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rag-eval

Filesystem RAG benchmarks: corpus/, train.json, evaluate_rag.py (RAGAS quality). Not for prod monitoring, latency/throughput benchmarking (use rag-perf), or evals outside this repo layout.

skills/rag-eval/SKILL.md

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# On-disk RAG evaluation (`corpus/` + `train.json`)

## Purpose

Guide agents through NVIDIA RAG Blueprint **filesystem** benchmarks: preparing `corpus/` and `train.json`, running `scripts/eval/evaluate_rag.py`, tuning retrieval and generation flags for **quality** comparisons, interpreting RAGAS JSON outputs, and triaging failures (HTTP/stream errors, empty contexts, collection mismatch, judge API).

For **latency, throughput, and load testing**, use the **rag-perf** skill (`scripts/rag-perf`, `docs/performance-benchmarking.md`) — not this skill.

## When not to use

Do **not** use this skill for: deploying or repairing services (use rag-blueprint); evaluating APIs without the `corpus/` + `train.json` layout; general ML experimentation unrelated to this evaluator; production monitoring/alerting; or latency/throughput benchmarking (use **rag-perf**).

## Prerequisites