32From Product Goals to Hard SLOs and Budgets33Token Economics: Context Discipline, Cascades, and Caching Safely34Latency Engineering: TTFT, Streaming UX, and Parallelism Boundaries35The Reliability Ladder for LLM Systems: Degrade Gracefully36Trust Controls: Citations, Abstention, and Verification Loops37Defensive Design Against Prompt Injection and Unsafe Tool Use
38Privacy, Logging, and Tenant Isolation as System Contracts39LLMOps: Golden Sets, Joint Versioning, and Regression Gates40Capstone Hardening Pass: Update the Assistant Architecture and Rollout Plan