# Concept facts files Load the preserved concept tree as source-cited Markdown facts. The [context index](/context/) lists concept facts under the roots of the [concept tree](/tree/). The source directory and scraped reports are no longer published. ## Read a concept Fetch `/context.md` to choose a concept, then fetch its `/downloads/concepts/.md` file. Each file includes its summary, facets, facts and related concepts. Facts retain their original source identifiers. Archived report identifiers appear as text because those reports are no longer hosted here. External primary sources remain links. The files use `text/markdown`. Each banner records the pack date and an estimated token count. Publication does not certify independent review or factual accuracy.