Rerun blueprint

To change how the viewer looks, change the blueprint. This holds for a recording's layout, views and their properties, and for a table's columns, row filters and cards. Don't click through the viewer's menus to do it. With the viewer MCP, read and write the blueprint with rerun_get_blueprint and rerun_set_blueprint rather than the low-level click tools.

A blueprint decides how a recording is shown, and the recording decides what exists. Read the data, design a first layout, then verify state before assessing screenshots until it reads at a glance. The constructors are discoverable (dir(rrb), help(rrb.Spatial3DView)); this skill covers what you can't guess. Import as import rerun.blueprint as rrb.

Editing a recording's blueprint through MCP

If a request could apply to multiple views and the intended view is unclear, use elicitation to ask the user which view they mean before editing.