calculator-design
Designing interactive calculators (ROI calculators, pricing estimators, savings projections, mortgage calculators, custom assessments) that deliver real decision-support value while serving as lead magnets and qualified-traffic generators. Honest about vanity-calculator (no real value), lead-trap (hides the answer behind email), and transparent-decision-tool (gives the result and earns the email through tiered value) patterns. Triggers on calculator, ROI calculator, pricing estimator, savings calculator, custom calculator, interactive tool, decision tool, financial calculator. Also triggers wh
npx skills add rampstackco/claude-skills --skill calculator-design --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
What it does
Designs interactive calculators (ROI calculators, pricing estimators, savings projections, mortgage calculators, custom assessments) to deliver real decision-support value while acting as lead magnets and qualified-traffic generators. It explains patterns (vanity-calculator, lead-trap, transparent-decision-tool) and specifies triggers (calculator, ROI calculator, pricing estimator, savings calculator, custom calculator, interactive tool, decision tool, financial calculator) and when to use the approach. It also outlines how to design calculators for audience trust and lead quality, and describes calculator design as a subset of lead-magnet design.
How it works
The skill describes concrete design guidelines across multiple sections:
- Input design: ensure necessary inputs, easy provision, and time-conscious defaults; choose appropriate input types (Numeric, Slider, Dropdown, Toggle, Free text) and group related fields with progressive disclosure.
- Calculation logic transparency: provide visible assumptions and formulas or links to methodology pages, and cite sources when benchmarks are used; ensure the math is defendable.
- Result presentation: present a specific, contextualized, actionable headline plus a breakdown, visualization, and possible scenario comparison; avoid burying results or requiring re-entry of inputs.
- Email-capture decision: gate advanced value (PDF, saved scenarios, custom analysis) while offering free headline results, calculation methodology, visualizations, and disclosures upfront; avoid lead-trap patterns.
- Tiered-value structures: implement tiers where Tier 1 is free (headline result, breakdown, methodology, basic visualization), Tier 2 is gated (PDF, saved scenario), Tier 3 is account-gated (save-and-compare across scenarios, advanced analysis, integrations).
- Decision framework: assess whether a calculator is worth investment by considering audience need, non-triviality of calculation, methodology authority, and purpose of follow-up sequences.
When to use it
Use when scoping a calculator for the first time, auditing a calculator that converts but does not qualify, designing the methodology disclosure that earns audience trust, or deciding which features warrant an email gate. The skill emphasizes determining if a calculator is the right investment for a given audience and goal rather than simply building one.
What it can touch
The skill references design concepts and patterns and mentions tools and references, including input types, methodology disclosures, and tiered-value implementations. It specifies the need to show assumptions, sources, and formulas; it mentions PDFs, saved scenarios, and account-based features as gated value in the email-capture framework. The content is descriptive and non-operational; it does not provide executable code or scripts within this section.
Caveats
The material focuses on design philosophy and patterns for calculator-based lead magnets, emphasizing transparency and defensible methodology. It warns against vanity calculators and lead-traps and stresses the importance of credible methodology disclosure and value-based gating. It does not describe engineering implementation details or provide concrete engineering scripts.
# Calculator Design A senior growth practitioner's playbook for designing interactive calculators that deliver real decision-support value while serving as lead magnets and qualified-traffic generators. ROI calculators, pricing estimators, savings projections, mortgage calculators, custom assessments. The discipline of building a tool the audience actually trusts. Most calculators on the web are b
What does the calculator-design skill do?
Designing interactive calculators (ROI calculators, pricing estimators, savings projections, mortgage calculators, custom assessments) that deliver real decision-support value while serving as lead magnets and qualified-traffic generators. Honest about vanity-calculator (no real value), lead-trap (hides the answer behind email), and transparent-decision-tool (gives the result and earns the email through tiered value) patterns. Triggers on calculator, ROI calculator, pricing estimator, savings calculator, custom calculator, interactive tool, decision tool, financial calculator. Also triggers wh
How do I install it?
Run `npx skills add rampstackco/claude-skills --skill calculator-design --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From rampstackco/claude-skills, a repository with 515 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.