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Guinness Platform

Jethro — Build Tools, Not Spreadsheets

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Describe it, get a tool

A brief becomes a working toolPlain English"build me a…"Jethrobuilds itBrowser toolone version
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Jethro — Build Tools, Not Spreadsheets2 / 5  ·  v:2b3c4d

Why not a spreadsheet?

  • Spreadsheets drift — formulas break, versions multiply.
  • A proper browser tool has one source of truth.
  • Everyone uses the same version, in the browser.
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Built on the platform

  • Jethro knows the team's data sources and house style.
  • Tools come out on-brand and wired to the right services.
  • From throwaway to maintained, in one step.
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Jethro — Build Tools, Not Spreadsheets4 / 5  ·  v:2b3c4d

Open Jethro

  • Jethro is in your sidebar — open it there and describe the tool you want.
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Jethro — Build Tools, Not Spreadsheets5 / 5  ·  v:2b3c4d

Guinness · Platform briefing

Jethro — Build Tools, Not Spreadsheets

A development assistant that turns a plain-English request into a working browser tool — replacing fragile Excel workflows with something maintained and shared.

Describe it, get a tool#

Jethro is a development assistant. You describe the small tool you need — a calculator, a tracker, a dashboard — and Jethro builds a self-contained browser version of it.

  • Describe the tool you need in plain English.
  • Jethro builds a self-contained browser tool.
  • No spreadsheet to email around and break.
A brief becomes a working toolPlain English"build me a…"Jethrobuilds itBrowser toolone version

Why not a spreadsheet?#

Spreadsheets are where a lot of real work lives, but they drift: formulas break, the wrong version gets sent, and nobody is sure which copy is right.

  • Spreadsheets drift — formulas break, versions multiply.
  • A proper browser tool has one source of truth.
  • Everyone uses the same version, in the browser.

Built on the platform#

Because Jethro is part of the platform, the tools it builds already know the team's data sources and house style — so they come out looking right and pointed at the right services, not as one-off prototypes.

  • Jethro knows the team's data sources and house style.
  • Tools come out on-brand and wired to the right services.
  • From throwaway to maintained, in one step.

Open Jethro#

Jethro is in your sidebar — open it there and describe the tool you want built.

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