Developer Overhauls Auth Flow and Tests LLM Code Generation for AI App Eli

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A developer working on two projects — Horizon and Eli — spent the day refining Horizon's authentication system, implementing a single-page GraphQL-based login that issues JWTs and handles errors such as wrong passwords, dropped connections, and duplicate submissions with tailored user messages. A debounce mechanism was also added to the frontend to prevent double submissions at the UI level. Separately, the developer experimented with a Rails application that uses OpenAI's GPT-4o-mini to generate Ruby code from plain-English prompts, pairing it with a RuboCop validator and a user-feedback loop for refinement. Early results showed the LLM performs well on simple tasks but struggles with complex logic involving external API interactions. Both efforts feed into Eli, an AI companion app designed around the philosophy of emotional presence rather than mere information delivery.

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