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How to write effective evals
We talk a lot about vibe coding, being able to build out product ideas quickly. However, when we deploy products built on existing AI models, we need to ensure the AI’s quality is high, consistent and scalable. Evals provide us with a system to measure quality at scale. Best to start with manual evaluations, which…
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What is Context Engineering in AI?
A few months ago, Shopify’s CEO Tobi Lütke tweeted about “context engineering” – a concept that’s reshaping how we think about AI interactions. We’re all familiar with prompt engineering, where crafting the right input determines your AI output quality. But what happens when your perfectly designed prompt still misses the mark because the AI lacks…
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Building a travel assistant in Bolt
I wanted to create a first iteration of a travel assistant. People increasingly use ChatGPT to create their travel itineraries, and I was curious about what an app could look like that combines both human-curated and AI-generated travel suggestions. First, I took my crude product idea and turned it into a PRD. In Bolt, I…
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Price comparison and AI
I wonder to what extent ChatGPT, Gemini or Claude will eat the lunch of various price comparison sites. Looking at early examples like Google’s Flight Deals and Perplexity Shopping, these AI-powered tools make it incredibly easy to use natural language to find the best deals relevant to you. Think about prompts where users ask for…
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“Click” (Book Review)
Do you ever wonder how to make sure that your product is differentiated enough? Thinking about what makes it unique or better than market alternatives? Then you should read “Click” by Jake Knapp and John Zeratsky (who you might know from the highly successful “Sprint” book about the Design Sprint). Click introduces the “Foundation Sprint”…
