Thanks for this feedback, @rgmz! I've made these changes. The tests failed due to GenerateSampleSecrets just happening to create a key that didn't match the minimum set Entropy of 4.

I ran

 for i in $(seq 100); do go generate ./... ; done

And it only generated a tps key with an Entropy < 4 once for this new rule that caused a validation failure (although there were a few other tpss that failed to validate for other rules, I presume due to a similar issue). I can lower Entropy a bit, or leave as is. Whichever you prefer.

After running some simulations I found that GenerateSampleSecrets was creating more low entropy tpss for the 1Password keys than I thought. I've decreased the Entropy to a value that makes more sense.

ty @jrdnbradford @rgmz. This looks solid to me