Scripting

openpencil eval runs JavaScript against an OpenPencil document with a Figma-compatible figma global. Use it for headless batch edits, inspection, fixture setup, and automation without opening the editor UI.

Basic usage

openpencil eval design.fig -c "return figma.currentPage.children.length"

The -c flag accepts JavaScript. If the code does not start with return, OpenPencil wraps it in an async function and returns the value from that function when present.

openpencil eval design.fig -c "
  const frame = figma.createFrame()
  frame.name = 'Card'
  frame.resize(300, 200)
  frame.layoutMode = 'VERTICAL'
  frame.itemSpacing = 12
  return { id: frame.id, name: frame.name }
"

Query nodes

openpencil eval design.fig -c "
  return figma.currentPage
    .findAll((node) => node.type === 'FRAME' && node.name.includes('Button'))
    .map((button) => ({
      id: button.id,
      name: button.name,
      width: button.width,
      height: button.height
    }))
"

Modify and save

Use --write / -w to write changes back to the input file:

openpencil eval design.fig -c "
  figma.currentPage.children.forEach((node) => {
    node.opacity = 0.5
  })
" --write

Use --output / -o to write to a new file:

openpencil eval design.fig -c "figma.currentPage.name = 'Updated'" -o updated.fig

Read scripts from stdin

cat transform.js | openpencil eval design.fig --stdin --write

Live app mode

Omit the file path to run against the currently open document in the desktop app:

openpencil eval -c "return figma.currentPage.name"

The desktop app must be running with a document open.

Output

By default, non-TTY output is JSON. Use --json to force JSON output:

openpencil eval design.fig -c "return figma.currentPage.children.map((n) => n.name)" --json

Use --quiet / -q to suppress output when only writing a file.

Supported API surface

The API is intentionally close to Figma's Plugin API, but it maps to OpenPencil's scene graph and file format.

Document and pages

• figma.root
• figma.currentPage
• figma.currentPage.selection
• figma.getNodeById(id)
• figma.createPage()

Node creation

• figma.createFrame()
• figma.createRectangle()
• figma.createEllipse()
• figma.createText()
• figma.createLine()
• figma.createPolygon()
• figma.createStar()
• figma.createVector()
• figma.createComponent()
• figma.createSection()

Tree operations

• node.children
• node.parent
• node.appendChild(child)
• node.insertChild(index, child)
• node.clone()
• node.remove()
• node.findAll(callback?)
• node.findOne(callback)
• node.findChild(callback)
• node.findChildren(callback?)
• figma.group(nodes, parent)
• figma.ungroup(node)

Components

• figma.createComponentFromNode(node)
• component.createInstance()
• instance.mainComponent

Variables

• figma.getLocalVariables(type?)
• figma.getVariableById(id)
• figma.getLocalVariableCollections()
• figma.getVariableCollectionById(id)
• figma.createVariable(name, type, collectionId, value?)
• figma.setVariableValue(variableId, modeId, value)
• figma.deleteVariable(id)
• figma.createVariableCollection(name)
• figma.deleteVariableCollection(id)
• figma.bindVariable(nodeId, field, variableId)
• figma.unbindVariable(nodeId, field)

Properties

Common node properties are readable/writable through the proxy, including:

• Geometry: x, y, width, height, rotation, resize(width, height)
• Appearance: fills, strokes, effects, opacity, visible, locked, blendMode, clipsContent
• Radius: cornerRadius, topLeftRadius, topRightRadius, bottomRightRadius, bottomLeftRadius
• Text: characters, fontSize, fontName, fontWeight, alignment, line height, letter spacing, style-run helpers
• Auto-layout: layoutMode, primaryAxisAlignItems, counterAxisAlignItems, itemSpacing, padding, sizing, and layout positioning fields
• Stroke helpers: strokeWeight, strokeAlign, dashPattern

Utilities

• figma.mixed
• figma.createImage(data)
• figma.loadFontAsync(fontName) no-ops because OpenPencil does not gate text edits on plugin font loading
• figma.listAvailableFontsAsync() returns host-provided fonts when available
• figma.notify(message) logs a warning in headless mode
• figma.viewport

Not yet Figma-compatible

These Figma APIs are not exposed as compatible helpers yet:

• node.exportAsync()
• node.setBoundVariable(field, variable)
• node.detachInstance()
• figma.combineAsVariants(components, parent)
• Figma style APIs such as figma.createPaintStyle() / figma.createTextStyle()
• Full vector boolean operation parity

Use OpenPencil CLI export commands, core tools, or direct scene-graph helpers where available.