expense-categorization SKILL.md skillA

expense-categorization from receiptor-ai/bookkeeping-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add receiptor-ai/bookkeeping-skills/expense-categorization@v3.0

Pins v3.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
receiptor-ai/bookkeeping-skills
Path
skills/expense-categorization/SKILL.md
Versions recorded
2
Latest version
v3.0, committed Mar 24, 2026
First version recorded
Mar 24, 2026
Size
8,737 bytes
Repository stars
8
License
MIT

Assign transactions to tax-aligned expense categories using vendor name, line items, and amount patterns. Handles ambiguous vendors like Amazon by inspecting line-item detail from the receipt source. Supports split categorization and learns from user corrections. Trigger on "categorize expenses", "sort transactions", "assign expense categories", "what category is this".

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Expense Categorization

Assign every transaction to the correct expense category so it flows to the right line on a tax return, produces accurate financial statements, and survives an audit.

## Read these when needed

- Read [references/DECISION-RULES.md](references/DECISION-RULES.md) when deciding whether a category is safe to auto-assign or should go to review.
- Run `scripts/category_review_summary.py` when you already have categorized records and need a deterministic summary by confidence, category, and review status.

## Why categorization matters

The IRS doesn't audit "total expenses." It audits individual line items on Schedule C (or the equivalent form for your entity type). A business that lumps everything into "Other Expenses" invites scrutiny. Proper categorization also reveals spending patterns — you can't cut costs you can't see.

For the full Schedule C line-by-line reference (Lines 8–27a with what belongs and what doesn't), see the **schedule-c-categories** skill.

## Categorization logic

### Primary signal: vendor name

Most categorization comes from the vendor name alone. Use the mapping table below to auto-categorize high-confidence vendors.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add receiptor-ai/bookkeeping-skills/expense-categorization@sha256:dcd96a0229901403

The line at the top of this page pins the label v3.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_qqw5mmdu7me3r7tt.svg)](https://markdownregistry.com/a/art_qqw5mmdu7me3r7tt)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Mar 24, 2026.

versioncommittedcommitsizeaudit
v3.0 latest2026-03-24 23c5676 8,737 BA view · diff
git:20260324.5e6a98c2026-03-24 5e6a98c 8,286 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (8737 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

receiptor-ai/bookkeeping-skills · 8 stars · license MIT · pushed 2026-10-22 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qqw5mmdu7me3r7tt
GET https://markdownregistry.com/api/v1/resolve?ref=receiptor-ai/bookkeeping-skills/expense-categorization
GET https://markdownregistry.com/api/v1/blob/dcd96a0229901403d3687e40f647bf9322e184c9135d6f808c1c3821f73eef38

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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