Simon Willison (co-creator of Django and prominent tech blogger) explores a significant shift in how AI-assisted programming impacts technical decision-making. Historically, developers were encouraged to "choose boring technology"—mature, well-documented tools with extensive online presence. This was largely because early models performed significantly better on widely used languages like Python or JavaScript, which dominated their training datasets.

However, the advent of sophisticated coding agents and expanded context windows (the amount of information a model can process at once) is changing this dynamic. Modern agents can now ingest real-time documentation or private codebase patterns on the fly. By simply prompting an agent to read a tool's "help" output or local examples, developers can effectively "teach" the model to work with brand-new or niche technologies via in-context learning—the ability of a model to adapt to new info within a prompt.

Recent studies into tools like Claude Code (a command-line interface for coding) suggest that while AI might exhibit a "near monopoly" bias toward specific stacks like Stripe or shadcn/ui, human intervention remains the deciding factor. The rapid adoption of standardized "Skills"—pre-packaged capabilities released by platforms like Supabase and Vercel—further enables agents to bridge the gap between training data and cutting-edge software development.

In the past, people who build apps were told to use 'boring technology' (Mature Technology). This means using tools that are old and famous because there is a lot of information about them on the internet. Early AI models were only good at these tools because they saw them millions of times while they were learning (Training Datasets).

But now, smart AI helpers (Coding Agents) have a very large 'digital desk' (Context Windows) where they can hold a lot of information at once. They can read new instruction manuals (Real-time Documentation) or look at a specific project's secret notes (Private Codebase) to learn how to help you. By simply telling the AI to read a 'help' file, you can teach it how to use brand-new or rare tools right away (In-context learning).

New studies show that while AI might still prefer some super famous tools (Model Bias), the human programmer is the one who makes the final choice. Also, big tech companies are creating ready-made 'skill kits' (Standardized Skills) that the AI can use immediately. This helps the AI work with the newest and fastest software tools (Modern Ecosystems) without getting confused.