Skills for Real Engineers. Straight from my .agents directory.
calculator-design
Agent skill fromrampstackco/claude-skills
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 when an audience needs a calculation-driven lead magnet, when a vanity calculator is producing leads but no qualified ones, or when a calculator is being scoped for the first time.
How to install calculator-design
npx skills add rampstackco/claude-skills# or add only this skill to Claude Code: copy the folder
skills/calculator-design/
# into
~/.claude/skills/calculator-design/ (all projects)
.claude/skills/calculator-design/ (one project)
1# Calculator Design23A 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.45Most calculators on the web are bait. Random multipliers behind official-looking math; an "Industry Average" number that does not cite a source; the result hidden behind a contact-sales form. The calculator captures emails because the format implies calculation; the leads are unqualified because the calculator did not actually help anyone decide anything.67The calculators that work as compounding assets do something different. They give the audience a result they can defend to a stakeholder. They show the methodology so the result is interrogatable. They capture leads through value (a PDF report, a save-and-compare account, a custom analysis) rather than through manipulation.89This skill is one of the specific lead-magnet types covered as its own skill. The parent-frame methodology lives in `lead-magnet-design`; the calculator-specific methodology (calculation transparency, tiered value, methodology disclosure) lives here.10…
Excerpt shown under the repository's MIT license.
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