---
title: OpenPlanr Diagram
description: Create, edit, inspect, verify, or rerender professional offline diagrams.
url: https://openplanr.dev/docs/skills/diagram
updated: 2026-10-06
related: []
---

# OpenPlanr Diagram

Skill family: Diagrams.

Create, edit, inspect, verify, or rerender professional offline diagrams. Use for architecture, process, sequence, data, state, or relationship visuals from intent or source.

## Run it

- Claude Code: `/diagram`. If /diagram runs another command, use /planr:diagram.
- Codex: `$diagram`. With the OpenPlanr plugin for Codex, use $planr:diagram.
- Cursor: `@planr-diagram`. Cursor applies the planr-diagram rule when you mention it in chat.

## Use it to

- Create a professional diagram from English intent or Mermaid
- Inspect, verify, preview, or rerender an OpenPlanr diagram set

## Not for

- Create a product interface design
- Open a generic artifact that is not a diagram