Name every cell

prompt card

- 1Every cell must have a descriptive name. Name each cell's function, such as `def plot_activity_heatmap():`, instead of leaving it as the unnamed `def _()`.

Hover or tab to a highlight to see why it matters.

Interacts with

Put this rule in the same AGENTS.md as the sandwich rule. With names in place, you can ask for changes to a cell by name, and the marimo-pair skill makes them in your live marimo notebook. Install it with npx skills add marimo-team/marimo-pair.

AGENTS.md+marimo-pair skill

prompt card · v0.2 · Oct 22, 2026

- Every cell must have a descriptive name. Name each cell's function, such as `def plot_activity_heatmap():`, instead of leaving it as the unnamed `def _()`.