trigger coverage Shipped
What this lens looks for
Declare the activities and contexts where this guideline should surface, using references/introduction/trigger-guide.md to map topic to triggers. Calibrate: triggers that are too broad make the guideline noise; too narrow and it never appears. Cover the real activities the guideline serves and no others.
What its verifier checks
Triggers map to activities the guideline genuinely serves; none are so broad the guideline would surface irrelevantly; none so narrow that real activities are missed; the trigger-guide was consulted, not guessed.