Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Context WindowArea: what it touches
Internal ChangesKind: in v2.1.260,
Internal ChangesSection of the release
Context-usage requests to a remote/cloud session can now request a summary detail level via { subtype: "get_context_usage", detail: "summary" }, returning a lighter payload that just enumerates memory file names and token counts for the new memory viewer, separate from the full context payload used by /context.
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed sinceAnthropic's documentation has since written up get_context_usage, on Agent SDK reference - Python.async def get_context_usage(self) -> ContextUsageResponseagent-sdk/pythonsee the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up get_context_usage, on Agent SDK reference - Python.
