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My RAG system's refusal threshold was having no effect. I only found out because I measured it.

This story is from 2026-09-15. It is preserved in the archive; the latest stories are on the live feed.

I'm a Java backend engineer. Three years of Spring Boot, Kafka and Postgres in a regulated healthcare environment, and minimal ML background to speak of. On deciding that I should learn retrieval-augmented generation properly, all the tutorials I came across recommended that I use Python and LangCh…

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  1. 2026-09-15 16:51 · DEV Community — AI
    My RAG system's refusal threshold was having no effect. I only found out because I measured it.

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