LedgerPDF
Free, offline, open-source workpaper binder for accountants. Agents connect over local MCP, every change is journaled, and humans still sign off.
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Book-to-Skill
Turns any PDF, EPUB, DOCX or Markdown book into a ready-to-use Claude Skill that loads only the relevant chapters when needed.
Related builds
Leak Radar
Ten free Claude Code skills that hunt money leaks: dead subscriptions, price hikes, idle cash, the right card per purchase, and debt payoff math.
Karpathy-style Second Brain
Complete system using Claude + Obsidian skills that turns your notes into a compounding second brain.
Thimble
Open source Claude Code plugin that explains what an agent did, with visualizations in the terminal.
