[Back to Course](/en/courses/prompt-engineering) Lessons

## Mermaid Diagram Reference

This page showcases 10 common Mermaid diagram types with examples relevant to prompt engineering and autonomous agents.

### 1\. Flowchart

Flowcharts show processes, workflows, and decision points:

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#### Extended example — multi-step agent deployment

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### 2\. Sequence Diagram

Sequence diagrams illustrate interactions between actors and systems over time:

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#### Extended example — multi-agent handoff

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### 3\. State Diagram

State diagrams model the lifecycle of a system or process:

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#### Extended example — full agent lifecycle

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### 4\. Mindmap

Mindmaps organize hierarchical information around a central topic:

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#### Extended example — full product hierarchy

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### 5\. Pie Chart

Pie charts display proportional data distributions:

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#### Extended example — LLM provider distribution

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### 6\. Class Diagram

Class diagrams model the structure of a system showing classes, attributes, and relationships:

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#### Extended example — full platform class model

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### 7\. Entity Relationship Diagram

ER diagrams represent data entities and their relationships:

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#### Extended example — full database schema

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### 8\. Git Branch Diagram

Gitgraph diagrams visualize branching and merging strategies:

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#### Extended example — multi-branch release workflow

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### 9\. Timeline

Timelines display events chronologically:

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#### Extended example — full platform roadmap

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### 10\. Gantt Chart

Gantt charts illustrate project schedules and task dependencies:

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#### Extended example — product development roadmap

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