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feat: add opaque SigV4 host contract - #3

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bobisme merged 1 commit into
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feat/bn-3owu-sigv4-host-contract
Aug 30, 2026
Merged

bobisme merged 1 commit into
mainfrom
feat/bn-3owu-sigv4-host-contract

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@bobisme bobisme commented Aug 30, 2026

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Adds the additive sigil:host/sigv4@1.1.0 contract from D018 while preserving host 1.0 byte-for-byte.

The ABI accepts only an opaque signing grant plus bounded canonical request fields, permits GET/HEAD only, returns a read/close-only response, and exposes no route, authority, credential identity/value, timestamp, signature, body writer, or string-bearing errors.

Independent review: Seal cr-2hvu47 approved exact commit 705e8db with no findings.

Gates passed: just check and exact SDK/Sigil drift. No release or publication.

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bobisme merged commit 78fa32e into main Aug 30, 2026
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bobisme deleted the feat/bn-3owu-sigv4-host-contract branch August 30, 2026 20:56
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