Book Mirror
Take any book (EPUB/PDF), produce a personalized chapter-by-chapter analysis.
Install
npx skills add garrytan/gbrain --skill book-mirror -g -a claude-code -y- Repository
- garrytan/gbrain31.4k
- Category
- Documents
- Updated
- 3d ago
- License
- MIT
- Context cost
- Mediumabout 3,000 tokens
- Runs scripts
- No, instructions only
What it does
Take any book (EPUB/PDF), produce a personalized chapter-by-chapter analysis. Each chapter is preserved in detail (The Chapter) and mirrored back to the reader's actual life (The Mirror) using brain context. The mirror observes and resonates, a friend pointing out parallels, NOT a consultant rearranging the reader's life, NOT a therapist assigning homework. The reader decides what to do about it. Layout is a top-aligned HTML table or stacked sections, never a bare markdown pipe table (pipe tables center-misalign uneven columns). Output is a single brain page at media/books/<slug>-personalized.md plus an optional PDF via brain-pdf.
book-mirror, Personalized Chapter-by-Chapter Book Analysis
Convention: see _brain-filing-rules.md for the sanctioned
media/<format>/<slug>exception this skill files under.Convention: see conventions/quality.md for citation rules, back-link enforcement, and output quality bars.
Convention: see conventions/brain-first.md for the lookup chain (brain → search → external) the context-gathering phase follows.
What this does
Given a book (EPUB or PDF), produce a brain page where every chapter is
summarized in detail on one side ("The Chapter") and mirrored back to the
reader's actual life on the other ("The Mirror"), using their own words,
situations, people, and patterns from the brain. Output is a brain page at
media/books/<slug>-personalized.md.
This is NOT a generic book summary. The mirror is the value: it makes the book read like a smart friend who happens to know the reader's life deeply is pointing things out in the margins. The mirror's job is recognition, "that's exactly me", and then getting out of the way. If the user wants a flat summary instead, route them to a different skill.
Trust contract (read this before running)
book-mirror runs as a CLI command (gbrain book-mirror), NOT as a pure
markdown skill that the agent dispatches via tools. The CLI is the trusted
runtime; the skill is the orchestration prose around it.
What this means for the agent:
