Data

data attaches named values to the diagnostics of a rule. The panel can show them, and tools reading the diagnostics can use them without parsing the message. Include the measured value and the thresholds that caused the report.

An entry is a field path, or a constant { "literal": value }:

"data": { "scalePercent": "clip.scale", "min": "options.min", "max": "options.max" }

A constant is useful to tell which check fired:

"data": { "reason": { "literal": "opacity" }, "value": "clip.opacity" }

data at the top of the rule file applies to every check. A check's own data is merged over it. The top-level entries must be valid in the scope of every check.