calculator-design SKILL.md skillA
calculator-design from rampstackco/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add rampstackco/claude-skills/calculator-design@git:20260810.e5bc675Pins git:20260810.e5bc675 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- rampstackco/claude-skills
- Path
skills/calculator-design/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260810.e5bc675, committed Aug 10, 2026
- First version recorded
- May 7, 2026
- Size
- 23,782 bytes
- Repository stars
- 1,037
- License
- MIT
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…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# 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 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. The 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. …
Read the whole file at its exact version.
How to install
mdr add rampstackco/claude-skills/calculator-design@sha256:8ed49b0354545176The line at the top of this page pins the label git:20260810.e5bc675, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ke6fds2lcry6cjs6)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 7, 2026 and Aug 10, 2026, about one every 48 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260810.e5bc675 latest | 2026-08-10 | e5bc675 | 23,782 B | A | view · diff |
| git:20260507.ac2b078 | 2026-05-07 | ac2b078 | 23,259 B | A | view · diff |
| git:20260507.30dd8c0 | 2026-05-07 | 30dd8c0 | 22,906 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (23782 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
rampstackco/claude-skills · 1,037 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ke6fds2lcry6cjs6 GET https://markdownregistry.com/api/v1/resolve?ref=rampstackco/claude-skills/calculator-design GET https://markdownregistry.com/api/v1/blob/8ed49b0354545176dfb7f92f03b487c1b0647dda7a594be21cf31bd0628df9e3
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.