Govern your documents like code. MCP server that indexes .md/.docx/.html/.pdf into a SQLite knowledge graph and runs drift audits — stale policies, conflicting research claims, superseded docs, undocumented code exports. 12 MCP tools incl. cross-reference graph, governance + provenance metadata, topic similarity. Single binary, zero runtime deps.
DocDag reads a directory of Markdown documents with YAML frontmatter, extracts a typed directed graph from it, enforces DAG invariants on that graph, and answers queries about it.