nx_costcal.nx

nx_costcal.nx -- THE COST CALIBRATION CENSUS (2026-09-16): every board's declared rung cost (u) against the wall-clock its own journal recorded from the rung's first row to its last land row, written as the ledger the compare emitter and the ranker read to turn u into hours. nx_costcal [ledger-path] population = regen.list (published order, both trees); default ledger knowledge/status/costcal.ledger, truncate-written; verdict LAST exit 0 CALIBRATED | 1 UNCALIBRATED (fewer calibrated rungs than the distinct-rank floor) | 3 NO-POPULATION WHY. The plan's unit row says "estimates recalibrate as rungs land and PR7 actuals write back" and PR7 stayed _ABSENT_ since 2026-08-20, so every u on every board has been a declaration with no ratio to hours behind it. The record already holds the actuals: more than a thousand land rows across the boards (a grep of buildroot/knowledge/compare hit its 1 MiB capture on them, 2026-09-16). This organ reads them all, excludes by name what cannot be calibrated (a land row that is the rung's first row; a rung with no declared cost), and publishes the quantiles with their n. ONE grammar for the ledger line lives in nx_costest_lib, shared with every reader, so the writer and the readers cannot drift. license_tier: ORIGINAL No hw writes (Rule 26).