# sequence-diagrams

> Sequence diagrams show interactions between participants over time. They're ideal for API flows, authentication sequences, and system component interaction

- Source: https://doutorai.pt/en/components/skills__sequence-diagrams
- Type: Skills
- Category: Creative design
- Downloads: 0
- Site: Doutor AI (https://doutorai.pt/en) - AI tools for small businesses

An open-source community component, curated and adapted by Doutor AI.

## What it does and how to use it

A **skill** that teaches Claude Code to do creative design tasks well. It is packaged knowledge the model uses whenever it is relevant.

1. Install the skill (command above).
2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
3. No commands to memorize: you talk in plain language and the skill does the rest.

## Install (Claude Code)

```bash
mkdir -p .claude/skills/sequence-diagrams && curl -fsSL https://doutorai.pt/data/lib/skills__sequence-diagrams.md -o .claude/skills/sequence-diagrams/SKILL.md
```

Paste this command into the terminal, in your project folder, and the component installs automatically.

## Content

````
# Sequence Diagrams

Sequence diagrams show interactions between participants over time. They're ideal for API flows, authentication sequences, and system component interactions.

## Basic Syntax

```mermaid
sequenceDiagram
    participant A
    participant B
    A->>B: Message
```

## Participants and Actors

```mermaid
sequenceDiagram
    actor User
    participant Frontend
    participant API
    participant Database
    
    User->>Frontend: Click button
    Frontend->>API: POST /data
```

**Difference:**
- `participant` - System components (services, classes, databases)
- `actor` - Extern

- 🔒 Full content on the Pro plan (€7.99/month) -
````

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Content by Doutor AI (https://doutorai.pt/en). When quoting, please cite the source: https://doutorai.pt/en/components/skills__sequence-diagrams