Create a new Stella model with specified time settings

Update simulation time settings on an existing model

Add a stock (reservoir) to the current model

Update stock fields while preserving relationships

Add a flow between stocks in the current model

Update flow fields while preserving structural stock links

Add an auxiliary variable (parameter or intermediate calculation) to the current model

Update auxiliary variable fields

Add a connector (dependency arrow) between variables

Add missing dependency connectors inferred from flow and auxiliary equations

Set connector angle and/or explicit routing waypoints

Rename a stock/flow/aux and update dependent references

Delete a stock/flow/aux and clean connectors/module membership

Create a logical module/group for organizing variables

Add variables to an existing module

Remove variables from an existing module

Rename an existing module

Delete a module

Set explicit view box geometry for a module

Set module box visual style in the diagram view

Auto-place module view boxes around their member variables

Save the current model to a .stmx file

Read an existing .stmx file and load it as the current model

List built-in and user-defined templates

Get detailed metadata for one template

Load a template into the current session as a model

Save the current model as a user-defined template

List all model IDs available in the current session

Return a structured summary of the current model for agent inspection

List modules/groups in the current model

List connector metadata (uid, endpoints, angle, routing lock/points)

Validate the current model for errors and warnings

List all variables (stocks, flows, auxiliaries) in the current model

Get the XMILE XML representation of the current model (for preview)