First measurement of schedule hygiene (issue #143): the headless
gameplay cluster (Game/Table/Card/Hud/AutoComplete/UiModal/UiFocus/
Settings) carries 302 system pairs with conflicting data access and no
ordering edge. Too many to triage in one pass and most are likely
benign event/resource writers — but unproven, and nothing stopped the
count from growing.
New schedule_checks test builds the cluster with ambiguity detection
promoted to error, parses the reported pair count, and asserts it never
exceeds AMBIGUITY_BASELINE (302). New ambiguous pairs now fail CI at
the PR; the legacy backlog can be burned down incrementally by adding
.before/.after or .ambiguous_with and lowering the baseline.
Refs #143
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
funman300