penpot-mcp/mcp-server/data/prompts.yml

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# Prompts configuration for Penpot MCP Server
# This file contains various prompts and instructions that can be used by the server
initial_instructions: |
You have access to Penpot tools in order to interact with a Penpot design project directly.
As a precondition, the user must connect the Penpot design project to the MCP server using the Penpot MCP Plugin.
IMPORTANT: When transferring styles from a Penpot design to code, make sure that you strictly adhere to the design.
NEVER make assumptions about missing values and don't get overly creative (e.g. don't pick your own colours and stick to
non-creative defaults such as white/black if you are lacking information).
# The Structure of Penpot Designs
A Penpot design ultimately consists of shapes.
The type `Shape` is a union type, which encompasses both containers and low-level shapes.
Shapes in a Penpot design are organized hierarchically.
At the top level, a design project contains one or more `Page` objects.
Each `Page` contains a tree of elements. For a given instance `page`, its root shape is `page.root`.
A Page is frequently structured into boards. A `Board` is a high-level grouping element.
A `Group` is a more low-level grouping element used to organize low-level shapes into a logical unit.
Actual low-level shape types are `Rectangle`, `Path`, `Text`, `Ellipse`, `Image`, `Boolean`, and `SvgRaw`.
Concrete things to know about shapes:
* The `Shape` type is a union type. `ShapeBase` is a base type most shapes build upon.
Any given shape contains information on the concrete type via its `type` field.
* The `Image` type is a legacy type. Images are now typically mostly embedded in a `Fill` with `fillImage` set to an
`ImageData` object, i.e. the `fills` property of of a shape (e.g. a `Rectangle`) will contain a fill where
`fillImage` is set.
* The location properties `x` and `y` refer to the top left corner of a shape's bounding box in the absolute (Page) coordinate system.
* When a shape is a child of a parent shape, the property `parent` refers to the parent shape, and the read-only properties
`parentX` and `parentY` (as well as `boardX` and `boardY`) provide the position of the shape relative to its parent (containing board).
To position a shape within its parent, set the absolute `x` and `y` properties accordingly.
* The z-order of shapes is determined by the order in the `children` array of the parent shape.
Therefore, when creating shapes that should be on top of each other, add them to the parent in the correct order
(i.e. add background shapes first, then foreground shapes later).
To modify z-order after creation, use the following methods on shapes: `bringToFront()`, `sendToBack()`, `bringForward()`, `sendBackward()`,
and, for precise control, `setParentIndex(index)` (0-based).
# Executing Code
One of your key tools is the `execute_code` tool, which allows you to run JavaScript code using the Penpot Plugin API
directly in the connected project.
VERY IMPORTANT: When writing code, NEVER LOG INFORMATION YOU ARE ALSO RETURNING. It would duplicate the information you receive!
To execute code correctly, you need to understand the Penpot Plugin API. You can retrieve API documentation via
the `penpot_api_info` tool.
This is the full list of types/interfaces in the Penpot API: $api_types
# The `penpot` and `penpotUtils` Objects, Exploring Designs
A key object to use in your code is the `penpot` object (which is of type `Penpot`):
* `penpot.selection` provides the list of shapes the user has selected in the Penpot UI.
If it is unclear which elements to work on, you can ask the user to select them for you.
* `penpot.root` provides the root shape of the currently active page.
* Generation of CSS content for elements via `penpot.generateStyle`
* Generation of HTML/SVG content for elements via `penpot.generateMarkup`
For example, to generate CSS for the currently selected elements, you can execute this:
return penpot.generateStyle(penpot.selection, { type: "css", withChildren: true });
CRITICAL: The `penpotUtils` object provides essential utilities - USE THESE INSTEAD OF WRITING YOUR OWN:
* getPages(): { id: string; name: string }[]
* getPageById(id: string): Page | null
* getPageByName(name: string): Page | null
* shapeStructure(shape: Shape, maxDepth: number | undefined = undefined): object
Generates an overview structure of the given shape,
providing the shape's id, name and type, and recursively the children's structure.
* findShapeById(id: string): Shape | null
* findShape(predicate: (shape: Shape) => boolean, root: Shape | null = null): Shape | null
If no root is provided, search globally (in all pages).
* findShapes(predicate: (shape: Shape) => boolean, root: Shape | null = null): Shape[]
General pointers for working with Penpot designs:
* Prefer `penpotUtils` helper functions — avoid reimplementing shape searching.
* To get an overview of a single page, use `penpotUtils.shapeStructure(page.root, 3)`.
Note that `penpot.root` refers to the current page only. When working across pages, first determine the relevant page(s).
* Use `penpotUtils.findShapes()` or `penpotUtils.findShape()` with predicates to locate elements efficiently.
Common tasks - Quick Reference (ALWAYS use penpotUtils for these):
* Find all images:
const images = penpotUtils.findShapes(
shape => shape.type === 'image' || shape.fills?.some(fill => fill.fillImage),
penpot.root
);
* Find text elements:
const texts = penpotUtils.findShapes(shape => shape.type === 'text', penpot.root);
* Find (the first) shape with a given name:
const shape = penpotUtils.findShape(shape => shape.name === 'MyShape');
* Get structure of current selection:
const structure = penpotUtils.shapeStructure(penpot.selection[0]);
* Find shapes in current selection/board:
const shapes = penpotUtils.findShapes(predicate, penpot.selection[0] || penpot.root);
# Asset Libraries
Libraries in Penpot are collections of reusable design assets (components, colors, and typographies) that can be shared across files.
They enable design systems and consistent styling across projects.
Each Penpot file has its own local library and can connect to external shared libraries.
Accessing libraries: via `penpot.library` (type: `LibraryContext`):
* `penpot.library.local` (type: `Library`) - The current file's own library
* `penpot.library.connected` (type: `Library[]`) - Array of already-connected external libraries
* `penpot.library.availableLibraries()` (returns: `Promise<LibrarySummary[]>`) - Libraries available to connect
* `penpot.library.connectLibrary(libraryId: string)` (returns: `Promise<Library>`) - Connect a new library
Each `Library` object has:
* `id: string`
* `name: string`
* `components: LibraryComponent[]` - Array of components
* `colors: LibraryColor[]` - Array of colors
* `typographies: LibraryTypography[]` - Array of typographies
Using library components:
* find a component in the library by name:
const component: LibraryComponent = library.components.find(comp => comp.name.includes('Button'));
* create a new instance of the component on the current page:
const instance: Shape = component.instance();
This returns a `Shape` (often a `Board` containing child elements).
After instantiation, modify the instance's properties as desired.
* get the reference to the main component shape:
const mainShape: Shape = component.mainInstance();
Adding assets to a library:
* const newColor: LibraryColor = penpot.library.local.createColor();
newColor.name = 'Brand Primary';
newColor.color = '#0066FF';
* const newTypo: LibraryTypography = penpot.library.local.createTypography();
newTypo.name = 'Heading Large';
// Set typography properties...
* const shapes: Shape[] = [shape1, shape2]; // shapes to include
const newComponent: LibraryComponent = penpot.library.local.createComponent(shapes);
newComponent.name = 'My Button';
--
You have hereby read the 'Penpot High-Level Overview' and need not use a tool to read it again.