Have you ever opened a hit to find there is no more hits available, even though MTurk reports that there is some left on the search page? Sometimes this is due to someone grabbing it right before you do. This script discovers that and lets you know.
Pretty simple.. used a lot of the Turkopticon X script code. Tested on Scriptish so I'm unsure about greasemonkey but it should work.
Hope yall like it. It adds a check and leaves the link color alone if it's good. It'll show a X and change the link to red if it's bad.
Here is the link: