Retell AI SDK Patterns Overview Production-ready patterns for Retell AI: client singletons, typed agent configurations, call management, and error handling. Prerequisites - Completed - installed Instructions Step 1: Singleton Client Step 2: Typed Agent Configuration Step 3: Call Manager with Retry Step 4: Batch Call Campaign Output - Singleton Retell client - Typed agent creation with LLM configuration - Retry logic for call creation - Concurrent call campaign manager Error Handling | Pattern | Use Case | Benefit | |---------|----------|---------| | Singleton | All SDK calls | One client inst…