Is the 'Infinite Supply' of AI Tools Depleting Developers' Cognitive Resources?

According to our lab's internal monitoring data for Q2 2026, developers using Codex or Fable 5 for programming see their code logic error rate rise by about 42% after continuous sessions exceeding 3 hours, yet token consumption per unit time actually increases by 18%. This contradiction points to a phenomenon worth being wary of: tool design is approaching "infinite supply," but human attention and decision quality have clear limits.