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FalkorDB-MCPServer — Full Project Code Review

You are an expert TypeScript/Node.js engineer with deep knowledge of the Model Context Protocol (MCP), graph databases, and production server design. Your task is to conduct a thorough code review of the FalkorDB-MCPServer project at its current state on main: https://github.com/FalkorDB/FalkorDB-MCPServer

Clone the repository and read every file before reviewing. The project was recently significantly refactored — it now uses the MCP TypeScript SDK directly (stdio transport) instead of a custom Hono HTTP server, and brings in a richer layered architecture. Review it accordingly.

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1. Architecture & Design

• Does the overall src/ structure make sense? Evaluate the separation between services/, mcp/, errors/, config/, models/, and utils/.

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from langchain_community.llms import Ollama

from langchain_core.prompts import ChatPromptTemplate
from langchain_core.output_parsers import StrOutputParser

import time

MODEL = "phi3"
SYSTEM_PROMPT = "You are a world class technical documentation writer."

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package com.falkordb;

import org.neo4j.driver.Driver;
import org.neo4j.driver.GraphDatabase;
import org.neo4j.driver.Result;
import org.neo4j.driver.Record;


public class BoltVectorDemo {
  public static void main(String args[]) {

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package com.falkordb;

import redis.clients.jedis.UnifiedJedis;
import redis.clients.jedis.graph.ResultSet;
import redis.clients.jedis.graph.Record;

public class FalkorDBVectorDemo {
  public static void main(String args[]) {
    try (UnifiedJedis jedis = new UnifiedJedis("redis://localhost:6379")) {

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package com.falkordb;

import redis.clients.jedis.UnifiedJedis;
import redis.clients.jedis.graph.ResultSet;
import redis.clients.jedis.graph.Record;

public class FalkorDBBench {
	public static void main(String args[]) {
		try (UnifiedJedis jedis = new UnifiedJedis("redis://localhost:6379")) {

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#### GETEX
import redis
r = redis.Redis()
r.set(“somekey”, “hello”)
r.getex(“somekey”, ex=15)
### >>> returns “Hello”
r.ttl(“somekey”)
### >>> 15

#### CLIENT INFO AND KILL

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import argparse
from sys import platform

from models import *
from utils.datasets import *
from utils.utils import *


def export():
    img_size = (320, 192)

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Redis Software Grant and Contributor License Agreement

In order to clarify the intellectual property license granted in the Contribution (defined below) Redis, Inc. (“Redis”) requires a Software Grant and Contributor License Agreement (“Agreement”) that has been signed or accepted by each contributor indicating an agreement to the license terms below. This license is for your protection as a contributor as well as the protection of Redis and its users; it does not change your rights to use your own Contribution for any other purpose.

You accept and agree to the following terms and conditions for the Contribution. Except for the license granted herein to Redis and recipients of software distributed by Redis, You reserve all right, title, and interest in and to Your Contribution.

1. Definitions. “You” (or “Your”) shall mean the copyright owner or legal entity authorized by the copyright owner that is making this Agreement with Redis. For legal entities, the entity making a Contribution and all other entiti

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Operating system: Linux
                  0.0.0 Linux 3.2.0-53-virtual #81-Ubuntu SMP Thu Aug 22 21:21:26 UTC 2013 x86_64
CPU: amd64
     family 16 model 8 stepping 1
     2 CPUs
 
Crash reason:  SIGSEGV
Crash address: 0x209ccf8
 
Thread 0 (crashed)