Use Master Templates with MCP

A master template gives a project a consistent visual style, including the canvas background, grid, axes, and default styles for points, lines, circles, text, and other objects. Through MCP, an AI client can load a master template before drawing or apply one to existing canvases.

Before you start

1. Connect the service as described in MCP Integration.
2. Choose and download a master template JSON file from Dino-GSP Master Templates.

Quick start

Once the master template is ready, tell the AI only the template source and the application scope. The client will normally call load_template automatically, so you do not need to enter tool parameters manually.

Option 1: Upload a local template

Upload the downloaded master template JSON to the conversation, then send:

Read the master template file I uploaded, apply it to every existing canvas,
and make it the default for canvases created later.
Then draw an equilateral triangle with side length 4.

Option 2: Provide a template URL

If the master template JSON is directly available through a public HTTPS URL, send:

Load the master template at https://example.com/template.json, apply it to
canvases 1 and 3, and make it the default for canvases created later.

The load_template tool

load_template loads a master template into the current MCP session. Each call needs one template source and at least one application mode.

Parameters

Parameter	Type	Required	Description
template_content	object	Exactly one template source	Inline master template JSON. Use this after the client has read a local template file.
template_url	string	Exactly one template source	A public HTTPS URL for the master template JSON.
applyToSlideIndexes	number[]	At least one application mode	Apply immediately to these 1-based canvas numbers. The array cannot be empty.
applyToAllSlides	boolean	At least one application mode	When true, apply immediately to every existing canvas. This takes precedence over applyToSlideIndexes.
setAsGlobal	boolean	At least one application mode	When true, use the template as the default for canvases created later in the current session. It can be combined with either immediate application option.

Every call must follow these rules:

• Provide exactly one of template_content and template_url.
• Provide applyToSlideIndexes, applyToAllSlides: true, or setAsGlobal: true.
• Canvas numbers start at 1 and cannot exceed the number of canvases in the current project.

How to choose

Goal	Parameter choice
Use an uploaded template or a template already read by the client	template_content
Use a public remote template	template_url
Apply only to selected existing canvases	applyToSlideIndexes
Apply to every existing canvas	applyToAllSlides: true
Apply only to canvases created later	setAsGlobal: true
Apply to existing and future canvases	Combine applyToAllSlides: true and setAsGlobal: true

INFO

If both applyToSlideIndexes and applyToAllSlides: true are provided, applyToAllSlides takes precedence.

FAQ

Why did existing canvases not change after loading a template?

If you used only setAsGlobal: true, the template applies only to canvases created later in the current session. Also set applyToAllSlides: true, or select existing canvases with applyToSlideIndexes.

Why did one object not fully adopt the template style?

A master template defines type defaults. If an existing object has a per-object style saved by object ID, that style is preserved. Ask the AI to clear or adjust that object's individual style and check again.

How is template use billed?

Each successful load_template call is billed as a basic tool call. See MCP Billing for details.