Prompt Files That Age Well

A prompt held in a chat window is not an asset. The same prompt in a file, with a name and a history, is.

Diffing prompts changes how you write them — you start editing for the delta rather than rewriting from scratch each time.

A prompt in a chat window is not an asset. In a file with a history, it is.

There is no schedule for prompt review. The trigger is a bad output: open the file, change one thing, note why.

This guide is still being written from a live library — the structure section will expand as the naming scheme settles.