fact-checklisted

# Claim–Source Fact Checker ## Heritage and scope This is an original Open Science Skills workflow. It extends `citation-check` (which verifies a citation *exists*, resolves, and is formatted) to the next question: does the cited *source* actually support the *claim* it is attached to? It checks claims against the project's **per-source Markdown knowledge base** — one Markdown file per cited source, each converted or summarized to `sources/md/<author>-<year>-<slug>.md` by whatever intake workflow the project uses. This is local-source verification, not open-web fact-checking: it audits whether a manuscript's sentences are backed by the documents the author has actually read and filed. Run once a draft has citations and a populated knowledge base. ## Instructions ### 1. Pre-flight gate — orient, then refuse if the knowledge base is not ready **Orient.** Identify the inputs: - **Manuscript source:** LaTeX, Markdown, Word/PDF text, or pasted prose with citations or footnotes. - **Bibliography:** `.bib`, CSL JSON, or reference list — used to resolve cite keys to author-year-title so source files can be found. - **Knowledge base:** the project's per-source Markdown directory. Search in order: `sources/md/`, `knowledge_base/md/`, `sources/`, `knowledge_base/`, then any chapter-local `*/sources/`. Also read any index or crosswalk file (`sources/inventory.md`, `notes/source_map.md`, `*source*crosswalk*`, `*source*matrix*`) that maps bib keys or titles to files. - **Scope:** who