- skip_census.py check --require LANE: an optional lane the run took the path for is red when absent, and a name the baseline lacks is red too; self-test cases
- skip-census needs build-guard and reads integration-split's new defaults-on output: any verdict but identical requires unit-split, arm-inproc and arm-monolith, and unproven IPC defaults require the two arm rows
- when transport_pinned.py cannot prove the exclusion, the inproc-acceptance leg runs every entry under its own JUnit stems, integration-all and integration-staged-copy-all
- skip_census.py: an optional row with "instead_of" stands in for a trimmed lane; when it ran, that lane may be absent, and it is required otherwise; self-test on a fallback-shaped directory (green, and red on a vanished name, a new skip or neither lane); write from a fallback run keeps the row of the lane the fallback stood in for
- skip census: two optional -all rows for the inproc-acceptance leg, names borrowed from the monolith-control rows and skip lists equal to the old inproc-acceptance lists (285 and 49)
- the integration legs compute the ctest selection only on the disaggregation branches, which are the only ones that read it
- a baseline row may carry "optional": "<reason>": the lane's absence is a note, and when it runs it is checked like any other lane
- write keeps an optional row (names resolved) when the run did not produce that lane, and keeps the reason on rows it rewrites
- self-test: an absent optional lane is green, a present one with a new skip is red, a plain lane stays required