> ## Documentation Index
> Fetch the complete documentation index at: https://docs.siftd.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Sessions

SPIN tracks execution sessions, allowing multiple team members to collaborate on the same investigation and hand off work seamlessly.

## Sessions and Collaboration

### Session Management

Each notebook execution creates a session that tracks:

* **Execution timeline** with timestamps for each cell run
* **Variable state** at each execution point
* **Output history** including errors and warnings
* **Runtime information** (which SPIN runtime was used)

### Session Handoff

SPIN enables seamless collaboration through session handoff:

1. **Initial Investigation**: Junior engineer starts troubleshooting session
2. **Escalation**: Senior engineer joins the same session without losing context
3. **AI Assistance**: AI agent can take over routine tasks while preserving state
4. **Documentation**: Complete session history becomes part of incident record

### Multi-User Sessions

* Multiple users can attach to the same session
* Real-time output sharing across all connected users
* Role-based restrictions on execution permissions
* Session ownership transfer capabilities