Developers are now validating code they didn't write — and may not understand

GitLab's AI Accountability Report finds the bottleneck in software delivery has shifted from writing code to reviewing it — and most teams can't trace where their AI-generated code came from. The report is the latest hard data point on the governance gap: developers are shipping

GitLab's data shows AI code review tools are growing faster than AI coding tools themselves, precisely because someone has to be the accountable human in the loop. Combined with Black Duck's June finding that 97% of developers use AI coding tools but only one-third have full governance, this is shaping up to be the defining DevOps story of H2 2026: governance, provenance, and audit trails for AI-generated code.