Tools: Links, Pastes, QR & Image Utilities

Percy bundles a set of handy utilities powered by klappstuhl.me: a URL shortener, a paste host, a QR generator, link previews, and a full image toolkit. They all run as prefix commands (type ? followed by the command), so anyone can use them without special permissions.

These tools rely on a klappstuhl.me API key configured by the person who hosts Percy. On instances where it isn’t set up, each command replies with a friendly “not configured” message instead of erroring. The public Percy has them enabled.

Links, Pastes & QR

Command	Description
`?shorten <url> [alias]`	Create a short link (`r.klappstuhl.me/<code>`) for a URL, optionally with a custom alias
`?paste <content>`	Host a text or code snippet and get a highlighted `/p/<id>` link plus a raw link
`?qr <data>`	Generate a QR code image for any text or URL
`?preview <url>`	Fetch a link’s Open Graph / preview metadata (title, description, image)

Examples

?shorten https://example.com/a/very/long/path launch
?qr https://percy.klappstuhl.me
?paste console.log("hello world")
?preview https://github.com/klappstuhlpy

Image Tools

The ?image group (alias ?img) manipulates and inspects images. Every subcommand accepts an image from any of these sources — checked in order:

A member you mention (their avatar)
An image URL you pass
An attachment on your message
An image on the message you reply to
Otherwise, your own avatar

Command	Description
`?image blur [target]`	Apply a Gaussian blur
`?image pixelate [target]`	Pixelate / mosaic the image (alias `pixel`)
`?image deepfry [target]`	The crunchy “deep-fried” meme look (alias `fry`)
`?image invert [target]`	Invert all colours
`?image grayscale [target]`	Desaturate to gray (aliases `greyscale`, `gray`, `grey`)
`?image convert <format> [target]`	Convert to `png`, `jpeg`/`jpg`, `webp`, `gif`, `bmp`, or `tiff`
`?image info [target]`	Show dimensions, format, colour mode, and file size (alias `metadata`)
`?image palette [target]`	Extract the dominant colours (aliases `colors`, `colours`)

Examples

?image deepfry @Alice
?img blur https://example.com/photo.png
?image convert webp
?image palette

?image palette is great for picking an embed accent colour or a theme — it returns each colour’s hex code and how much of the image it covers.

Scan & Screenshot

Command	Description
`?scan`	Scan an attached file (or one you reply to) for malware via ClamAV + VirusTotal
`?screenshot <url>`	Render a public web page to a PNG using a headless browser

?scan never stores your file — only its SHA-256 hash (never the contents) is checked against VirusTotal, and the result shows a clean / infected verdict plus per-engine details. Examples

?scan            (with a file attached, or replying to one)
?screenshot https://percy.klappstuhl.me

Render

Turn code, data, or Markdown into a rendered document.

Command	Description
`?codeimage <code>`	Render syntax-highlighted code to an image (aliases `codeshot`, `rendercode`)
`?chart <kind> [title] \| label:value, …`	Render a chart from `label:value` pairs (alias `renderchart`)
`?mdpdf <markdown>`	Render Markdown to a PDF document (aliases `markdownpdf`, `md2pdf`)

?codeimage — wrap your code in a fenced ```lang block to choose the highlighter (e.g. ```rust); otherwise it renders as plain text. You get a link to the rendered image.
?chart — the kind is one of line, area, bar, scatter, pie, or donut. Put an optional title after the kind, then a |, then comma-separated label:value pairs. You get a link to the rendered chart.
?mdpdf — returns a .pdf file you can download.

Examples

?codeimage ```py
def greet(name):
    print(f"hello, {name}")
```

?chart bar Quarterly Sales | Q1:120, Q2:180, Q3:90, Q4:210
?chart donut Languages | Rust:45, Python:30, TypeScript:25

?mdpdf # Report

Some **bold** text and a list:
- one
- two

?codeimage and ?chart produce SVG images, which are hosted on klappstuhl.me and returned as a link you can open in your browser. ?mdpdf is attached directly as a PDF file.

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Tools: Links, Pastes, QR & Image Utilities

Links, Pastes & QR

Image Tools

Scan & Screenshot

Render

​Links, Pastes & QR

​Image Tools

​Scan & Screenshot

​Render

Links, Pastes & QR

Image Tools

Scan & Screenshot

Render