> ## Documentation Index
> Fetch the complete documentation index at: https://project-brain.rocheaiops.net/llms.txt
> Use this file to discover all available pages before exploring further.

# Knowledge tests

> Exercises for document source retention, citation, versioning, invalidation, and rebuild.

Upload a supported non-sensitive text, Markdown, DOCX, or extractable PDF. Verify visible ingestion status, retrieve an answer with a source citation, then re-ingest a changed source under the same source key and inspect its version history.

PASS requires retained original/normalized artifacts, citations with real available locations, and current-version retrieval. Invalidate a document to exclude it from current retrieval without deleting its history. Rebuild only derived indexing state from normalized content.