From 6d26d021cb236aff7acb90f4f821f4b8fe757db8 Mon Sep 17 00:00:00 2001
From: Stephen Dolan <dolan.stephen1@gmail.com>
Date: Wed, 14 Jan 2026 16:43:46 -0500
Subject: [PATCH] chore(release): v2.4.0

Add search_tools capability to MCP server for dynamic tool discovery.
Tools can now be searched by name or description using regex patterns.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 package.json      |  2 +-
 src/mcp/server.ts | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index c080de0..1b2e50c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stephendolan/ynab-cli",
-  "version": "2.3.0",
+  "version": "2.4.0",
   "description": "A command-line interface for You Need a Budget (YNAB)",
   "type": "module",
   "main": "./dist/cli.js",
diff --git a/src/mcp/server.ts b/src/mcp/server.ts
index 71197f4..451745c 100644
--- a/src/mcp/server.ts
+++ b/src/mcp/server.ts
@@ -5,6 +5,24 @@ import { client } from '../lib/api-client.js';
 import { auth } from '../lib/auth.js';
 import { convertMilliunitsToAmounts } from '../lib/utils.js';
 
+const toolRegistry = [
+  { name: 'list_budgets', description: 'List all budgets in the YNAB account' },
+  { name: 'get_budget', description: 'Get detailed information about a specific budget' },
+  { name: 'list_accounts', description: 'List all accounts in a budget' },
+  { name: 'get_account', description: 'Get detailed information about a specific account' },
+  { name: 'list_categories', description: 'List all category groups and categories in a budget' },
+  { name: 'get_category', description: 'Get detailed information about a specific category' },
+  { name: 'list_transactions', description: 'List transactions with optional filtering' },
+  { name: 'get_transaction', description: 'Get detailed information about a specific transaction' },
+  { name: 'list_transactions_by_account', description: 'List transactions for a specific account' },
+  { name: 'list_transactions_by_category', description: 'List transactions for a specific category' },
+  { name: 'list_payees', description: 'List all payees in a budget' },
+  { name: 'get_budget_month', description: 'Get budget details for a specific month' },
+  { name: 'list_scheduled_transactions', description: 'List all scheduled transactions in a budget' },
+  { name: 'get_user', description: 'Get information about the authenticated user' },
+  { name: 'check_auth', description: 'Check if YNAB authentication is configured' },
+];
+
 const server = new McpServer({
   name: 'ynab',
   version: '1.0.0',
@@ -150,6 +168,23 @@ server.tool(
   async () => jsonResponse({ authenticated: await auth.isAuthenticated() })
 );
 
+server.tool(
+  'search_tools',
+  'Search for available tools by name or description using regex. Returns matching tool names.',
+  {
+    query: z.string().describe('Regex pattern to match against tool names and descriptions (case-insensitive)'),
+  },
+  async ({ query }) => {
+    try {
+      const pattern = new RegExp(query, 'i');
+      const matches = toolRegistry.filter((t) => pattern.test(t.name) || pattern.test(t.description));
+      return jsonResponse({ tools: matches });
+    } catch {
+      return jsonResponse({ error: 'Invalid regex pattern' });
+    }
+  }
+);
+
 export async function runMcpServer() {
   const transport = new StdioServerTransport();
   await server.connect(transport);