Operations

The comparison a filter uses to keep a record, set with the op attribute on a listing-filter or count-filter. Each compares a record’s field to a value, according to the field’s type, so numbers and ISO dates compare in order rather than as text. Every operation is a record in the reference search.

Comparison operators

Operation	Matches when	Example
`eq`	the field equals the value	`op="eq" value="published"`
`ne`	the field differs from the value	`op="ne" value="draft"`
`lt`	less than (numbers, ISO dates)	`op="lt" value="2026-01-01"`
`lte`	less than or equal	`op="lte" value="10"`
`gt`	greater than	`op="gt" value="0"`
`gte`	greater than or equal	`op="gte" value="2026-01-01"`
`contains`	the value appears anywhere in the field	`op="contains" value="caddy"`
`starts`	the field starts with the value	`op="starts" value="How"`
`ends`	the field ends with the value	`op="ends" value=".md"`

An op outside this set is reported against the page and the listing or count, and the site is left unchanged until it is fixed. The same operators serve both a listing and a count.