An agent using Claude Haiku 4.5 with extended thinking is running a multi-hour session. The developer notices that after adding a non-tool-result user message, thinking blocks from prior turns disappear from context. What is happening?

What is the key characteristic of Claude Managed Agents (Sessions API) that distinguishes it from st...

A developer is building a production agent that can send emails and delete files. Before executing i...

A developer builds a long-horizon agentic task where a faster executor model handles routine steps b...

An agent uses Context editing (beta) during a long tool-calling session. After 30 tool calls, the co...

A production customer service agent occasionally enters infinite loops — repeatedly calling the same...