V3 deterministic document-parse capability pack. By-value connector composition (service_kind=cli, no separate ingredient): the local docling CLI parsing a source document (PDF / DOCX / PPTX / HTML / image / spreadsheet / email / audio) into Markdown the model can read, via the document.to_markdown catalog operation. Fixed-function and reproducible — conversion happens locally before any model sees the content. Write-tier but approval=never: the parse is a faithful local file write into an engine-managed throwaway temp dir, ingested into data.file.received (CAS) and surfaced as result.file_ref; the temp dir is removed after capture, so the only durable copy is the content-addressed, Gateway-gated data.file record (output_capture). A downstream ai-* step reads the parsed Markdown via { file_ref } so the content never flows through op-step values. Large/heavy PDFs (docling runs ML layout/OCR) can exceed the 90s foreground cap; those ride a detached execution path when it lands. Part of the Lane-1 deterministic document toolkit alongside pandoc-pack (render). Supersedes the legacy document-normalization ingredient pack.