fix web search issues & add model, search, and search_provider options

in url params

Author: 0xGingi

README.md

@@ -14,7 +14,7 @@ Get the native NanoChat experience on your devices:
 - **iOS**: [nanochat-ios](https://github.com/nanogpt-community/nanochat-ios) ([TestFlight Beta](https://testflight.apple.com/join/afmPp2xW))
 - **Desktop**: coming soon
 
-**IMPORTANT** - Rename your thom-chat.db.* files to nanochat.db.*
+**IMPORTANT** - Rename your thom-chat.db._ files to nanochat.db._
 
 ---
 
@@ -160,30 +160,51 @@ View performance benchmarks from [Artificial Analysis](https://artificialanalysi
 ### Provider Selection
 
 For models supported by multiple providers on NanoGPT, you can:
+
 - Select a specific provider (e.g., 'openai', 'anthropic', 'google') for a model.
 - Configure preferred and excluded providers in Account Settings.
 - Enable automatic fallback to other providers if the preferred one fails.
 
 ### Video Generation
 
 Generate videos using NanoGPT's video models:
+
 - Text-to-video generation
 - View generation status and history
 - Download generated videos
 
+### URL Parameters & Shortcuts
+
+You can use URL parameters to pre-configure your chat session. This is useful for creating bookmarks or "bang" style shortcuts (e.g. in your browser).
+
+| Parameter         | Description                                              | Example                      |
+| ----------------- | -------------------------------------------------------- | ---------------------------- |
+| `q`               | Pre-fills the chat input                                 | `?q=Explain quantum physics` |
+| `model`           | Selects the AI model                                     | `?model=openai/gpt-4o`       |
+| `model_provider`  | Selects the provider for the model (NanoGPT)             | `?model_provider=cerebras`   |
+| `search`          | Sets web search mode (`off`, `standard`, `deep`)         | `?search=deep`               |
+| `search_provider` | Sets search provider (`linkup`, `tavily`, `exa`, `kagi`) | `?search_provider=tavily`    |
+| `projectId`       | Contextualizes chat with a specific Project              | `?projectId=123`             |
+
+**Example "Bang" URL:**
+`https://your-nanochat.com/chat?model=anthropic/claude-3-5-sonnet&search=deep&q=%s`
+
+**In-Chat Shortcuts:**
+
+- `@<rule_name>`: Apply a specific user rule to the current message (e.g., `@concise`)
 
 ---
 
 ## Environment Variables
 
-| Variable                     | Description                                             |
-| ---------------------------- | ------------------------------------------------------- |
-| `DATABASE_URL`               | SQLite database path (default: ./data/nanochat.db)      |
-| `NANOGPT_API_KEY`            | Nano-GPT API key for generation                         |
-| `BETTER_AUTH_SECRET`         | Authentication secret                                   |
-| `BETTER_AUTH_URL`            | Base URL for authentication                             |
-| `ARTIFICIAL_ANALYSIS_API_KEY`| (Optional) API key for model benchmarks from artificialanalysis.ai |
-| `ENCRYPTION_KEY`             | (Optional) Encryption key for API keys at rest. Generate with `openssl rand -base64 32` |
+| Variable                      | Description                                                                             |
+| ----------------------------- | --------------------------------------------------------------------------------------- |
+| `DATABASE_URL`                | SQLite database path (default: ./data/nanochat.db)                                      |
+| `NANOGPT_API_KEY`             | Nano-GPT API key for generation                                                         |
+| `BETTER_AUTH_SECRET`          | Authentication secret                                                                   |
+| `BETTER_AUTH_URL`             | Base URL for authentication                                                             |
+| `ARTIFICIAL_ANALYSIS_API_KEY` | (Optional) API key for model benchmarks from artificialanalysis.ai                      |
+| `ENCRYPTION_KEY`              | (Optional) Encryption key for API keys at rest. Generate with `openssl rand -base64 32` |
 
 ### API Key Encryption
 

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

@@ -748,6 +748,19 @@ ${attachedRules.map((r) => `- ${r.name}: ${r.rule}`).join('\n')}`;
 		log('Background: MCP tools enabled for this request', startTime);
 	}
 
+	// Filter out web search tool if native web search is enabled
+	// This prevents the model from using the tool instead of the native integration
+	// which supports multiple providers (Tavily, Exa, etc.)
+	const webSearchActive = !webFeaturesDisabled && (lastUserMessage?.webSearchEnabled ?? false);
+	const tools = mcpAvailable
+		? mcpToolDefinitions.filter((t) => {
+				if (webSearchActive && t.type === 'function' && t.function.name === 'nanogpt_web_search') {
+					return false;
+				}
+				return true;
+			})
+		: undefined;
+
 	const streamResult = await ResultAsync.fromPromise(
 		openai.chat.completions.create(
 			{
@@ -758,7 +771,7 @@ ${attachedRules.map((r) => `- ${r.name}: ${r.rule}`).join('\n')}`;
 				reasoning_effort: reasoningEffort,
 				stream_options: { include_usage: true },
 				// Add MCP tools when enabled
-				tools: mcpAvailable ? mcpToolDefinitions : undefined,
+				tools,
 				// @ts-ignore - Custom NanoGPT parameters
 				linkup:
 					!webFeaturesDisabled && (lastUserMessage?.webSearchEnabled ?? false)

src/routes/chat/+page.svelte

@@ -9,7 +9,9 @@
 	import { scale } from 'svelte/transition';
 	import { useCachedQuery, api } from '$lib/cache/cached-query.svelte';
 	import { Provider } from '$lib/types';
+	import { untrack } from 'svelte';
 	import { page } from '$app/state';
+	import { settings } from '$lib/state/settings.svelte.js';
 
 	const defaultSuggestions = [
 		'How does AI work?',
@@ -18,7 +20,7 @@
 		'What is the meaning of life?',
 	];
 
-	const settings = useCachedQuery(api.user_settings.get, {
+	const userSettingsQuery = useCachedQuery(api.user_settings.get, {
 		session_token: session.current?.session.token ?? '',
 	});
 
@@ -73,9 +75,40 @@
 	// Handle URL parameter for initial query
 	$effect(() => {
 		const urlQuery = page.url.searchParams.get('q');
-		if (urlQuery && prompt.current === '') {
-			prompt.current = decodeURIComponent(urlQuery);
-		}
+		const modelParam = page.url.searchParams.get('model');
+		const providerParam = page.url.searchParams.get('model_provider');
+		const searchParam = page.url.searchParams.get('search');
+		const searchProviderParam = page.url.searchParams.get('search_provider');
+
+		untrack(() => {
+			if (urlQuery && prompt.current === '') {
+				prompt.current = decodeURIComponent(urlQuery);
+			}
+
+			if (modelParam && settings.modelId !== modelParam) {
+				settings.modelId = modelParam;
+			}
+
+			if (providerParam && settings.providerId !== providerParam) {
+				settings.providerId = providerParam;
+			}
+
+			if (
+				searchParam &&
+				['off', 'standard', 'deep'].includes(searchParam) &&
+				settings.webSearchMode !== searchParam
+			) {
+				settings.webSearchMode = searchParam as 'off' | 'standard' | 'deep';
+			}
+
+			if (
+				searchProviderParam &&
+				['linkup', 'tavily', 'exa', 'kagi'].includes(searchProviderParam) &&
+				settings.webSearchProvider !== searchProviderParam
+			) {
+				settings.webSearchProvider = searchProviderParam as 'linkup' | 'tavily' | 'exa' | 'kagi';
+			}
+		});
 	});
 </script>