# CATS MCP Server - Core Infrastructure Complete
**Status**: READY FOR TOOLSET INTEGRATION
**File**: `/home/vanman2025/Projects/ai-dev-marketplace/cats-mcp-server/server.py`
**Date**: 2025-10-26
## Overview
The core infrastructure for the CATS MCP server has been successfully created with a dynamic toolset loading system. The server is now ready to import and load the three toolset modules that will be created by other agents.
## Core Components
### 1. Configuration System
```python
# Environment variables
CATS_API_BASE_URL = os.getenv("CATS_API_BASE_URL", "https://api.catsone.com/v3")
CATS_API_KEY = os.getenv("CATS_API_KEY", "")
# Toolset definitions
DEFAULT_TOOLSETS = ['candidates', 'jobs', 'pipelines', 'context', 'tasks']
ALL_TOOLSETS = DEFAULT_TOOLSETS + [
'companies', 'contacts', 'activities', 'portals', 'work_history',
'tags', 'webhooks', 'users', 'triggers', 'attachments', 'backups', 'events'
]
```
### 2. API Request Handler
- `make_request()`: Async function for authenticated CATS API calls
- Supports GET, POST, PUT, PATCH, DELETE methods
- Automatic error handling and authentication
- Configurable timeout (30 seconds)
### 3. Toolset Loading System
```python
def load_toolsets(toolsets: Set[str]):
"""Load specified toolsets dynamically"""
# Imports from three modules:
# - toolsets_default.py (5 toolsets, 89 tools)
# - toolsets_recruiting.py (5 toolsets, 52 tools)
# - toolsets_data.py (7 toolsets, 21 tools)
```
**Loading Logic:**
- Checks for each toolset name or 'all'
- Calls corresponding `register_*_tools()` function
- Prints confirmation for each loaded toolset
- Reports total count
### 4. CLI Interface
```bash
# List available toolsets
python server.py --list-toolsets
# Load default toolsets (candidates, jobs, pipelines, context, tasks)
python server.py
# Load specific toolsets
python server.py --toolsets candidates,jobs
# Load all 162 tools
python server.py --toolsets all
# Use environment variable
export CATS_TOOLSETS='candidates,companies'
python server.py
```
## Toolset Organization
### DEFAULT Toolsets (89 tools)
Loaded automatically if no toolsets specified:
- **candidates** (28 tools) - Core recruiting functions
- **jobs** (40 tools) - Job management
- **pipelines** (13 tools) - Workflow management
- **context** (3 tools) - Site/user information
- **tasks** (5 tools) - Task management
### RECRUITING Toolsets (52 tools)
Extended recruiting functionality:
- **companies** (18 tools)
- **contacts** (18 tools)
- **activities** (6 tools)
- **portals** (8 tools)
- **work_history** (3 tools)
### DATA & CONFIG Toolsets (21 tools)
System configuration and data management:
- **tags** (2 tools)
- **webhooks** (4 tools)
- **users** (2 tools)
- **triggers** (2 tools)
- **attachments** (4 tools)
- **backups** (3 tools)
- **events** (5 tools)
## Expected Imports
The server expects these three modules to be created by other agents:
### 1. toolsets_default.py
Must export:
- `register_candidates_tools()`
- `register_jobs_tools()`
- `register_pipelines_tools()`
- `register_context_tools()`
- `register_tasks_tools()`
### 2. toolsets_recruiting.py
Must export:
- `register_companies_tools()`
- `register_contacts_tools()`
- `register_activities_tools()`
- `register_portals_tools()`
- `register_work_history_tools()`
### 3. toolsets_data.py
Must export:
- `register_tags_tools()`
- `register_webhooks_tools()`
- `register_users_tools()`
- `register_triggers_tools()`
- `register_attachments_tools()`
- `register_backups_tools()`
- `register_events_tools()`
## Integration Pattern
Each toolset registration function should follow this pattern:
```python
def register_candidates_tools():
"""Register all candidate-related tools"""
from server import mcp, make_request
@mcp.tool()
async def list_candidates(per_page: int = 25, page: int = 1):
"""List candidates. GET /candidates"""
return await make_request("GET", "/candidates",
params={"per_page": per_page, "page": page})
# ... more tools ...
```
## Features
1. **Selective Loading**: Load only the toolsets you need
2. **Environment Control**: Use `CATS_TOOLSETS` env var for deployment configs
3. **CLI Override**: Command-line args take precedence over env vars
4. **Validation**: Invalid toolset names are caught and reported
5. **Progress Feedback**: Real-time loading confirmations
6. **Help System**: `--list-toolsets` shows all available options
## Next Steps
The following agents should create the toolset modules:
1. **Agent 1**: Create `toolsets_default.py` with 5 toolsets (89 tools)
2. **Agent 2**: Create `toolsets_recruiting.py` with 5 toolsets (52 tools)
3. **Agent 3**: Create `toolsets_data.py` with 7 toolsets (21 tools)
## Testing
Once all toolset modules are created, test with:
```bash
# Test help system
python server.py --list-toolsets
# Test default loading
python server.py # Should load 5 DEFAULT toolsets
# Test specific toolsets
python server.py --toolsets candidates,companies
# Test all toolsets
python server.py --toolsets all # Should load all 162 tools
```
## File Location
**Absolute Path**: `/home/vanman2025/Projects/ai-dev-marketplace/cats-mcp-server/server.py`
---
**Status**: Core infrastructure complete and ready for toolset integration
**Total Lines**: 242
**Key Functions**: 2 (make_request, load_toolsets)
**Supported Toolsets**: 17
**Total Tools Target**: 162