BOOTH: an open-source Python checkpoint layer for validating LLM outputs
Cowboy_28 · reddit · 2026-10-03
BOOTH is a lightweight Python library that validates LLM outputs before they reach your application. check()/acheck() handle ambiguity and confidence checks, while checkwithevidence() compares answers against evidence retrieved by a RAG pipeline.
Version 0.5.2 is dependency-free, provider-agnostic, sync + async, backed by 300 tests, MIT-licensed. The author has open Hacktoberfest issues for provider examples, docs, and structured-output parsing.
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