Cashu Emoji Tokens (Variation Selector encoding)

This skill helps agents decode Cashu tokens received as emoji (and encode tokens for sending), and it also supports general hidden messages inside emojis.

If the decoded text starts with cashu, it’s likely a Cashu token. Otherwise treat it as a plain hidden message.

Why this exists

Some services embed a cashu... token into an emoji using Unicode variation selectors (VS1..VS256). Chat apps often display only the emoji, but preserve the hidden selector characters.

Important: many messengers can truncate or normalize Unicode. If the variation selectors are lost, the embedded token cannot be recovered.

Quickstart (copy/paste)

git clone https://github.com/robwoodgate/cashu-emoji.git
cd cashu-emoji
npm ci