+    {
+      "type": "text",
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+      "notNull": true,
+      "dimensions": 1,
+      "default": "'{}'",
+      "generated": null,
+      "identity": null,
+      "name": "capabilities",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "models"
+    },
+    {
+      "type": "integer",
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+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "context_window",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "models"
+    },
     {
       "type": "text",
       "typeSchema": null,
@@ -1706,19 +1160,6 @@
       "schema": "public",
       "table": "models"
     },
-    {
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-      "entityType": "columns",
-      "schema": "public",
-      "table": "accounts"
-    },
     {
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       "typeSchema": null,
@@ -1732,32 +1173,6 @@
       "schema": "public",
       "table": "models"
     },
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-      "type": "timestamp",
-      "typeSchema": null,
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-      "table": "accounts"
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-      "entityType": "columns",
-      "schema": "public",
-      "table": "accounts"
-    },
     {
       "type": "boolean",
       "typeSchema": null,
@@ -1784,15 +1199,626 @@
       "schema": "public",
       "table": "models"
     },
+    {
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+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "providers"
+    },
+    {
+      "type": "text",
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+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "user_id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "providers"
+    },
+    {
+      "type": "text",
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+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "type",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "providers"
+    },
+    {
+      "type": "text",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "name",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "providers"
+    },
+    {
+      "type": "boolean",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": "true",
+      "generated": null,
+      "identity": null,
+      "name": "enabled",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "providers"
+    },
+    {
+      "type": "jsonb",
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+      "notNull": true,
+      "dimensions": 0,
+      "default": "'{}'",
+      "generated": null,
+      "identity": null,
+      "name": "config",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "providers"
+    },
+    {
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+      "notNull": true,
+      "dimensions": 0,
+      "default": "now()",
+      "generated": null,
+      "identity": null,
+      "name": "created_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "providers"
+    },
+    {
+      "type": "timestamp",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": "now()",
+      "generated": null,
+      "identity": null,
+      "name": "updated_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "providers"
+    },
+    {
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+      "generated": null,
+      "identity": null,
+      "name": "id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "sessions"
+    },
+    {
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+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "expires_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "sessions"
+    },
+    {
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+      "name": "token",
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+      "table": "sessions"
+    },
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+      "default": "now()",
+      "generated": null,
+      "identity": null,
+      "name": "created_at",
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+      "schema": "public",
+      "table": "sessions"
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+      "schema": "public",
+      "table": "sessions"
+    },
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+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "ip_address",
+      "entityType": "columns",
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+    },
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+      "name": "user_agent",
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+      "name": "appearance",
+      "entityType": "columns",
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+    },
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+      "identity": null,
+      "name": "agent_id",
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+    },
+    {
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+      "default": "false",
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+      "identity": null,
+      "name": "renaming",
+      "entityType": "columns",
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+      "identity": null,
+      "name": "created_at",
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+      "table": "users"
+    },
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+    },
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+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "email",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "users"
+    },
+    {
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+      "default": "false",
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+      "identity": null,
+      "name": "email_verified",
+      "entityType": "columns",
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+      "table": "users"
+    },
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+      "identity": null,
+      "name": "image",
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+    },
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+      "name": "created_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "users"
+    },
+    {
+      "type": "timestamp",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": "now()",
+      "generated": null,
+      "identity": null,
+      "name": "updated_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "users"
+    },
+    {
+      "type": "text",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "id",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "verifications"
+    },
+    {
+      "type": "text",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "identifier",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "verifications"
+    },
+    {
+      "type": "text",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "value",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "verifications"
+    },
+    {
+      "type": "timestamp",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": null,
+      "generated": null,
+      "identity": null,
+      "name": "expires_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "verifications"
+    },
+    {
+      "type": "timestamp",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": "now()",
+      "generated": null,
+      "identity": null,
+      "name": "created_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "verifications"
+    },
+    {
+      "type": "timestamp",
+      "typeSchema": null,
+      "notNull": true,
+      "dimensions": 0,
+      "default": "now()",
+      "generated": null,
+      "identity": null,
+      "name": "updated_at",
+      "entityType": "columns",
+      "schema": "public",
+      "table": "verifications"
+    },
     {
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -1809,11 +1835,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -1830,32 +1856,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "topic_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "message_id"
-        }
-      ],
-      "isUnique": false,
-      "where": null,
-      "with": "",
-      "method": "btree",
-      "concurrently": false,
-      "name": "attachments_messageId_idx",
-      "entityType": "indexes",
-      "schema": "public",
-      "table": "attachments"
-    },
-    {
-      "nameExplicit": true,
-      "columns": [
-        {
-          "asc": true,
-          "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "topic_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -1872,11 +1877,32 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "message_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
+          "opclass": null
+        }
+      ],
+      "isUnique": false,
+      "where": null,
+      "with": "",
+      "method": "btree",
+      "concurrently": false,
+      "name": "attachments_messageId_idx",
+      "entityType": "indexes",
+      "schema": "public",
+      "table": "attachments"
+    },
+    {
+      "nameExplicit": true,
+      "columns": [
+        {
+          "value": "user_id",
           "isExpression": false,
-          "value": "user_id"
+          "asc": true,
+          "nullsFirst": false,
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -1893,11 +1919,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "file_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "file_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -1914,11 +1940,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -1935,11 +1961,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "topic_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "topic_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -1956,11 +1982,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -1977,32 +2003,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "topic_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "message_id"
-        }
-      ],
-      "isUnique": false,
-      "where": null,
-      "with": "",
-      "method": "btree",
-      "concurrently": false,
-      "name": "message_parts_messageId_idx",
-      "entityType": "indexes",
-      "schema": "public",
-      "table": "message_parts"
-    },
-    {
-      "nameExplicit": true,
-      "columns": [
-        {
-          "asc": true,
-          "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "topic_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2019,11 +2024,32 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "message_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
+          "opclass": null
+        }
+      ],
+      "isUnique": false,
+      "where": null,
+      "with": "",
+      "method": "btree",
+      "concurrently": false,
+      "name": "message_parts_messageId_idx",
+      "entityType": "indexes",
+      "schema": "public",
+      "table": "message_parts"
+    },
+    {
+      "nameExplicit": true,
+      "columns": [
+        {
+          "value": "user_id",
           "isExpression": false,
-          "value": "user_id"
+          "asc": true,
+          "nullsFirst": false,
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2040,32 +2066,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "topic_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "parent_message_id"
-        }
-      ],
-      "isUnique": false,
-      "where": null,
-      "with": "",
-      "method": "btree",
-      "concurrently": false,
-      "name": "messages_parentMessageId_idx",
-      "entityType": "indexes",
-      "schema": "public",
-      "table": "messages"
-    },
-    {
-      "nameExplicit": true,
-      "columns": [
-        {
-          "asc": true,
-          "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "topic_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2082,11 +2087,32 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "parent_message_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
+          "opclass": null
+        }
+      ],
+      "isUnique": false,
+      "where": null,
+      "with": "",
+      "method": "btree",
+      "concurrently": false,
+      "name": "messages_parentMessageId_idx",
+      "entityType": "indexes",
+      "schema": "public",
+      "table": "messages"
+    },
+    {
+      "nameExplicit": true,
+      "columns": [
+        {
+          "value": "user_id",
           "isExpression": false,
-          "value": "user_id"
+          "asc": true,
+          "nullsFirst": false,
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2103,11 +2129,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "provider_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "provider_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2124,11 +2150,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2145,11 +2171,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2166,11 +2192,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2187,11 +2213,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2208,11 +2234,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2229,11 +2255,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "agent_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "agent_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2250,11 +2276,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "user_id",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "user_id"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2271,11 +2297,11 @@
       "nameExplicit": true,
       "columns": [
         {
+          "value": "identifier",
+          "isExpression": false,
           "asc": true,
           "nullsFirst": false,
-          "opclass": null,
-          "isExpression": false,
-          "value": "identifier"
+          "opclass": null
         }
       ],
       "isUnique": false,
@@ -2289,7 +2315,7 @@
       "table": "verifications"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "user_id"
       ],
@@ -2306,7 +2332,7 @@
       "table": "accounts"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "default_model_id"
       ],
@@ -2323,24 +2349,24 @@
       "table": "agents"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
-        "file_id"
+        "topic_id"
       ],
       "schemaTo": "public",
-      "tableTo": "files",
+      "tableTo": "topics",
       "columnsTo": [
         "id"
       ],
       "onUpdate": "NO ACTION",
       "onDelete": "CASCADE",
-      "name": "attachments_file_id_files_id_fkey",
+      "name": "attachments_topic_id_topics_id_fkey",
       "entityType": "fks",
       "schema": "public",
       "table": "attachments"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "message_id"
       ],
@@ -2357,24 +2383,24 @@
       "table": "attachments"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
-        "topic_id"
+        "file_id"
       ],
       "schemaTo": "public",
-      "tableTo": "topics",
+      "tableTo": "files",
       "columnsTo": [
         "id"
       ],
       "onUpdate": "NO ACTION",
-      "onDelete": "NO ACTION",
-      "name": "attachments_topic_id_topics_id_fkey",
+      "onDelete": "CASCADE",
+      "name": "attachments_file_id_files_id_fkey",
       "entityType": "fks",
       "schema": "public",
       "table": "attachments"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "file_id"
       ],
@@ -2391,7 +2417,7 @@
       "table": "embeddings"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "topic_id"
       ],
@@ -2408,41 +2434,7 @@
       "table": "generations"
     },
     {
-      "nameExplicit": true,
-      "columns": [
-        "message_id"
-      ],
-      "schemaTo": "public",
-      "tableTo": "messages",
-      "columnsTo": [
-        "id"
-      ],
-      "onUpdate": "NO ACTION",
-      "onDelete": "CASCADE",
-      "name": "message_parts_message_id_messages_id_fkey",
-      "entityType": "fks",
-      "schema": "public",
-      "table": "message_parts"
-    },
-    {
-      "nameExplicit": true,
-      "columns": [
-        "tool_call_id"
-      ],
-      "schemaTo": "public",
-      "tableTo": "tool_calls",
-      "columnsTo": [
-        "id"
-      ],
-      "onUpdate": "NO ACTION",
-      "onDelete": "CASCADE",
-      "name": "message_parts_tool_call_id_tool_calls_id_fkey",
-      "entityType": "fks",
-      "schema": "public",
-      "table": "message_parts"
-    },
-    {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "topic_id"
       ],
@@ -2459,24 +2451,41 @@
       "table": "message_parts"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
-        "generation_id"
+        "message_id"
       ],
       "schemaTo": "public",
-      "tableTo": "generations",
+      "tableTo": "messages",
       "columnsTo": [
         "id"
       ],
       "onUpdate": "NO ACTION",
       "onDelete": "CASCADE",
-      "name": "messages_generation_id_generations_id_fkey",
+      "name": "message_parts_message_id_messages_id_fkey",
       "entityType": "fks",
       "schema": "public",
-      "table": "messages"
+      "table": "message_parts"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
+      "columns": [
+        "tool_call_id"
+      ],
+      "schemaTo": "public",
+      "tableTo": "tool_calls",
+      "columnsTo": [
+        "id"
+      ],
+      "onUpdate": "NO ACTION",
+      "onDelete": "CASCADE",
+      "name": "message_parts_tool_call_id_tool_calls_id_fkey",
+      "entityType": "fks",
+      "schema": "public",
+      "table": "message_parts"
+    },
+    {
+      "nameExplicit": false,
       "columns": [
         "topic_id"
       ],
@@ -2493,7 +2502,24 @@
       "table": "messages"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
+      "columns": [
+        "generation_id"
+      ],
+      "schemaTo": "public",
+      "tableTo": "generations",
+      "columnsTo": [
+        "id"
+      ],
+      "onUpdate": "NO ACTION",
+      "onDelete": "CASCADE",
+      "name": "messages_generation_id_generations_id_fkey",
+      "entityType": "fks",
+      "schema": "public",
+      "table": "messages"
+    },
+    {
+      "nameExplicit": false,
       "columns": [
         "provider_id"
       ],
@@ -2510,7 +2536,7 @@
       "table": "models"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "user_id"
       ],
@@ -2527,7 +2553,7 @@
       "table": "sessions"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "agent_id"
       ],
@@ -2547,183 +2573,183 @@
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "accounts_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "accounts"
+      "table": "accounts",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "agents_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "agents"
+      "table": "agents",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "attachments_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "attachments"
+      "table": "attachments",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "embeddings_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "embeddings"
+      "table": "embeddings",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "files_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "files"
+      "table": "files",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "generations_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "generations"
+      "table": "generations",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "message_parts_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "message_parts"
+      "table": "message_parts",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "messages_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "messages"
+      "table": "messages",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "models_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "models"
+      "table": "models",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "providers_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "providers"
+      "table": "providers",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "sessions_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "sessions"
+      "table": "sessions",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "settings_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "settings"
+      "table": "settings",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "tool_calls_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "tool_calls"
+      "table": "tool_calls",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "topics_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "topics"
+      "table": "topics",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "users_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "users"
+      "table": "users",
+      "entityType": "pks"
     },
     {
       "columns": [
         "id"
       ],
-      "nameExplicit": true,
+      "nameExplicit": false,
       "name": "verifications_pkey",
-      "entityType": "pks",
       "schema": "public",
-      "table": "verifications"
+      "table": "verifications",
+      "entityType": "pks"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "token"
       ],
       "nullsNotDistinct": false,
       "name": "sessions_token_key",
-      "entityType": "uniques",
       "schema": "public",
-      "table": "sessions"
+      "table": "sessions",
+      "entityType": "uniques"
     },
     {
-      "nameExplicit": true,
+      "nameExplicit": false,
       "columns": [
         "email"
       ],
       "nullsNotDistinct": false,
       "name": "users_email_key",
-      "entityType": "uniques",
       "schema": "public",
-      "table": "users"
+      "table": "users",
+      "entityType": "uniques"
     }
   ],
   "renames": []
diff --git a/drizzle/schema.ts b/drizzle/schema.ts
index 1bf5eac..ecd6d5c 100644
--- a/drizzle/schema.ts
+++ b/drizzle/schema.ts
@@ -55,7 +55,7 @@ export const providers = pgTable('providers', {
         apiProxyUrl?: string;
     }>().default({}),
     createdAt: timestamp('created_at').notNull().defaultNow(),
-    updatedAt: timestamp('updated_at').notNull().defaultNow(),
+    updatedAt: timestamp('updated_at').notNull().defaultNow().$onUpdate(() => /* @__PURE__ */ new Date()),
 }, (table) => [
     index('providers_userId_idx').on(table.userId),
 ]);
@@ -134,7 +134,7 @@ export const messages = pgTable('messages', {
     generationId: text('generation_id').references(() => generations.id, { onDelete: 'cascade' }),
     role: roleEnum('role').notNull(),
     content: text('content'),
-    focusedIndex: integer('focused_index'),
+    activeChildId: text('active_child_id'),
     deleted: boolean('deleted').default(false),
     updatedAt: timestamp('updated_at').notNull().defaultNow().$onUpdate(() => /* @__PURE__ */ new Date()),
     createdAt: timestamp('created_at').notNull().defaultNow(),
@@ -155,7 +155,7 @@ export const messageParts = pgTable('message_parts', {
     providerOptions: jsonb('provider_options'),
     finished: boolean('finished').notNull().default(false),
     createdAt: timestamp('created_at').notNull().defaultNow(),
-    lastUpdatedAt: timestamp('last_updated_at').notNull().defaultNow(),
+    lastUpdatedAt: timestamp('last_updated_at').notNull().defaultNow().$onUpdate(() => /* @__PURE__ */ new Date()),
 }, (table) => [
     index('message_parts_topicId_idx').on(table.topicId),
     index('message_parts_messageId_idx').on(table.messageId),
@@ -212,6 +212,7 @@ export const files = pgTable('files', {
     userId: text('user_id').notNull(),
     name: text('name').notNull(),
     mimeType: text('mime_type').notNull(),
+    size: integer('size').notNull().default(0),
     url: text('url').notNull(),
     createdAt: timestamp('created_at').notNull().defaultNow(),
 }, (table) => [
diff --git a/server/api/file/[id[.delete.ts b/server/api/file/[id].delete.ts
similarity index 100%
rename from server/api/file/[id[.delete.ts
rename to server/api/file/[id].delete.ts
diff --git a/server/api/messages/[messageId]/index.delete.ts b/server/api/messages/[messageId]/index.delete.ts
index 00fdb09..3cf041d 100644
--- a/server/api/messages/[messageId]/index.delete.ts
+++ b/server/api/messages/[messageId]/index.delete.ts
@@ -77,7 +77,9 @@ export default defineEventHandler(async (event) => {
     }
 
     if (rootMessage.deleted === true) {
-        const childMessage = rootMessage.children[rootMessage.focusedIndex!];
+        const childMessage = rootMessage.activeChildId
+            ? rootMessage.children.find(c => c.id === rootMessage.activeChildId)
+            : rootMessage.children[0];
         if (!childMessage) {
             console.error('Message not found');
             return { ok: false };
@@ -88,27 +90,15 @@ export default defineEventHandler(async (event) => {
         const remainingChildren = rootMessage.children.filter(child => child!.id !== childMessage.id);
         if (remainingChildren.length === 0) {
             await deeplyDeleteMessage(rootMessage.id, topicId, userId);
-        } else {
-            const newFocusedIndex = rootMessage.focusedIndex && rootMessage.focusedIndex > 0
-                ? Math.min(rootMessage.focusedIndex - 1, remainingChildren.length - 1)
-                : 0;
-
-            await db.update(messages).set({ focusedIndex: newFocusedIndex }).where(sql`${messages.id} = ${rootMessage.id} AND ${messages.userId} = ${userId}`);
-
-            topicEvents.emit(topicId, {
-                type: 'MESSAGE_UPDATED',
-                payload: { ...rootMessage, focusedIndex: newFocusedIndex },
-            });
         }
         return { ok: true };
     }
 
     if (
-        (rootMessage.focusedIndex !== undefined && rootMessage.focusedIndex !== null)
-        && rootMessage.focusedIndex > 0
+        rootMessage.activeChildId
         && rootMessage.children.length > 0
     ) {
-        const childMessage = rootMessage.children[rootMessage.focusedIndex - 1];
+        const childMessage = rootMessage.children.find(c => c.id === rootMessage.activeChildId);
         if (!childMessage) {
             console.error('Message not found');
             return { ok: false };
@@ -116,17 +106,6 @@ export default defineEventHandler(async (event) => {
 
         await deeplyDeleteMessage(childMessage.id, topicId, userId);
 
-        const remainingChildren = rootMessage.children.filter(child => child!.id !== childMessage.id);
-        const newFocusedIndex = remainingChildren.length > 0
-            ? Math.min(rootMessage.focusedIndex - 1, remainingChildren.length - 1)
-            : 0;
-
-        await db.update(messages).set({ focusedIndex: newFocusedIndex }).where(sql`${messages.id} = ${rootMessage.id} AND ${messages.userId} = ${userId}`);
-
-        topicEvents.emit(topicId, {
-            type: 'MESSAGE_UPDATED',
-            payload: { ...rootMessage, focusedIndex: newFocusedIndex },
-        });
         return { ok: true };
     }
 
diff --git a/server/api/topic/[topicId]/chat/index.post.ts b/server/api/topic/[topicId]/chat/index.post.ts
index ffd0271..44c0574 100644
--- a/server/api/topic/[topicId]/chat/index.post.ts
+++ b/server/api/topic/[topicId]/chat/index.post.ts
@@ -260,8 +260,8 @@ export default defineEventHandler(async (event) => {
             });
         }
 
-        await db.update(messages).set({ focusedIndex: (parentMessage.focusedIndex ?? 0) + 1 }).where(eq(messages.id, parentMessageId));
-        events.push({ type: 'MESSAGE_UPDATED', payload: { focusedIndex: (parentMessage.focusedIndex ?? 0) + 1 } });
+        await db.update(messages).set({ activeChildId: agentmessage.id }).where(eq(messages.id, parentMessageId));
+        events.push({ type: 'MESSAGE_UPDATED', payload: { id: parentMessageId, activeChildId: agentmessage.id } });
 
         // we need to make the topic messages all the messages excluding the ones after the message we wish to regenerate
         // and if parentMessageId is undefined, then excluding the last message
@@ -392,7 +392,13 @@ type SearchTheWebConfig = SearchTheWebRerankedConfig | SearchTheWebUnrankedConfi
 
 export const searchTheWeb = (config: SearchTheWebConfig) => {
     return async (query: string) => {
-        const results = await $fetch<any>(`${process.env.SEARXNG_URL}/search`, {
+        const results = await $fetch<{
+            results: Array<{
+                title: string;
+                url: string;
+                content: string;
+            }>;
+        }>(`${process.env.SEARXNG_URL}/search`, {
             query: {
                 q: query,
                 format: 'json',
@@ -675,6 +681,7 @@ async function generateResponse(
                     payload: {
                         messageId: message.id,
                         partId: part.id,
+                        lastUpdatedAt: new Date(),
                         content: part.accumulatedContent,
                     }
                 })
@@ -850,6 +857,7 @@ async function generateResponse(
                             payload: {
                                 messageId: message.id,
                                 partId: part.id,
+                                lastUpdatedAt: new Date(),
                                 content: token.text,
                             }
                         })
@@ -903,6 +911,7 @@ async function generateResponse(
                             payload: {
                                 messageId: message.id,
                                 partId: part.id,
+                                lastUpdatedAt: dbPart.lastUpdatedAt,
                                 content: part.accumulatedContent,
                             }
                         })
@@ -1177,7 +1186,7 @@ async function generateResponse(
                                 error: {
                                     type: outputType as ToolCallType,
                                     value: outputValue as string,
-                                }
+                                },
                             }
                         })
                     } else {
diff --git a/utils/message.ts b/utils/message.ts
index 028dd11..647372c 100644
--- a/utils/message.ts
+++ b/utils/message.ts
@@ -22,20 +22,12 @@ export const buildFocusedMessageTree = (messages: Readonly<Message[]>): MessageE
     let focusedMessageTree: MessageEntity[] = [];
 
     for (const message of messages) {
-        if (message.focusedIndex) {
-            if (message.focusedIndex === 0) {
-                focusedMessageTree.push(message);
-                continue;
-            }
-
-            const activeChild = message.children[Math.min(Math.max(message.focusedIndex! - 1, 0), message.children.length - 1)]
+        if (message.activeChildId && message.children.length > 0) {
+            const activeChild = message.children.find(c => c?.id === message.activeChildId);
             if (activeChild) {
                 focusedMessageTree.push(activeChild);
-            } else {
-                focusedMessageTree.push(message);
+                continue;
             }
-
-            continue;
         }
 
         focusedMessageTree.push(message);