afv-library/skills/external-diagram-mermaid-generate/README.md

# external-diagram-mermaid-generate

> Salesforce architecture diagram generation using Mermaid syntax with ASCII fallback

## Overview

`external-diagram-mermaid-generate` is a Salesforce architecture diagram skill that generates professional diagrams using Mermaid syntax with ASCII art fallback for terminal compatibility.

## Features

- **OAuth Flows** - Authorization Code, PKCE, JWT Bearer, Client Credentials, Device Flow
- **Data Models** - ERD diagrams with platform-custom-object-generate integration
- **Integrations** - Sequence diagrams for API patterns
- **Architecture** - System landscape overviews
- **Role Hierarchies** - Security model visualization
- **Agentforce** - Agent topic and action flows
- **Accessible** - Color-blind friendly palette
- **Terminal Friendly** - ASCII fallback for all diagrams

## Quick Start

```text
# Generate an OAuth diagram
"Create a JWT Bearer OAuth flow diagram"

# Generate a data model
"Create an ERD for Account, Contact, and Opportunity"

# Generate an integration diagram
"Diagram our Salesforce to SAP sync flow"
```

## Diagram Types

| Type | Template | Use Case |
|------|----------|----------|
| Authorization Code | `oauth/authorization-code.md` | Web apps with backends |
| PKCE Flow | `oauth/authorization-code-pkce.md` | Mobile/SPA apps |
| JWT Bearer | `oauth/jwt-bearer.md` | Server-to-server, CI/CD |
| Client Credentials | `oauth/client-credentials.md` | Service accounts |
| Device Flow | `oauth/device-authorization.md` | CLI tools, IoT |
| Refresh Token | `oauth/refresh-token.md` | Token renewal |
| Data Model | `datamodel/salesforce-erd.md` | Object relationships |
| Integration | `integration/api-sequence.md` | API callout patterns |
| Architecture | `architecture/system-landscape.md` | System overview |
| Role Hierarchy | `role-hierarchy/user-hierarchy.md` | Security model |
| Agentforce | `agentforce/agent-flow.md` | AI agent architecture |

## Scoring System (80 Points)

| Category | Points | Criteria |
|----------|--------|----------|
| Accuracy | 20 | Correct actors, flow steps, relationships |
| Clarity | 20 | Readable labels, logical layout |
| Completeness | 15 | All key elements included |
| Styling | 15 | Color scheme, theming, annotations |
| Best Practices | 10 | Proper notation, UML conventions |

## Color Palette

Tailwind-inspired pastel colors with dark borders (see [references/color-palette.md](references/color-palette.md)):

| Component | Fill (200) | Stroke (700+) |
|-----------|------------|---------------|
| AI & Agents | `#fbcfe8` | `#be185d` |
| Integration | `#fed7aa` | `#c2410c` |
| Development | `#ddd6fe` | `#6d28d9` |
| Metadata | `#a5f3fc` | `#0e7490` |
| Data | `#fde68a` | `#b45309` |
| Deploy | `#a7f3d0` | `#047857` |

## Example Output

### Mermaid Diagram
```mermaid
sequenceDiagram
    autonumber
    participant A as Server
    participant SF as Salesforce

    A->>A: Create JWT
    A->>SF: POST /token (JWT)
    SF->>SF: Validate Signature
    SF->>A: Access Token
```

### ASCII Fallback
```text
┌───────────────┐     ┌───────────────┐
│    Server     │     │   Salesforce  │
└───────┬───────┘     └───────┬───────┘
        │  1. Create JWT      │
        │  2. POST /token     │
        │────────────────────>│
        │                     │
        │  3. Validate JWT    │
        │                     │
        │  4. Access Token    │
        │<────────────────────│
```

## Cross-Skill Integration

| Skill | Integration |
|-------|-------------|
| platform-custom-object-generate / platform-custom-field-generate | Auto-discover objects/fields for ERD |
| integration-connectivity-connected-app-configure | Link OAuth flows to app setup |
| agentforce-generate | Visualize agent architecture |

## Documentation

- [Color Palette](references/color-palette.md) - Styling guide
- [Mermaid Reference](references/mermaid-reference.md) - Syntax quick reference
- [Diagram Conventions](references/diagram-conventions.md) - Consistency rules