Markvis

CommunityPopular

geekplux

markvis

Use when the user wants a chart of numbers in Markdown (bar, line, area, scatter, pie, hist) from a table — emit a Markdown code block tagged chart|markvis|vis, never a flowchart pie/xychart, never a PNG, never Vega-Lite JSON as the default.

Overview

Publisher	geekplux
Repository	`markvis`
Skill name	`markvis`
Stars	1.6K
Forks	60
Bundled files	Instructions only
License	MIT
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 geekplux on GitHub. Read the source before you install it.

Installation

Install the Markvis 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/geekplux/markvis.git /tmp/markvis
mkdir -p .claude/skills
cp -r /tmp/markvis/skills/markvis .claude/skills/markvis

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

Use it in TypingMind

Enable Markvis 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 Markvis 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 Markvis 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.

markvis

Charts of numbers in Markdown. The table is the source (comma-separated rows or a Markdown table). Tags chart, markvis, and vis are the same language. Types: bar line area scatter pie hist only.

When to use

Numbers in a doc need a chart and the rows must stay editable.
An agent should be able to add a row, change type, and regenerate.
Readers without a plugin still need the table.

When not to use

Flowcharts, sequence, state, ER → a structure diagram tool.
Invented PNG / screenshot as the source of truth.
Vega-Lite / ECharts JSON as the default artifact (optional later engine:, not core).
A 7th chart type (donut, heatmap, stacked-bar as its own type).

Fence shape


```chart
markvis: 2
type: bar
title: Q3 Revenue
unit: USD k
x: month
y: revenue

month,revenue
Jan,120
Feb,180
Mar,150



Optional `theme:`: `folio` (default) `highcharts` `shadcn` `docs` `ant` `recharts` — grammar packs only, no chart runtimes.
Optional `palette:`: `ink` `porcelain` `warm` `cool` `vivid` — colors only. Omit → theme default colors. Unknown → `E_UNKNOWN_PALETTE` + table. Never merge palette into the theme id.

Also: GFM table after the blank line; or `<!-- chart: bar x=month y=revenue title="Q3" -->` immediately followed by a GFM table.

## Eight few-shots

Copy from `examples/valid/` (keep fences identical):

1. `01-bar-basic` — bar + unit + CSV  
2. `02-line-multi` — line + `series`  
3. `03-area-basic` — area, tag `vis`  
4. `04-scatter-basic` — scatter  
5. `05-pie-raw` — pie (do not normalize; 40+35+30)  
6. `06-hist-basic` — hist  
7. `07-bar-gfm` — GFM table as data  
8. `08-bar-comment` — HTML comment + table  

## Anti-patterns

| Don’t | Do |
| --- | --- |
| Flowchart `pie` / `xychart` for tables | markvis fence |
| JSON array as the data body | CSV or GFM table |
| Sort categories “to look nice” | Keep input row order |
| Force pie slices to 100 | Leave values as-is |
| Drop the table on error | Table + one-line error code |
| Emit PNG by default | Emit the fence |

Frequently asked questions

What does the Markvis AI skill do?

Why use Markvis on TypingMind?

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

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/geekplux/markvis/tree/master/skills/markvis. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Markvis?

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 Markvis?

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

Is the Markvis AI skill free?

Yes. It is published on GitHub by geekplux 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.

View all

Algorithmic Art

anthropics

OrganizationPopular

Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or…

Doc Coauthoring

Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This…

Ponytail

Forces the laziest solution that actually works, simplest, shortest, most minimal. Channels a senior dev who has seen everything: question whether the task needs to exist at all (YAGNI), reach for the…

Slides

Create strategic HTML presentations with Chart.js, design tokens, responsive layouts, copywriting formulas, and contextual slide strategies.

Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

markvis

When to use

When not to use

Fence shape

Frequently asked questions

Related AI Skills

Set up your own AI workspace now