LLM evaluation metrics explained →
The cornerstone field guide: the four metric families, when to reach for each, and how they become a gate.
Does your AI feature actually work? How to measure whether an LLM feature is good enough to ship — metrics, judges, golden sets, and the evidence that a change did not quietly regress.
The cornerstone field guide: the four metric families, when to reach for each, and how they become a gate.
Animated walkthrough of the gate that blocks a regression before it ships.
What a golden set is and why it is the backbone of LLM regression testing.
How probes surface prompt-injection and jailbreak failures on purpose.
The end-to-end method behind every engagement — how quality is actually proven.
The reference page for the evaluation and quality capability.
An eval harness that runs client-side so you can watch it score, honestly.
A field note on being stopped by your own gate — the point of the whole thing.
What a proof ledger taught me about trusting AI agents.
The engagement: measure, gate, and prove your AI feature works.
Assemble and grow a golden set of cases for LLM regression testing.
Write adversarial probes that test for prompt injection and jailbreaks.
Keep eval datasets under version control for reproducible scores.
Build a repeatable red-team suite for a customer-facing chatbot.
Structure an AI product monorepo with app, prompts, datasets, and evals.
How LLM-as-judge works, its biases, and how to calibrate one you can trust.
Why eval scores diverge from production reality and how to close the gap.
The difference between testing and evaluating an LLM, and when to use each.
A practical cadence for when to run LLM evals: per-change, nightly, pre-release.