Currently, the arguments for an action are specified as a blob of JSON. We'd like to have the admin interface use the argument schema to build a user-friendly form that can be used to edit the arguments instead of making users edit the JSON by hand. https://github.com/jdorn/json-editor seems like a great library to help build the forms.
Commit pushed to master at https://github.com/mozilla/normandy https://github.com/mozilla/normandy/commit/11f1037f84ae84e3b982f16305f0b135b314b8e1 Add JSONEditor as a more user-friendly arguments editor. Fixes bug 1248264.