import { randomUUID } from "node:crypto";
import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { z } from "zod";
import { okResult, toErrorResult } from "../errors.js";
import { getTrackedTab, listTrackedTabs, removeTrackedTab, trackTab } from "../state.js";
import type { ToolDeps } from "../server.js";
import type { TabInfo } from "../types.js";
export function registerTabsTools(server: McpServer, deps: ToolDeps): void {
server.tool(
"create_tab",
"Create a new browser tab with anti-detection fingerprinting. Each tab gets a unique fingerprint. Optionally provide a URL and userId for session isolation. Returns the tab ID for subsequent operations.",
{
url: z.string().url().optional().describe("Full URL including protocol (e.g. 'https://example.com')"),
userId: z.string().min(1).optional().describe("User ID for session isolation")
},
async (input: unknown) => {
try {
const parsed = z
.object({
url: z.string().url().optional().describe("Full URL including protocol (e.g. 'https://example.com')"),
userId: z.string().min(1).optional().describe("User ID for session isolation")
})
.parse(input);
const userId = parsed.userId ?? deps.config.defaultUserId;
const sessionKey = randomUUID();
const tab = await deps.client.createTab({
userId,
sessionKey,
url: parsed.url
});
const tracked: TabInfo = {
tabId: tab.tabId,
url: tab.url,
createdAt: new Date().toISOString(),
userId,
sessionKey,
visitedUrls: [tab.url],
toolCalls: 1,
refsCount: 0
};
trackTab(tracked);
return okResult({ tabId: tab.tabId, url: tab.url });
} catch (error) {
return toErrorResult(error);
}
}
);
server.tool(
"close_tab",
"Close a browser tab and release resources. Always close tabs when done to free memory.",
{
tabId: z.string().min(1).describe("Tab ID from create_tab")
},
async (input: unknown) => {
try {
const parsed = z.object({ tabId: z.string().min(1).describe("Tab ID from create_tab") }).parse(input);
const tracked = getTrackedTab(parsed.tabId);
await deps.client.closeTab(parsed.tabId, tracked.userId);
removeTrackedTab(parsed.tabId);
return okResult({ success: true, tabId: parsed.tabId });
} catch (error) {
return toErrorResult(error);
}
}
);
server.tool("list_tabs", "List all open browser tabs with URLs and titles. Use to discover available tabs or verify tab state.", {}, async () => {
try {
const tabs = listTrackedTabs();
return okResult(tabs);
} catch (error) {
return toErrorResult(error);
}
});
}
