accounted: Skill for Claude Code

.claude/skills/industry/bygg-hantverk/SKILL.md

bygg-hantverk is a skill for Claude Code from erp-mafia/accounted. It costs 262 tokens per session (9,538 once invoked), scanned A, original, no licence file.

A Swedish bookkeeping guide for construction, civil-engineering, installation, and other building trades. It covers situations such as reverse VAT liability between businesses and ROT invoices; ROT is Sweden's tax deduction for certain home-improvement work.

In plain words
What is it for?
Use it for Swedish construction and trades businesses handling B2B construction services, reverse VAT, ROT billing, and related bookkeeping.
Why use it?
Construction invoices can use different VAT and tax treatments depending on the service and customer. The guide helps apply those rules to building work, installations, and ROT jobs.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is erp-mafia/accounted's own configuration. It tells Claude Code how to work on accounted 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 accounted configures →

Reuse

Borrowing it

Nothing to install: this file belongs to erp-mafia/accounted. 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/erp-mafia/accounted/main/.claude/skills/industry/bygg-hantverk/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/erp-mafia/accounted

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 bygg-hantverk

README.md
[![agentmods](https://agentmods.dev/badge/skills/erp-mafia/accounted/bygg-hantverk/github.svg)](https://agentmods.dev/skills/erp-mafia/accounted/bygg-hantverk)
Your own site
<a href="https://agentmods.dev/skills/erp-mafia/accounted/bygg-hantverk"><img src="https://agentmods.dev/badge/skills/erp-mafia/accounted/bygg-hantverk/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 bygg-hantverk

Your own site · 80×15
<a href="https://agentmods.dev/skills/erp-mafia/accounted/bygg-hantverk"><img src="https://agentmods.dev/badge/skills/erp-mafia/accounted/bygg-hantverk.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 262 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,538 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 unknown 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 $0.00262 $0.09538
Opus 5 $0.00131 $0.04769
Sonnet 5 $0.00052 $0.01908
Haiku 4.5 $0.00026 $0.00954

Measured 13d ago against content hash b1f8c0204765, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

bygg-hantverk 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 13d 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/industry/bygg-hantverk/SKILL.md · 194 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

5 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. 13d ago First seen · 194 lines · 262 tokens per session scan A b1f8c0204765

Subscribe to this mod's changes

bygg-hantverk is a skill published in the GitHub repository erp-mafia/accounted (304 stars, last pushed yesterday), with no licence file. It adds 262 tokens to every session and 9,538 once invoked, about $0.0013 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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