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← Back to all updatesPublished ·Anthropic• Minor
Claude Managed Agents launched in public beta for autonomous Claude sessions through the API.
The read
The agent runtime moves into Anthropic’s API, with sandboxing, tools, containers, and streaming handled inside the harness.
The frame
It sits next to the ant CLI as a faster API path for creating agents, configuring containers, and running sessions.
Primary source
Anthropic →Keep reading
See what Nova3 builds →Related updates
- Jun 12, 2026Anthropic publicly documented stop_details on refusal responses, with category and explanation fields for routing.
- Jun 12, 2026Claude Opus 4.8 defaults the effort parameter to high across all surfaces.
- Jun 12, 2026Claude Opus 4.8 lowers prompt caching’s minimum cacheable prompt length to 1,024 tokens versus Opus 4.7.
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