Zsofia - Cost Accountant AI Skill
Know your real cost: a fully-loaded cost-per-unit or cost-per-delivery number, and the product or service line that is losing money.
Claude skill package instant downloadzsofia-cost-accountant.skill
Get this skill and 2,500+ others
$9/mo or $59 a year
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One file, paid once. No updates, no connector.
Costs about the same as 2 months of Library.
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How it works
Ask Zsofia something hard.
Or have every skill inside your AI.
Questions before you buy? A person answers, usually the same day: hello@kissmyskills.com
// the file itself
The first lines of the file your AI will read, exactly as delivered. Nothing rewritten for the page.
You are Zsofia, a Senior Cost Accountant who traces every cost to a driver across job costing, process costing and activity-based costing. You have been activated to show the user what a product actually costs and where margin is leaking.
// what's inside
Manufacturers and service businesses who suspect a product or client is unprofitable but cannot prove it.
// two ways to get it
$9/mo cancel anytime, or $59 a year
$19 one payment
Already on Library or Both? This one is included, no need to buy the file.
// ask your assistant
Go to kissmyskills.com/pages/connector and set up the "Zsofia - Cost Accountant AI Skill" skill (handle: zsofia-cost-accountant) for me
Paste it into Claude, ChatGPT, Claude Code, Cursor or Codex. Your AI walks you through connecting KissMySkills (about 3 minutes, 7-day free trial) and loads the skill. What your AI will read →
Drop Zsofia into Claude and get a senior cost accountant who tells you what something actually costs to make or deliver, and where the margin is really leaking.
Zsofia calculates true cost: job, process, and activity-based costing, standard costing and variance analysis (material, labor, overhead), overhead allocation methods and their pitfalls, COGS and inventory costing (FIFO/LIFO/weighted-average), gross-margin analysis by product or service line, break-even and contribution-margin analysis, make-vs-buy decisions, pricing-floor calculations, and cost-per-delivery analysis for service businesses. She calculates the floor, a pricing strategist decides where above it to price.
What you get
How to install
Download the .skill package, open Claude, paste SKILL.md into your Project Instructions or system prompt, describe your requirement, and Zsofia builds the answer. Includes a full worked example so you see exactly what you get.
After checkout, the download link lands in your inbox. Save the .skill file: Claude takes it as it is.
Any AI chat you already use: Claude, ChatGPT, Gemini, Grok, Copilot or another.
Claude: Settings → Capabilities → Skills, upload the .skill file. ChatGPT, Gemini and others: open the .skill file like a .zip archive and paste SKILL.md into custom instructions or Project instructions.
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required.
With Library there is nothing to download. Connect your AI once, then just ask: "Load Zsofia from KissMySkills."
Know your real cost: a fully-loaded cost-per-unit or cost-per-delivery number, and the product or service line that is losing money. Load it once into Claude Projects and you get a configured Cost Accountant without re-explaining context at the start of every session. Verify current tax, payroll, and securities specifics with a licensed CPA, EA, payroll provider, or attorney before acting. This skill handles the process and the numbers, not licensed advice.
Download the .skill package (it contains SKILL.md), paste the contents into Claude Projects Instructions or your AI's system prompt, add your own context and start your first session. Works with Claude, ChatGPT, or any AI chat that accepts system prompts.
Works with Claude (recommended), ChatGPT, Gemini, Perplexity and Copilot, and any AI chat that accepts system prompts. Claude Projects gives the best results.
Without a skill file your AI starts every session as a general assistant. With Zsofia loaded it applies Cost Accountant methodology from the first message, with consistent quality every time. Verify current tax, payroll, and securities specifics with a licensed CPA, EA, payroll provider, or attorney before acting. This skill handles the process and the numbers, not licensed advice.
This one and 2,500+ others, inside Claude, ChatGPT, Claude Code, Codex or Cursor. Cancel anytime.