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.

261 stars

bypartme-ai

View on GitHub Installation ↓

Best use case

ascii-mini-charts is best used when you need a repeatable AI agent workflow instead of a one-off prompt. It is especially useful for teams working in multi. 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.

Users should expect a more consistent workflow output, faster repeated execution, and less time spent rewriting prompts from scratch.

Practical example

Example input

Use the "ascii-mini-charts" skill to help with this workflow task. Context: 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.

Example output

A structured workflow result with clearer steps, more consistent formatting, and an output that is easier to reuse in the next run.

When to use this skill

Use this skill when you want a reusable workflow rather than writing the same prompt again and again.
Use it when you already have the supporting tools or dependencies needed by the workflow.

When not to use this skill

Do not use this when you only need a one-off answer and do not need a reusable workflow.
Do not use it if you cannot install or maintain the related files, repository context, or supporting tools.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/ascii-mini-charts/SKILL.md --create-dirs "https://raw.githubusercontent.com/partme-ai/full-stack-skills/main/skills/ascii-skills/ascii-mini-charts/SKILL.md"

Manual Installation

Download SKILL.md from GitHub
Place it in .claude/skills/ascii-mini-charts/SKILL.md inside your project
Restart your AI agent — it will auto-discover the skill

How ascii-mini-charts Compares

Feature / Agent	ascii-mini-charts	Standard Approach
Platform Support	Not specified	Limited / Varies
Context Awareness	High	Baseline
Installation Complexity	Unknown	N/A

Frequently Asked Questions

What does this skill do?

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

Related Guides

AI Agents for Coding

Browse AI agent skills for coding, debugging, testing, refactoring, code review, and developer workflows across Claude, Cursor, and Codex.

SKILL.md Source

## 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

```bash
# 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
1. Trend is clear; labels are short and non-spammy
2. ASCII-only output copy/pastes cleanly
3. 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

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