Full-stack-skills ascii-mini-charts

Generate ASCII mini charts (sparkline/bar/simple line) for plain-text trend inspection, with minimal and annotated variants and normalization notes. Use when the user needs text-based data visualization, terminal charts, or ASCII graphs for CLI output.

install

source · Clone the upstream repo

git clone https://github.com/partme-ai/full-stack-skills

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

T=$(mktemp -d) && git clone --depth=1 https://github.com/partme-ai/full-stack-skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/ascii-skills/ascii-mini-charts" ~/.claude/skills/partme-ai-full-stack-skills-ascii-mini-charts && rm -rf "$T"

manifest: skills/ascii-skills/ascii-mini-charts/SKILL.md

When to use this skill

CRITICAL TRIGGER RULE

Use this skill ONLY when the user explicitly mentions the exact skill name:
```
ascii-mini-charts
```
.

Trigger phrases include:

"ascii-mini-charts"
"use ascii-mini-charts"
"用 ascii-mini-charts 生成 sparkline / 火花线"
"使用 ascii-mini-charts 标注 min/max/current"

Boundary

No statistical inference. Visualization only.
Default output is ASCII-only. Unicode blocks are optional and MUST include an ASCII-only fallback.
Default output width should stay <= 60 columns. For longer series, provide a compression strategy (sampling/bucketing).

How to use this skill

Inputs

series (required numeric list)
type (sparkline | bar | line, default sparkline)
width (default min(len(series), 30))
height (default 10 for bar/line)
normalize (linear | log, default linear)
showLabels (default true)

Outputs (required)

chartMinimal
chartAnnotated (with min/max/current)
scaleNotes (normalization + outlier strategy)

Inline Example

Input:

series=[3, 7, 2, 9, 5, 8, 1, 6]

type=sparkline

chartMinimal:

▂▅▁▇▃▆ ▄

chartAnnotated:

▂▅▁▇▃▆ ▄  min:1 max:9 current:6

Input:

series=[10, 25, 15, 30]

type=bar

height=5

chartAnnotated:

     ##
  ## ##
  ## ##
  ## ## ##
## ## ## ##
10 25 15 30

Script Usage

# Generate sparkline from JSON data
echo '{"series": [3, 7, 2, 9, 5, 8, 1, 6], "type": "sparkline"}' | python3 scripts/mini_charts.py

# Generate bar chart with annotations
echo '{"series": [10, 25, 15, 30], "type": "bar", "height": 5, "showLabels": true}' | python3 scripts/mini_charts.py

Script

```
scripts/mini_charts.py
```
: generate ASCII mini charts from JSON stdin

Examples

```
examples/sparkline.md
```

Quality checklist

Trend is clear; labels are short and non-spammy
ASCII-only output copy/pastes cleanly
Provide a compression strategy for long series

Keywords

English: ascii-mini-charts, sparkline, ascii chart, bar chart, line chart, trend, normalize 中文: ascii-mini-charts, 火花线, ASCII 图表, 柱状图, 折线图, 趋势, 归一化