Phase 1: Extract Footnotes

Parse the DOCX file and build structured data for all subsequent phases.

What This Phase Does

1. Parse word/footnotes.xml via lxml
2. Extract each footnote's runs with formatting flags (italic, small caps, bold)
3. Parse word/_rels/footnotes.xml.rels for hyperlink URLs
4. Build citation registry (hereinafter definitions, author-to-first-cite mapping)
5. Resolve cross-references (supra note [_] placeholders)
6. Extract all URLs for archiving inventory

Script

BB_SCRIPTS=$(${CLAUDE_PLUGIN_ROOT}/skills/bluebook-audit/scripts) && python3 "$BB_SCRIPTS/extract_footnotes.py" --docx <path>

Output: scratch/footnotes_data.json

Gate: Exit Extract

Before proceeding to Check phase:

• scratch/footnotes_data.json exists
• Contains entries for ALL footnotes in the document (verify count)
• Each entry has formatted_text field with inline markup
• Citation registry has hereinafter definitions
• URL inventory extracted

If footnote count doesn't match document: STOP. Investigate missing footnotes before proceeding.

Next Phase

Read ${CLAUDE_PLUGIN_ROOT}/skills/bluebook-audit/skills/audit-check/SKILL.md and follow its instructions.