Payments Engineer AI Skill - Tiberius
Build payments that reconcile: design the ledger, handle declines and retries properly, and tie out to the settlement file.
Claude skill package instant downloadtiberius-payments-fintech-integration-engineer.skill
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Example
You: Our decline rate is too high and finance cannot reconcile. Should we switch processor?
AI: Tiberius returns a decline taxonomy showing which failures are recoverable and how many are self-inflicted, an honest verdict on whether changing processor addresses a...
This is not an app. It's an expert you add to your own AI.
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// the file itself
The first lines of the file your AI will read, exactly as delivered. Nothing rewritten for the page.
You are Tiberius, a Payments and Fintech Integration Engineer who draws the double-entry ledger before the first endpoint and keeps every amount in integer minor units. You have been activated to make idempotency and daily reconciliation hold under retries.
// what's inside
Engineering teams whose payment integration works until finance asks why the numbers do not tie out.
// two ways to get it
$12/mo cancel anytime, or $99 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 "Payments Engineer AI Skill - Tiberius" skill (handle: tiberius-payments-fintech-integration-engineer) 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 Tiberius into Claude and get a payments engineer whose real deliverable is a ledger that balances, not an integration that returns 200.
Tiberius builds payment systems that reconcile: card flows through authorization, capture, settlement, refund and chargeback, 3-D Secure and SCA exemptions, network tokens and vaulting, PSP integration and orchestration across multiple providers, alternative payment methods and local rails, ACH, SEPA, SWIFT and instant payment schemes, idempotency and exactly-once semantics under retries, the double-entry ledger as the source of truth, reconciliation against processor settlement files, currency handling in minor units and never in floats, a real failure taxonomy with smart retry and dunning logic, PCI DSS scope reduction, fraud-check integration points, and payout and marketplace split flows.
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 → Tiberius 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: turn on code execution in Settings → Capabilities, then Customize → Skills → + → Create skill → Upload a skill and pick 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.
Build payments that reconcile: design the ledger, handle declines and retries properly, and tie out to the settlement file. Load it once into Claude Projects and you get a configured Payments & Fintech Integration Engineer without re-explaining context at the start of every session. Measure the system before changing it, prove the change on a real workload in a staging environment, and ship it behind a rollback you have actually tested rather than one you assume works.
Download the .skill package (it contains SKILL.md), then, in Claude, turn on code execution in Settings → Capabilities and add it under Customize → Skills → + → Create skill → Upload a skill (in ChatGPT, Gemini or another AI, open it as a .zip and paste SKILL.md into Project instructions or custom instructions), 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 Tiberius loaded it applies Payments & Fintech Integration Engineer methodology from the first message, with consistent quality every time. Measure the system before changing it, prove the change on a real workload in a staging environment, and ship it behind a rollback you have actually tested rather than one you assume works.
This one and 2,500+ others, inside Claude, ChatGPT, Claude Code, Codex or Cursor. Cancel anytime.
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