{"endpoint":"/api/kyh/agent-prompt","method":"POST","description":"Agent adaptation prompt — AI system prompt for personality-aware interaction, LLM context injection, agent behavior customization, how to talk to this person, personalized communication rules","price":"$1.50 via x402 (USDC on Base or Solana)","input":{"birthData":"Optional — enables natal chart framework","textSamples":"Optional — array of { text, context? }","observations":"Optional — behavioral observations","responses":"Optional — socionics questionnaire","context":"Optional — { name?, relationship?, culture? }"},"output":"Ready-to-use system prompt (under 500 tokens), confidence, frameworks used","notes":"Lighter than full portrait. Send whatever data you have — more signals = better prompt."}