Diagram

What This Skill Does

The Diagram skill for OpenClaw empowers users to transform abstract technical concepts, system architectures, and process flows into clear, visual representations. By leveraging Mermaid.js, PlantUML, and ASCII formats, this skill converts natural language descriptions into structured diagram code. It is designed to act as a bridge between complex documentation and intuitive understanding, supporting various types including flowcharts, sequence diagrams, ER models, and class diagrams. The skill prioritizes clarity over complexity, ensuring that generated diagrams remain readable, maintainable, and effective for communication.

Installation

To integrate this skill into your OpenClaw environment, execute the following command in your terminal: clawhub install openclaw/skills/skills/ivangdavila/diagram

Use Cases

• Software Architecture: Mapping out microservices, cloud infrastructure components, and their connectivity.
• Process Documentation: Visualizing user onboarding flows, data processing pipelines, or decision trees.
• API Design: Defining the lifecycle of requests and responses through sequence diagrams.
• Database Modeling: Drafting ER diagrams to visualize table relationships, cardinalities, and data integrity constraints.
• Brainstorming: Creating mindmaps to organize product ideas, features, or project requirements.

Example Prompts

1. "Draw an API flow for a user login process including the client, authentication server, and database interactions."
2. "Create an ER diagram showing the relationship between users, posts, and comments in a blogging platform."
3. "Show me the architecture of our current three-tier application stack using a flowchart with subgraphs for frontend, backend, and storage."

Tips & Limitations

To get the best results, start with a minimal definition. If the diagram is too complex, break it into smaller, logical units. Keep node counts between 10 and 15 to ensure readability. Always use Left-to-Right (LR) orientation for processes and Top-to-Bottom (TB) for hierarchies. Avoid mixing different levels of abstraction in one diagram—keep database tables separate from high-level business logic. Note that this skill generates code; for image exports like PNG or SVG, ensure you have the necessary rendering dependencies like mermaid-cli installed in your environment. Remember that the goal of a diagram is to clarify; if a single diagram requires more than 20 nodes, consider creating a sequence of related diagrams to maintain focus.