Systems

What is a system?

A system is a lightweight grouping of related threat models within a workspace. If you have 50 feature-level threat models for a single product, a system lets you organize them together.

A threat model can belong to at most one system. Models that aren't added to any system remain standalone.

Creating a system

1. Navigate to Systems in the sidebar
2. Click Create System
3. Enter a name and optional description
4. Optionally select models to add immediately

Adding models to a system

On the system detail page, click Add Model to see a list of unaffiliated models in the current workspace. Select a model to add it.

If a model already belongs to another system, you must remove it from that system first.

Removing models

Click the remove button on any model card in the system detail view. The model becomes unaffiliated — it is not deleted, just removed from the system.

Deleting a system

Deleting a system removes the grouping only. All member models become unaffiliated and are not deleted.

MCP tools

Systems are available via MCP:

• list_systems — list all systems in the workspace
• get_system — get a system with model summaries
• create_system — create a new system
• add_model_to_system — add a model to a system