Slashbooks
Slashbooks is an open-source alternative to QuickBooks. An AI agent you control imports bank and card activity, closes the month, and creates the files your accountant needs. Instead of paying for a hosted bookkeeping SaaS plus an outsourced bookkeeper, you run the workflow yourself: point the agent at CSV or OFX exports from your bank and credit card providers, and it normalizes the transactions, applies a consistent chart of accounts, categorizes each line, flags duplicates and transfers between your own accounts, and reconciles ending balances against your statements.
When the month is closed it produces accountant-ready outputs: a categorized transaction ledger, a trial balance, and profit-and-loss and balance-sheet summaries you can hand to a CPA at tax time. Use this skill when you want month-end close, transaction categorization, reconciliation, or accountant hand-off files produced by an agent working on data you keep locally, so your financial data is never uploaded to a third-party bookkeeping vendor. Licensed Apache-2.0. Homepage: https://slashbooks.org
Installation
Slashbooks is a plugin marketplace, not a single root SKILL.md. Install the plugin, then use /books. Do not git clone the repo into ~/.claude/skills or ~/.agent-skills — that copies the marketplace root, not a loadable skill.
Claude Cowork
- Open Claude → Cowork → Customize → Plugins
- Under Personal plugins, click + → Add marketplace
- Paste
https://github.com/giltotherescue/slashbooks - Click Sync, then install or enable
/books
Claude Code
/plugin marketplace add https://github.com/giltotherescue/slashbooks
/plugin install slashbooks@slashbooks
Codex
codex plugin marketplace add https://github.com/giltotherescue/slashbooks
Then install the Slashbooks plugin from that marketplace.