Developer shares 12-point pre-launch checklist for n8n LLM workflows

On November 11, 2026 at 14:01, DEV Community's AI section published an article titled "n8n LLM workflow checklist: 12 checks before you ship". The author explains that over the last few weeks they deliberately broke a large number of their own n8n AI workflows, and then turned every failure into a rule they now check before switching a workflow on. The post is that checklist.

The failures named in the piece include a lead qualifier that pinged Slack about a "hot lead" whose message was only four emojis, a lead misjudged from an essentially empty message. An invoice extractor added tax on top of a total that already included tax, so the amount was double-charged. A support bot made up answers, with 22 fabricated replies counted. Another workflow "succeeded" in the logs only because it posted to a placeholder Slack URL and received Slack's documentation page in response, so a non-functional delivery path reported success.

The author states that each of those failures was turned into a rule checked before a workflow goes live, and that the rules were validated by re-running three old failures, with all 21 bad runs stopped. The checklist contains 12 items in total, but the post names only these four categories of failure, and the remaining checks are not itemised in the material.

No further developments are reported, so the story currently ends with the author publishing the checklist and its verification results.