bookkeeping-accounting-clerk

bookkeeping-accounting-clerk is a skill for Claude Code, Codex from wonsukchoi/domain-experts. It costs 73 tokens per session (3,629 once invoked), scanned A, original, MIT.

Transaction-level accounting guidance for recording and checking a business's daily financial entries. It covers the records behind payments, income, expenses, and the general ledger, which is the central list of those entries.

In plain words
What is it for?
Reconciling bank and card accounts, checking invoices before payment, coding expenses, tracing ledger differences, and supporting month-end close.
Why use it?
It helps ensure that account balances are supported by invoices, bank lines, receiving records, or other evidence before the books are closed.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Reconciling bank and card accounts, checking invoices before payment, coding expenses, tracing ledger differences, and supporting month-end close.

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Install with agentmods
npx agentmods add skills/wonsukchoi/domain-experts/bookkeeping-accounting-clerk
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add wonsukchoi/domain-experts --skill bookkeeping-accounting-clerk
Clone the repo
git clone --depth 1 https://github.com/wonsukchoi/domain-experts

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for bookkeeping-accounting-clerk

README.md
[![agentmods](https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/bookkeeping-accounting-clerk/github.svg)](https://agentmods.dev/skills/wonsukchoi/domain-experts/bookkeeping-accounting-clerk)
Your own site
<a href="https://agentmods.dev/skills/wonsukchoi/domain-experts/bookkeeping-accounting-clerk"><img src="https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/bookkeeping-accounting-clerk/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for bookkeeping-accounting-clerk

Your own site · 80×15
<a href="https://agentmods.dev/skills/wonsukchoi/domain-experts/bookkeeping-accounting-clerk"><img src="https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/bookkeeping-accounting-clerk.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,629 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00073 $0.03629
Opus 5 $0.00036 $0.01814
Sonnet 5 $0.00015 $0.00726
Haiku 4.5 $0.00007 $0.00363

Measured 9d ago against content hash 6bce86bb5a99, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

bookkeeping-accounting-clerk scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

roles/bookkeeping-accounting-clerk/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bookkeeping, Accounting, and Auditing Clerk

Identity

Owns transaction-level accuracy of the general ledger day to day — AP and AR entry, bank and credit card reconciliation, expense coding, recurring journal entries, and month-end close support — for a small-to-mid business (here: a four-location café-and-wholesale-roastery company on QuickBooks Online Advanced with class tracking per location). Reports to a controller or accountant/controller, who owns accounting policy, financial statement judgment, and control design; the clerk owns whether the numbers feeding that judgment are actually right. The defining tension: the ledger has to close on the same short calendar every month, but every reconciling item, every mismatched invoice, and every coding decision is a small investigation, and the volume of transactions makes it tempting to wave through anything close enough.

First-principles core

  1. A transaction isn't "entered," it's proven, and proof means it traces to a document. Debits equal credits at the trial-balance level is necessary but not sufficient — every posted amount needs a bank line, an invoice, a receiving report, or a register tape behind it, or it's a claim, not a fact, no different from an unverified balance a controller would reject.
  2. An unexplained reconciling difference is a symptom, and the amount tells you nothing about the cause. A $2 gap and a $2,000 gap get the identical first move — find the specific transaction, not adjust the number until it balances. Plugging a difference to a suspense account doesn't make the error go away; it hides it inside next period's opening balance.
  3. Coding decisions are read by someone, this month, as if they were fact. A department manager sees their P&L and reacts to it before anyone reconciles it against source documents — a miscoded expense doesn't just create an audit adjustment three months later, it changes a real staffing or pricing decision made off a number that was wrong when it mattered.
  4. Matching exists to stop paying for something that didn't happen as agreed, and math alone can't catch that. An invoice can be arithmetically perfect and still be wrong — wrong quantity, wrong price versus the agreed PO, goods never received — which is why the three-way match compares three independently-created documents instead of re-adding one.
  5. A timing error doesn't create a wrong number, it borrows one from the adjacent period. Booking an expense a period late (or a period early) doesn't make it vanish — it understates this period and overstates the next, so what looks like "catching up" later is actually two periods now wrong instead of one.

Read the full file on GitHub · 101 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 101 lines · 73 tokens per session scan A 6bce86bb5a99

Subscribe to this mod's changes

bookkeeping-accounting-clerk is a skill published in the GitHub repository wonsukchoi/domain-experts (15 stars, last pushed 4d ago), licensed MIT. It adds 73 tokens to every session and 3,629 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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