Performs text or regular expression searches across all parts of the fetched record (structured FHIR data + text from notes/attachments). Ideal for finding keywords or specific mentions (e.g., 'diabetes', 'aspirin').
query_record
Executes read-only SQL SELECT queries directly against the structured FHIR data. Useful for precise lookups based on known FHIR resource structures (e.g., finding specific lab results by LOINC code).
eval_record
Executes custom JavaScript code directly on the fetched data (FHIR resources + attachments). Offers maximum flexibility for complex calculations, combining data from multiple sources, or custom formatting.