Is your team drowning in huge, AI‐generated PRs? In the past 14 days engineers have reported a surge of “vibe coding” — heavy LLM‐authored code dumped into massive pull requests (Reddit, r/ExperiencedDevs, 2025‐12‐05; 2025‐11‐21) that add unnecessary abstractions and misaligned APIs, forcing seniors to spend 12–15 hours/week on reviews (Reddit, 2025‐11‐20). That mismatch — fast generation, legacy review norms — raises operational and market risk for fintech, quant, and production systems. Teams are responding with clear fixes: green/yellow/red zoning for AI use, hard limits on PR diff size, mandatory design docs and tests, and treating AI like a junior that must be specified and validated. For leaders: codify machine‐readable architecture guides, add AI‐aware CI checks, and log AI involvement — those steps turn a short‐term bottleneck into durable advantage.