Cancellation changedspecification/2025-11-25/basic/utilities/cancellation
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Upstream edited this page at 20 Oct 2026 20:02 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Oct 2026 20:37 UTC.
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2929 * Were previously issued in the same direction
3030 * Are believed to still be in-progress
31312. The `initialize` request **MUST NOT** be cancelled by clients
323. For [task-augmented requests](./tasks), the `tasks/cancel` request **MUST** be used instead of the `notifications/cancelled` notification. Tasks have their own dedicated cancellation mechanism that returns the final task state.
323. For [task-augmented requests](/specification/2025-11-25/basic/utilities/tasks.md), the `tasks/cancel` request **MUST** be used instead of the `notifications/cancelled` notification. Tasks have their own dedicated cancellation mechanism that returns the final task state.
33334. Receivers of cancellation notifications **SHOULD**:
3434 * Stop processing the cancelled request
3535 * Free associated resources
No line in this hunk matches that.