Cowork Expense Audit

Organization

OneWave-AI

cowork-expense-audit

Cowork-style sweep of a folder of receipts, statements, and expense exports -- categorizes every transaction, matches receipts to statement lines, flags policy violations and anomalies, and outputs a clean expense report plus a findings memo.

Overview

Publisher	OneWave-AI
Repository	`claude-skills`
Skill name	`cowork-expense-audit`
Stars	293
Forks	49
Bundled files	Instructions only
License	MIT
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by OneWave-AI on GitHub. Read the source before you install it.

Installation

Install the Cowork Expense Audit AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/OneWave-AI/claude-skills.git /tmp/claude-skills
mkdir -p .claude/skills
cp -r /tmp/claude-skills/cowork-expense-audit .claude/skills/cowork-expense-audit

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Cowork Expense Audit in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Cowork Expense Audit on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Cowork Expense Audit is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Cowork Expense Audit

Process an expense folder the way a careful controller does: reconcile receipts against statements, categorize consistently, and separate what is provably documented from what is missing. Input is a directory of receipts (PDF, images), card/bank statements, and any expense exports (.csv/.xlsx). Never invent an amount -- every number in the output traces to a source file.

Workflow

Inventory. Catalog every file: receipts, statements, exports, and unclassifiable items. Note date ranges covered. If statements and receipts cover different periods, say so up front.
Extract transactions. Build a master ledger from the statements/exports: date, merchant, amount, currency. From each receipt: merchant, date, total, tax, payment method, line items when legible.
Reconcile. Match receipts to statement lines (exact amount+date first, then fuzzy within 3 days and small tip/FX variance). Output three lists: matched, statement lines with no receipt, receipts with no statement line.
Categorize every transaction (meals, travel, software, equipment, client entertainment, etc.). Use the company's category list if provided; otherwise propose one and apply it consistently. Tag anything client-billable separately.
Flag. Apply the policy if provided; otherwise apply defaults and label them as defaults: duplicate charges, weekend/holiday spend on business cards, round-number amounts, per-transaction limits exceeded, subscriptions appearing monthly with no owner, personal-looking merchants, and split transactions that dodge an approval threshold.
Report. Write expense-report.xlsx-ready CSV (or .xlsx if the xlsx skill is available) with the full categorized ledger, plus audit-findings.md: totals by category, reconciliation gaps, flagged items each with severity and the specific source file cited, and a missing-documentation list to chase.

Rules

Never fabricate or estimate amounts. An unreadable receipt is logged as unreadable, not guessed.
Flags are questions, not accusations. Write "no receipt located for..." not "unauthorized spend."
Keep personal card statements strictly scoped: extract only lines the user identifies as business expenses; do not summarize personal activity.
Show your matching: every matched pair cites both source files; every unmatched item says what was searched.
Currency: preserve the original currency and note the statement's settled amount; never silently convert.
If more than 20% of transactions lack receipts, lead the findings memo with that fact -- it is the finding.

Scheduled Mode

As a monthly Cowork scheduled task pointed at a receipts inbox folder: process new files, append to the running ledger, and deliver the month's report and findings without re-litigating prior months.

Quick Commands

"Audit [folder]" -- full workflow
"Reconcile only" -- steps 1-3, the matching report
"What's missing?" -- unmatched statement lines and the chase list
"Billable pull" -- client-billable transactions grouped by client

Frequently asked questions

What does the Cowork Expense Audit AI skill do?

Why use Cowork Expense Audit on TypingMind?

Because you install it once and use it with any model. Cowork Expense Audit is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Cowork Expense Audit in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/OneWave-AI/claude-skills/tree/main/cowork-expense-audit. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Cowork Expense Audit?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Cowork Expense Audit?

As many as you like. As long as a model supports skills, you can use Cowork Expense Audit with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Cowork Expense Audit AI skill free?

Yes. It is published on GitHub by OneWave-AI under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Cowork Expense Audit

Workflow

Rules

Scheduled Mode

Quick Commands

Frequently asked questions

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