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import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import {
ListToolsRequestSchema,
CallToolRequestSchema,
ListResourcesRequestSchema,
ReadResourceRequestSchema,
ListPromptsRequestSchema,
GetPromptRequestSchema,
Tool,
} from '@modelcontextprotocol/sdk/types.js';
import { ProviderManager } from '../providers/ProviderManager.js';
import { WorkItemsManager } from '../abstraction/WorkItemsManager.js';
import { RepositoryManager } from '../abstraction/RepositoryManager.js';
import { ProjectManager } from '../abstraction/ProjectManager.js';
import { MergeRequestManager } from '../abstraction/MergeRequestManager.js';
import { PipelineManager } from '../abstraction/PipelineManager.js';
import { SearchManager } from '../abstraction/SearchManager.js';
import { BranchManager } from '../abstraction/BranchManager.js';
import { CommitManager } from '../abstraction/CommitManager.js';
import { NexusConfig, ProviderInstance } from '../types/index.js';
import { createServer } from 'http';
import express from 'express';
import { logger } from '../utils/logger.js';
export class NexusProxyServer {
private server: Server;
private providerManager: ProviderManager;
private workItemsManager: WorkItemsManager;
private repositoryManager: RepositoryManager;
private projectManager: ProjectManager;
private mergeRequestManager: MergeRequestManager;
private pipelineManager: PipelineManager;
private searchManager: SearchManager;
private branchManager: BranchManager;
private commitManager: CommitManager;
private config: NexusConfig;
private httpServer?: ReturnType<typeof createServer>;
private expressApp?: express.Application;
constructor() {
this.server = new Server(
{
name: 'project-nexus-mcp',
version: '1.0.0',
description: 'Unified MCP proxy for DevOps platforms',
},
{
capabilities: {
tools: {},
resources: {},
prompts: {},
},
},
);
this.providerManager = new ProviderManager();
this.workItemsManager = new WorkItemsManager(this.providerManager);
this.repositoryManager = new RepositoryManager(this.providerManager);
this.projectManager = new ProjectManager(this.providerManager);
this.mergeRequestManager = new MergeRequestManager(this.providerManager);
this.pipelineManager = new PipelineManager(this.providerManager);
this.searchManager = new SearchManager(this.providerManager);
this.branchManager = new BranchManager(this.providerManager);
this.commitManager = new CommitManager(this.providerManager);
this.config = {
providers: [],
projects: {},
};
this.setupHandlers();
this.setupProviderEventHandlers();
}
private setupHandlers(): void {
this.server.setRequestHandler(ListToolsRequestSchema, () => {
// DO NOT expose provider tools - only unified nexus_* tools
const workItemTools = this.workItemsManager.createUnifiedTools();
const repositoryTools = this.repositoryManager.createUnifiedTools();
const projectTools = this.projectManager.createUnifiedTools();
const mergeRequestTools = this.mergeRequestManager.createUnifiedTools();
const pipelineTools = this.pipelineManager.createUnifiedTools();
const searchTools = this.searchManager.createUnifiedTools();
const branchTools = this.branchManager.createUnifiedTools();
const commitTools = this.commitManager.createUnifiedTools();
const additionalTools = this.createAdditionalTools();
return {
tools: [
...workItemTools,
...repositoryTools,
...projectTools,
...mergeRequestTools,
...pipelineTools,
...searchTools,
...branchTools,
...commitTools,
...additionalTools,
],
};
});
this.server.setRequestHandler(CallToolRequestSchema, async (request) => {
const { name, arguments: args } = request.params;
const safeArgs = args ?? {};
if (name.startsWith('nexus_')) {
return await this.handleNexusTool(name, safeArgs);
}
const result = await this.providerManager.callTool(name, safeArgs);
return result as { [x: string]: unknown; _meta?: { [x: string]: unknown } | undefined };
});
this.server.setRequestHandler(ListResourcesRequestSchema, () => {
const resources = this.providerManager.getAllResources();
return { resources };
});
this.server.setRequestHandler(ReadResourceRequestSchema, async (request) => {
const { uri } = request.params;
const result = await this.providerManager.readResource(uri);
return result as { [x: string]: unknown; _meta?: { [x: string]: unknown } | undefined };
});
this.server.setRequestHandler(ListPromptsRequestSchema, () => {
const prompts = this.providerManager.getAllPrompts();
return { prompts };
});
this.server.setRequestHandler(GetPromptRequestSchema, async (request) => {
const { name, arguments: args } = request.params;
const result = await this.providerManager.getPrompt(name, args);
return result as { [x: string]: unknown; _meta?: { [x: string]: unknown } | undefined };
});
}
private setupProviderEventHandlers(): void {
this.providerManager.on('provider:connected', (provider: { id: string }) => {
logger.log(`š Provider connected: ${provider.id}`);
// Show detailed tool information when provider connects
const providerInstance = this.providerManager
.getAllProviders()
.find((p) => p.id === provider.id);
if (providerInstance && providerInstance.status === 'connected') {
this.printProviderToolsOnConnect(providerInstance);
}
});
this.providerManager.on('provider:disconnected', (provider: { id: string }) => {
logger.log(`š Provider disconnected: ${provider.id}`);
});
this.providerManager.on(
'provider:error',
({ provider, error }: { provider: { id: string }; error: unknown }) => {
const errorMessage = error instanceof Error ? error.message : String(error);
logger.error(`ā Provider error (${provider.id}): ${errorMessage}`);
},
);
this.providerManager.on('provider:auth_failed', (provider: { id: string; error?: string }) => {
const missingTokensInfo = this.getMissingTokensInfo(provider.id);
logger.error(
`š Provider authentication failed (${provider.id}): ${provider.error ?? 'Missing authentication tokens'}`,
);
if (missingTokensInfo) {
logger.log(`š” ${missingTokensInfo}`);
}
});
this.providerManager.on('provider:update-check', (provider: { id: string }) => {
logger.log(`š Checking updates for provider: ${provider.id}`);
});
}
/**
* Get information about missing tokens for a specific provider
*/
private getMissingTokensInfo(providerId: string): string | null {
switch (providerId) {
case 'github':
Eif (!process.env.GITHUB_TOKEN) {
return 'Set GITHUB_TOKEN environment variable with your GitHub personal access token';
}
break;
case 'gitlab':
Eif (!process.env.GITLAB_TOKEN) {
return 'Set GITLAB_TOKEN environment variable with your GitLab personal access token';
}
break;
case 'azure': {
const missingAzure: string[] = [];
Eif (!process.env.AZURE_TOKEN) {
missingAzure.push('AZURE_TOKEN');
}
Eif (!process.env.AZURE_ORG) {
missingAzure.push('AZURE_ORG');
}
Eif (missingAzure.length > 0) {
return `Set environment variables: ${missingAzure.join(', ')}`;
}
break;
}
}
return null;
}
/**
* Get information about all missing tokens
*/
private getAllMissingTokensInfo(): Record<string, string> {
const missing: Record<string, string> = {};
const providers = ['github', 'gitlab', 'azure'];
for (const providerId of providers) {
const info = this.getMissingTokensInfo(providerId);
Eif (info) {
missing[providerId] = info;
}
}
return missing;
}
private async handleNexusTool(
name: string,
args: Record<string, unknown>,
): Promise<{ content: Array<{ type: string; text: string }> }> {
switch (name) {
case 'nexus_list_work_items': {
const project = typeof args.project === 'string' ? args.project : undefined;
const items = await this.workItemsManager.listWorkItems(project, args);
return {
content: [
{
type: 'text',
text: JSON.stringify(items, null, 2),
},
],
};
}
case 'nexus_create_work_item': {
if (typeof args.project !== 'string') {
throw new Error('Project parameter must be a string');
}
const created = await this.workItemsManager.createWorkItem(args.project, args);
return {
content: [
{
type: 'text',
text: JSON.stringify(created, null, 2),
},
],
};
}
case 'nexus_update_work_item': {
if (typeof args.id !== 'string') {
throw new Error('ID parameter must be a string');
}
const updated = await this.workItemsManager.updateWorkItem(args.id, args);
return {
content: [
{
type: 'text',
text: JSON.stringify(updated, null, 2),
},
],
};
}
case 'nexus_search_projects': {
const query = typeof args.query === 'string' ? args.query : undefined;
const projects = await this.workItemsManager.searchProjects(query);
return {
content: [
{
type: 'text',
text: JSON.stringify(projects, null, 2),
},
],
};
}
case 'nexus_search_users': {
const query = typeof args.query === 'string' ? args.query : undefined;
const users = await this.workItemsManager.searchUsers(query);
return {
content: [
{
type: 'text',
text: JSON.stringify(users, null, 2),
},
],
};
}
case 'nexus_get_project_users': {
if (typeof args.project_id !== 'string') {
throw new Error('project_id parameter must be a string');
}
const users = this.workItemsManager.getProjectUsers(args.project_id);
return {
content: [
{
type: 'text',
text: JSON.stringify(users, null, 2),
},
],
};
}
case 'nexus_cache_stats': {
const stats = this.workItemsManager.getCacheStats();
return {
content: [
{
type: 'text',
text: JSON.stringify(stats, null, 2),
},
],
};
}
case 'nexus_transfer_work_item': {
if (typeof args.source_id !== 'string' || typeof args.target_project !== 'string') {
throw new Error('source_id and target_project parameters must be strings');
}
const transferred = await this.workItemsManager.transferWorkItem(
args.source_id,
args.target_project,
);
return {
content: [
{
type: 'text',
text: JSON.stringify(transferred, null, 2),
},
],
};
}
// Repository Manager Tools
case 'nexus_list_repositories': {
const project = typeof args.project === 'string' ? args.project : undefined;
const repositories = await this.repositoryManager.listRepositories(project, args);
return {
content: [
{
type: 'text',
text: JSON.stringify(repositories, null, 2),
},
],
};
}
case 'nexus_get_repository': {
if (typeof args.project !== 'string' || typeof args.repository !== 'string') {
throw new Error('project and repository parameters must be strings');
}
const repository = await this.repositoryManager.getRepository(
args.project,
args.repository,
);
return {
content: [
{
type: 'text',
text: JSON.stringify(repository, null, 2),
},
],
};
}
case 'nexus_list_files': {
if (typeof args.project !== 'string' || typeof args.repository !== 'string') {
throw new Error('project and repository parameters must be strings');
}
const path = typeof args.path === 'string' ? args.path : '';
const ref = typeof args.ref === 'string' ? args.ref : undefined;
const files = await this.repositoryManager.listFiles(
args.project,
args.repository,
path,
ref,
);
return {
content: [
{
type: 'text',
text: JSON.stringify(files, null, 2),
},
],
};
}
case 'nexus_get_file_content': {
if (
typeof args.project !== 'string' ||
typeof args.repository !== 'string' ||
typeof args.file_path !== 'string'
) {
throw new Error('project, repository, and file_path parameters must be strings');
}
const ref = typeof args.ref === 'string' ? args.ref : undefined;
const content = await this.repositoryManager.getFileContent(
args.project,
args.repository,
args.file_path,
ref,
);
return {
content: [
{
type: 'text',
text: JSON.stringify(content, null, 2),
},
],
};
}
// Project Manager Tools
case 'nexus_list_projects': {
const provider = typeof args.provider === 'string' ? args.provider : undefined;
const projects = await this.projectManager.listProjects(provider, args);
return {
content: [
{
type: 'text',
text: JSON.stringify(projects, null, 2),
},
],
};
}
case 'nexus_get_project': {
if (typeof args.project !== 'string') {
throw new Error('project parameter must be a string');
}
const project = await this.projectManager.getProject(args.project);
return {
content: [
{
type: 'text',
text: JSON.stringify(project, null, 2),
},
],
};
}
case 'nexus_list_project_members': {
if (typeof args.project !== 'string') {
throw new Error('project parameter must be a string');
}
const members = await this.projectManager.listProjectMembers(args.project);
return {
content: [
{
type: 'text',
text: JSON.stringify(members, null, 2),
},
],
};
}
case 'nexus_add_project_member': {
if (
typeof args.project !== 'string' ||
typeof args.username !== 'string' ||
typeof args.role !== 'string'
) {
throw new Error('project, username, and role parameters must be strings');
}
const added = await this.projectManager.addProjectMember(
args.project,
args.username,
args.role,
);
return {
content: [
{
type: 'text',
text: JSON.stringify({ success: added }, null, 2),
},
],
};
}
case 'nexus_remove_project_member': {
if (typeof args.project !== 'string' || typeof args.username !== 'string') {
throw new Error('project and username parameters must be strings');
}
const removed = await this.projectManager.removeProjectMember(args.project, args.username);
return {
content: [
{
type: 'text',
text: JSON.stringify({ success: removed }, null, 2),
},
],
};
}
case 'nexus_reload_provider': {
Iif (typeof args.provider_id !== 'string') {
throw new Error('provider_id parameter must be a string');
}
await this.providerManager.reloadProvider(args.provider_id);
return {
content: [
{
type: 'text',
text: `Provider ${args.provider_id} reloaded successfully`,
},
],
};
}
case 'nexus_provider_status': {
const providers = this.providerManager.getAllProviders();
const status = providers.map((p) => ({
id: p.id,
name: p.config.name,
status: p.status,
tools: p.tools.size,
resources: p.resources.size,
error: p.error,
errorType: p.errorType,
shouldReconnect: p.shouldReconnect,
reconnectAttempts: p.reconnectAttempts ?? 0,
lastUpdated: p.lastUpdated?.toISOString(),
}));
// Add helpful information about missing tokens
const statusWithHelp = {
providers: status,
missingTokens: this.getAllMissingTokensInfo(),
};
return {
content: [
{
type: 'text',
text: JSON.stringify(statusWithHelp, null, 2),
},
],
};
}
case 'nexus_restart_all_providers': {
// Check if debug tools are enabled
if (process.env.NEXUS_DEBUG_TOOLS !== 'true') {
throw new Error('Debug tools are not enabled. Set NEXUS_DEBUG_TOOLS=true to enable.');
}
await this.providerManager.restartAllProviders();
return {
content: [
{
type: 'text',
text: 'All providers have been restarted',
},
],
};
}
case 'nexus_exit_server': {
// Check if debug tools are enabled
if (process.env.NEXUS_DEBUG_TOOLS !== 'true') {
throw new Error('Debug tools are not enabled. Set NEXUS_DEBUG_TOOLS=true to enable.');
}
// Initiate graceful shutdown
logger.log('Debug exit requested - shutting down server...');
// Return response first
const response = {
content: [
{
type: 'text',
text: 'Server shutdown initiated',
},
],
};
// Schedule shutdown after response is sent
setTimeout(() => {
void (async () => {
try {
await this.shutdown();
process.exit(0);
} catch (error) {
logger.error(
`Error during shutdown: ${error instanceof Error ? error.message : String(error)}`,
);
process.exit(1);
}
})();
}, 100);
return response;
}
default:
throw new Error(`Unknown tool: ${name}`);
}
}
private createAdditionalTools(): Tool[] {
const tools: Tool[] = [
{
name: 'nexus_reload_provider',
description: 'Reload a specific provider (useful for updating to new versions)',
inputSchema: {
type: 'object',
required: ['provider_id'],
properties: {
provider_id: {
type: 'string',
description: 'Provider ID to reload (e.g., "github", "gitlab", "azure")',
},
},
},
},
{
name: 'nexus_provider_status',
description: 'Get status of all configured providers',
inputSchema: {
type: 'object',
properties: {},
},
},
];
// Add debug tools only if environment variable is set
Iif (process.env.NEXUS_DEBUG_TOOLS === 'true') {
tools.push(
{
name: 'nexus_restart_all_providers',
description: '[DEBUG] Restart all child MCP server providers',
inputSchema: {
type: 'object',
properties: {},
},
},
{
name: 'nexus_exit_server',
description: '[DEBUG] Shut down the Nexus proxy server (allows restart from Claude Code)',
inputSchema: {
type: 'object',
properties: {},
},
},
);
}
return tools;
}
loadConfig(_configPath?: string): void {
// Always use environment variables only - no .mcp.json support
logger.log('Loading configuration from environment variables');
this.config = this.loadConfigFromEnv();
}
private loadConfigFromEnv(): NexusConfig {
const config: NexusConfig = {
providers: [],
projects: {},
};
if (process.env.DEFAULT_REPOSITORY) {
config.defaultRepository = process.env.DEFAULT_REPOSITORY;
config.projects[''] = process.env.DEFAULT_REPOSITORY;
}
if (process.env.DEFAULT_TASK) {
config.defaultTask = process.env.DEFAULT_TASK;
}
const providers = [];
if (process.env.GITHUB_TOKEN) {
providers.push({
id: 'github',
name: 'GitHub',
type: 'http' as const,
url: 'https://api.githubcopilot.com/mcp/',
headers: {
Authorization: `Bearer ${process.env.GITHUB_TOKEN}`,
'X-MCP-Toolsets': process.env.GITHUB_TOOLSETS ?? 'all',
'X-MCP-Readonly': 'false',
},
enabled: true,
});
}
if (process.env.GITLAB_TOKEN) {
providers.push({
id: 'gitlab',
name: 'GitLab',
type: 'stdio' as const,
command: 'uv',
args: [
'run',
'--python',
'3.13',
'--with',
'git+https://github.com/polaz/gitlab-mcp.git',
'python',
'-m',
'gitlab_mcp',
],
env: {
GITLAB_PERSONAL_ACCESS_TOKEN: process.env.GITLAB_TOKEN,
GITLAB_API_URL: process.env.GITLAB_URL ?? 'https://gitlab.com',
},
enabled: true,
autoUpdate: true,
});
}
if (process.env.AZURE_TOKEN && process.env.AZURE_ORG) {
providers.push({
id: 'azure',
name: 'Azure DevOps',
type: 'stdio' as const,
command: 'yarn',
args: ['dlx', '-q', '@azure-devops/mcp', process.env.AZURE_ORG],
env: {
AZURE_DEVOPS_PAT: process.env.AZURE_TOKEN,
YARN_NODE_LINKER: 'node-modules',
YARN_ENABLE_PROGRESS_BARS: 'false',
},
enabled: true,
autoUpdate: true,
});
}
config.providers = providers;
return config;
}
async initialize(): Promise<void> {
this.loadConfig();
// Read version from package.json
const fs = await import('fs/promises');
const path = await import('path');
try {
const packageJsonPath = path.join(process.cwd(), 'package.json');
const packageData = await fs.readFile(packageJsonPath, 'utf-8');
const { version } = JSON.parse(packageData) as { version: string };
logger.log(`\n=== Project Nexus MCP Server v${version} ===`);
} catch {
logger.log(`\n=== Project Nexus MCP Server Initialization ===`);
}
logger.log(`Found ${this.config.providers.length} provider(s) in configuration`);
// Initialize all providers asynchronously without blocking
const initPromises = this.config.providers.map(async (providerConfig) => {
if (providerConfig.enabled) {
logger.log(`Initializing provider: ${providerConfig.name} (${providerConfig.id})...`);
try {
await this.providerManager.initializeProvider(providerConfig);
logger.log(`ā ${providerConfig.name} initialized successfully`);
} catch (error) {
logger.error(
`ā Failed to initialize provider ${providerConfig.id}: ${error instanceof Error ? error.message : String(error)}`,
);
}
} else {
logger.log(`- ${providerConfig.name} is disabled`);
}
});
// Wait for all providers to attempt initialization (but don't fail if they error)
await Promise.allSettled(initPromises);
// Print final status
this.printProviderStatus();
// Start cache warming after providers are initialized
this.startCacheWarming();
this.providerManager.startAutoUpdate(3600000); // 1 hour
}
/**
* Start cache warming process for projects and users
*/
private startCacheWarming(): void {
const connectedProviders = this.providerManager
.getAllProviders()
.filter((p) => p.status === 'connected');
if (connectedProviders.length === 0) {
logger.log('[cache] No connected providers, skipping cache warming');
return;
}
// Start cache warming in the background (don't await)
setTimeout(() => {
void (async () => {
try {
await this.providerManager.warmupCaches();
} catch (error) {
logger.error(
`[cache] Cache warmup failed: ${error instanceof Error ? error.message : String(error)}`,
);
}
})();
}, 5000); // Wait 5 seconds after server startup to avoid interfering with initialization
}
async runStdio(): Promise<void> {
await this.initialize();
const transport = new StdioServerTransport();
await this.server.connect(transport);
logger.log('\nš Project Nexus MCP Server running in STDIO mode');
logger.log('š” Ready to receive MCP requests\n');
}
async runHttp(port: number = 3000): Promise<void> {
await this.initialize();
const { SSEServerTransport } = await import('@modelcontextprotocol/sdk/server/sse.js');
this.expressApp = express();
this.expressApp.use(express.json());
this.expressApp.get('/sse', async (_req, res) => {
const transport = new SSEServerTransport('/message', res);
await this.server.connect(transport);
});
this.expressApp.post('/message', (_req, res) => {
// HTTP transport not yet available
res.status(501).json({ error: 'HTTP transport not yet implemented' });
});
this.expressApp.get('/health', (_req, res) => {
const providers = this.providerManager.getAllProviders();
res.json({
status: 'healthy',
providers: providers.map((p) => ({
id: p.id,
status: p.status,
tools: p.tools.size,
})),
});
});
this.httpServer = createServer(this.expressApp);
this.httpServer.listen(port, () => {
process.stdout.write(`Project Nexus MCP Server running on http://localhost:${port}\n`);
process.stdout.write(`SSE endpoint: http://localhost:${port}/sse\n`);
process.stdout.write(`HTTP endpoint: http://localhost:${port}/message\n`);
process.stdout.write(`Health check: http://localhost:${port}/health\n`);
});
}
private printProviderStatus(): void {
const providers = this.providerManager.getAllProviders();
logger.log(`\\n=== Provider Status Summary ===`);
if (providers.length === 0) {
logger.warn(`ā ļø No providers configured. Set environment variables:`);
logger.log(` GITHUB_TOKEN - for GitHub integration`);
logger.log(` GITLAB_TOKEN - for GitLab integration`);
logger.log(` AZURE_TOKEN - for Azure DevOps integration\\n`);
return;
}
let connectedCount = 0;
for (const provider of providers) {
const status =
provider.status === 'connected' ? 'š¢' : provider.status === 'error' ? 'š“' : 'š”';
logger.log(`${status} ${provider.config.name} (${provider.id}): ${provider.status}`);
if (provider.status === 'connected') {
connectedCount++;
logger.log(
` Tools: ${provider.tools.size}, Resources: ${provider.resources.size}, Prompts: ${provider.prompts.size}`,
);
} else if (provider.status === 'error' && provider.error) {
logger.error(` Error: ${provider.error}`);
}
}
logger.log(`\\nāØ ${connectedCount}/${providers.length} providers connected successfully`);
if (connectedCount > 0) {
const totalTools = this.providerManager.getAllTools().length;
const unifiedTools = this.workItemsManager.createUnifiedTools().length;
const additionalTools = this.createAdditionalTools().length;
logger.log(`\\nš Available tools: ${totalTools + unifiedTools + additionalTools} total`);
logger.log(` - Provider tools: ${totalTools}`);
logger.log(` - Unified work item tools: ${unifiedTools}`);
logger.log(` - Management tools: ${additionalTools}`);
// Show detailed tool breakdown with unified annotations
this.printDetailedToolBreakdown();
}
logger.log(`=====================================`);
}
private printProviderToolsOnConnect(provider: ProviderInstance): void {
if (provider.tools.size === 0) {
return;
}
// Get all unified tools from all managers
const workItemTools = this.workItemsManager.createUnifiedTools();
const repositoryTools = this.repositoryManager.createUnifiedTools();
const projectTools = this.projectManager.createUnifiedTools();
const mergeRequestTools = this.mergeRequestManager.createUnifiedTools();
const pipelineTools = this.pipelineManager.createUnifiedTools();
const searchTools = this.searchManager.createUnifiedTools();
const branchTools = this.branchManager.createUnifiedTools();
const commitTools = this.commitManager.createUnifiedTools();
const allUnifiedTools = [
...workItemTools,
...repositoryTools,
...projectTools,
...mergeRequestTools,
...pipelineTools,
...searchTools,
...branchTools,
...commitTools,
];
const unifiedToolPatterns = new Map<string, string>();
// Build comprehensive unified tool pattern map
for (const tool of allUnifiedTools) {
switch (tool.name) {
// Work Items
case 'nexus_list_work_items':
unifiedToolPatterns.set('list.*work.*item', 'nexus_list_work_items');
unifiedToolPatterns.set('get.*work.*item', 'nexus_list_work_items');
unifiedToolPatterns.set('list.*issue', 'nexus_list_work_items');
unifiedToolPatterns.set('get.*issue', 'nexus_list_work_items');
break;
case 'nexus_create_work_item':
unifiedToolPatterns.set('create.*work.*item', 'nexus_create_work_item');
unifiedToolPatterns.set('create.*issue', 'nexus_create_work_item');
break;
case 'nexus_update_work_item':
unifiedToolPatterns.set('update.*work.*item', 'nexus_update_work_item');
unifiedToolPatterns.set('update.*issue', 'nexus_update_work_item');
break;
case 'nexus_transfer_work_item':
unifiedToolPatterns.set('transfer.*work.*item', 'nexus_transfer_work_item');
unifiedToolPatterns.set('move.*issue', 'nexus_transfer_work_item');
break;
// Repositories
case 'nexus_list_repositories':
unifiedToolPatterns.set('list.*repositor', 'nexus_list_repositories');
unifiedToolPatterns.set('get.*repositor', 'nexus_list_repositories');
unifiedToolPatterns.set('list.*repo', 'nexus_list_repositories');
unifiedToolPatterns.set('search.*repositor', 'nexus_list_repositories');
break;
case 'nexus_get_repository':
unifiedToolPatterns.set('get.*repository$', 'nexus_get_repository');
unifiedToolPatterns.set('get.*repo$', 'nexus_get_repository');
unifiedToolPatterns.set('repository.*info', 'nexus_get_repository');
break;
case 'nexus_list_files':
unifiedToolPatterns.set('list.*file', 'nexus_list_files');
unifiedToolPatterns.set('browse.*repo', 'nexus_list_files');
unifiedToolPatterns.set('get.*content.*list', 'nexus_list_files');
break;
case 'nexus_get_file_content':
unifiedToolPatterns.set('get.*file.*content', 'nexus_get_file_content');
unifiedToolPatterns.set('read.*file', 'nexus_get_file_content');
unifiedToolPatterns.set('get.*blob', 'nexus_get_file_content');
break;
// Projects
case 'nexus_list_projects':
unifiedToolPatterns.set('list.*project', 'nexus_list_projects');
unifiedToolPatterns.set('list.*organization', 'nexus_list_projects');
unifiedToolPatterns.set('list.*group', 'nexus_list_projects');
unifiedToolPatterns.set('list.*org', 'nexus_list_projects');
break;
case 'nexus_get_project':
unifiedToolPatterns.set('get.*project$', 'nexus_get_project');
unifiedToolPatterns.set('get.*organization$', 'nexus_get_project');
unifiedToolPatterns.set('get.*group$', 'nexus_get_project');
unifiedToolPatterns.set('get.*org$', 'nexus_get_project');
break;
case 'nexus_list_project_members':
unifiedToolPatterns.set('list.*member', 'nexus_list_project_members');
unifiedToolPatterns.set('get.*member', 'nexus_list_project_members');
unifiedToolPatterns.set('list.*collaborator', 'nexus_list_project_members');
break;
// Merge Requests / Pull Requests
case 'nexus_list_merge_requests':
unifiedToolPatterns.set('list.*pull.*request', 'nexus_list_merge_requests');
unifiedToolPatterns.set('list.*merge.*request', 'nexus_list_merge_requests');
unifiedToolPatterns.set('list.*pr', 'nexus_list_merge_requests');
unifiedToolPatterns.set('list.*mr', 'nexus_list_merge_requests');
break;
case 'nexus_get_merge_request':
unifiedToolPatterns.set('get.*pull.*request', 'nexus_get_merge_request');
unifiedToolPatterns.set('get.*merge.*request', 'nexus_get_merge_request');
unifiedToolPatterns.set('get.*pr$', 'nexus_get_merge_request');
unifiedToolPatterns.set('get.*mr$', 'nexus_get_merge_request');
break;
case 'nexus_create_merge_request':
unifiedToolPatterns.set('create.*pull.*request', 'nexus_create_merge_request');
unifiedToolPatterns.set('create.*merge.*request', 'nexus_create_merge_request');
unifiedToolPatterns.set('create.*pr$', 'nexus_create_merge_request');
unifiedToolPatterns.set('create.*mr$', 'nexus_create_merge_request');
break;
case 'nexus_merge_merge_request':
unifiedToolPatterns.set('merge.*pull.*request', 'nexus_merge_merge_request');
unifiedToolPatterns.set('merge.*merge.*request', 'nexus_merge_merge_request');
unifiedToolPatterns.set('merge.*pr$', 'nexus_merge_merge_request');
unifiedToolPatterns.set('merge.*mr$', 'nexus_merge_merge_request');
break;
// Pipelines / Workflows / Builds
case 'nexus_list_pipelines':
unifiedToolPatterns.set('list.*pipeline', 'nexus_list_pipelines');
unifiedToolPatterns.set('list.*workflow', 'nexus_list_pipelines');
unifiedToolPatterns.set('list.*build', 'nexus_list_pipelines');
unifiedToolPatterns.set('list.*action', 'nexus_list_pipelines');
break;
case 'nexus_trigger_pipeline':
unifiedToolPatterns.set('trigger.*pipeline', 'nexus_trigger_pipeline');
unifiedToolPatterns.set('run.*workflow', 'nexus_trigger_pipeline');
unifiedToolPatterns.set('start.*build', 'nexus_trigger_pipeline');
unifiedToolPatterns.set('dispatch.*workflow', 'nexus_trigger_pipeline');
break;
case 'nexus_cancel_pipeline':
unifiedToolPatterns.set('cancel.*pipeline', 'nexus_cancel_pipeline');
unifiedToolPatterns.set('cancel.*workflow', 'nexus_cancel_pipeline');
unifiedToolPatterns.set('cancel.*build', 'nexus_cancel_pipeline');
unifiedToolPatterns.set('stop.*workflow', 'nexus_cancel_pipeline');
break;
// Search
case 'nexus_search_code':
unifiedToolPatterns.set('search.*code', 'nexus_search_code');
unifiedToolPatterns.set('search.*file', 'nexus_search_code');
unifiedToolPatterns.set('code.*search', 'nexus_search_code');
break;
case 'nexus_search_repositories':
unifiedToolPatterns.set('search.*repositor', 'nexus_search_repositories');
unifiedToolPatterns.set('search.*repo', 'nexus_search_repositories');
unifiedToolPatterns.set('repository.*search', 'nexus_search_repositories');
break;
case 'nexus_search_issues':
unifiedToolPatterns.set('search.*issue', 'nexus_search_issues');
unifiedToolPatterns.set('search.*work.*item', 'nexus_search_issues');
unifiedToolPatterns.set('issue.*search', 'nexus_search_issues');
break;
case 'nexus_search_users':
unifiedToolPatterns.set('search.*user', 'nexus_search_users');
unifiedToolPatterns.set('user.*search', 'nexus_search_users');
unifiedToolPatterns.set('find.*user', 'nexus_search_users');
break;
// Branches
case 'nexus_list_branches':
unifiedToolPatterns.set('list.*branch', 'nexus_list_branches');
unifiedToolPatterns.set('get.*branch', 'nexus_list_branches');
unifiedToolPatterns.set('list.*ref', 'nexus_list_branches');
break;
case 'nexus_create_branch':
unifiedToolPatterns.set('create.*branch', 'nexus_create_branch');
unifiedToolPatterns.set('create.*ref', 'nexus_create_branch');
break;
case 'nexus_delete_branch':
unifiedToolPatterns.set('delete.*branch', 'nexus_delete_branch');
unifiedToolPatterns.set('delete.*ref', 'nexus_delete_branch');
break;
// Commits
case 'nexus_list_commits':
unifiedToolPatterns.set('list.*commit', 'nexus_list_commits');
unifiedToolPatterns.set('get.*commit', 'nexus_list_commits');
unifiedToolPatterns.set('get.*repository.*commit', 'nexus_list_commits');
break;
case 'nexus_get_commit':
unifiedToolPatterns.set('get.*commit$', 'nexus_get_commit');
unifiedToolPatterns.set('get.*repository.*commit$', 'nexus_get_commit');
break;
case 'nexus_get_commit_diff':
unifiedToolPatterns.set('get.*commit.*diff', 'nexus_get_commit_diff');
unifiedToolPatterns.set('get.*diff', 'nexus_get_commit_diff');
unifiedToolPatterns.set('compare.*commit', 'nexus_get_commit_diff');
break;
}
}
logger.log(` š Provider tools (${provider.tools.size} total, showing first 10):`);
const toolsList = Array.from(provider.tools.values())
.sort((a: Tool, b: Tool) => a.name.localeCompare(b.name))
.slice(0, 10);
for (const tool of toolsList) {
const originalToolName = tool.name.substring(provider.id.length + 1);
let annotation = '';
// Check if this tool is unified/replaced
for (const [pattern, unifiedTool] of unifiedToolPatterns) {
const regex = new RegExp(pattern, 'i');
if (regex.test(originalToolName)) {
annotation = ` [unified ā ${unifiedTool}]`;
break;
}
}
logger.log(` ā¢ ${originalToolName}${annotation}`);
}
if (provider.tools.size > 10) {
logger.log(` ... and ${provider.tools.size - 10} more tools`);
}
// Show resources and prompts summary if any
if (provider.resources.size > 0) {
logger.log(` š Resources: ${provider.resources.size}`);
}
if (provider.prompts.size > 0) {
logger.log(` š Prompts: ${provider.prompts.size}`);
}
// After all providers are connected, show total tool reduction stats
const connectedProviders = this.providerManager
.getAllProviders()
.filter((p) => p.status === 'connected');
if (
connectedProviders.length > 0 &&
connectedProviders.every((p) => p.id === provider.id || p.lastUpdated)
) {
setTimeout(() => {
this.printToolReductionStats();
}, 100); // Small delay to ensure all providers have finished connecting
}
}
private printToolReductionStats(): void {
const providers = this.providerManager.getAllProviders();
const connectedProviders = providers.filter((p) => p.status === 'connected');
if (connectedProviders.length === 0) return;
// Count total provider tools
const totalProviderTools = connectedProviders.reduce(
(sum, provider) => sum + provider.tools.size,
0,
);
// Count unified tools
const workItemTools = this.workItemsManager.createUnifiedTools();
const repositoryTools = this.repositoryManager.createUnifiedTools();
const projectTools = this.projectManager.createUnifiedTools();
const mergeRequestTools = this.mergeRequestManager.createUnifiedTools();
const pipelineTools = this.pipelineManager.createUnifiedTools();
const searchTools = this.searchManager.createUnifiedTools();
const branchTools = this.branchManager.createUnifiedTools();
const commitTools = this.commitManager.createUnifiedTools();
const managementTools = this.createAdditionalTools();
const totalUnifiedTools =
workItemTools.length +
repositoryTools.length +
projectTools.length +
mergeRequestTools.length +
pipelineTools.length +
searchTools.length +
branchTools.length +
commitTools.length +
managementTools.length;
const reductionPercentage =
totalProviderTools > 0
? Math.round(((totalProviderTools - totalUnifiedTools) / totalProviderTools) * 100)
: 0;
logger.log(`\nšÆ === TOOL AGGREGATION SUMMARY ===`);
logger.log(`š Total provider tools: ${totalProviderTools}`);
logger.log(`š§ Unified nexus tools: ${totalUnifiedTools}`);
logger.log(
`š Tool reduction: ${totalProviderTools - totalUnifiedTools} tools (-${reductionPercentage}%)`,
);
logger.log(`\nš” Benefits:`);
logger.log(` ā¢ Single interface across ${connectedProviders.length} DevOps platforms`);
logger.log(
` ā¢ Reduced complexity for AI agents (${totalUnifiedTools} vs ${totalProviderTools} tools)`,
);
logger.log(` ā¢ Fits within AI tool limits (GitHub Copilot: 128 tools max)`);
logger.log(` ā¢ Consistent naming and parameter patterns`);
logger.log(`=====================================\n`);
}
private printDetailedToolBreakdown(): void {
const providers = this.providerManager.getAllProviders();
const unifiedTools = this.workItemsManager.createUnifiedTools();
const managementTools = this.createAdditionalTools();
// Create a map of unified tool patterns to detect which provider tools are replaced
const unifiedToolPatterns = new Map<string, string>();
for (const tool of unifiedTools) {
switch (tool.name) {
case 'nexus_list_work_items':
// These provider tools would be unified under this
unifiedToolPatterns.set('list.*work.*item', 'nexus_list_work_items');
unifiedToolPatterns.set('get.*work.*item', 'nexus_list_work_items');
unifiedToolPatterns.set('list.*issue', 'nexus_list_work_items');
unifiedToolPatterns.set('get.*issue', 'nexus_list_work_items');
break;
case 'nexus_create_work_item':
unifiedToolPatterns.set('create.*work.*item', 'nexus_create_work_item');
unifiedToolPatterns.set('create.*issue', 'nexus_create_work_item');
break;
case 'nexus_update_work_item':
unifiedToolPatterns.set('update.*work.*item', 'nexus_update_work_item');
unifiedToolPatterns.set('update.*issue', 'nexus_update_work_item');
break;
case 'nexus_transfer_work_item':
unifiedToolPatterns.set('transfer.*work.*item', 'nexus_transfer_work_item');
unifiedToolPatterns.set('move.*issue', 'nexus_transfer_work_item');
break;
}
}
logger.log(`\\nš§ Tool Breakdown by Provider:`);
for (const provider of providers) {
if (provider.status !== 'connected' || provider.tools.size === 0) {
continue;
}
logger.log(`\\n š¦ ${provider.config.name} (${provider.id}):`);
const toolsList = Array.from(provider.tools.values()).sort((a, b) =>
a.name.localeCompare(b.name),
);
for (const tool of toolsList) {
const originalToolName = tool.name.substring(provider.id.length + 1); // Remove prefix
let annotation = '';
// Check if this tool is unified/replaced
for (const [pattern, unifiedTool] of unifiedToolPatterns) {
const regex = new RegExp(pattern, 'i');
if (regex.test(originalToolName)) {
annotation = ` [unified ā ${unifiedTool}]`;
break;
}
}
logger.log(` ā¢ ${originalToolName}${annotation}`);
}
}
if (unifiedTools.length > 0) {
logger.log(`\\n š Unified Tools:`);
for (const tool of unifiedTools) {
logger.log(` ā¢ ${tool.name} - ${tool.description}`);
}
}
if (managementTools.length > 0) {
logger.log(`\\n āļø Management Tools:`);
for (const tool of managementTools) {
logger.log(` ā¢ ${tool.name} - ${tool.description}`);
}
}
}
async shutdown(): Promise<void> {
logger.log(`\\nš Shutting down Project Nexus MCP Server...`);
// Provider manager will handle its own cache cleanup during shutdown
await this.providerManager.shutdown();
if (this.httpServer) {
this.httpServer.close();
}
await this.server.close();
logger.log(`ā
Server shutdown complete`);
}
}
|