Free Claude Skills

Turn Claude into a professional diagram generator

Install in 30 seconds. Ask Claude to draw any diagram — BPMN, C4 architecture, UML, ERD, network maps, org charts — and it generates a precise, editable diagram on flow-chart.io.

Download skill (free) Try flow-chart.io

Available skills

diagram-generator
Free

Teaches Claude to identify the right diagram type from a plain-language description, compose a precise notation-aware prompt, and direct you to flow-chart.io for generation. Works for 17 diagram types with notation enforcement.

BPMN 2.0 C4 model UML ERD Network Cloud architecture Org chart Swimlane Sequence diagram Gantt Mind map STRIDE
↓ Download .md View raw

How to install a skill in Claude

  1. Download the .md skill file above.
  2. Open Claude.ai and click your profile → Customize.
  3. Go to Skills → click + → Upload a skill.
  4. Select the downloaded diagram-generator.md file and confirm.
  5. The skill is now installed. Ask Claude: "Draw me a C4 architecture diagram for a Node.js SaaS with Postgres and Redis" — it picks the right notation, composes the prompt, and links you to flow-chart.io.