How I stopped Claude Code from hallucinating 42% of my React code

A React Native developer tracked six months of AI-assisted coding and saw frequent hallucinated imports and duplicate components.

They built U-AMOS, a multi-layer memory and planning system for durable project context and codebase mapping.

In a later three-month period, Claude Code hallucinations reportedly fell from 42% to 3%, while token usage dropped sharply.

The article argues that structured workflow constraints and persistent memory make AI coding tools more reliable and cost-effective.