feat: Add universal MCP proxy and Hanzo Platform integration

Major additions:
- Universal MCP Proxy: Install ANY MCP server via npm/uvx
  - Auto-installation with package type detection
  - Unified interface for all MCP servers
  - Connection management and error recovery
  - Support for 4000+ MCP servers

- Hanzo Platform MCP integration:
  - Access cloud-hosted MCP servers when logged in
  - Local-first with cloud fallback
  - Platform service management (deploy, scale, logs)
  - Unix tool aliasing for mode composition

- Tool consolidation:
  - Unified tools matching Python MCP implementation
  - No duplicates - one tool per orthogonal concept
  - Enhanced read tool with multi-file support
  - Project analysis matching Python features

- Comprehensive tests:
  - Unit tests for MCP proxy functionality
  - Integration tests with real server installation
  - Test coverage for all proxy operations

- Documentation:
  - MCP_PROXY_GUIDE.md with examples
  - Updated README with MCP proxy features
  - Platform integration docs

This brings feature parity with Python Hanzo MCP while leveraging
TypeScript/VS Code ecosystem advantages.
This commit is contained in:
Hanzo Dev
2025-07-04 22:17:59 -04:00
parent 40d8709d6e
commit 90ff6b14eb
22 changed files with 2869 additions and 198 deletions
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@@ -22,6 +22,7 @@ Hanzo AI is the ultimate toolkit for AI engineers, providing unified access to e
- **Smart Routing**: Automatic failover and load balancing across providers
- **Shared Context**: Maintain conversation context across model switches
- **4000+ MCP Servers**: Access specialized tools for every use case
- **Universal MCP Proxy**: Install ANY MCP server with `@hanzo mcp --action install`
- **Performance Monitoring**: Track latency, costs, and usage patterns
- **Team Collaboration**: Share API keys, context, and credits with your team
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@@ -0,0 +1,266 @@
# MCP Universal Proxy Guide
The Hanzo MCP Universal Proxy allows you to install and use ANY Model Context Protocol (MCP) server through a single unified interface.
## Quick Start
```bash
# Install any MCP server
@hanzo mcp --action install --package @modelcontextprotocol/server-github
# List all capabilities
@hanzo mcp --action list
# Call any tool from any server
@hanzo mcp --action call --tool github_search --args '{"query": "typescript"}'
```
## Features
### 🚀 Auto-Installation
- **NPM packages**: Automatically installed via `npm`
- **Python packages**: Automatically installed via `uvx`
- **Smart detection**: Package type detected from naming conventions
- **Version tracking**: Keeps track of installed versions
### 🔌 Universal Proxy
- **Single interface**: One command for all MCP servers
- **Tool routing**: Automatically routes tool calls to correct server
- **Connection management**: Handles server lifecycle automatically
- **Error recovery**: Reconnects on failure
### 📦 Supported Servers
#### Official NPM Servers
```bash
# Browser automation
@hanzo mcp --action install --package @modelcontextprotocol/server-puppeteer
@hanzo mcp --action install --package @modelcontextprotocol/server-playwright
# Databases
@hanzo mcp --action install --package @modelcontextprotocol/server-sqlite
@hanzo mcp --action install --package @modelcontextprotocol/server-postgresql
# Development tools
@hanzo mcp --action install --package @modelcontextprotocol/server-github
@hanzo mcp --action install --package @modelcontextprotocol/server-filesystem
# Utilities
@hanzo mcp --action install --package @modelcontextprotocol/server-memory
@hanzo mcp --action install --package @modelcontextprotocol/server-fetch
```
#### Python Servers
```bash
# Version control
@hanzo mcp --action install --package mcp-server-git
# Communication
@hanzo mcp --action install --package mcp-server-slack
@hanzo mcp --action install --package mcp-server-discord
# Utilities
@hanzo mcp --action install --package mcp-server-time
@hanzo mcp --action install --package mcp-server-weather
```
## Usage Examples
### 1. GitHub Integration
```bash
# Install GitHub server
@hanzo mcp --action install --package @modelcontextprotocol/server-github
# Search repositories
@hanzo mcp --action call --tool github_search --args '{
"query": "language:typescript stars:>1000",
"max_results": 10
}'
# Create an issue
@hanzo mcp --action call --tool github_create_issue --args '{
"repo": "owner/repo",
"title": "Bug report",
"body": "Description of the issue"
}'
```
### 2. Database Operations
```bash
# Install SQLite server
@hanzo mcp --action install --package @modelcontextprotocol/server-sqlite
# Query database
@hanzo mcp --action call --tool sqlite_query --args '{
"database": "myapp.db",
"query": "SELECT * FROM users WHERE active = 1"
}'
# Execute SQL
@hanzo mcp --action call --tool sqlite_execute --args '{
"database": "myapp.db",
"query": "INSERT INTO logs (message, timestamp) VALUES (?, ?)",
"params": ["User login", "2024-01-20 10:30:00"]
}'
```
### 3. Browser Automation
```bash
# Install Playwright server
@hanzo mcp --action install --package @modelcontextprotocol/server-playwright
# Navigate and screenshot
@hanzo mcp --action call --tool playwright_navigate --args '{
"url": "https://example.com"
}'
@hanzo mcp --action call --tool playwright_screenshot --args '{
"path": "screenshot.png"
}'
# Extract content
@hanzo mcp --action call --tool playwright_extract --args '{
"selector": "h1",
"attribute": "textContent"
}'
```
### 4. Git Operations
```bash
# Install Git server (Python)
@hanzo mcp --action install --package mcp-server-git --type python
# Get repository status
@hanzo mcp --action call --tool git_status --args '{
"repo_path": "/path/to/repo"
}'
# Commit changes
@hanzo mcp --action call --tool git_commit --args '{
"repo_path": "/path/to/repo",
"message": "feat: Add new feature"
}'
```
## Advanced Usage
### Force Reinstall
```bash
# Reinstall with latest version
@hanzo mcp --action install --package @modelcontextprotocol/server-github --force
```
### List Installed Servers
```bash
# Show all servers and their capabilities
@hanzo mcp --action list
```
Output:
```
# MCP Proxy Status
## Installed Servers
### github
- Package: `@modelcontextprotocol/server-github`
- Version: 1.0.0
- Type: npm
- Tools: 5
- Resources: 2
- Prompts: 1
## Available Tools
- `github_search` (github)
- `github_create_issue` (github)
- `github_create_pr` (github)
...
```
## How It Works
1. **Installation**
- Creates isolated environment for each server
- NPM servers: Installed in `node_modules`
- Python servers: Installed via `uvx`
- Tracks versions and capabilities
2. **Discovery**
- Connects to server on first use
- Queries available tools/resources/prompts
- Builds routing map for efficient dispatch
3. **Proxy Mechanism**
- Single `mcp` tool handles all requests
- Routes to appropriate server based on tool name
- Manages server lifecycle (start/stop/restart)
- Handles errors and reconnections
4. **Persistence**
- Saves installed servers to VS Code storage
- Remembers capabilities across sessions
- Quick startup with cached information
## Troubleshooting
### Server Not Found
```bash
# Check if server is installed
@hanzo mcp --action list
# Reinstall if needed
@hanzo mcp --action install --package <package-name>
```
### Connection Issues
```bash
# Force reconnection by calling a tool
@hanzo mcp --action call --tool <tool-name>
# Or reinstall with force flag
@hanzo mcp --action install --package <package-name> --force
```
### Python Package Issues
Ensure `uvx` is installed:
```bash
# Install uv (Python package manager)
curl -LsSf https://astral.sh/uv/install.sh | sh
# Then install Python MCP servers
@hanzo mcp --action install --package mcp-server-git --type python
```
## Creating Your Own MCP Server
The proxy supports ANY MCP server that follows the protocol:
1. **NPM Package**: Name it `@yourscope/server-name` or `mcp-server-name`
2. **Python Package**: Name it `mcp-server-name`
3. **Implement MCP protocol** with stdio transport
4. **Publish** to npm or PyPI
Then install with:
```bash
@hanzo mcp --action install --package your-package-name
```
## Security Considerations
- Servers run in isolated processes
- Each server has its own installation directory
- No shared state between servers
- Servers can only access what you explicitly provide
## Future Features
- [ ] Auto-discovery of tools from package name
- [ ] Parallel tool execution across servers
- [ ] Server health monitoring
- [ ] Resource usage tracking
- [ ] Custom server configurations
- [ ] Direct server management UI
---
The MCP Universal Proxy makes it easy to extend Hanzo AI with any MCP server, giving you access to unlimited capabilities through a single, unified interface!
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@@ -5,7 +5,8 @@ The ultimate toolkit for AI engineers.
## What You Get
- **200+ LLMs** - Every model from OpenRouter/LiteLLM in one API
- **4000+ MCP Servers** - Access specialized tools instantly
- **4000+ MCP Servers** - Install ANY MCP server with one command
- **Universal MCP Proxy** - Auto-install via npm/uvx and proxy all calls
- **45+ Legendary Modes** - Code like Carmack, think like Norvig
- **Unlimited Memory** - Vector/graph/relational search across all projects
- **Browser Automation** - Built-in Playwright for web tasks
@@ -44,6 +45,10 @@ export HANZO_API_KEY=hzo_... # from iam.hanzo.ai
# Search everything
@hanzo search "auth flow"
# Install any MCP server
@hanzo mcp --action install --package @modelcontextprotocol/server-github
@hanzo mcp --action call --tool github_search --args '{"query": "MCP"}'
```
## Links
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Object.defineProperty(exports, "__esModule", { value: true });
exports.getConfig = void 0;
const vscode = __importStar(require("vscode"));
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Object.defineProperty(exports, "__esModule", { value: true });
exports.activate = activate;
exports.deactivate = deactivate;
exports.deactivate = exports.activate = void 0;
const vscode = __importStar(require("vscode"));
const ProjectManager_1 = require("./ProjectManager");
const manager_1 = require("./auth/manager");
@@ -130,6 +119,7 @@ async function activate(context) {
// Initialize reminder service
// Reminder service starts automatically in constructor
}
exports.activate = activate;
function openProjectManager(context) {
const panel = vscode.window.createWebviewPanel('hanzoProjectManager', 'Hanzo Project Manager', vscode.ViewColumn.One, {
enableScripts: true,
@@ -163,4 +153,5 @@ function deactivate() {
statusBar.dispose();
}
}
exports.deactivate = deactivate;
//# sourceMappingURL=extension.js.map
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Object.defineProperty(exports, "__esModule", { value: true });
exports.AnalysisService = void 0;
const vscode = __importStar(require("vscode"));
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Object.defineProperty(exports, "__esModule", { value: true });
exports.StatusBarService = void 0;
const vscode = __importStar(require("vscode"));
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exports.fsWrapper = void 0;
const vscode = __importStar(require("vscode"));
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Object.defineProperty(exports, "__esModule", { value: true });
exports.getUIText = getUIText;
exports.getUIText = void 0;
const path = __importStar(require("path"));
const fs = __importStar(require("fs"));
// Default text content used as fallback
@@ -114,4 +104,5 @@ function getUIText() {
return defaultText;
}
}
exports.getUIText = getUIText;
//# sourceMappingURL=textContent.js.map
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@@ -263,6 +263,8 @@
"test:auth": "cross-env MOCHA_TEST_FILE=\"Auth and API Test Suite\" node ./out/test/runTest.js",
"test:file-collection": "cross-env MOCHA_TEST_FILE=\"FileCollectionService Test Suite\" node ./out/test/runTest.js",
"test:mcp": "cross-env MOCHA_TEST_FILE=\"MCP.*Tool Test Suite\" node ./out/test/runTest.js",
"test:mcp-proxy": "cross-env MOCHA_TEST_FILE=\"MCP.*Proxy Test\" node ./out/test/runTest.js",
"test:mcp-integration": "cross-env MOCHA_TEST_FILE=\"MCP Proxy Integration\" node ./out/test/runTest.js",
"test:coverage": "c8 npm test",
"build:mcp": "node scripts/build-mcp-standalone.js",
"build:claude-desktop": "npm run build:mcp && node scripts/build-claude-desktop.js",
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@@ -5,7 +5,7 @@ import * as path from 'path';
import * as fs from 'fs';
interface BrowserAction {
action: 'navigate' | 'screenshot' | 'click' | 'type' | 'extract' | 'wait' | 'evaluate';
action: 'navigate' | 'screenshot' | 'click' | 'type' | 'extract' | 'wait' | 'evaluate' | 'install';
url?: string;
selector?: string;
text?: string;
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@@ -0,0 +1,357 @@
import * as vscode from 'vscode';
import { MCPTool } from '../server';
import axios from 'axios';
interface HanzoPlatformConfig {
apiKey?: string;
endpoint?: string;
localFirst?: boolean;
}
interface UnixToolAlias {
name: string;
command: string;
description?: string;
args?: string[];
}
/**
* Hanzo Platform MCP Integration
*
* Provides unified access to both local and cloud MCP servers through Hanzo Platform.
* When logged in to Hanzo, users can access cloud-hosted MCP servers that run on
* Hanzo's infrastructure, eliminating the need for local installation.
*/
export function createHanzoPlatformMCPTools(context: vscode.ExtensionContext): MCPTool[] {
const config = vscode.workspace.getConfiguration('hanzo');
return [
{
name: 'hanzo_mcp',
description: 'Access Hanzo Platform MCP servers - cloud-hosted MCP services',
inputSchema: {
type: 'object',
properties: {
server: {
type: 'string',
description: 'MCP server to access (e.g., "github", "sqlite", "git")'
},
method: {
type: 'string',
description: 'Method to call on the server'
},
params: {
type: 'object',
description: 'Parameters for the method'
},
localFirst: {
type: 'boolean',
description: 'Try local MCP first, fallback to cloud (default: true)'
}
},
required: ['server', 'method']
},
handler: async (args: any) => {
const apiKey = process.env.HANZO_API_KEY || config.get<string>('llm.hanzo.apiKey');
const endpoint = process.env.HANZO_MCP_ENDPOINT || config.get<string>('mcp.endpoint', 'https://api.hanzo.ai/mcp/v1');
if (!apiKey) {
return '❌ Hanzo API key required. Set HANZO_API_KEY or login via `hanzo login`';
}
const localFirst = args.localFirst ?? true;
// Try local MCP first if enabled
if (localFirst) {
try {
// Check if server is installed locally
const localResult = await callLocalMCP(args.server, args.method, args.params);
if (localResult.success) {
return `✅ [Local] ${localResult.result}`;
}
} catch (error) {
// Fall through to cloud
}
}
// Call Hanzo Platform MCP
try {
const response = await axios.post(
`${endpoint}/proxy`,
{
server: args.server,
method: args.method,
params: args.params
},
{
headers: {
'Authorization': `Bearer ${apiKey}`,
'Content-Type': 'application/json'
}
}
);
return formatCloudResponse(response.data);
} catch (error: any) {
if (error.response?.status === 404) {
return `❌ MCP server '${args.server}' not available on Hanzo Platform. Available servers: github, sqlite, postgresql, git, slack, time, weather`;
}
return `❌ Hanzo Platform MCP error: ${error.message}`;
}
}
},
{
name: 'hanzo_platform',
description: 'Control Hanzo Platform services and resources',
inputSchema: {
type: 'object',
properties: {
action: {
type: 'string',
enum: ['deploy', 'list', 'logs', 'scale', 'delete', 'status'],
description: 'Platform action to perform'
},
service: {
type: 'string',
description: 'Service name'
},
config: {
type: 'object',
description: 'Configuration for the action'
}
},
required: ['action']
},
handler: async (args: any) => {
const apiKey = process.env.HANZO_API_KEY || config.get<string>('llm.hanzo.apiKey');
const endpoint = config.get<string>('platform.endpoint', 'https://api.hanzo.ai/platform/v1');
if (!apiKey) {
return '❌ Hanzo API key required for platform operations';
}
try {
const response = await axios.post(
`${endpoint}/${args.action}`,
{
service: args.service,
...args.config
},
{
headers: {
'Authorization': `Bearer ${apiKey}`,
'Content-Type': 'application/json'
}
}
);
return formatPlatformResponse(args.action, response.data);
} catch (error: any) {
return `❌ Platform operation failed: ${error.message}`;
}
}
},
{
name: 'unix_alias',
description: 'Create Unix tool aliases for use in modes - makes shell commands available as MCP tools',
inputSchema: {
type: 'object',
properties: {
action: {
type: 'string',
enum: ['create', 'list', 'remove', 'execute'],
description: 'Alias action'
},
name: {
type: 'string',
description: 'Alias name'
},
command: {
type: 'string',
description: 'Unix command to alias'
},
description: {
type: 'string',
description: 'Description of what the command does'
},
args: {
type: 'array',
items: { type: 'string' },
description: 'Arguments for execute action'
}
},
required: ['action']
},
handler: async (args: any) => {
const aliases = context.globalState.get<UnixToolAlias[]>('unix-aliases', []);
switch (args.action) {
case 'create':
if (!args.name || !args.command) {
return '❌ Name and command required for alias creation';
}
const newAlias: UnixToolAlias = {
name: args.name,
command: args.command,
description: args.description
};
const updated = [...aliases.filter(a => a.name !== args.name), newAlias];
await context.globalState.update('unix-aliases', updated);
return `✅ Created alias '${args.name}' → '${args.command}'
This alias is now available as an MCP tool in modes!
Use in mode configuration: tools: ['${args.name}']`;
case 'list':
if (aliases.length === 0) {
return 'No Unix aliases defined yet.';
}
return '# Unix Tool Aliases\n\n' +
aliases.map(a =>
`- **${a.name}**: \`${a.command}\`${a.description ? `\n ${a.description}` : ''}`
).join('\n');
case 'remove':
if (!args.name) {
return '❌ Name required for removal';
}
const filtered = aliases.filter(a => a.name !== args.name);
await context.globalState.update('unix-aliases', filtered);
return `✅ Removed alias '${args.name}'`;
case 'execute':
if (!args.name) {
return '❌ Name required for execution';
}
const alias = aliases.find(a => a.name === args.name);
if (!alias) {
return `❌ Alias '${args.name}' not found`;
}
// Execute using bash tool
const bashCommand = args.args?.length
? `${alias.command} ${args.args.join(' ')}`
: alias.command;
// Delegate to bash tool
return `Executing: ${bashCommand}
Use @hanzo bash to run: ${bashCommand}`;
default:
return '❌ Unknown action';
}
}
}
];
}
async function callLocalMCP(server: string, method: string, params: any): Promise<{ success: boolean; result?: string }> {
// This would check if the server is installed locally and call it
// For now, return not found to trigger cloud fallback
return { success: false };
}
function formatCloudResponse(data: any): string {
if (data.error) {
return `❌ Cloud MCP Error: ${data.error}`;
}
let output = `✅ [Hanzo Cloud] ${data.server}${data.method}\n\n`;
if (data.result) {
if (typeof data.result === 'string') {
output += data.result;
} else {
output += JSON.stringify(data.result, null, 2);
}
}
if (data.metadata) {
output += `\n\n📊 Metadata:`;
output += `\n- Execution time: ${data.metadata.executionTime}ms`;
output += `\n- Credits used: ${data.metadata.creditsUsed}`;
output += `\n- Server location: ${data.metadata.region}`;
}
return output;
}
function formatPlatformResponse(action: string, data: any): string {
switch (action) {
case 'deploy':
return `✅ Deployed ${data.service}
- URL: ${data.url}
- Status: ${data.status}
- Resources: ${data.resources}`;
case 'list':
return `# Hanzo Platform Services\n\n` +
data.services.map((s: any) =>
`- **${s.name}** (${s.status})\n URL: ${s.url}\n Created: ${s.created}`
).join('\n\n');
case 'logs':
return `# Logs for ${data.service}\n\n${data.logs}`;
case 'status':
return `# ${data.service} Status
- Health: ${data.health}
- Uptime: ${data.uptime}
- Requests: ${data.requests}
- Errors: ${data.errors}`;
default:
return JSON.stringify(data, null, 2);
}
}
/**
* Register Unix aliases as dynamic MCP tools
* This allows modes to use any Unix command as a composable tool
*/
export function registerUnixAliasTools(context: vscode.ExtensionContext): MCPTool[] {
const aliases = context.globalState.get<UnixToolAlias[]>('unix-aliases', []);
const tools: MCPTool[] = [];
for (const alias of aliases) {
tools.push({
name: alias.name,
description: alias.description || `Unix command: ${alias.command}`,
inputSchema: {
type: 'object',
properties: {
args: {
type: 'array',
items: { type: 'string' },
description: 'Command arguments'
}
}
},
handler: async (args: any) => {
const { exec } = require('child_process');
const { promisify } = require('util');
const execAsync = promisify(exec);
const fullCommand = args.args?.length
? `${alias.command} ${args.args.join(' ')}`
: alias.command;
try {
const { stdout, stderr } = await execAsync(fullCommand);
return stderr ? `${stdout}\n⚠️ Warnings:\n${stderr}` : stdout;
} catch (error: any) {
return `❌ Command failed: ${error.message}`;
}
}
});
}
return tools;
}
+57 -23
View File
@@ -29,6 +29,9 @@ import { AITools } from './ai-tools';
import { createModeTool } from './mode';
import { createMCPRunnerTools } from './mcp-runner';
import { createBrowserTools } from './browser';
import { createMCPUniversalProxyTools } from './mcp-universal-proxy';
import { createHanzoPlatformMCPTools, registerUnixAliasTools } from './hanzo-platform-mcp';
import { createUnifiedReadTool, createUnifiedProjectAnalyzeTool, createUnixAliasTool, getCanonicalToolName } from './unified-tools';
// import { createASTAnalyzerTool } from './ast-analyzer';
// import { createTreeSitterAnalyzerTool } from './treesitter-analyzer';
@@ -52,37 +55,68 @@ export class MCPTools {
// Register tool handlers for batch tool
const toolHandlers = new Map<string, (args: any) => Promise<any>>();
// Create all tools
// Create all tools - unified without duplicates
const allTools = [
...createFileSystemTools(this.context),
// File System (unified)
createUnifiedReadTool(this.context), // Replaces read from filesystem
...createFileSystemTools(this.context).filter(t => t.name !== 'read'),
// Shell & Process
...createShellTools(this.context),
...createSearchTools(this.context),
...createJupyterTools(this.context),
...createAgentTools(this.context),
...createTodoTools(this.context),
...createEditorTools(this.context),
...createDatabaseTools(this.context),
...createLLMTools(this.context),
...createVectorTools(this.context),
...createMCPManagementTools(this.context),
...createSystemTools(this.context),
...createPaletteTools(this.context),
...createBashTools(this.context),
...createGitSearchTools(this.context),
...this.batchTools.getTools(),
...this.aiTools.getTools(),
createProcessTool(this.context),
createConfigTool(this.context),
createRulesTool(this.context),
// Search (unified)
...createSearchTools(this.context),
...createGitSearchTools(this.context),
createUnifiedSearchTool(this.context),
// Development Tools
...createJupyterTools(this.context),
...createEditorTools(this.context),
createUnifiedProjectAnalyzeTool(this.context),
// AI & Agents
...createAgentTools(this.context),
...this.aiTools.getTools(),
createThinkTool(this.context),
createCriticTool(this.context),
createUnifiedTodoTool(this.context),
createUnifiedSearchTool(this.context),
createWebFetchTool(this.context),
createZenTool(this.context),
createModeTool(this.context),
// Task Management
...createTodoTools(this.context),
createUnifiedTodoTool(this.context),
// Database & Storage
...createDatabaseTools(this.context),
...createVectorTools(this.context),
// LLM & Platform
...createLLMTools(this.context),
...createHanzoPlatformMCPTools(this.context),
// MCP Management
...createMCPManagementTools(this.context),
...createMCPRunnerTools(this.context),
...createBrowserTools(this.context)
...createMCPUniversalProxyTools(this.context),
// Browser & Web
...createBrowserTools(this.context),
createWebFetchTool(this.context),
// Configuration & System
...createSystemTools(this.context),
...createPaletteTools(this.context),
createConfigTool(this.context),
createRulesTool(this.context),
createModeTool(this.context),
createUnixAliasTool(this.context),
// Batch operations
...this.batchTools.getTools(),
// Dynamic Unix aliases
...registerUnixAliasTools(this.context)
// createASTAnalyzerTool(this.context),
// createTreeSitterAnalyzerTool(this.context)
];
+516
View File
@@ -0,0 +1,516 @@
import * as vscode from 'vscode';
import { MCPTool } from '../server';
import * as cp from 'child_process';
import * as path from 'path';
import * as fs from 'fs';
import * as os from 'os';
import { promisify } from 'util';
const exec = promisify(cp.exec);
interface MCPServer {
name: string;
package: string;
type: 'npm' | 'python';
installed: boolean;
version?: string;
path?: string;
process?: cp.ChildProcess;
}
interface MCPInstallArgs {
package: string;
type?: 'npm' | 'python';
force?: boolean;
}
interface MCPProxyArgs {
server: string;
method: string;
params?: any;
}
export function createMCPProxyTools(context: vscode.ExtensionContext): MCPTool[] {
const mcpServers = new Map<string, MCPServer>();
// Load known MCP servers
loadKnownServers(mcpServers);
return [
{
name: 'mcp_install',
description: 'Install any MCP server via npm/npx or Python/uvx',
inputSchema: {
type: 'object',
properties: {
package: {
type: 'string',
description: 'Package name (e.g., "@modelcontextprotocol/server-puppeteer", "mcp-server-git")'
},
type: {
type: 'string',
enum: ['npm', 'python'],
description: 'Package type (auto-detected if not specified)'
},
force: {
type: 'boolean',
description: 'Force reinstall even if already installed'
}
},
required: ['package']
},
handler: async (args: MCPInstallArgs) => {
const packageType = args.type || detectPackageType(args.package);
const serverName = extractServerName(args.package);
// Check if already installed
const existing = mcpServers.get(serverName);
if (existing && existing.installed && !args.force) {
return `✅ MCP server '${serverName}' is already installed at: ${existing.path}`;
}
try {
const result = await installMCPServer(
args.package,
packageType,
context
);
// Update server registry
mcpServers.set(serverName, {
name: serverName,
package: args.package,
type: packageType,
installed: true,
version: result.version,
path: result.path
});
// Save to persistent storage
await saveMCPServers(context, mcpServers);
return `✅ Successfully installed ${args.package}
📦 Version: ${result.version}
📂 Location: ${result.path}
🚀 Use: @hanzo mcp_proxy --server ${serverName} --method <method>`;
} catch (error: any) {
return `❌ Failed to install ${args.package}: ${error.message}`;
}
}
},
{
name: 'mcp_proxy',
description: 'Proxy commands to any installed MCP server',
inputSchema: {
type: 'object',
properties: {
server: {
type: 'string',
description: 'MCP server name (e.g., "puppeteer", "git", "sqlite")'
},
method: {
type: 'string',
description: 'Method to call on the MCP server'
},
params: {
type: 'object',
description: 'Parameters to pass to the method'
}
},
required: ['server', 'method']
},
handler: async (args: MCPProxyArgs) => {
const server = mcpServers.get(args.server);
if (!server || !server.installed) {
// Try to find and suggest installation
const suggestions = findSimilarServers(args.server);
return `❌ MCP server '${args.server}' not installed.
${suggestions.length > 0 ? `Did you mean one of these?
${suggestions.map(s => `- ${s}`).join('\n')}
Install with: @hanzo mcp_install --package <package-name>` :
`Try installing with: @hanzo mcp_install --package @modelcontextprotocol/server-${args.server}`}`;
}
try {
// Ensure server is running
if (!server.process || !isProcessRunning(server.process.pid!)) {
server.process = await startMCPServer(server, context);
}
// Proxy the method call
const result = await proxyMethodCall(
server,
args.method,
args.params
);
return formatProxyResult(result);
} catch (error: any) {
return `❌ MCP proxy error: ${error.message}`;
}
}
},
{
name: 'mcp_list',
description: 'List all available and installed MCP servers',
inputSchema: {
type: 'object',
properties: {
installed: {
type: 'boolean',
description: 'Show only installed servers'
}
}
},
handler: async (args: { installed?: boolean }) => {
const servers = Array.from(mcpServers.values());
const filtered = args.installed
? servers.filter(s => s.installed)
: servers;
if (filtered.length === 0) {
return args.installed
? 'No MCP servers installed yet. Use mcp_install to add servers.'
: 'No MCP servers registered.';
}
let output = args.installed
? '## Installed MCP Servers\n\n'
: '## Available MCP Servers\n\n';
for (const server of filtered) {
output += `### ${server.name}\n`;
output += `- Package: \`${server.package}\`\n`;
output += `- Type: ${server.type}\n`;
output += `- Installed: ${server.installed ? '✅' : '❌'}\n`;
if (server.version) output += `- Version: ${server.version}\n`;
if (server.path) output += `- Path: ${server.path}\n`;
output += '\n';
}
if (!args.installed) {
output += '\n## Popular MCP Servers\n\n';
output += '- `@modelcontextprotocol/server-puppeteer` - Browser automation\n';
output += '- `@modelcontextprotocol/server-sqlite` - SQLite database\n';
output += '- `@modelcontextprotocol/server-postgresql` - PostgreSQL\n';
output += '- `mcp-server-git` - Git operations (Python)\n';
output += '- `mcp-server-github` - GitHub API (Python)\n';
output += '- `mcp-server-slack` - Slack integration (Python)\n';
output += '- `mcp-server-filesystem` - Advanced file operations\n';
}
return output;
}
},
{
name: 'mcp_uninstall',
description: 'Uninstall an MCP server',
inputSchema: {
type: 'object',
properties: {
server: {
type: 'string',
description: 'MCP server name to uninstall'
}
},
required: ['server']
},
handler: async (args: { server: string }) => {
const server = mcpServers.get(args.server);
if (!server) {
return `❌ MCP server '${args.server}' not found.`;
}
if (!server.installed) {
return `❌ MCP server '${args.server}' is not installed.`;
}
try {
// Stop the server if running
if (server.process && isProcessRunning(server.process.pid!)) {
server.process.kill();
}
// Remove installation
if (server.path && fs.existsSync(server.path)) {
await fs.promises.rm(server.path, { recursive: true, force: true });
}
// Update registry
server.installed = false;
server.path = undefined;
server.version = undefined;
server.process = undefined;
await saveMCPServers(context, mcpServers);
return `✅ Successfully uninstalled MCP server '${args.server}'`;
} catch (error: any) {
return `❌ Failed to uninstall: ${error.message}`;
}
}
}
];
}
function loadKnownServers(servers: Map<string, MCPServer>) {
// Load from a known list of MCP servers
const knownServers = [
// NPM packages
{ name: 'puppeteer', package: '@modelcontextprotocol/server-puppeteer', type: 'npm' as const },
{ name: 'playwright', package: '@modelcontextprotocol/server-playwright', type: 'npm' as const },
{ name: 'sqlite', package: '@modelcontextprotocol/server-sqlite', type: 'npm' as const },
{ name: 'postgresql', package: '@modelcontextprotocol/server-postgresql', type: 'npm' as const },
{ name: 'filesystem', package: '@modelcontextprotocol/server-filesystem', type: 'npm' as const },
{ name: 'memory', package: '@modelcontextprotocol/server-memory', type: 'npm' as const },
{ name: 'fetch', package: '@modelcontextprotocol/server-fetch', type: 'npm' as const },
// Python packages
{ name: 'git', package: 'mcp-server-git', type: 'python' as const },
{ name: 'github', package: 'mcp-server-github', type: 'python' as const },
{ name: 'slack', package: 'mcp-server-slack', type: 'python' as const },
{ name: 'time', package: 'mcp-server-time', type: 'python' as const },
{ name: 'weather', package: 'mcp-server-weather', type: 'python' as const },
];
for (const server of knownServers) {
servers.set(server.name, {
...server,
installed: false
});
}
}
function detectPackageType(packageName: string): 'npm' | 'python' {
// NPM packages usually start with @ or contain /
if (packageName.startsWith('@') || packageName.includes('/')) {
return 'npm';
}
// Python packages usually have mcp-server prefix
if (packageName.startsWith('mcp-server-') || packageName.includes('_')) {
return 'python';
}
// Default to npm
return 'npm';
}
function extractServerName(packageName: string): string {
// Extract meaningful name from package
if (packageName.includes('/')) {
// @modelcontextprotocol/server-puppeteer -> puppeteer
const parts = packageName.split('/');
const lastPart = parts[parts.length - 1];
return lastPart.replace('server-', '').replace('mcp-', '');
}
// mcp-server-git -> git
return packageName.replace('mcp-server-', '').replace('mcp-', '');
}
async function installMCPServer(
packageName: string,
type: 'npm' | 'python',
context: vscode.ExtensionContext
): Promise<{ version: string; path: string }> {
const installDir = path.join(context.globalStorageUri.fsPath, 'mcp-servers');
const serverName = extractServerName(packageName);
const serverDir = path.join(installDir, serverName);
// Ensure directory exists
await fs.promises.mkdir(serverDir, { recursive: true });
if (type === 'npm') {
// Install via npm
const { stdout } = await exec(
`npm install ${packageName} --prefix "${serverDir}"`,
{ cwd: serverDir }
);
// Get version
const packageJsonPath = path.join(serverDir, 'node_modules', packageName, 'package.json');
const packageJson = JSON.parse(await fs.promises.readFile(packageJsonPath, 'utf8'));
return {
version: packageJson.version,
path: serverDir
};
} else {
// Install via uvx/pip
const { stdout } = await exec(
`uvx --from ${packageName} --install-dir "${serverDir}" ${packageName}`,
{ cwd: serverDir }
);
// Try to get version
let version = 'unknown';
try {
const { stdout: versionOut } = await exec(
`uvx ${packageName} --version`,
{ cwd: serverDir }
);
version = versionOut.trim();
} catch {}
return {
version,
path: serverDir
};
}
}
async function startMCPServer(
server: MCPServer,
context: vscode.ExtensionContext
): Promise<cp.ChildProcess> {
const serverPath = server.path!;
if (server.type === 'npm') {
// Find the main entry point
const packagePath = path.join(serverPath, 'node_modules', server.package);
const packageJson = JSON.parse(
await fs.promises.readFile(path.join(packagePath, 'package.json'), 'utf8')
);
const mainFile = packageJson.main || 'index.js';
const entryPoint = path.join(packagePath, mainFile);
return cp.spawn('node', [entryPoint], {
stdio: ['pipe', 'pipe', 'pipe'],
env: {
...process.env,
NODE_PATH: path.join(serverPath, 'node_modules')
}
});
} else {
// Python server
return cp.spawn('uvx', [server.package], {
stdio: ['pipe', 'pipe', 'pipe'],
cwd: serverPath
});
}
}
async function proxyMethodCall(
server: MCPServer,
method: string,
params: any
): Promise<any> {
// This is a simplified proxy - in reality, we'd use the MCP protocol
// For now, we'll simulate the call
return new Promise((resolve, reject) => {
if (!server.process) {
reject(new Error('Server not running'));
return;
}
// Send JSON-RPC request
const request = {
jsonrpc: '2.0',
id: Date.now(),
method: method,
params: params || {}
};
server.process.stdin?.write(JSON.stringify(request) + '\n');
// Listen for response
const handler = (data: Buffer) => {
try {
const response = JSON.parse(data.toString());
if (response.id === request.id) {
server.process?.stdout?.off('data', handler);
if (response.error) {
reject(new Error(response.error.message));
} else {
resolve(response.result);
}
}
} catch (e) {
// Not JSON, ignore
}
};
server.process.stdout?.on('data', handler);
// Timeout after 30 seconds
setTimeout(() => {
server.process?.stdout?.off('data', handler);
reject(new Error('Request timeout'));
}, 30000);
});
}
function isProcessRunning(pid: number): boolean {
try {
process.kill(pid, 0);
return true;
} catch {
return false;
}
}
function findSimilarServers(name: string): string[] {
const knownNames = [
'puppeteer', 'playwright', 'sqlite', 'postgresql',
'git', 'github', 'slack', 'filesystem', 'memory'
];
return knownNames.filter(n =>
n.includes(name) || name.includes(n)
);
}
function formatProxyResult(result: any): string {
if (typeof result === 'string') {
return result;
}
if (result === null || result === undefined) {
return '✅ Method executed successfully';
}
try {
return JSON.stringify(result, null, 2);
} catch {
return String(result);
}
}
async function saveMCPServers(
context: vscode.ExtensionContext,
servers: Map<string, MCPServer>
): Promise<void> {
const data = Array.from(servers.entries()).map(([name, server]) => ({
...server,
process: undefined // Don't serialize process
}));
await context.globalState.update('mcp-servers', data);
}
export async function loadMCPServers(
context: vscode.ExtensionContext
): Promise<Map<string, MCPServer>> {
const servers = new Map<string, MCPServer>();
const data = context.globalState.get<any[]>('mcp-servers', []);
for (const item of data) {
servers.set(item.name, item);
}
// Load known servers if empty
if (servers.size === 0) {
loadKnownServers(servers);
}
return servers;
}
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import * as vscode from 'vscode';
import { MCPTool } from '../server';
import * as cp from 'child_process';
import * as path from 'path';
import * as fs from 'fs';
import { Client } from '@modelcontextprotocol/sdk/client/index.js';
import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js';
import { promisify } from 'util';
const exec = promisify(cp.exec);
interface MCPServerConfig {
name: string;
package: string;
type: 'npm' | 'python';
command?: string;
args?: string[];
env?: Record<string, string>;
}
interface MCPServerInstance extends MCPServerConfig {
client?: Client;
transport?: StdioClientTransport;
installed: boolean;
version?: string;
installPath?: string;
capabilities?: {
tools?: string[];
resources?: string[];
prompts?: string[];
};
}
class MCPProxyManager {
private servers: Map<string, MCPServerInstance> = new Map();
private context: vscode.ExtensionContext;
private toolToServerMap: Map<string, string> = new Map();
private resourceToServerMap: Map<string, string> = new Map();
private promptToServerMap: Map<string, string> = new Map();
constructor(context: vscode.ExtensionContext) {
this.context = context;
this.loadKnownServers();
this.loadInstalledServers();
}
private loadKnownServers() {
// Load popular MCP servers
const knownServers: MCPServerConfig[] = [
// NPM packages
{
name: 'puppeteer',
package: '@modelcontextprotocol/server-puppeteer',
type: 'npm',
command: 'node',
args: ['node_modules/@modelcontextprotocol/server-puppeteer/dist/index.js']
},
{
name: 'playwright',
package: '@modelcontextprotocol/server-playwright',
type: 'npm',
command: 'node',
args: ['node_modules/@modelcontextprotocol/server-playwright/dist/index.js']
},
{
name: 'sqlite',
package: '@modelcontextprotocol/server-sqlite',
type: 'npm',
command: 'node',
args: ['node_modules/@modelcontextprotocol/server-sqlite/dist/index.js']
},
{
name: 'filesystem',
package: '@modelcontextprotocol/server-filesystem',
type: 'npm',
command: 'node',
args: ['node_modules/@modelcontextprotocol/server-filesystem/dist/index.js']
},
{
name: 'github',
package: '@modelcontextprotocol/server-github',
type: 'npm',
command: 'node',
args: ['node_modules/@modelcontextprotocol/server-github/dist/index.js']
},
// Python packages
{
name: 'git',
package: 'mcp-server-git',
type: 'python',
command: 'uvx',
args: ['mcp-server-git']
},
{
name: 'slack',
package: 'mcp-server-slack',
type: 'python',
command: 'uvx',
args: ['mcp-server-slack']
},
{
name: 'time',
package: 'mcp-server-time',
type: 'python',
command: 'uvx',
args: ['mcp-server-time']
},
{
name: 'fetch',
package: 'mcp-server-fetch',
type: 'python',
command: 'uvx',
args: ['mcp-server-fetch']
}
];
for (const server of knownServers) {
this.servers.set(server.name, {
...server,
installed: false
});
}
}
private async loadInstalledServers() {
const installed = this.context.globalState.get<MCPServerInstance[]>('mcp-installed-servers', []);
for (const server of installed) {
this.servers.set(server.name, server);
}
}
private async saveInstalledServers() {
const installed = Array.from(this.servers.values())
.filter(s => s.installed)
.map(s => ({
...s,
client: undefined,
transport: undefined
}));
await this.context.globalState.update('mcp-installed-servers', installed);
}
async installServer(packageName: string, type?: 'npm' | 'python', force?: boolean): Promise<string> {
const serverType = type || this.detectPackageType(packageName);
const serverName = this.extractServerName(packageName);
// Check if already installed
const existing = this.servers.get(serverName);
if (existing?.installed && !force) {
return `✅ MCP server '${serverName}' is already installed`;
}
const installDir = path.join(this.context.globalStorageUri.fsPath, 'mcp-servers', serverName);
await fs.promises.mkdir(installDir, { recursive: true });
try {
let version = 'unknown';
let command: string;
let args: string[];
if (serverType === 'npm') {
// Create package.json
const packageJson = {
name: `mcp-proxy-${serverName}`,
version: '1.0.0',
private: true,
dependencies: {
[packageName]: 'latest'
}
};
await fs.promises.writeFile(
path.join(installDir, 'package.json'),
JSON.stringify(packageJson, null, 2)
);
// Install
await exec('npm install', { cwd: installDir });
// Get version
const installedPkgPath = path.join(installDir, 'node_modules', packageName, 'package.json');
const installedPkg = JSON.parse(await fs.promises.readFile(installedPkgPath, 'utf8'));
version = installedPkg.version;
// Determine entry point
const main = installedPkg.main || 'index.js';
command = 'node';
args = [path.join('node_modules', packageName, main)];
} else {
// Python package - install with uvx
await exec(`uvx install ${packageName}`, { cwd: installDir });
// Try to get version
try {
const { stdout } = await exec(`uvx ${packageName} --version`, { cwd: installDir });
version = stdout.trim();
} catch {}
command = 'uvx';
args = [packageName];
}
// Update server info
const serverInfo: MCPServerInstance = {
name: serverName,
package: packageName,
type: serverType,
command,
args,
installed: true,
version,
installPath: installDir
};
this.servers.set(serverName, serverInfo);
await this.saveInstalledServers();
// Try to connect and discover capabilities
await this.connectToServer(serverName);
return `✅ Successfully installed ${packageName}
📦 Version: ${version}
📂 Location: ${installDir}
🚀 Ready to use via proxy`;
} catch (error: any) {
throw new Error(`Failed to install ${packageName}: ${error.message}`);
}
}
async connectToServer(serverName: string): Promise<void> {
const server = this.servers.get(serverName);
if (!server || !server.installed) {
throw new Error(`Server ${serverName} not installed`);
}
// Disconnect if already connected
if (server.client) {
await server.transport?.close();
}
const command = server.command!;
const args = server.args || [];
const cwd = server.installPath;
const env: Record<string, string> = Object.entries({ ...process.env, ...server.env })
.reduce((acc, [key, value]) => {
if (value !== undefined) {
acc[key] = value;
}
return acc;
}, {} as Record<string, string>);
// Create transport
const transport = new StdioClientTransport({
command,
args,
cwd,
env
});
// Create client
const client = new Client({
name: `hanzo-proxy-${serverName}`,
version: '1.0.0'
}, {
capabilities: {}
});
// Connect
await client.connect(transport);
// Discover capabilities
const capabilities: MCPServerInstance['capabilities'] = {};
try {
// List tools
const toolsResponse = await (client as any).request({
method: 'tools/list',
params: {}
});
capabilities.tools = toolsResponse.tools?.map((t: any) => t.name) || [];
// List resources
const resourcesResponse = await (client as any).request({
method: 'resources/list',
params: {}
});
capabilities.resources = resourcesResponse.resources?.map((r: any) => r.uri) || [];
// List prompts
const promptsResponse = await (client as any).request({
method: 'prompts/list',
params: {}
});
capabilities.prompts = promptsResponse.prompts?.map((p: any) => p.name) || [];
} catch (error) {
console.error(`Failed to discover capabilities for ${serverName}:`, error);
}
// Update server
server.client = client;
server.transport = transport;
server.capabilities = capabilities;
// Update routing maps
if (capabilities.tools) {
for (const tool of capabilities.tools) {
this.toolToServerMap.set(tool, serverName);
}
}
if (capabilities.resources) {
for (const resource of capabilities.resources) {
this.resourceToServerMap.set(resource, serverName);
}
}
if (capabilities.prompts) {
for (const prompt of capabilities.prompts) {
this.promptToServerMap.set(prompt, serverName);
}
}
}
async proxyToolCall(toolName: string, args: any): Promise<any> {
const serverName = this.toolToServerMap.get(toolName);
if (!serverName) {
throw new Error(`No server found for tool: ${toolName}`);
}
const server = this.servers.get(serverName);
if (!server?.client) {
// Try to connect
await this.connectToServer(serverName);
}
const response = await (server!.client as any).request({
method: 'tools/call',
params: {
name: toolName,
arguments: args
}
});
return {
server: serverName,
tool: toolName,
result: response.content || response
};
}
async listAllCapabilities(): Promise<any> {
const result = {
servers: [] as any[],
tools: [] as any[],
resources: [] as any[],
prompts: [] as any[]
};
for (const [name, server] of this.servers) {
if (!server.installed) continue;
// Ensure connected
if (!server.client) {
try {
await this.connectToServer(name);
} catch (error) {
console.error(`Failed to connect to ${name}:`, error);
continue;
}
}
result.servers.push({
name,
package: server.package,
version: server.version,
type: server.type,
capabilities: server.capabilities
});
// Aggregate capabilities
if (server.capabilities?.tools) {
result.tools.push(...server.capabilities.tools.map(t => ({ tool: t, server: name })));
}
if (server.capabilities?.resources) {
result.resources.push(...server.capabilities.resources.map(r => ({ resource: r, server: name })));
}
if (server.capabilities?.prompts) {
result.prompts.push(...server.capabilities.prompts.map(p => ({ prompt: p, server: name })));
}
}
return result;
}
private detectPackageType(packageName: string): 'npm' | 'python' {
if (packageName.startsWith('@') || packageName.includes('/')) {
return 'npm';
}
if (packageName.startsWith('mcp-server-') || packageName.includes('_')) {
return 'python';
}
return 'npm';
}
private extractServerName(packageName: string): string {
if (packageName.includes('/')) {
const parts = packageName.split('/');
const lastPart = parts[parts.length - 1];
return lastPart.replace('server-', '').replace('mcp-', '');
}
return packageName.replace('mcp-server-', '').replace('mcp-', '');
}
async disconnectAll() {
for (const server of this.servers.values()) {
if (server.transport) {
await server.transport.close();
}
}
}
}
export function createMCPUniversalProxyTools(context: vscode.ExtensionContext): MCPTool[] {
const proxyManager = new MCPProxyManager(context);
// Cleanup on deactivate
context.subscriptions.push({
dispose: async () => {
await proxyManager.disconnectAll();
}
});
return [
{
name: 'mcp',
description: 'Universal MCP server proxy - install and use any MCP server',
inputSchema: {
type: 'object',
properties: {
action: {
type: 'string',
enum: ['install', 'call', 'list', 'uninstall'],
description: 'Action to perform'
},
package: {
type: 'string',
description: 'Package name for install (e.g., "@modelcontextprotocol/server-github")'
},
server: {
type: 'string',
description: 'Server name for operations'
},
tool: {
type: 'string',
description: 'Tool name to call'
},
args: {
type: 'object',
description: 'Arguments for tool call'
},
type: {
type: 'string',
enum: ['npm', 'python'],
description: 'Package type (auto-detected if not specified)'
},
force: {
type: 'boolean',
description: 'Force reinstall'
}
},
required: ['action']
},
handler: async (args: any) => {
switch (args.action) {
case 'install':
if (!args.package) {
return '❌ Package name required for install';
}
return await proxyManager.installServer(args.package, args.type, args.force);
case 'call':
if (!args.tool) {
return '❌ Tool name required for call';
}
try {
const result = await proxyManager.proxyToolCall(args.tool, args.args || {});
return `✅ Tool called via ${result.server}\n\nResult:\n${JSON.stringify(result.result, null, 2)}`;
} catch (error: any) {
return `❌ Tool call failed: ${error.message}`;
}
case 'list':
const capabilities = await proxyManager.listAllCapabilities();
return formatCapabilities(capabilities);
case 'uninstall':
// TODO: Implement uninstall
return '❌ Uninstall not yet implemented';
default:
return '❌ Unknown action. Use: install, call, list, or uninstall';
}
}
}
];
}
function formatCapabilities(capabilities: any): string {
let output = '# MCP Proxy Status\n\n';
output += '## Installed Servers\n';
for (const server of capabilities.servers) {
output += `\n### ${server.name}\n`;
output += `- Package: \`${server.package}\`\n`;
output += `- Version: ${server.version}\n`;
output += `- Type: ${server.type}\n`;
if (server.capabilities) {
output += `- Tools: ${server.capabilities.tools?.length || 0}\n`;
output += `- Resources: ${server.capabilities.resources?.length || 0}\n`;
output += `- Prompts: ${server.capabilities.prompts?.length || 0}\n`;
}
}
if (capabilities.tools.length > 0) {
output += '\n## Available Tools\n';
for (const { tool, server } of capabilities.tools) {
output += `- \`${tool}\` (${server})\n`;
}
}
if (capabilities.resources.length > 0) {
output += '\n## Available Resources\n';
for (const { resource, server } of capabilities.resources) {
output += `- \`${resource}\` (${server})\n`;
}
}
if (capabilities.prompts.length > 0) {
output += '\n## Available Prompts\n';
for (const { prompt, server } of capabilities.prompts) {
output += `- \`${prompt}\` (${server})\n`;
}
}
return output;
}
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import * as vscode from 'vscode';
import { MCPTool } from '../server';
/**
* Unified Tool Definitions
*
* This consolidates all tools from the Python Hanzo MCP implementation
* ensuring no duplicates and maintaining feature parity.
*
* Core principle: One tool per orthogonal concept
*/
// Tool mapping to ensure no duplicates
const TOOL_MAPPING = {
// File Operations (unified)
'read': ['read_files', 'read_file', 'cat'],
'write': ['write_file', 'create_file'],
'edit': ['edit_file', 'modify_file', 'sed'],
'multi_edit': ['edit_files', 'bulk_edit'],
// Directory Operations
'directory_tree': ['tree', 'ls_tree', 'dir_tree'],
'find_files': ['find', 'locate', 'search_files'],
// Search Operations
'grep': ['search_content', 'grep_files', 'rg'],
'content_replace': ['replace_content', 'sed_replace'],
'git_search': ['git_grep', 'search_git'],
// Shell Operations
'bash': ['run_command', 'shell', 'sh'],
'run_script': ['execute_script', 'run'],
// Development Tools
'notebook_read': ['read_notebook', 'jupyter_read'],
'notebook_edit': ['edit_notebook', 'jupyter_edit'],
// AI/Agent Tools
'agent': ['dispatch_agent', 'delegate'],
'think': ['reason', 'analyze'],
'critic': ['review', 'critique'],
// Project Tools
'project_analyze': ['analyze_project', 'project_info'],
'todo_unified': ['todo', 'task_list'],
// Platform Tools
'mcp': ['mcp_proxy', 'mcp_universal'],
'hanzo_mcp': ['platform_mcp', 'cloud_mcp'],
};
/**
* Get canonical tool name from any alias
*/
export function getCanonicalToolName(toolName: string): string {
for (const [canonical, aliases] of Object.entries(TOOL_MAPPING)) {
if (toolName === canonical || aliases.includes(toolName)) {
return canonical;
}
}
return toolName;
}
/**
* Enhanced file reading with all Python MCP features
*/
export function createUnifiedReadTool(context: vscode.ExtensionContext): MCPTool {
return {
name: 'read',
description: 'Read files with encoding detection, line ranges, and multiple file support',
inputSchema: {
type: 'object',
properties: {
paths: {
type: 'array',
items: { type: 'string' },
description: 'File paths to read (single string also accepted)'
},
path: {
type: 'string',
description: 'Single file path (for compatibility)'
},
encoding: {
type: 'string',
default: 'utf-8',
description: 'File encoding'
},
start_line: {
type: 'number',
description: 'Starting line number (1-based)'
},
end_line: {
type: 'number',
description: 'Ending line number (inclusive)'
}
}
},
handler: async (args: any) => {
const fs = require('fs').promises;
const path = require('path');
// Handle both paths array and single path
const paths = args.paths || (args.path ? [args.path] : []);
if (paths.length === 0) {
return '❌ No file paths provided';
}
const results = [];
for (const filePath of paths) {
try {
// Resolve path
const resolvedPath = path.resolve(filePath);
// Check permissions
const config = vscode.workspace.getConfiguration('hanzo.mcp');
const allowedPaths = config.get<string[]>('allowedPaths', []);
if (!isPathAllowed(resolvedPath, allowedPaths)) {
results.push(`${filePath}: Access denied`);
continue;
}
// Read file
let content = await fs.readFile(resolvedPath, args.encoding || 'utf-8');
// Apply line range if specified
if (args.start_line || args.end_line) {
const lines = content.split('\n');
const start = (args.start_line || 1) - 1;
const end = args.end_line || lines.length;
content = lines.slice(start, end).join('\n');
}
results.push(`📄 ${filePath}:\n${content}`);
} catch (error: any) {
results.push(`${filePath}: ${error.message}`);
}
}
return results.join('\n\n---\n\n');
}
};
}
/**
* Enhanced project analysis matching Python MCP features
*/
export function createUnifiedProjectAnalyzeTool(context: vscode.ExtensionContext): MCPTool {
return {
name: 'project_analyze',
description: 'Analyze project structure, dependencies, and frameworks',
inputSchema: {
type: 'object',
properties: {
path: {
type: 'string',
description: 'Project root path (defaults to workspace root)'
},
include_dependencies: {
type: 'boolean',
default: true,
description: 'Include dependency analysis'
},
include_structure: {
type: 'boolean',
default: true,
description: 'Include project structure'
},
max_depth: {
type: 'number',
default: 5,
description: 'Maximum directory depth for structure analysis'
}
}
},
handler: async (args: any) => {
const projectPath = args.path || vscode.workspace.workspaceFolders?.[0]?.uri.fsPath;
if (!projectPath) {
return '❌ No project path specified';
}
const fs = require('fs').promises;
const path = require('path');
let output = `# Project Analysis: ${path.basename(projectPath)}\n\n`;
// Detect project type
const projectType = await detectProjectType(projectPath);
output += `## Project Type: ${projectType}\n\n`;
// Analyze structure
if (args.include_structure !== false) {
output += `## Structure\n\`\`\`\n`;
output += await generateTreeStructure(projectPath, args.max_depth || 5);
output += `\n\`\`\`\n\n`;
}
// Analyze dependencies
if (args.include_dependencies !== false) {
output += `## Dependencies\n`;
const deps = await analyzeDependencies(projectPath, projectType);
output += deps + '\n\n';
}
// Framework detection
output += `## Frameworks & Tools\n`;
const frameworks = await detectFrameworks(projectPath);
frameworks.forEach(f => output += `- ${f}\n`);
return output;
}
};
}
/**
* Unix command aliasing for modes
*/
export function createUnixAliasTool(context: vscode.ExtensionContext): MCPTool {
return {
name: 'alias',
description: 'Create command aliases for use in modes',
inputSchema: {
type: 'object',
properties: {
name: {
type: 'string',
description: 'Alias name'
},
command: {
type: 'string',
description: 'Command to alias'
},
description: {
type: 'string',
description: 'What this command does'
}
},
required: ['name', 'command']
},
handler: async (args: any) => {
const aliases = context.globalState.get<any>('command-aliases', {});
aliases[args.name] = {
command: args.command,
description: args.description || `Alias for: ${args.command}`
};
await context.globalState.update('command-aliases', aliases);
return `✅ Created alias '${args.name}' → '${args.command}'
This can now be used in modes:
\`\`\`javascript
mode: {
tools: ['${args.name}']
}
\`\`\``;
}
};
}
// Helper functions
function isPathAllowed(filePath: string, allowedPaths: string[]): boolean {
if (allowedPaths.length === 0) {
// No restrictions if empty
return true;
}
const normalizedPath = filePath.toLowerCase();
return allowedPaths.some(allowed =>
normalizedPath.startsWith(allowed.toLowerCase())
);
}
async function detectProjectType(projectPath: string): Promise<string> {
const fs = require('fs').promises;
const path = require('path');
// Check for common project files
const checks = [
{ file: 'package.json', type: 'Node.js/JavaScript' },
{ file: 'pyproject.toml', type: 'Python (Poetry)' },
{ file: 'setup.py', type: 'Python' },
{ file: 'requirements.txt', type: 'Python' },
{ file: 'Cargo.toml', type: 'Rust' },
{ file: 'go.mod', type: 'Go' },
{ file: 'pom.xml', type: 'Java (Maven)' },
{ file: 'build.gradle', type: 'Java (Gradle)' },
{ file: 'Gemfile', type: 'Ruby' },
{ file: 'composer.json', type: 'PHP' },
{ file: '*.csproj', type: 'C#/.NET' },
{ file: 'CMakeLists.txt', type: 'C/C++ (CMake)' }
];
for (const check of checks) {
try {
if (check.file.includes('*')) {
// Pattern matching
const files = await fs.readdir(projectPath);
const pattern = check.file.replace('*', '.*');
if (files.some((f: string) => f.match(pattern))) {
return check.type;
}
} else {
await fs.access(path.join(projectPath, check.file));
return check.type;
}
} catch {
// File doesn't exist, continue
}
}
return 'Unknown';
}
async function generateTreeStructure(dirPath: string, maxDepth: number, currentDepth: number = 0): Promise<string> {
if (currentDepth >= maxDepth) return '';
const fs = require('fs').promises;
const path = require('path');
const indent = ' '.repeat(currentDepth);
let output = '';
try {
const items = await fs.readdir(dirPath);
const filtered = items.filter((item: string) =>
!item.startsWith('.') &&
!['node_modules', '__pycache__', 'dist', 'build', '.git'].includes(item)
);
for (const item of filtered) {
const itemPath = path.join(dirPath, item);
const stats = await fs.stat(itemPath);
if (stats.isDirectory()) {
output += `${indent}${item}/\n`;
output += await generateTreeStructure(itemPath, maxDepth, currentDepth + 1);
} else {
output += `${indent}${item}\n`;
}
}
} catch (error) {
// Ignore errors
}
return output;
}
async function analyzeDependencies(projectPath: string, projectType: string): Promise<string> {
const fs = require('fs').promises;
const path = require('path');
try {
switch (projectType) {
case 'Node.js/JavaScript': {
const packageJson = JSON.parse(
await fs.readFile(path.join(projectPath, 'package.json'), 'utf-8')
);
const deps = Object.keys(packageJson.dependencies || {});
const devDeps = Object.keys(packageJson.devDependencies || {});
return `- Dependencies: ${deps.length} (${deps.slice(0, 5).join(', ')}${deps.length > 5 ? '...' : ''})\n` +
`- Dev Dependencies: ${devDeps.length}`;
}
case 'Python':
case 'Python (Poetry)': {
// Try to read requirements.txt or pyproject.toml
try {
const requirements = await fs.readFile(
path.join(projectPath, 'requirements.txt'), 'utf-8'
);
const lines = requirements.split('\n').filter(l => l && !l.startsWith('#'));
return `- Dependencies: ${lines.length} packages`;
} catch {
return '- Dependencies: Unable to analyze';
}
}
default:
return '- Dependencies: Analysis not implemented for this project type';
}
} catch (error) {
return '- Dependencies: Unable to analyze';
}
}
async function detectFrameworks(projectPath: string): Promise<string[]> {
const fs = require('fs').promises;
const path = require('path');
const frameworks: string[] = [];
// Check package.json for JS frameworks
try {
const packageJson = JSON.parse(
await fs.readFile(path.join(projectPath, 'package.json'), 'utf-8')
);
const allDeps = {
...packageJson.dependencies,
...packageJson.devDependencies
};
const frameworkChecks = [
{ dep: 'react', name: 'React' },
{ dep: 'vue', name: 'Vue.js' },
{ dep: '@angular/core', name: 'Angular' },
{ dep: 'next', name: 'Next.js' },
{ dep: 'express', name: 'Express.js' },
{ dep: 'fastify', name: 'Fastify' },
{ dep: 'jest', name: 'Jest (testing)' },
{ dep: 'mocha', name: 'Mocha (testing)' },
{ dep: 'typescript', name: 'TypeScript' }
];
frameworkChecks.forEach(check => {
if (allDeps[check.dep]) {
frameworks.push(check.name);
}
});
} catch {
// Not a Node.js project
}
// Check for Python frameworks
try {
const files = await fs.readdir(projectPath);
if (files.includes('manage.py')) frameworks.push('Django');
if (files.includes('app.py') || files.includes('application.py')) {
// Could be Flask or FastAPI
try {
const content = await fs.readFile(
path.join(projectPath, files.includes('app.py') ? 'app.py' : 'application.py'),
'utf-8'
);
if (content.includes('flask')) frameworks.push('Flask');
if (content.includes('fastapi')) frameworks.push('FastAPI');
} catch {}
}
} catch {}
return frameworks.length > 0 ? frameworks : ['No frameworks detected'];
}
@@ -0,0 +1,206 @@
import * as assert from 'assert';
import * as vscode from 'vscode';
import * as path from 'path';
import * as fs from 'fs';
import { createMCPUniversalProxyTools } from '../../mcp/tools/mcp-universal-proxy';
describe('MCP Proxy Integration Tests', function() {
this.timeout(60000); // 60 seconds for real installations
let context: vscode.ExtensionContext;
let mcpTool: any;
let testStoragePath: string;
before(async () => {
// Create test storage directory
testStoragePath = path.join(__dirname, '../../../.test-storage');
await fs.promises.mkdir(testStoragePath, { recursive: true });
// Create mock context
const globalState = new Map();
context = {
globalState: {
get: (key: string, defaultValue?: any) => globalState.get(key) || defaultValue,
update: async (key: string, value: any) => {
globalState.set(key, value);
return Promise.resolve();
},
keys: () => Array.from(globalState.keys())
},
globalStorageUri: {
fsPath: testStoragePath
},
subscriptions: []
} as any;
// Get the MCP tool
const tools = createMCPUniversalProxyTools(context);
mcpTool = tools.find(t => t.name === 'mcp');
});
after(async () => {
// Cleanup test storage
try {
await fs.promises.rm(testStoragePath, { recursive: true, force: true });
} catch {}
});
describe('Real Server Installation', () => {
it('should install and connect to filesystem MCP server', async function() {
this.timeout(120000); // 2 minutes for npm install
// Install the filesystem server
const installResult = await mcpTool.handler({
action: 'install',
package: '@modelcontextprotocol/server-filesystem'
});
assert(installResult.includes('Successfully installed'));
assert(installResult.includes('@modelcontextprotocol/server-filesystem'));
// List capabilities
const listResult = await mcpTool.handler({ action: 'list' });
assert(listResult.includes('filesystem'));
assert(listResult.includes('Installed Servers'));
// Verify installation directory exists
const serverPath = path.join(testStoragePath, 'mcp-servers', 'filesystem');
assert(fs.existsSync(serverPath));
assert(fs.existsSync(path.join(serverPath, 'node_modules')));
});
it('should handle Python package installation', async function() {
// Skip if uvx not available
try {
const { execSync } = require('child_process');
execSync('which uvx', { stdio: 'ignore' });
} catch {
this.skip();
return;
}
const installResult = await mcpTool.handler({
action: 'install',
package: 'mcp-server-time',
type: 'python'
});
assert(installResult.includes('Successfully installed') ||
installResult.includes('already installed'));
});
});
describe('Server Communication', () => {
it('should discover server capabilities after connection', async function() {
// Ensure filesystem server is installed
await mcpTool.handler({
action: 'install',
package: '@modelcontextprotocol/server-filesystem'
});
// Give server time to start and discover capabilities
await new Promise(resolve => setTimeout(resolve, 2000));
const listResult = await mcpTool.handler({ action: 'list' });
// Should show tools discovered from the server
assert(listResult.includes('Available Tools') ||
listResult.includes('filesystem'));
});
});
describe('Error Recovery', () => {
it('should handle invalid package names gracefully', async () => {
const result = await mcpTool.handler({
action: 'install',
package: '@invalid/package-that-does-not-exist-12345'
});
assert(result.includes('Failed to install'));
});
it('should recover from server crashes', async function() {
// This test would require mocking server crashes
// For now, we just verify the error handling path exists
const result = await mcpTool.handler({
action: 'call',
tool: 'non_existent_tool'
});
assert(result.includes('No server found') || result.includes('failed'));
});
});
describe('Multiple Server Management', () => {
it('should manage multiple servers simultaneously', async function() {
this.timeout(180000); // 3 minutes for multiple installs
// Install multiple servers
const servers = [
'@modelcontextprotocol/server-memory',
'@modelcontextprotocol/server-fetch'
];
for (const server of servers) {
await mcpTool.handler({
action: 'install',
package: server
});
}
// List all servers
const listResult = await mcpTool.handler({ action: 'list' });
assert(listResult.includes('memory'));
assert(listResult.includes('fetch'));
// Verify each has its own directory
assert(fs.existsSync(path.join(testStoragePath, 'mcp-servers', 'memory')));
assert(fs.existsSync(path.join(testStoragePath, 'mcp-servers', 'fetch')));
});
});
describe('Persistence', () => {
it('should persist installed servers across sessions', async () => {
// Install a server
await mcpTool.handler({
action: 'install',
package: '@modelcontextprotocol/server-memory'
});
// Create new tools instance (simulating restart)
const newTools = createMCPUniversalProxyTools(context);
const newMcpTool = newTools.find(t => t.name === 'mcp');
// List should still show the installed server
const listResult = await newMcpTool.handler({ action: 'list' });
assert(listResult.includes('memory'));
});
});
});
describe('MCP Proxy Examples', () => {
it('should demonstrate usage patterns', () => {
const examples = `
# Install GitHub MCP server
@hanzo mcp --action install --package @modelcontextprotocol/server-github
# Install Python-based Git server
@hanzo mcp --action install --package mcp-server-git --type python
# List all installed servers and capabilities
@hanzo mcp --action list
# Call a tool from any installed server
@hanzo mcp --action call --tool github_search --args '{"query": "MCP servers"}'
# Auto-install and use in one command (future feature)
@hanzo mcp --action call --tool sqlite_query --args '{"query": "SELECT * FROM users"}' --auto-install
`;
assert(examples.includes('install'));
assert(examples.includes('list'));
assert(examples.includes('call'));
});
});
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@@ -0,0 +1,395 @@
import * as assert from 'assert';
import * as sinon from 'sinon';
import * as vscode from 'vscode';
import * as cp from 'child_process';
import * as fs from 'fs';
import * as path from 'path';
import { createMCPUniversalProxyTools } from '../mcp/tools/mcp-universal-proxy';
import { promisify } from 'util';
const exec = promisify(cp.exec);
describe('MCP Universal Proxy Tests', () => {
let context: vscode.ExtensionContext;
let sandbox: sinon.SinonSandbox;
let globalState: Map<string, any>;
let mcpTool: any;
let execStub: sinon.SinonStub;
let fsStub: any;
beforeEach(() => {
sandbox = sinon.createSandbox();
globalState = new Map();
// Mock VS Code context
context = {
globalState: {
get: (key: string, defaultValue?: any) => globalState.get(key) || defaultValue,
update: async (key: string, value: any) => {
globalState.set(key, value);
return Promise.resolve();
},
keys: () => Array.from(globalState.keys())
},
globalStorageUri: {
fsPath: '/test/storage'
},
subscriptions: []
} as any;
// Mock exec
execStub = sandbox.stub(cp, 'exec');
// Mock fs
fsStub = {
mkdir: sandbox.stub().resolves(),
writeFile: sandbox.stub().resolves(),
readFile: sandbox.stub(),
rm: sandbox.stub().resolves()
};
sandbox.stub(fs.promises, 'mkdir').callsFake(fsStub.mkdir);
sandbox.stub(fs.promises, 'writeFile').callsFake(fsStub.writeFile);
sandbox.stub(fs.promises, 'readFile').callsFake(fsStub.readFile);
// Get the MCP tool
const tools = createMCPUniversalProxyTools(context);
mcpTool = tools.find(t => t.name === 'mcp');
});
afterEach(() => {
sandbox.restore();
});
describe('Installation', () => {
it('should install npm packages correctly', async () => {
const packageName = '@modelcontextprotocol/server-github';
// Mock successful npm install
execStub.withArgs('npm install').callsArgWith(2, null, 'installed', '');
// Mock package.json read
fsStub.readFile.resolves(JSON.stringify({
name: packageName,
version: '1.0.0',
main: 'dist/index.js'
}));
const result = await mcpTool.handler({
action: 'install',
package: packageName
});
assert(result.includes('Successfully installed'));
assert(result.includes('1.0.0'));
assert(fsStub.mkdir.called);
assert(fsStub.writeFile.called);
});
it('should install Python packages correctly', async () => {
const packageName = 'mcp-server-git';
// Mock successful uvx install
execStub.withArgs(sinon.match(/uvx install/)).callsArgWith(2, null, 'installed', '');
execStub.withArgs(sinon.match(/uvx.*--version/)).callsArgWith(2, null, '1.2.3', '');
const result = await mcpTool.handler({
action: 'install',
package: packageName,
type: 'python'
});
assert(result.includes('Successfully installed'));
assert(result.includes('1.2.3'));
});
it('should detect package type automatically', async () => {
// NPM package
execStub.callsArgWith(2, null, 'installed', '');
fsStub.readFile.resolves(JSON.stringify({
name: 'test',
version: '1.0.0'
}));
await mcpTool.handler({
action: 'install',
package: '@scope/package'
});
assert(execStub.calledWith('npm install'));
// Python package
execStub.reset();
execStub.callsArgWith(2, null, 'installed', '');
await mcpTool.handler({
action: 'install',
package: 'mcp-server-test'
});
assert(execStub.calledWith(sinon.match(/uvx install/)));
});
it('should not reinstall if already installed without force', async () => {
// Pre-populate installed servers
globalState.set('mcp-installed-servers', [{
name: 'github',
package: '@modelcontextprotocol/server-github',
installed: true,
version: '1.0.0'
}]);
const result = await mcpTool.handler({
action: 'install',
package: '@modelcontextprotocol/server-github'
});
assert(result.includes('already installed'));
assert(!execStub.called);
});
it('should reinstall with force flag', async () => {
globalState.set('mcp-installed-servers', [{
name: 'github',
package: '@modelcontextprotocol/server-github',
installed: true
}]);
execStub.callsArgWith(2, null, 'installed', '');
fsStub.readFile.resolves(JSON.stringify({
version: '2.0.0'
}));
const result = await mcpTool.handler({
action: 'install',
package: '@modelcontextprotocol/server-github',
force: true
});
assert(result.includes('Successfully installed'));
assert(execStub.called);
});
});
describe('Tool Proxy', () => {
let spawnStub: sinon.SinonStub;
let mockProcess: any;
beforeEach(() => {
mockProcess = {
stdin: { write: sandbox.stub() },
stdout: {
on: sandbox.stub(),
off: sandbox.stub()
},
stderr: { on: sandbox.stub() },
pid: 12345
};
spawnStub = sandbox.stub(cp, 'spawn').returns(mockProcess as any);
});
it('should proxy tool calls to the correct server', async () => {
// Setup installed server
globalState.set('mcp-installed-servers', [{
name: 'github',
package: '@modelcontextprotocol/server-github',
installed: true,
installPath: '/test/storage/mcp-servers/github',
capabilities: {
tools: ['github_search', 'github_create_issue']
}
}]);
// Simulate server response
mockProcess.stdout.on.callsArgWith(1, JSON.stringify({
jsonrpc: '2.0',
id: 1,
result: {
content: [{ type: 'text', text: 'Search results' }]
}
}));
const result = await mcpTool.handler({
action: 'call',
tool: 'github_search',
args: { query: 'test' }
});
assert(result.includes('Tool called via github'));
assert(result.includes('Search results'));
});
it('should handle tool not found error', async () => {
const result = await mcpTool.handler({
action: 'call',
tool: 'unknown_tool'
});
assert(result.includes('No server found for tool'));
});
it('should auto-connect to server if not connected', async () => {
globalState.set('mcp-installed-servers', [{
name: 'sqlite',
package: '@modelcontextprotocol/server-sqlite',
installed: true,
installPath: '/test/storage/mcp-servers/sqlite'
}]);
// Mock initial connection response
let callCount = 0;
mockProcess.stdout.on.callsFake((event: string, handler: Function) => {
if (event === 'data') {
// First call: capabilities
if (callCount === 0) {
handler(JSON.stringify({
jsonrpc: '2.0',
result: {
tools: [{ name: 'sqlite_query' }]
}
}));
}
// Second call: actual tool response
else if (callCount === 1) {
handler(JSON.stringify({
jsonrpc: '2.0',
result: {
content: [{ type: 'text', text: 'Query result' }]
}
}));
}
callCount++;
}
});
const result = await mcpTool.handler({
action: 'call',
tool: 'sqlite_query',
args: { query: 'SELECT * FROM users' }
});
assert(spawnStub.called);
assert(result.includes('Query result'));
});
});
describe('Listing Capabilities', () => {
it('should list all installed servers and their capabilities', async () => {
globalState.set('mcp-installed-servers', [
{
name: 'github',
package: '@modelcontextprotocol/server-github',
installed: true,
version: '1.0.0',
type: 'npm',
capabilities: {
tools: ['github_search', 'github_create_issue'],
resources: ['github://repo'],
prompts: ['review_pr']
}
},
{
name: 'sqlite',
package: '@modelcontextprotocol/server-sqlite',
installed: true,
version: '2.0.0',
type: 'npm',
capabilities: {
tools: ['sqlite_query', 'sqlite_execute']
}
}
]);
const result = await mcpTool.handler({ action: 'list' });
assert(result.includes('github'));
assert(result.includes('sqlite'));
assert(result.includes('github_search'));
assert(result.includes('sqlite_query'));
assert(result.includes('Tools: 2'));
assert(result.includes('Resources: 1'));
assert(result.includes('Prompts: 1'));
});
it('should show empty state when no servers installed', async () => {
const result = await mcpTool.handler({ action: 'list' });
assert(result.includes('MCP Proxy Status'));
assert(result.includes('Installed Servers'));
});
});
describe('Error Handling', () => {
it('should handle npm install failures', async () => {
execStub.callsArgWith(2, new Error('npm install failed'));
try {
await mcpTool.handler({
action: 'install',
package: '@modelcontextprotocol/server-test'
});
assert.fail('Should have thrown');
} catch (error: any) {
assert(error.message.includes('Failed to install'));
}
});
it('should handle missing required parameters', async () => {
let result = await mcpTool.handler({ action: 'install' });
assert(result.includes('Package name required'));
result = await mcpTool.handler({ action: 'call' });
assert(result.includes('Tool name required'));
});
it('should handle unknown actions gracefully', async () => {
const result = await mcpTool.handler({ action: 'unknown' });
assert(result.includes('Unknown action'));
});
it('should handle server connection failures', async () => {
const spawnStub = sandbox.stub(cp, 'spawn');
spawnStub.throws(new Error('Failed to start server'));
globalState.set('mcp-installed-servers', [{
name: 'test',
installed: true,
capabilities: { tools: ['test_tool'] }
}]);
try {
await mcpTool.handler({
action: 'call',
tool: 'test_tool'
});
assert.fail('Should have thrown');
} catch (error: any) {
assert(error.message.includes('Failed to start server'));
}
});
});
describe('Package Name Extraction', () => {
const testCases = [
['@modelcontextprotocol/server-github', 'github'],
['@scope/server-test', 'test'],
['mcp-server-git', 'git'],
['simple-package', 'simple-package'],
['server-sqlite', 'sqlite']
];
testCases.forEach(([input, expected]) => {
it(`should extract "${expected}" from "${input}"`, async () => {
execStub.callsArgWith(2, null, '', '');
fsStub.readFile.resolves(JSON.stringify({ version: '1.0.0' }));
const result = await mcpTool.handler({
action: 'install',
package: input
});
const installedServers = globalState.get('mcp-installed-servers') || [];
assert(installedServers.some((s: any) => s.name === expected));
});
});
});
});