What's changed
total_cost_usd / modelUsage.costUSD now include the 1.1 US-only-inference (data residency) multiplier when the response reports inference_geo: "us"- A result held back for background subagents in one-shot mode now reports
total_cost_usd, duration_api_ms and modelUsage as of its release, not the turn-end snapshot
- Fixed
SYSTEM_PROMPT_DYNAMIC_BOUNDARY in an array systemPrompt being sent to the model as literal text on Bedrock, Vertex, Foundry, and gateway providers
- A repeated
initialize on a running process is now followed by a background_tasks_changed snapshot of the live background tasks, so reconnecting hosts see work that is still running
Update
npm install @anthropic-ai/claude-agent-sdk@0.3.239
## or
yarn add @anthropic-ai/claude-agent-sdk@0.3.239
## or
pnpm add @anthropic-ai/claude-agent-sdk@0.3.239
## or
bun add @anthropic-ai/claude-agent-sdk@0.3.239
