Rubric / Readability
Heading hierarchy
content.headings_hierarchy
weight 1heuristic
Heading hierarchy is well-formed (one H1, no skipped levels).
Definition
Check ID
content.headings_hierarchy
Category
Readability
Weight
1
Counts toward the score
Yes.
Evaluated by
A fixed rule whose threshold AgentSpeed chose. Reproducible; another rubric may reasonably disagree.
Chosen parameter
rule = single H1, no skipped levels
Standard maturity
established
Introduced in
r2026.04.1
Retired in
Still active.
History
Every change to the instrument— including the versions that changed this check
Machine-readable
/rubric.json— this check, and every other, as data
How often this check is right
No rate published. Too few labelled cases to publish a rate: 1 flagged case (30 needed to publish), 1 defective case (30 needed to publish). The counts are the honest answer here. The matrix behind content.headings_hierarchy is 5 labelled cases — reported here rather than turned into a percentage that would read as more certain than the evidence is.
Corpus v1, measured under rubric r2026.11.0. Full method and every other check at /rubric/accuracy.
How to fix it
Use a single H1 and avoid skipping heading levels (H1 → H3).
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