Rhwp Edit

This is your go-to tool for programmatic HWP document editing when you need to preserve formatting. It wraps the @rhwp/core WASM engine in a Node CLI that can insert text, delete ranges, find-and-replace across paragraphs, create tables, and fill cells without breaking binary structure. Think "2025 to 2026" across a grant application without touching styles, or injecting a 3x4 table into section 0, paragraph 1. One big gotcha: HWPX files come in but only save as HWP binary because upstream blocked HWPX round-trips in issue #196, so don't count on preserving that format. For read-only conversion to Markdown or JSON, use the separate hwp skill instead.