
Free Lesson
Stop Bad Merges with an LLM Eval Gate
30 min
Oct 7, 2026 2:00 PM
What you'll learn
How to set regression thresholds your team can defend
Thresholds come from your metric's measured spread, not a gut number. Set them once, argue never.
How to wire an eval suite into GitHub Actions
A CLI run on every pull request, results posted to the check. The setup fits in one YAML file.
How to make a failing eval block a merge on its own
The gate flips red before users see the regression. Watch a bad prompt change die in the queue.
Why this topic matters
Right now, a bad prompt change reaches production the same way a good one does: nobody measured either. Quality depends on someone remembering to check, and memory loses to deadlines every time. A CI gate makes the check automatic. The eval runs on every pull request, and a regression dies in the queue instead of in front of users. Vigilance does not scale. Policy does.
You'll learn from
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