fusion-mcp-cli/IMPLEMENTATION.md

CLI tool for Fusion MCP Hub - Manage custom and community MCP servers. Web App: https://fusion-mcp-hub.vercel.app (General) | https://fusion-mcp-prod.isc-code-connect.dal.app.cirrus.ibm.com (IBM)

# Fusion MCP CLI - Implementation Summary

## Phase 1: Setup & Authentication ✅ COMPLETE

### What We Built

#### 1. **CLI Package Structure**

```
fusion-mcp-cli/
├── src/
│   ├── commands/
│   │   ├── auth.ts          # ✅ Authentication commands
│   │   ├── workspace.ts     # ✅ Workspace operations
│   │   └── server.ts        # ✅ Server operations
│   ├── api/
│   │   └── client.ts        # ✅ API client for backend
│   ├── utils/
│   │   └── config.ts        # ✅ Local config management
│   └── index.ts             # ✅ CLI entry point
├── package.json
├── tsconfig.json
├── .gitignore
└── README.md
```

#### 2. **Implemented Commands**

**Authentication (`fmcp auth`)**

- ✅ `login` - Authenticate with API token
- ✅ `logout` - Clear authentication
- ✅ `status` - Check authentication status and token validity

**Workspace (`fmcp workspace`)**

- ✅ `list` - List all workspaces
- ✅ `use <id>` - Switch to a workspace
- ✅ `current` - Show current workspace

**Server (`fmcp server`)**

- ✅ `list` - List all servers in workspace
- ✅ `info <id>` - Show server details
- ✅ `pull <id>` - Download server to local (download URL)
- ✅ `push <id>` - Push local changes (placeholder)
- ✅ `status <id>` - Check sync status
- ✅ `history <id>` - View change history
- ✅ `rollback <id> <version>` - Rollback to previous version

#### 3. **Core Features**

**Configuration Management**

- Stores config in `~/.fusion-mcp/config.json`
- Tracks: API URL, API token, current workspace
- Auto-creates config directory
- Read/write/update/clear operations

**API Client**

- Axios-based HTTP client
- Bearer token authentication
- Error handling with interceptors
- Type-safe response interfaces
- Methods for all server operations

**User Experience**

- Colorful terminal output (chalk)
- Loading spinners (ora)
- Interactive prompts (inquirer)
- Data tables (console-table-printer)
- Confirmation dialogs for destructive operations

#### 4. **Technology Stack**

- **Language**: TypeScript
- **CLI Framework**: Commander.js
- **HTTP Client**: Axios
- **UI Libraries**:
  - chalk (colors)
  - ora (spinners)
  - inquirer (prompts)
  - console-table-printer (tables)

## Next Steps (Phase 2 & 3)

### Phase 2: Backend Integration (REQUIRED)

Before the CLI can be fully functional, we need to implement:

#### 1. **API Token System in Web UI** (HIGH PRIORITY)

- [ ] Add API tokens collection to MongoDB
- [ ] Create Settings page in web UI
- [ ] Token generation endpoint
- [ ] Token verification endpoint
- [ ] Token revocation endpoint

#### 2. **API Endpoints** (Update existing endpoints)

- [ ] `/api/auth/verify-token` - Verify CLI token
- [ ] `/api/auth/verify` - Check token validity
- [ ] `/api/workspaces` - List user workspaces
- [ ] `/api/custom-servers` - List servers (already exists)
- [ ] `/api/custom-servers/:id` - Get server (already exists)
- [ ] `/api/custom-servers/:id/download` - Get download URL (already exists)
- [ ] `/api/custom-servers/:id/rollback` - Rollback (already exists ✅)

### Phase 3: Advanced Features (Week 3)

- [ ] Local file management (pull creates local directory)
- [ ] Diff algorithms (compare local vs remote)
- [ ] Interactive merge
- [ ] Conflict detection
- [ ] Push with file upload

## Installation & Usage

### For Development

```bash
cd fusion-mcp-cli

# Install dependencies
npm install

# Build
npm run build

# Link globally
npm link

# Now use the CLI
fmcp --help
```

### Current Status

**Working Commands** (after backend integration):

- ✅ All auth commands
- ✅ Workspace list/use/current
- ✅ Server list/info/history/rollback

**Placeholder Commands** (need more work):

- ⚠️ Server pull (needs file download implementation)
- ⚠️ Server push (needs file upload implementation)
- ⚠️ Server status (needs local file comparison)

## Priority Implementation Order

1. **✅ DONE**: CLI package structure and commands
2. **NEXT**: API Token system in web UI
3. **NEXT**: Backend API endpoints for CLI
4. **NEXT**: Test authentication flow
5. **NEXT**: Test workspace and server operations
6. **LATER**: File download/upload for pull/push
7. **LATER**: Diff and merge functionality

## Dependencies

```json
{
  "dependencies": {
    "commander": "^11.1.0",
    "chalk": "^4.1.2",
    "inquirer": "^8.2.6",
    "axios": "^1.6.2",
    "ora": "^5.4.1",
    "console-table-printer": "^2.11.2",
    "dotenv": "^16.3.1",
    "js-yaml": "^4.1.0",
    "diff": "^5.1.0"
  }
}
```

## Notes

- CLI is separate from main Next.js app
- No monorepo complexity
- Easy to distribute via npm or git
- Can be used globally after `npm link`
- Configuration stored in user home directory
- All errors handled gracefully with helpful messages