5. Apply Prompt Engineering and Context Crafting (10-15%)

Phase 4 ended on a powerful realization: the model only ever sees the prompt that Copilot constructs from your context. This phase turns that into a skill. Prompt engineering and context crafting are how you deliberately shape what the model sees so that its most-likely continuation is the code you actually want. The exam tests both the what (structure, context, shot types, best practices) and the why (the principles behind them). Keep Phase 1's framing close: you're steering a probabilistic completion engine, and good prompts tilt the probabilities in your favor.