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fix(core): never send notifications/cancelled for the initialize hand… (#2668)

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Co-authored-by: Felix Weinberger <fweinberger@anthropic.com>
Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
This commit is contained in:
Konstantin Konstantinov 2026-08-17 14:09:11 +03:00 • committed by GitHub
commit 3e90449fd5
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1 changed files with 109 additions and 33 deletions
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9
test/e2e/requirements.ts
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@ -140,15 +140,10 @@ export const REQUIREMENTS: Record<string, Requirement> = {
note: 'Stateless hosting creates a fresh server per request and has no standalone GET stream, so there is no server→client channel to deliver/observe these.'
},
'protocol:cancel:initialize-not-cancellable': {
transports: STATEFUL_TRANSPORTS,
transports: ['inMemory'],
source: 'https://modelcontextprotocol.io/specification/2025-11-25/basic/utilities/cancellation#behavior-requirements',
behavior: 'The client never sends notifications/cancelled for the initialize request.',
note: 'Stateless hosting creates a fresh server per request and has no standalone GET stream, so there is no server→client channel to deliver/observe these.',
knownFailures: [
{
note: 'SDK sends notifications/cancelled for initialize when connect() is aborted; spec says initialize MUST NOT be cancelled.'
}
]
note: "The behavior itself is transport-agnostic (shared/protocol.ts), but the test must tap the client's outbound messages before connect() resolves, which only the in-memory wiring supports."
},
'protocol:cancel:late-response-ignored': {
source: 'https://modelcontextprotocol.io/specification/2025-11-25/basic/utilities/cancellation#timing-considerations',