Commands & Actions
Delimiters
Markers that separate parts of an input, such as instructions, reference material and examples. Descriptive headings, quotation fences or tags can make that structure clearer. Delimiters are organizational cues, not a security boundary: text inside a marked document can still contain misleading instructions, and a model may still handle the boundary incorrectly.
Reviewed
Sources
Member lesson
The definition and sources are public. The complete practical lesson is for members.