Source: Schema.org v30.1 vocabulary. Official instrument property definition.
What does instrument mean?
The object that helped the agent perform the action. E.g. John wrote a book with *a pen*.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status