# MCP Server Configuration Fixes

**Date**: October 4, 2025  
**Status**: ✅ All Issues Resolved

---

## Issues Fixed

### 1. ❌ Neo4j Authentication Failure

**Problem**: Server crashed on startup with:
```
RuntimeError: Neo4j authentication failed. Check username/password.
```

**Root Cause**: `AgentMem()` was initialized without passing the `Config` object, so it couldn't load environment variables from `.env` file.

**Solution**: Updated `server.py` to explicitly pass config:
```python
from agent_mem.config import get_config
config = get_config()
agent_mem = AgentMem(config=config)
```

---

### 2. ❌ Module Import Errors

**Problem**: Multiple `ModuleNotFoundError` errors:
- `No module named 'server'`
- `No module named 'schemas'`

**Root Cause**: Using absolute imports instead of relative imports within the `agent_mem_mcp` package.

**Solution**: Fixed imports in all files:
- `__init__.py`: `from .server import server`
- `__main__.py`: `from agent_mem_mcp.server import server`
- `run.py`: `from agent_mem_mcp.server import server`
- `server.py`: `from .schemas import ...`

---

### 3. ❌ Test Files in Root Directory

**Problem**: Test files scattered in root directory:
- `add_sample_data.py`
- `test_mcp_client.py`
- `mcp_dev.py` (didn't exist yet)

**Root Cause**: Files placed at root for convenience during development.

**Solution**: 
- Created `agent_mem_mcp/tests/` directory
- Moved all test utilities to `agent_mem_mcp/tests/`
- Updated documentation to reflect new paths

---

### 4. ❌ Incomplete Claude Desktop Config

**Problem**: Documentation showed placeholder passwords and used relative module import.

**Root Cause**: Generic example config not matching actual deployment needs.

**Solution**: Updated documentation with:
- **Absolute path** (recommended for reliability)
- **Actual credentials format** from `.env` file
- **Clear notes** about matching credentials

---

## Changes Made

### Code Changes

1. **`server.py`** - Pass Config to AgentMem
2. **`__init__.py`** - Use relative import (`.server`)
3. **`__main__.py`** - Use package import (`agent_mem_mcp.server`)
4. **`run.py`** - Use package import (`agent_mem_mcp.server`)

### File Organization

```
Before:
├── add_sample_data.py
├── test_mcp_client.py
├── agent_mem_mcp/
│   ├── server.py
│   └── ...

After:
├── agent_mem_mcp/
│   ├── server.py
│   ├── tests/
│   │   ├── add_sample_data.py
│   │   └── test_mcp_client.py
│   └── ...
```

### Documentation Updates

1. **README.md** - Updated Quick Start commands and Claude Desktop config
2. **agent_mem_mcp/README.md** - Updated test file paths
3. **docs/CLEANUP_SUMMARY.md** - Moved to `docs/archive/`

---

## Testing Results

### ✅ Server Startup

```powershell
PS> py agent_mem_mcp\run.py
Starting AgentMem MCP server...
# Server waiting for stdio input (success!)
```

No authentication errors, all services connected:
- ✅ PostgreSQL connected
- ✅ Neo4j connected
- ✅ Ollama connected
- ✅ AgentMem initialized

### ✅ Import Resolution

All modules import correctly:
- ✅ `agent_mem_mcp.server`
- ✅ `agent_mem_mcp.schemas`
- ✅ `agent_mem.config`

---

## Recommended Claude Desktop Configuration

**File**: `%APPDATA%\Claude\claude_desktop_config.json`

```json
{
  "mcpServers": {
    "agent-mem": {
      "command": "py",
      "args": [
        "path_to_agent_mem_mcp\\run.py"
      ],
      "env": {
        "POSTGRES_HOST": "localhost",
        "POSTGRES_PORT": "5432",
        "POSTGRES_USER": "postgres",
        "POSTGRES_PASSWORD": "postgres",
        "POSTGRES_DB": "agent_mem",
        "NEO4J_URI": "bolt://localhost:7687",
        "NEO4J_USER": "neo4j",
        "NEO4J_PASSWORD": "neo4jpassword",
        "OLLAMA_BASE_URL": "http://localhost:11434"
      }
    }
  }
}
```

### Key Points:

1. **Use Absolute Path**: `C:\\Users\\...\\run.py` (adjust to your installation)
2. **Match Credentials**: Ensure env vars match your `.env` file
3. **Double Backslashes**: Required in JSON on Windows

---

## Verification Steps

### 1. Check Services Running

```powershell
docker ps --filter "name=agent_mem"
```

Expected: 3 containers running (postgres, neo4j, ollama)

### 2. Verify Environment

```powershell
cat .env | Select-String "NEO4J_PASSWORD"
```

Expected: Password matches your Neo4j container

### 3. Test Server

```powershell
py agent_mem_mcp\run.py
```

Expected: "Starting AgentMem MCP server..." with no errors

### 4. Add Sample Data (Optional)

```powershell
py agent_mem_mcp\tests\add_sample_data.py
```

Expected: Creates test memories in database

### 5. Test with Client (Optional)

```powershell
py agent_mem_mcp\tests\test_mcp_client.py
```

Expected: All 3 tools work correctly

---

## Common Issues

### Issue: "Connection refused" for PostgreSQL

**Solution**: Start Docker containers:
```powershell
docker start agent_mem_postgres
```

### Issue: "Authentication failed" for Neo4j

**Solution**: Check password in `.env` matches container:
```powershell
docker exec -it agent_mem_neo4j cypher-shell -u neo4j -p neo4jpassword
```

### Issue: "Model not found" for Ollama

**Solution**: Pull embedding model:
```powershell
docker exec -it agent_mem_ollama ollama pull nomic-embed-text
```

---

## Next Steps

1. ✅ **Server Configuration** - Complete
2. ✅ **File Organization** - Complete
3. ✅ **Documentation** - Complete
4. ⏭️ **Claude Desktop Integration** - Test with actual Claude Desktop app
5. ⏭️ **End-to-End Testing** - Test all 3 tools through Claude

---

## Commits

1. **df2646a** - Initial MCP server implementation
2. **ef93e66** - Fix configuration and file organization (this commit)

---

**Status**: ✅ Ready for Claude Desktop Integration Testing
