Patterns to make LLM tool calls deterministic in production — JSON schema enforcement, validators, retries, and when constraint decoding actually pays off.
LangGraph v1.2 DeltaChannel slashes checkpoint overhead on long agent threads — the pattern, the wire-format change, and when to migrate from full snapshots.
Kling AI video model from Kuaishou — architecture, capabilities vs Sora and Veo 3, pricing, real production use cases, and where Kling still falls short.