Learn-skills.dev chartli

Install and use chartli to render terminal charts from numeric text files or stdin.

install

source · Clone the upstream repo

git clone https://github.com/NeverSight/learn-skills.dev

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/NeverSight/learn-skills.dev "$T" && mkdir -p ~/.claude/skills && cp -r "$T/data/skills-md/ahmadawais/chartli/chartli" ~/.claude/skills/neversight-learn-skills-dev-chartli && rm -rf "$T"

manifest: data/skills-md/ahmadawais/chartli/chartli/SKILL.md

source content

chartli Skill

Use this skill when an agent needs to visualize numeric data in the terminal as ASCII/Unicode/SVG charts.

Install

npx skills add ahmadawais/chartli

CLI install/use

Instant use:

npx chartli --help

Global install:

npm i -g chartli

What chartli can do

Render chart types:

ascii

spark

bars

columns

heatmap

unicode

braille

svg

Read from file path input
Read from stdin when no file is passed
Control output dimensions with
```
--width
```
and
```
--height
```
Render SVG with
```
--mode circles|lines
```

Command templates

From file:

npx chartli <file> -t <type> [--width N] [--height N] [--mode circles|lines]

From stdin:

printf 'x y\n1 10\n2 20\n3 15\n' | npx chartli -t ascii -w 24 -h 8

Per-type examples:

npx chartli data.txt -t ascii -w 24 -h 8
npx chartli data.txt -t spark
npx chartli data.txt -t bars -w 28
npx chartli data.txt -t columns -h 8
npx chartli data.txt -t heatmap
npx chartli data.txt -t unicode
npx chartli data.txt -t braille -w 16 -h 6
npx chartli data.txt -t svg -m lines -w 320 -h 120

Input format

Whitespace-separated numeric rows; optional header row is allowed.

day sales costs profit
1 10 8 2
2 14 9 5
3 12 11 3

Repository example assets

```
examples/assets/core-single-series.txt
```
```
examples/assets/core-multi-series.txt
```
```
examples/assets/image-data.txt
```

examples/assets/image-columns-variant.txt