## Problem to solve The markdown editor implemented in issues, epics, and comments as a `textarea` has functionality built in to help users write GLFM. One of the most useful are the supported quick actions (slash commands). In order to even consider the Source Editor as a suitable replacement for the `textarea`, we need to support these quick actions in a similar way. That includes the UI that shows up to aide the user in available commands and autocomplete as they type. ## Proposal Create an extension for Source Editor that can be loaded in the context of editing GLFM files and provide suggestions when the `/` command is invoked. Similar to: