Part 1: Goals ⚠️ When to Unzip vs Read To preserve ANY formatting from the source document, MUST unzip and parse XML. Read tool returns plain text only — fonts, colors, alignment, borders, styles are lost. | Need | Method | |------|--------| | Text content only (summarize, analyze, translate) | Read tool is fine | | Formatting info (copy styles, preserve layout, template filling) | Unzip and parse XML | | Structure + comments/track changes | | Core Principles 1. Preserve formatting — When editing existing documents, retain original formatting. Clone and modify, never recreate. 2. Correct feat…