# Clean MCP Implementation Plan

## 🎯 **Goal: Simple Remote MCP Access**

**What you want**: Pass a URL to a colleague so they can connect to the MCP server with authentication and different permissions based on their email.

## 🧹 **Cleanup Status: DONE**

### ✅ **Removed Messy Files:**

- `oauth_handler.py` - Separate OAuth process (overcomplicated)
- `server_github_oauth.py` - Messy server variant #1
- `server_github_oauth_simple.py` - Messy server variant #2
- `test_user_auth.py` - Test file in wrong location
- `setup_github_oauth.md` - Confusing setup docs
- All log files (`*.log`)

### ✅ **Clean Codebase Now:**

```
point-topic-mcp/
├── server.py                    # ✅ Main MCP server (stdio only)
├── config/users.yaml           # ✅ User permissions (KEEP - this is good!)
├── src/                        # ✅ Clean organized code
│   ├── auth/                   # ✅ User management system
│   ├── connectors/             # ✅ Snowflake connection
│   ├── core/                   # ✅ Context assembly
│   └── prompts/                # ✅ Dataset schemas
├── .dev/progress_reports/      # ✅ Documentation (KEEP)
└── deploy.sh                   # ✅ Simple deployment script
```

## 🛤️ **Clear Path Forward**

### **Current State:**

- ✅ Working stdio MCP server (`server.py`)
- ✅ Excellent user permission system (`config/users.yaml`)
- ✅ All MCP tools working (query execution, dataset context)
- ✅ Clean codebase organization

### **What We Need:**

1. **Switch from stdio → HTTP transport** (for remote access)
2. **Add simple authentication** (so colleagues can log in)
3. **Keep existing user permissions** (email-based access control)

## 🎯 **Simple Implementation Strategy**

### **Phase 1: HTTP Transport Only**

**Goal**: Get remote access working (no auth yet)

```python
# server_http.py - Convert existing server.py to HTTP
from mcp.server.fastmcp import FastMCP

mcp = FastMCP("Point Topic MCP")

# Same exact tools (no changes needed!)
@mcp.tool()
def execute_query(sql_query: str) -> str:
    # Existing implementation - UNCHANGED
    pass

@mcp.tool()
def assemble_dataset_context(dataset_names: List[str]) -> str:
    # Existing implementation - UNCHANGED
    pass

if __name__ == "__main__":
    # Change ONLY this line:
    mcp.run(transport="streamable-http", host="0.0.0.0", port=8000)
```

**Test**: `curl http://localhost:8000/mcp` works

### **Phase 2: Add Authentication**

**Goal**: GitHub OAuth + existing user permissions

```python
# Add authentication to server_http.py
from mcp.server.auth import OAuthClientProvider  # Official MCP auth

# Add auth config
mcp = FastMCP(
    "Point Topic MCP",
    # Use official MCP auth patterns from SDK
    auth=OAuthClientProvider(...)
)

# Tools remain EXACTLY the same!
# User management stays in config/users.yaml
```

**Test**: Colleague gets GitHub login → gains access based on email

### **Phase 3: Production Ready**

- HTTPS deployment
- Proper domain/SSL
- Monitoring

## 🔑 **Key Principles**

1. **Minimal Changes**: Your existing tools and user system are PERFECT - don't touch them
2. **Official MCP SDK**: Use FastMCP from official SDK (no more confusion!)
3. **One Thing at a Time**: HTTP first, then auth, then production
4. **Keep It Simple**: No complex OAuth handlers or multiple server variants

## 📋 **Next Session Plan**

1. **Read official MCP SDK docs** (we have them locally now)
2. **Create `server_http.py`** - exact copy of `server.py` but with HTTP transport
3. **Test HTTP access works** - verify tools work over HTTP
4. **Add authentication** - using official MCP auth patterns
5. **Deploy and test** - colleague can access via URL

## 🧙‍♂️ **Wizard's Promise**

- No more confusion about FastMCP vs third-party libraries
- No more multiple server variants
- No more messy file organization
- Focus on the ACTUAL goal: remote access with auth

**The user permission system you have is excellent - we're keeping that!**

---

**Ready for a clean implementation in the next chat!** ✨
