instructions property
Instructions is the system prompt, up to 32 KiB, stored verbatim. This is what the model reads; Description is what other CALLERS read.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? instructions;