MCP Accessibility Scanner

/** * Copyright (c) Microsoft Corporation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import { describe, it, expect } from 'vitest'; import { z } from 'zod'; import type { JSONSchema7 } from 'json-schema'; import { toMcpTool, defineToolSchema } from '../src/mcp/tool.js'; describe('mcp/tool', () => { it('toMcpTool converts readOnly tools with annotations', () => { const schema = defineToolSchema({ name: 'test_read', title: 'Test Read', description: 'Read-only tool', inputSchema: z.object({ url: z.string(), }), type: 'readOnly', }); const tool = toMcpTool(schema); expect(tool.name).toBe('test_read'); expect(tool.description).toBe('Read-only tool'); expect(tool.annotations?.title).toBe('Test Read'); expect(tool.annotations?.readOnlyHint).toBe(true); expect(tool.annotations?.destructiveHint).toBe(false); expect(tool.annotations?.openWorldHint).toBe(true); const jsonSchema = tool.inputSchema as JSONSchema7; expect(jsonSchema.type).toBe('object'); expect((jsonSchema.properties?.url as JSONSchema7)?.type).toBe('string'); }); it('toMcpTool sets destructiveHint for destructive tools', () => { const schema = defineToolSchema({ name: 'test_write', title: 'Test Write', description: 'Destructive tool', inputSchema: z.object({ value: z.number(), }), type: 'destructive', }); const tool = toMcpTool(schema); expect(tool.annotations?.readOnlyHint).toBe(false); expect(tool.annotations?.destructiveHint).toBe(true); }); it('defineToolSchema is identity helper', () => { const schema = defineToolSchema({ name: 'identity', title: 'Identity', description: 'Identity tool', inputSchema: z.object({}), type: 'readOnly', }); expect(schema.name).toBe('identity'); expect(schema.type).toBe('readOnly'); }); });