Architecture Diagrams

Community

aj-geddes

architecture-diagrams

Create system architecture diagrams using Mermaid, PlantUML, C4 model, flowcharts, and sequence diagrams. Use when documenting architecture, system design, data flows, or technical workflows.

Overview

Publisher	aj-geddes
Repository	`useful-ai-prompts`
Skill name	`architecture-diagrams`
Stars	340
Forks	55
Bundled files	11
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
11 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by aj-geddes on GitHub. Read the source before you install it.

Installation

Install the Architecture Diagrams AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/aj-geddes/useful-ai-prompts.git /tmp/useful-ai-prompts
mkdir -p .claude/skills
cp -r /tmp/useful-ai-prompts/skills/architecture-diagrams .claude/skills/architecture-diagrams

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Architecture Diagrams in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Architecture Diagrams on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Architecture Diagrams is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Overview

Create clear, maintainable architecture diagrams using code-based diagramming tools like Mermaid and PlantUML for system design, data flows, and technical documentation.

When to Use

System architecture documentation
C4 model diagrams
Data flow diagrams
Sequence diagrams
Component relationships
Deployment diagrams
Infrastructure architecture
Microservices architecture
Database schemas (visual)
Integration patterns

Quick Start

Minimal working example:

mermaid
graph TB
    subgraph "Client Layer"
        Web[Web App]
        Mobile[Mobile App]
        CLI[CLI Tool]
    end

    subgraph "API Gateway Layer"
        Gateway[API Gateway<br/>Rate Limiting<br/>Authentication]
    end

    subgraph "Service Layer"
        Auth[Auth Service]
        User[User Service]
        Order[Order Service]
        Payment[Payment Service]
        Notification[Notification Service]
    end

    subgraph "Data Layer"
        UserDB[(User DB<br/>PostgreSQL)]
        OrderDB[(Order DB<br/>PostgreSQL)]
        Cache[(Redis Cache)]
        Queue[Message Queue<br/>RabbitMQ]
    end
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Guide	Contents
System Architecture Diagram	System Architecture Diagram
Sequence Diagram	Sequence Diagram
C4 Context Diagram	C4 Context Diagram
Component Diagram	Component Diagram
Deployment Diagram	Deployment Diagram
Data Flow Diagram	Data Flow Diagram
Class Diagram	Class Diagram
Component Diagram	Component Diagram
Deployment Diagram	Deployment Diagram

Best Practices

✅ DO

Use consistent notation and symbols
Include legends for complex diagrams
Keep diagrams focused on one aspect
Use color coding meaningfully
Include titles and descriptions
Version control your diagrams
Use text-based formats (Mermaid, PlantUML)
Show data flow direction clearly
Include deployment details
Document diagram conventions
Keep diagrams up-to-date with code
Use subgraphs for logical grouping

❌ DON'T

Overcrowd diagrams with details
Use inconsistent styling
Skip diagram legends
Create binary image files only
Forget to document relationships
Mix abstraction levels in one diagram
Use proprietary formats

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Architecture Diagrams AI skill do?

Create system architecture diagrams using Mermaid, PlantUML, C4 model, flowcharts, and sequence diagrams. Use when documenting architecture, system design, data flows, or technical workflows.

Why use Architecture Diagrams on TypingMind?

Because you install it once and use it with any model. Architecture Diagrams is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Architecture Diagrams in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/aj-geddes/useful-ai-prompts/tree/main/skills/architecture-diagrams. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Architecture Diagrams?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Architecture Diagrams?

As many as you like. As long as a model supports skills, you can use Architecture Diagrams with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Architecture Diagrams AI skill free?

Yes. It is published on GitHub by aj-geddes under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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