# Create Clear Mermaid Diagrams

Complex systems and processes are difficult to explain with text alone. This skill selects suitable Mermaid formats and produces readable, styled diagram guidance.

## Install

```bash
npx skillstore add sickn33/mermaid-expert
```

## Metadata

- Status: approved
- Slug: sickn33-mermaid-expert
- Skillstore revision: r2
- Version status: missing
- Tree hash: 910d9abd8ec11e617239797b93dd859838b2063d4836bf33819d46323da88747
- Author: sickn33
- GitHub username: sickn33
- License: MIT
- Repository: https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/mermaid-expert
- Ref: 81e05e636292629114b76cbb3922fbe57672fc02
- Supported tools: Claude, Codex, Claude Code
- Audit status: complete
- Agent install advisory: allowed
- Manual install advisory: allowed
- Artifact signature: available
- Audit attestation: unavailable
- Human verification: not\_verified
- Risk factors: external\_commands
- Quality score: 78
- Quality tier: bronze
- Public page: https://skillstore.pages.dev/skills/sickn33-mermaid-expert
- Manifest: https://skillstore.pages.dev/api/skills/sickn33-mermaid-expert/manifest

## Capabilities

- Selects suitable Mermaid diagram types for workflows, interactions, data models, timelines, and journeys.
- Produces basic and styled diagram versions for the same subject.
- Applies consistent labels, colors, and structure to improve readability.
- Explains complex Mermaid syntax with concise comments.
- Suggests alternative diagram types when several formats fit the request.
- Provides rendering, accessibility, export, and validation recommendations.

## Use Cases

- Document Service Interactions: Create sequence diagrams that show requests, responses, failures, and participating services.
- Map Business Workflows: Turn process steps and decisions into readable flowcharts for review and training.
- Plan Data Models: Represent entities, attributes, and relationships in an ERD before implementation.

## Prompt Templates

### Create a Basic Flowchart

```
Create a Mermaid flowchart for [process]. Include these steps: [steps]. Show these decisions: [decisions]. Provide basic and styled versions.
```

### Build an API Sequence

```
Create a Mermaid sequence diagram for [API interaction]. Include [participants], success responses, validation failures, and timeout behavior.
```

### Design an Entity Model

```
Create a Mermaid ERD for [domain]. Use these entities: [entities]. Include attributes, cardinalities, optional relationships, and assumptions.
```

### Compare Architecture Views

```
Model [system] in Mermaid using the best primary diagram type. Provide an alternative view, styling, accessibility notes, and rendering validation steps.
```

## Limitations

- It does not render or visually inspect diagrams without a compatible Mermaid environment.
- Environment-specific Mermaid versions may not support every diagram type or syntax feature.
- Accurate diagrams require complete entities, relationships, steps, or architecture details.
- The skill provides guidance and generated syntax, not authoritative system documentation.

## Best Practices

- Provide complete participants, steps, relationships, and decision outcomes before requesting a diagram.
- Keep each diagram focused on one audience and one communication goal.
- Render the result with the target Mermaid version and verify labels, layout, and accessibility.

## Anti Patterns

- Do not combine unrelated workflows and architecture details in one crowded diagram.
- Do not omit failure paths, relationship cardinalities, or assumptions that affect interpretation.
- Do not accept generated syntax without rendering it in the target environment.

## Security Audit

- Audited at: 2026-08-04T13:55:56.154\+00:00
- Summary: All nine static findings are false positives caused by Markdown backticks and ordinary Mermaid guidance. The skill contains no executable commands, system reconnaissance, prompt injection, or other semantic security concerns.

## Stats

- Views: 117
- Downloads: 16
- Favorites: 1
- Popularity score: 0