better default title

src/lib/backend/convex/conversations.ts

@@ -5,6 +5,7 @@ import { type Id } from './_generated/dataModel';
 import { type SessionObj } from './betterAuth';
 import { messageRoleValidator } from './schema';
 import { mutation } from './functions';
+import { getFirstSentence } from '../../utils/strings';
 
 export const get = query({
 	args: {
@@ -101,8 +102,11 @@ export const createAndAddMessage = mutation({
 			throw new Error('Unauthorized');
 		}
 
+		// use first sentence as a placeholder title
+		const [firstSentence, full] = getFirstSentence(args.content);
+
 		const conversationId = await ctx.db.insert('conversations', {
-			title: 'Untitled (for now)',
+			title: firstSentence ?? full.slice(0, 35),
 			// eslint-disable-next-line @typescript-eslint/no-explicit-any -- Id type is janking out
 			user_id: session.userId as any,
 			updated_at: Date.now(),

src/lib/utils/strings.ts

@@ -0,0 +1,8 @@
+export function getFirstSentence(text: string): [string | null, string] {
+	// match any punctuation followed by a space or the end of the string
+	const index = text.match(/[.!?](\s|$)/)?.index;
+
+	if (index === undefined) return [null, text];
+
+	return [text.slice(0, index + 1), text];
+}

src/routes/account/models/model-card.svelte

@@ -6,6 +6,7 @@
 	import { api } from '$lib/backend/convex/_generated/api';
 	import { session } from '$lib/state/session.svelte.js';
 	import { ResultAsync } from 'neverthrow';
+	import { getFirstSentence } from '$lib/utils/strings';
 
 	type Model = {
 		id: string;
@@ -24,16 +25,7 @@
 
 	const client = useConvexClient();
 
-	function getShortDescription(text: string) {
-		// match any punctuation followed by a space or the end of the string
-		const index = text.match(/[.!?](\s|$)/)?.index;
-
-		if (index === undefined) return { shortDescription: null, fullDescription: text };
-
-		return { shortDescription: text.slice(0, index + 1), fullDescription: text };
-	}
-
-	const { shortDescription, fullDescription } = $derived(getShortDescription(model.description));
+	const [shortDescription, fullDescription] = $derived(getFirstSentence(model.description));
 
 	let showMore = $state(false);
 

src/routes/api/generate-message/+server.ts

@@ -86,7 +86,7 @@ async function generateConversationTitle({
 	const conversations = conversationResult.value;
 	const conversation = conversations.find((c) => c._id === conversationId);
 
-	if (!conversation || !conversation.title.includes('Untitled')) {
+	if (!conversation) {
 		log('Title generation: Conversation not found or already has custom title', startTime);
 		return;
 	}