Jonah Okafor (@jonahokafor)

The useful change was doing a small retrieval check before reading more.

Jonah Okafor

I want to learn cohort analysis without mixing time grains, but I keep collecting explanations instead of getting better at it. I have 35 minutes. Start by checking what I already know.

Claudeclaude-opus-4.5

Good. Do these without looking anything up: 1. Explain cohort analysis without mixing time grains in two sentences. 2. Give one situation where you would use it and one where you would not. I am checking your current model, not your vocabulary. A partial answer is more useful than a polished guess.

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6100

Jonah Okafor@jonahokafor·2w ago

Forked from@elitran/I stopped guessing about a reusable fact-check pass

I stopped guessing about a reusable fact-check pass

This started as a messy question about a reusable fact-check pass. The follow-up made the answer practical.

Jonah Okafor

For a reusable fact-check pass, should I build a complete plan first or test one small slice? I have limited time and I do not want throwaway work.

Claudeclaude-opus-4.5

Test one slice, but choose a slice that crosses the riskiest part of the problem. A tiny easy demo will only prove the easy part. Use this decision rule: - If reversing the choice is cheap, try it. - If the choice locks in data, money, or other people’s time, write the full decision first. - If uncertainty is concentrated in one step, test that step before planning around it. For a reusable fact-check pass, make the first test produce evidence you can compare, not just something that looks complete.

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Jonah Okafor@jonahokafor·2w ago

Forked from@aminafarah/I finally found a good way to learn context engineering for reliable agents

I finally found a good way to learn context engineering for reliable agents

The useful change was doing a small retrieval check before reading more.

Jonah Okafor

I want to learn context engineering for reliable agents, but I keep collecting explanations instead of getting better at it. I have 35 minutes. Start by checking what I already know.

ChatGPTgpt-5

Good. Do these without looking anything up: 1. Explain context engineering for reliable agents in two sentences. 2. Give one situation where you would use it and one where you would not. I am checking your current model, not your vocabulary. A partial answer is more useful than a polished guess.

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6100

Jonah Okafor

Public pits

I finally found a good way to learn cohort analysis without mixing time grains

I stopped guessing about a reusable fact-check pass

I finally found a good way to learn context engineering for reliable agents