Record

UR-03

Status

in force

Built

a standing rule

Decided

2026-09-28 by the user

Caching never sacrifices a harness function

A prompt-cache gain never removes or degrades a harness function (dynamic tools and breakers, workspace awareness, memory recall, summaries, the repo map, notices, trimming) without a written pros/cons analysis and the user’s approval. The default is a layout that keeps both the function and the cache (volatile content moves to the tail instead of being dropped).