3 rules available in the Gemini directory
A structured template for Gemini API system instructions covering identity, behavioral rules, output format, grounding, and safety guidelines.
Google's official Gemini 3 prompting guide covering system instructions best practices. Gemini 3 follows short, direct instructions better than previous versions.
Official Google documentation on using system instructions with the Gemini API. Covers how to set persona, define output formats, specify knowledge cutoff awareness, and configure behavioral constraints programmatically.