AlexLiu190625

logbook

Read and write the repository's markdown logbook. Use at the start of a task, before the first edit, to pick up what earlier sessions decided and verified. Use again after finishing work that produced a decision or a verified fact — a choice between options, a root cause, a benchmark result, a discovered constraint — and whenever an earlier logbook entry turns out to be wrong. Also use when asked what was decided before, or why the code is the way it is.