Cli Anything Mermaid

OrganizationPopular

HKUDS

cli-anything-mermaid

Command-line interface for Mermaid Live Editor - Create, edit, and render Mermaid diagrams via stateful project files and mermaid.ink renderer URLs. Designed for AI agents and power users who need to generate flowcharts, sequence diagrams, and other visualizations without a GUI.

Overview

Publisher	HKUDS
Repository	`CLI-Anything`
Skill name	`cli-anything-mermaid`
Stars	49.5K
Forks	4.6K
Bundled files	Instructions only
License	Apache-2.0
Links	Skill source Repository Homepage

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 HKUDS on GitHub. Read the source before you install it.

Installation

Install the Cli Anything Mermaid 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.

Store

Installed

Skills

Add skills

Import one or more skills from a public GitHub folder or a local .skill or .zip archive, or SKILL.md file.

From GitHub URLFrom .skill, .zip, or SKILL.md

GitHub repo or folder

https://github.com/HKUDS/CLI-Anything/tree/main/mermaid/agent-harness/cli_anything/mermaid/skills

Points to a single skill folder, or any folder that contains multiple skills. Public repos only.

CancelContinue

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/HKUDS/CLI-Anything.git /tmp/CLI-Anything
mkdir -p .claude/skills
cp -r /tmp/CLI-Anything/mermaid/agent-harness/cli_anything/mermaid/skills .claude/skills/cli-anything-mermaid

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

Use it in TypingMind

Enable Cli Anything Mermaid 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 Cli Anything Mermaid 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 Cli Anything Mermaid 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.

cli-anything-mermaid

Create, edit, and render Mermaid diagrams via stateful project files and the mermaid.ink renderer. Designed for AI agents and power users who need to generate flowcharts, sequence diagrams, and other visualizations without a GUI.

Installation

This CLI is installed as part of the cli-anything-mermaid package:

bash
pip install cli-anything-mermaid

Prerequisites:

Python 3.10+
No external software required (rendering uses mermaid.ink cloud service)

Usage

Basic Commands

bash
# Show help
cli-anything-mermaid --help

# Start interactive REPL mode
cli-anything-mermaid

# Create a new project
cli-anything-mermaid project new -o diagram.json

# Run with JSON output (for agent consumption)
cli-anything-mermaid --json project info

REPL Mode

When invoked without a subcommand, the CLI enters an interactive REPL session:

bash
cli-anything-mermaid
# Enter commands interactively with tab-completion and history

Command Groups

Project

Project lifecycle commands.

Command	Description
`new`	Create a new Mermaid project with optional sample preset and theme
`open`	Open an existing Mermaid project file
`save`	Save the current project to a file
`info`	Show current project information
`samples`	List available sample diagram presets

Diagram

Diagram source manipulation commands.

Command	Description
`set`	Replace the Mermaid source text (inline or from file)
`show`	Print the current Mermaid source code

Export

Render and share commands.

Command	Description
`render`	Render the diagram to SVG or PNG via mermaid.ink
`share`	Generate a Mermaid Live Editor URL for sharing

Session

Session state commands.

Command	Description
`status`	Show current session state
`undo`	Undo the last diagram source change
`redo`	Redo the last undone change

Examples

Create and Render a Flowchart

bash
# Create a project with flowchart sample
cli-anything-mermaid project new --sample flowchart -o flow.json

# Replace diagram source
cli-anything-mermaid --project flow.json diagram set --text "graph TD; A-->B; B-->C;"

# Render to SVG
cli-anything-mermaid --project flow.json export render output.svg --format svg

Create a Sequence Diagram

bash
# Create project with sequence sample
cli-anything-mermaid project new --sample sequence -o seq.json

# Set diagram from file
cli-anything-mermaid --project seq.json diagram set --file my_diagram.mmd

# Render to PNG
cli-anything-mermaid --project seq.json export render output.png --format png

Share a Diagram

bash
# Generate an editable Mermaid Live URL
cli-anything-mermaid --project flow.json export share --mode edit

# Generate a view-only URL
cli-anything-mermaid --project flow.json export share --mode view

Interactive REPL Session

bash
cli-anything-mermaid
# new flowchart
# set graph TD; A-->B; B-->C;
# render output.svg
# share
# quit

State Management

The CLI maintains session state with:

Undo/Redo: Revert or replay diagram source changes
Project persistence: Save/load project state as JSON
Session tracking: Track modifications and changes

Output Formats

All commands support dual output modes:

Human-readable (default): Tables, colors, formatted text
Machine-readable (--json flag): Structured JSON for agent consumption

bash
# Human output
cli-anything-mermaid project info

# JSON output for agents
cli-anything-mermaid --json project info

For AI Agents

When using this CLI programmatically:

Always use --json flag for parseable output
Check return codes - 0 for success, non-zero for errors
Parse stderr for error messages on failure
Use absolute paths for all file operations
Verify outputs exist after render operations

More Information

Full documentation: See README.md in the package
Test coverage: See TEST.md in the package
Methodology: See HARNESS.md in the cli-anything-plugin

Version

1.0.0

Frequently asked questions

What does the Cli Anything Mermaid AI skill do?

Why use Cli Anything Mermaid on TypingMind?

Because you install it once and use it with any model. Cli Anything Mermaid 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 Cli Anything Mermaid in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/HKUDS/CLI-Anything/tree/main/mermaid/agent-harness/cli_anything/mermaid/skills. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Cli Anything Mermaid?

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 Cli Anything Mermaid?

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

Is the Cli Anything Mermaid AI skill free?

Yes. It is published on GitHub by HKUDS under the Apache-2.0 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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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

cli-anything-mermaid

Installation

Usage

Basic Commands

REPL Mode

Command Groups

Project

Diagram

Export

Session

Examples

Create and Render a Flowchart

Create a Sequence Diagram

Share a Diagram

Interactive REPL Session

State Management

Output Formats

For AI Agents

More Information

Version

Frequently asked questions

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