my-pi/extensions/exa.ts

import type { ExtensionAPI } from "@earendil-works/pi-coding-agent";
import { createMcpAdapter } from "pi-mcp-adapter";
import { createExaToolApiOverride } from "./exa-tool-prefix.ts";

const EXA_TOOLS = ["web_search_exa", "web_fetch_exa", "web_search_advanced_exa"];
const EXA_MCP_URL = `https://mcp.exa.ai/mcp?tools=${EXA_TOOLS.join(",")}`;

const exaAdapter = createMcpAdapter({
	config: {
		settings: {
			disableProxyTool: true,
			scriptMode: false,
		},
		mcpServers: {
			exa: {
				url: EXA_MCP_URL,
				protocolVersion: "auto",
				lifecycle: "eager",
				directTools: EXA_TOOLS,
				includeTools: EXA_TOOLS,
				toolPrefix: "none",
				approveTools: false,
				exposeResources: false,
			},
		},
	},
});

/** Connect Pi to Exa while exposing every direct tool as `exa_<original-name>`. */
export default function exaExtension(pi: ExtensionAPI): void {
	exaAdapter(createExaToolApiOverride(pi));
}