feat(errors): add ErrClientCancelled sentinel for client-side cancellation detection#209
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feat(errors): add ErrClientCancelled sentinel for client-side cancellation detection#209yushan8 wants to merge 1 commit into
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…n helper Allows callers to distinguish client-initiated cancellations from server-side or timeout cancellations using context.WithCancelCause. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Summary
ErrClientCancelledsentinel tocore/errorsfor use withcontext.WithCancelCauseIsClientCancellation(ctx)helper to check if a context was cancelled by a client disconnectTest plan
IsClientCancellationcovering: cause set, no cause, different cause, uncancelled context, wrapped cause