Hidden prompts reveal Apple Intelligence’s not-so-secret recipe

On macOS Sequoia 15.1 beta 1, eligible Mac users can access certain system files associated with Apple Intelligence, including hidden prompts. These prompts guide the AI to provide relevant results and avoid hallucinations or negative outputs. Apple Intelligence powers AI features like Writing Tools and summaries on iOS 18.1, iPadOS 18.1, and macOS Sequoia 15.1, with each feature using specific prompts to tailor the output's length, tone, and style. Reddit user Devanxd2000 found json files containing these hidden prompts in the system library. For instance, the smart replies in Apple Mail are generated based on a specific prompt within these files.