Everything on Metrics

Token usage is a poor proxy for success; cost per effective PR merge is a superior metric for measuring AI ROI. This shift aligns engineering spend with actual business value delivery.

Impact: Enables engineering leaders to justify AI investments to executives by demonstrating clear financial efficiency and value creation.

— from Measuring ROI in the Agentic Software Factory · Dev Interrupted· Sep 01, 2026

Traditional metrics like lines of code fail to capture AI impact. Operational metrics like Time to First Diff (TTFD) better reflect true productivity improvements.

Impact: Provides leadership with actionable data to justify AI investments and track onboarding efficiency.

— from Scaling AI Agents: From Editor to Infrastructure · Dev Interrupted· Mar 10, 2026