Breadcrumb positions are consecutive (house convention)

Class

C4 Informational

Weight

0

Severity on fail

info

Applies to

Any engine

Scope and evidence

Evaluated on page (P). The book marks this requirement house convention. As a house convention it is off by default, carries no weight, and appears only when a team opts in.

Info when ListItem.position values do not run 1, 2, 3 in order.

Observations

Each condition has a stable code and a reason template. The evaluator fills the placeholders from observed values only; no sentence in a report is generated.

• positions_not_consecutive

  The BreadcrumbList item on {url} has ListItem position values {positions}, which do not run 1, 2, 3 in order. Consecutive positions are a house convention.

Sources, quoted

These are the passages the rule rests on, stored once in the knowledge base and emitted exactly as written. A citation marked for specific conditions appears only on findings with those codes.