import { describe, expect, it } from "@effect/vitest";import { Client } from "@modelcontextprotocol/sdk/client/index.js";import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js";import { Effect } from "effect";import { mkdtempSync } from "node:fs";import { tmpdir } from "node:os";import { join, resolve } from "node:path"; const repoRoot = resolve(import.meta.dirname, "../../../..");const cliEntry = resolve(repoRoot, "apps/cli/src/main.ts");const testScope = resolve(repoRoot, "apps/local"); describe("MCP stdio integration", () => {  it.effect(    "execute tool returns result over stdio transport",    () =>      Effect.gen(function* () {        // Fresh temp dir so the test doesn't migrate against the developer's        // real ~/.executor/data.db.        const dataDir = mkdtempSync(join(tmpdir(), "executor-mcp-test-"));         const transport = new StdioClientTransport({          command: "bun",          args: ["run", cliEntry, "mcp", "--scope", testScope],          env: { ...process.env, EXECUTOR_DATA_DIR: dataDir },        });         const client = new Client({ name: "test-client", version: "1.0.0" }, { capabilities: {} });         yield* Effect.acquireRelease(          Effect.promise(() => client.connect(transport)),          () => Effect.promise(() => transport.close()),        );         const { tools } = yield* Effect.promise(() => client.listTools());        expect(tools.map((t) => t.name)).toContain("execute");         const result = yield* Effect.promise(() =>          client.callTool({            name: "execute",            arguments: { code: "return 2+2" },          }),        );         const text = (result.content as Array<{ type: string; text: string }>)[0]?.text;        expect(text).toContain("4");        expect(result.isError).toBeFalsy();      }).pipe(Effect.scoped),    { timeout: 30_000 },  );});