This skill should be used when the user asks to "estimate complexity", "how many waves", "how long will this take", "scope this out", "is this a big change", or before any non-trivial implementation planning. Surfaces historical plan data to calibrate expectations.
TL;DR: Before estimating waves or complexity, check historical plans for similar work.
.claude/plans/*.md — read the last 20 by modification dateIf the plan has significantly more or fewer waves than historical precedent for similar work, flag it: