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Exercise: The Ralph Loop

Exercises Jan 22, 2026

unfinished

We'll probably – depending on feasibility – try to use a one-liner to iteratively generate a pure function, possibly from A Library with no Code. I expect to set up a bunch of ephemeral environments for participants.

We might use Claude Code and the Ralph plugin. but my instinct at the moment is to get closer to the metal. Also, the originator says the plugin isn't it.

Caveat – I may have hugely misunderstood the Ralph Loop. Can't know until I've tried it.

Debrief

pick one

  • We'll compare and contrast our building experiences
  • We'll look at the artefacts it makes, and see what they tell us
  • We'll consider what we can give the loop to help it – and how much tests are part of that
  • We'll consider the usefulness of a system called into being without tests, and yet which makes up its tests as it goes.

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James Lyndsay

Getting better at software testing. Singing in Bulgarian. Staying in. Going out. Listening. Talking. Writing. Making.