Agentic Coding Bottleneck: Fable 5 Engineer Says You, Not the Model, Are Now the Limit

Agentic coding bottleneck has shifted: Fable 5 engineer Thariq Shihipar says your blind spots, not the model, now cap results. Anthropic research on 400,000 Claude Code sessions confirms humans own 70 percent of planning decisions. Domain expertise predicts success — and a practical unknown-surfacing framework can close the gap.