bookkeeper-starter: Skill for Claude Code

.claude/skills/bk-onboard/SKILL.md

bk-onboard is a skill for Claude Code from audrey-560/bookkeeper-starter. It costs 74 tokens per session (1,034 once invoked), scanned A, original, MIT.

A guided setup tool for bringing a new bookkeeping client into a bookkeeping project. It asks about the business, tax area, bank accounts, payment services, invoices, and preferences, then creates the client's working files.

In plain words
What is it for?
It is for creating a client profile, chart of accounts, customer list, statement instructions, filing calendar, and initial Google Sheets ledger.
Why use it?
It replaces a long manual setup with a structured interview and prepared client records. Bookkeeping means recording and organising a business's financial transactions.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

This is audrey-560/bookkeeper-starter's own configuration. It tells Claude Code how to work on bookkeeper-starter itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything bookkeeper-starter configures →

Reuse

Borrowing it

Nothing to install: this file belongs to audrey-560/bookkeeper-starter. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/audrey-560/bookkeeper-starter/main/.claude/skills/bk-onboard/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/audrey-560/bookkeeper-starter

Made for: Claude Code.

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 bk-onboard

README.md
[![agentmods](https://agentmods.dev/badge/skills/audrey-560/bookkeeper-starter/bk-onboard/github.svg)](https://agentmods.dev/skills/audrey-560/bookkeeper-starter/bk-onboard)
Your own site
<a href="https://agentmods.dev/skills/audrey-560/bookkeeper-starter/bk-onboard"><img src="https://agentmods.dev/badge/skills/audrey-560/bookkeeper-starter/bk-onboard/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 bk-onboard

Your own site · 80×15
<a href="https://agentmods.dev/skills/audrey-560/bookkeeper-starter/bk-onboard"><img src="https://agentmods.dev/badge/skills/audrey-560/bookkeeper-starter/bk-onboard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,034 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 $0.00074 $0.01034
Opus 5 $0.00037 $0.00517
Sonnet 5 $0.00015 $0.00207
Haiku 4.5 $0.00007 $0.00103

Measured 11d ago against content hash 8230856b5a0e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

bk-onboard 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 11d 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.

.claude/skills/bk-onboard/SKILL.md · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

What This Skill Does

Interviews the user about a business's financial environment, then generates clients/<slug>/ in the bookkeeper project: profile.json, secrets template, customer registry, statement inbox with per-institution instructions, and (on confirmation) a fresh Google Sheets ledger with COA + tabs initialized from the jurisdiction pack. ~15 minutes of questions, then the system is ready for its first /bk-import.

Context

  • cd to the project root first.
  • Reference shapes: clients/sandbox-demo/profile.json (complete example), jurisdictions/*/pack.json (available packs), institutions/registry.json (supported institutions), docs/ONBOARDING.md (full question rationale).
  • The interview fills an answers JSON (same shape as profile.json + optional seed_customers / opening_balances); tools/new_client.py does the generation.

The Interview (1–2 questions at a time, adapt to what they've already told you)

1. Entity & jurisdiction

  • Legal/display name, entity type (corp / sole prop / partnership)
  • Country + province/state → pick the jurisdiction_pack (ca-on is production; us-federal and generic-vat are stubs — warn that a stub means their accountant must review tax treatment)
  • Fiscal year end (MM-DD), sales-tax registration + number + filing frequency, accountant (name + what they need: GIFI? plain statements?)

2. Money map — for EVERY account money moves through:

  • Institution, account nickname, currency, kind (bank / card / processor)
  • How data gets out: API (Wise), CSV download (which institution → check institutions/registry.json; unlisted → generic_csv and capture a sample CSV to build the column mapping NOW, not later)
  • Statement cadence, opening balance + as-of date
  • Assign GLs: banks 1010, 1015, 1020… / cards 2010, 2015… (unique, stable)

3. Revenue

  • Do they invoice? → prefix, starting number, payment terms, remittance details (bank transfer blocks for each currency they bill in)
  • Agencies/platforms that pay them (name, match substrings for deposit detection, commission %, gross-vs-net method)
  • Seed customers: name, currency, domestic-or-foreign (drives sales-tax treatment)

Read the full file on GitHub · 83 lines

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. 11d ago First seen · 83 lines · 74 tokens per session scan A 8230856b5a0e

Subscribe to this mod's changes

bk-onboard is a skill published in the GitHub repository audrey-560/bookkeeper-starter (13 stars, last pushed 1mo ago), licensed MIT. It adds 74 tokens to every session and 1,034 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 2026-08-30.

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