missing epic link (you're already kind of doing this)
title shorter than 3 words (maybe even filter out words in [], and generic words like "Spike", "Research", "the", "Fix")
description shorter than title
missing story points, if in To Do or later column
assignment, if in backlog
last change (via Jira History) more than 3 months ago. just a thought that if a Jira remains relevant that long we should probably put a comment on it to say so. just a thought
Create a combine Jira and Github view for items that the team should look into. Old PRs, tickets with a long time in current status etc.