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edgewisedataby Wayne Phillips

Open source · Python

Teaching an AI assistant to do finance work properly

Skills that give Claude Code real competence in Excel finance work, rather than plausible-sounding guesses.

  • Claude Code
  • AI workflows
  • Open source

Detail

A general-purpose assistant writes Excel formulas that look right and quietly are not. The gap is not intelligence, it is standards: it does not know the 5G dynamic-array conventions, it does not know how a recursive LAMBDA should be structured, and it has no opinion about what makes a macro slow.

This repository packages that knowledge as skills — 5G LAMBDA authoring, VBA optimization, and conversation transcript export. Each one encodes a way of working, so the output is consistent rather than improvised.

It is public, MIT-adjacent in spirit, and the most direct evidence on this site that the AI part of my work is practice rather than vocabulary.

The Claude skills repository README, showing a table of the skills — convert-to-5g, compose-5g-lambda, excel-macro-optimizer, copyconvo and ss — each with a description of what it does.