arrange_canvas

Tidy a board or one section with one of four layouts. Same result as the canvas toolbar.

Plan	Quota	Changes data	Hints
All	None	Yes, positions only	idempotent

Inputs

Name	Type	Required	Limits	What it does
`canvasId`	string	Yes	1 to 100 characters	The board
`layout`	enum	Yes	`by_direction`, `masonry`, `grid`, `hero`	The layout
`sectionId`	string	No	1 to 120 characters	Arrange only this section

Layout	What it does
`by_direction`	One column per section. Art row stays above the UI grid. The default for boards with several directions
`masonry`	4 columns that keep image shapes
`grid`	Equal cells
`hero`	The first item large, the rest below

{ "name": "arrange_canvas", "arguments": { "canvasId": "c3f1a0d2-6b1e-4d8a-9f4b-0a1b2c3d4e5f", "layout": "by_direction" } }

Arranged 31 items in "Coffee launch page" with the by_direction layout.
Web link: https://gobanana.fun/c/c3f1a0d2-…

The skills call it once, after the last add_to_canvas, and do not read the board in between.

Message	Fix
“layout must be one of: by_direction, masonry, grid, hero.”	Pick a listed layout
“That section was not found on this canvas…”	Use a current `sectionId`