ui: add browser get_info tool (#27251)

* ui: add browser get_info tool * format * nits * Update tools/ui/src/lib/stores/tools.svelte.ts Co-authored-by: Aleksander Grygier <aleksander.grygier@gmail.com> --------- Co-authored-by: Aleksander Grygier <aleksander.grygier@gmail.com>
2026-08-17 13:14:33 +02:00
parent d83f72d463
commit 7077abbe14
7 changed files with 112 additions and 19 deletions
@@ -0,0 +1,39 @@
+/**
+ * Browser fallback for the server's `get_info` tool, offered only when the
+ * server does not serve one (llama-server without --agent). It tells the model
+ * which OS the browser runs on and that there is no local file or shell access,
+ * so it does not plan around tools that are not there.
+ *
+ * @see server_tool_get_info in tools/server/server-tools.cpp - the served variant
+ * @see buildBrowserInfoToolDefinition in constants/browser-info.ts - tool schema sent to the LLM
+ */
+
+import { browser } from '$app/environment';
+import {
+	BROWSER_INFO_NOTE,
+	BROWSER_INFO_OS_UA_PATTERNS,
+	BROWSER_INFO_OS_UNKNOWN
+} from '$lib/constants';
+import type { ToolExecutionResult } from '$lib/types';
+
+function detectOs(userAgent: string): string {
+	for (const [pattern, os] of BROWSER_INFO_OS_UA_PATTERNS) {
+		if (pattern.test(userAgent)) return os;
+	}
+
+	return BROWSER_INFO_OS_UNKNOWN;
+}
+
+/**
+ * Result shape mirrors the server tool's JSON so the `get_info` renderer reads
+ * `os` the same way, minus `cwd` - there is no working directory to report.
+ */
+export function executeBrowserInfoTool(): ToolExecutionResult {
+	return {
+		content: JSON.stringify({
+			note: BROWSER_INFO_NOTE,
+			os: browser ? detectOs(navigator.userAgent) : BROWSER_INFO_OS_UNKNOWN
+		}),
+		isError: false
+	};
+}