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Tool Builder

Write one prompt. We handle the rest.

Keep it short. Add a market only if it matters. The builder turns one use case into one tool page with inputs, result flow, guide, and preview.

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Refine this tool

Only change the prompt if you want a stronger rebuild. For small fixes, use the editor below.

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Refine guidanceRebuild only for a narrower angle, another market, or a stronger structural rewrite.
Prompt strength0/100
Reference toolNone
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Verify it, fix issues, save it, then publish.

Needs reviewGeneral
Duplicate riskClear enough
FormulaValid
AI quality reportStrong · 90/100
Language consistencyOne language used across public content.
Scenario realism2 practical examples detected.
FAQ utility2 FAQ items look usable.
AI self-checkNo blocking self-check issues found.
Fix nextResolve top governance warnings before sending to review.

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Tool preview

Use the preview as your main working area.

Tap any section for a quick fix.

Calculator

Loan Payment Planner

Estimate monthly loan payment from principal, annual interest, and term using a standard amortization formula.

Quick startUses a realistic financing scenario with fixed rate, long term, and small monthly fees.

Loan 250000, annual interest 5.2, years 30.

Inputs

Estimated monthly payment

--Run the calculator to get an AI-style explanation of the result.

FAQ

Common questions

Does this include insurance or fees?

No. It focuses on principal and interest payment only.

Can this be used for mortgage comparison?

Yes. It provides a baseline monthly payment estimate for mortgage-style loans.

Examples

Try these scenarios

Guide

How to use this tool

This starter helps users compare borrowing scenarios quickly. It uses a transparent amortization formula with stable defaults and easy-to-edit assumptions.