Paper Audit Skill v6.0

paper-audit is deep-review-first: behave like a serious reviewer — find technical, methodological, claim-level, and cross-section issues; keep script-backed findings separate from reviewer judgment; return a structured issue bundle plus a revision roadmap. Use it for audit and review, not as the first tool for source editing, sentence rewriting, or build fixing.

A script-backed PRESUBMISSION layer handles final-week mechanical checks (em dashes, AI-tone term frequency, abstract completeness, LaTeX citation/label/equation hygiene, paragraph-shape weak signals, concrete captions). It plugs into existing modes and is not a separate public mode; see references/PRESUBMISSION_GUIDE.md.

Requirements: .tex/.typ audit needs only the Python standard library. PDF mode needs pip install pymupdf (the enhanced extraction path also needs pymupdf4llm); both are optional and lazily imported — a .pdf input without them fails with a clear install hint.