The summer of 2025 is seeing AI-powered IDEs move from novelty to default. Cursor, GitHub Copilot, and others promise vibe coding: rapid prototyping through natural-language prompts. Productivity is jumping — yet the trade-offs are already showing. Six patterns are emerging: prediction vs. planning, reactive patch loops, invisible gaps, shifting privacy promises, tooling drift under scale, and erosion of developer choice. Here’s what we’re learning so far — and where the tools need to head next.