System-design decisions and their long-term consequences.
It knows fifty design patterns — that's the problem. The most dangerous case isn't when it picks a bad pattern; it's when it picks a reasonable one, commits it as if you'd decided, and never mentions a choice was made.
AI lets everyone 'grow' software fast. But without understanding the soil — architecture, security, maintainability — we may just be accumulating debt faster.
After reverse-engineering the GitHub Copilot extension, here's how Agent Mode appears to index your codebase, search it, and act with 16+ specialized tools.