Diagramming

Community

ynulihao

diagramming

Create technical diagrams using Mermaid syntax for architecture, sequences, ERDs, flowcharts, and state machines. Use for visualizing system design, data flows, and processes. Triggers: diagram, mermaid, architecture diagram, sequence diagram, flowchart, ERD, entity relationship, state diagram, C4 model, component diagram, visualize, draw.

Overview

Publisher	ynulihao
Repository	`AgentSkillOS`
Skill name	`diagramming`
Stars	612
Forks	76
Bundled files	Instructions only
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.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by ynulihao on GitHub. Read the source before you install it.

Installation

Install the Diagramming 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.
https://github.com/ynulihao/AgentSkillOS/tree/main/data/skill_seeds/diagramming
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/ynulihao/AgentSkillOS.git /tmp/AgentSkillOS
mkdir -p .claude/skills
cp -r /tmp/AgentSkillOS/data/skill_seeds/diagramming .claude/skills/diagramming

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

Use it in TypingMind

Enable Diagramming 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 Diagramming 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 Diagramming 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.

Diagramming

Overview

Create clear, maintainable technical diagrams using Mermaid syntax. This skill covers architecture diagrams, sequence diagrams, entity-relationship diagrams, flowcharts, and state diagrams for documenting software systems.

Instructions

1. Choose the Right Diagram Type

Diagram Type	Use When
Architecture/C4	Showing system structure and components
Sequence	Showing interactions over time
ERD	Showing data models and relationships
Flowchart	Showing decision logic and processes
State	Showing state transitions

2. General Mermaid Principles

Keep diagrams focused on one concept
Use consistent naming conventions
Add descriptive labels to relationships
Limit complexity (split large diagrams)
Use comments for documentation

Best Practices

Simplicity: One diagram, one concept
Consistency: Same naming across related diagrams
Readability: Left-to-right or top-to-bottom flow
Labels: Always label relationships and transitions
Context: Include a title and brief description

Examples

Architecture Diagrams (C4 Model)

Context Diagram (Level 1)

Container Diagram (Level 2)

Component Diagram (Level 3)

Sequence Diagrams

Basic Request Flow

Error Handling Flow

Async Processing

Entity-Relationship Diagrams

Basic ERD

ERD with Relationships Explained

Relationship notation:

|| exactly one
o| zero or one
}| one or more
}o zero or more

Flowcharts

Decision Logic

Process Flow

State Diagrams

Order State Machine

Connection State Machine

Class Diagrams

Frequently asked questions

What does the Diagramming AI skill do?

Why use Diagramming on TypingMind?

Because you install it once and use it with any model. Diagramming 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 Diagramming in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/ynulihao/AgentSkillOS/tree/main/data/skill_seeds/diagramming. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Diagramming?

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 Diagramming?

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

Is the Diagramming AI skill free?

It is published on GitHub by ynulihao. Check the repository for licensing terms. 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.

View all

Openclaw Changelog Update

openclaw

OrganizationPopular

Regenerate OpenClaw release changelog sections from git history before beta, stable, or extended-stable releases.

Openclaw Ci Limits

Manage OpenClaw GitHub Actions and Blacksmith CI capacity, runner-registration budgets, fanout caps, main-push single-flight, shard sizing, hosted-runner offload, queue health, and safe…

Openclaw Debugging

Debug OpenClaw model, provider, tool-surface, code-mode, streaming, and live/Crabbox behavior by choosing the right logs, probes, and proof path before changing code, including fetching stored…

Openclaw Live Updater

openclaw

OrganizationPopular

Maintain the canonical live OpenClaw main checkout, macOS LaunchAgent-managed Gateway, local macOS app, exact-head main CI, and recurring full release validation. Use for fast-forward update…

Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Diagramming

Overview

Instructions

1. Choose the Right Diagram Type

2. General Mermaid Principles

Best Practices

Examples

Architecture Diagrams (C4 Model)

Context Diagram (Level 1)

Container Diagram (Level 2)

Component Diagram (Level 3)

Sequence Diagrams

Basic Request Flow

Error Handling Flow

Async Processing

Entity-Relationship Diagrams

Basic ERD

ERD with Relationships Explained

Flowcharts

Decision Logic

Process Flow

State Diagrams

Order State Machine

Connection State Machine

Class Diagrams

Frequently asked questions

Related AI Skills

Set up your own AI workspace now