Copied from Enchanter addon and adjusted for Jewelcrafters.

Jewelcrafter

WoW Addon that helps jewelcrafters get connected with those looking for gem cuts. This add-on will not blindly invite anyone who is looking for an gem cut, it will only invite those who are looking for a gem cut that the jewelcrafter has.

PLEASE READ USAGE SECTION

Jewelcrafter scans and saves your characters known jewelcrafting designs, it will then be parsing chat for any requests that match the known recipes. Once there is a match it will auto invite the person and whisper them a link to all of the requested jewelcraft design that the jewelcrafter is capable of doing.

If you discover that a request was either wrongfully matched or not matched please provide the full request message

Usage VERY IMPORTANT

You need to first run /j scan this will store your known designs and will be parsing chat for them (only need to do it 1 time or if you learned new designs)

Slash commands can be used by any of these commands: /j, /jc, /jewelcrafter

/j scan - MUST BE RAN BEFORE IT WILL WORK - Stores your jewelcrafting designs to be used when filtering for requests. NOTE: You need to rerun this when you learn new recipes
/j start - Starts scanning chat (/j scan must have been at some point)
/j stop/pause - Pauses scanning
/j options/config/setup - Options, where you can modify tags and the message prefix
/j debug - Displays debug messages
/j about - Displays usage