The Human Is No Longer the Developer

Short summary

A 25-year developer veteran reveals how AI agents now write most production code while humans focus on planning, validation, and accountability. His proven approach uses dual-model consensus—Claude Code builds and Codex reviews independently to catch different failure modes—with spec-driven development as the source of truth. This pattern is becoming industry standard through tools like GitHub Spec Kit and AWS Kiro, where agents execute and humans maintain final judgment and accountability.

• •AI agents handle code writing; developers shift to planning, validation, and ownership
• •Dual-model consensus (Claude Code + Codex review) reduces failures by catching different mistake types
• •Spec-first development—detailed planning before coding—is becoming industry standard

Generated with AI, which can make mistakes.