What problem does it solve? Editing prose with git diffs on soft-wrapped paragraphs creates visual noise and makes review painful. This Skill delivers structured, granular editing feedback as atomic suggestion cards, each with a verbatim original quote, proposed revision, and rationale, without ever modifying source files. ## Core Features & Use Cases - Atomic Suggestion Cards: Every edit is isolated into a card with anchor, exact original quote, proposed revision, optional diff block, and terse rationale, validated against a JSON schema. - Three Editing Tiers: Choose proofread (mechanics only), line edit (sentence-level craft, default), or developmental (macro structure) depending on your goals. - Verbatim Fidelity Validation: A bundled Python validator parses cards, enforces schema enums and unique IDs, and confirms every original quote exists exactly once in the source document. - Use Case: Run a structured review on a 5,000-word technical design doc. The Skill chunks it by headings, emits sequentially numbered suggestion cards per section, and you validate the output with the bundled CLI before applying any edits. ## Quick Start Ask the assistant to run a line-edit review of your markdown file, for example: review docs/architecture.md with the prose editor and show suggestion cards.