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[factory] Delivery options: envelope, deliveryHeaders, nonRetryableStatuses — pr-open - #60
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For receivers with their own delivery conventions, such as MCP Events webhook mode: send the payload as the body, add per-attempt headers, and fail a delivery at once on statuses like 410 without hurting endpoint health. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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NickolasBenakis
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NickolasBenakis
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November 13, 2026 21:34
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Three delivery options for receivers with their own conventions. MCP Events webhook mode (SEP-3415) needs all three; they're general enough to stand alone.
envelope: falsesends the payload itself as the signed body, instead of{"type","timestamp","data"}.deliveryHeaders(delivery)adds request headers per attempt, e.g. a routing id. It can't setcontent-type,user-agentorwebhook-*; if it throws, the attempt fails and is retried.nonRetryableStatuses(e.g.[410, 413]) fails a delivery on the first such response and leaves the endpoint's health alone, since the receiver answered.Defaults are unchanged, so existing deliveries behave exactly as before.
Verification
pnpm typecheck,pnpm lint,pnpm test: 347 tests pass, 10 of them new intest/delivery-options.test.ts.Decision Log
envelopeis applied when a worker builds the body, so the workers' setting is what counts (documented).nonRetryableStatuses.Follow-ups
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