A good prompt often begins as an accident: a particular instruction, example, and model happen to align. Copying the final text preserves the surface, but not the reasoning that made it work.
Prompt Wielder packages the useful context with the prompt. Variables become explicit, versions stay comparable, and the result can be run again without reconstructing the setup from memory. The object is still editable; repeatability should never mean freezing the work.
The product is being built as a local-first library because these workflows often contain private language and unfinished thinking. The goal is not to automate judgment away. It is to give good judgment a form that can be reused.