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.
npx skills add brainbytes-dev/everything-claude-finance --skill deckungsbeitragsrechnunggit clone --depth 1 https://github.com/brainbytes-dev/everything-claude-financeWrote 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.
[](https://agentmods.dev/skills/brainbytes-dev/everything-claude-finance/deckungsbeitragsrechnung)<a href="https://agentmods.dev/skills/brainbytes-dev/everything-claude-finance/deckungsbeitragsrechnung"><img src="https://agentmods.dev/badge/skills/brainbytes-dev/everything-claude-finance/deckungsbeitragsrechnung/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.
<a href="https://agentmods.dev/skills/brainbytes-dev/everything-claude-finance/deckungsbeitragsrechnung"><img src="https://agentmods.dev/badge/skills/brainbytes-dev/everything-claude-finance/deckungsbeitragsrechnung.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.01940 |
| Opus 5 | $0.00000 | $0.00970 |
| Sonnet 5 | $0.00000 | $0.00388 |
| Haiku 4.5 | $0.00000 | $0.00194 |
Grade A, and why
deckungsbeitragsrechnung 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Deckungsbeitragsrechnung
Einstufige und mehrstufige Deckungsbeitragsrechnung, Break-Even-Analyse, Produktionsprogrammplanung und kurzfristige Entscheidungsunterstützung.
When to Activate
- Kurzfristige Preis- oder Produktionsentscheidungen
- Break-Even-Analyse für Produkte, Projekte oder Geschäftsbereiche
- Optimierung des Produktionsprogramms bei Engpässen
- Make-or-Buy-Entscheidungen
- Bestimmung von Preisuntergrenzen
- Sortimentsbereinigung oder -erweiterung
- Mehrstufige Ergebnisrechnung nach Produktgruppen
Core Concepts
Einstufige Deckungsbeitragsrechnung (Direct Costing)
Erlöse (Preis x Menge)
- variable Kosten
= Deckungsbeitrag (DB)
- fixe Kosten (en bloc)
= Betriebsergebnis
Stückdeckungsbeitrag: db = p - k_v (Preis minus variable Stückkosten)
Entscheidungsregel: Jedes Produkt mit positivem Deckungsbeitrag trägt zur Fixkostendeckung bei und sollte kurzfristig im Programm bleiben — auch wenn es die vollen Selbstkosten nicht deckt.
Mehrstufige Deckungsbeitragsrechnung (Fixkostendeckungsrechnung)
Erlöse
- variable Kosten
= Deckungsbeitrag I (produktspezifisch)
- erzeugnisfixe Kosten (z. B. produktspezifische Werbung, Werkzeuge)
= Deckungsbeitrag II (Beitrag der Produktgruppe)
- erzeugnisgruppenfixe Kosten (z. B. Abteilungsleiter)
= Deckungsbeitrag III (Bereichsbeitrag)
- bereichsfixe Kosten (z. B. Werksleitung)
= Deckungsbeitrag IV (Unternehmensbeitrag)
- unternehmensfixe Kosten (z. B. Geschäftsführung)
= Betriebsergebnis
Vorteil: Zeigt, auf welcher Ebene ein Produkt/Bereich nicht mehr zur Deckung beiträgt.
Break-Even-Analyse
Break-Even-Menge:
x_BE = K_fix / db = K_fix / (p - k_v)
Break-Even-Umsatz:
U_BE = K_fix / (1 - k_v/p) = K_fix / DB-Intensität
Sicherheitskoeffizient (Grad der Sicherheit):
SK = (x_ist - x_BE) / x_ist x 100
Gibt an, um wie viel Prozent der Absatz sinken darf, bevor die Gewinnschwelle unterschritten wird. Faustregel: SK > 20 % gilt als komfortabel.
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.
- 10d ago First seen · 192 lines · 0 tokens per session scan A c93e8c39c373
deckungsbeitragsrechnung is a skill published in the GitHub repository brainbytes-dev/everything-claude-finance (5 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,940 tokens. 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 2026-08-31.
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