| /** | |
| * 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 | |
| }; | |
| } | |