feat: evidence carrier types and schemas#414
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Ship PeacEvidenceCarrier types (Layer 0, zero runtime) and Zod schemas with shared computeReceiptRef() helper (Layer 1). Includes carrier conformance fixtures (5 valid, 3 invalid) and verifyReceiptRefConsistency() for DD-129 async extraction enforcement. - kernel: PeacEvidenceCarrier, CarrierAdapter<T,U>, CarrierMeta types - kernel: PEAC_RECEIPT_HEADER canonical constant (DD-127) - schema: ReceiptRefSchema, CompactJwsSchema, PeacEvidenceCarrierSchema - schema: computeReceiptRef() with WebCrypto runtime guard - schema: validateCarrierConstraints() transport-aware validation - schema: verifyReceiptRefConsistency() for tamper detection - schema: CARRIER_TRANSPORT_LIMITS per-transport size constants - conformance: 8 carrier fixtures in specs/conformance/fixtures/carrier/ - conformance: carrier category registered in manifest and tracking
This was referenced Feb 23, 2026
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Evidence Carrier Contract + A2A Mapping release. - Bump all 65 workspace packages to 0.11.1 - CHANGELOG entry for Evidence Carrier Contract, A2A mapping, MCP _meta carrier, ACP/UCP/x402 carrier adoption, discovery profile - AGENTS.md: v0.11.1 carrier format, A2A metadata example - Normative specs: EVIDENCE-CARRIER-CONTRACT.md, A2A-RECEIPT-PROFILE.md, MCP-EVIDENCE-PROFILE.md - Registry: a2a, ucp, stripe entries (version 0.10.0) PRs: #414-#421 (8 merged) Design decisions: DD-124 through DD-131
jithinraj
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Evidence Carrier Contract + A2A Mapping release. - Bump all 65 workspace packages to 0.11.1 - CHANGELOG entry for Evidence Carrier Contract, A2A mapping, MCP _meta carrier, ACP/UCP/x402 carrier adoption, discovery profile - AGENTS.md: v0.11.1 carrier format, A2A metadata example - Normative specs: EVIDENCE-CARRIER-CONTRACT.md, A2A-RECEIPT-PROFILE.md, MCP-EVIDENCE-PROFILE.md - Registry: a2a, ucp, stripe entries (version 0.10.0) - Spec fixes: embed-only HTTP in v0.11.1, MCP dual-legacy wording, softened RFC 9711 analogy, DD-129 producer/consumer split, Node >= 20 runtime vs >= 22 dev baseline, fixture description clarity, removed duplicate UCP registry entry PRs: #414-#421 (8 merged) Design decisions: DD-124 through DD-131
jithinraj
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Feb 23, 2026
Evidence Carrier Contract + A2A Mapping release. - Bump all 65 workspace packages to 0.11.1 - CHANGELOG entry for Evidence Carrier Contract, A2A mapping, MCP _meta carrier, ACP/UCP/x402 carrier adoption, discovery profile - AGENTS.md: v0.11.1 carrier format, A2A metadata example - Normative specs: EVIDENCE-CARRIER-CONTRACT.md, A2A-RECEIPT-PROFILE.md, MCP-EVIDENCE-PROFILE.md - Registry: a2a, ucp, stripe entries (version 0.10.0) - Spec fixes: embed-only HTTP in v0.11.1, MCP dual-legacy wording, softened RFC 9711 analogy, DD-129 producer/consumer split, Node >= 20 runtime vs >= 22 dev baseline, fixture description clarity, removed duplicate UCP registry entry PRs: #414-#421 (8 merged) Design decisions: DD-124 through DD-131
jithinraj
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* test(smoke): MCP carrier e2e round-trip Full flow: issue -> computeReceiptRef -> attachReceiptToMeta -> extractReceiptFromMetaAsync -> verifyLocal. No network calls, no clock dependencies; uses deterministic key material for reproducible failures. Tests: - Full round-trip with offline verification - Tampered receipt_ref detection (DD-129) - Legacy org.peacprotocol/receipt extraction with receipt_ref computation - Round-trip carrier field preservation - Null return for missing _meta Also re-enables tests/smoke in vitest config and adds @peac/mappings-mcp alias for root-level test resolution. * chore(release): v0.11.1 Evidence Carrier Contract + A2A Mapping release. - Bump all 65 workspace packages to 0.11.1 - CHANGELOG entry for Evidence Carrier Contract, A2A mapping, MCP _meta carrier, ACP/UCP/x402 carrier adoption, discovery profile - AGENTS.md: v0.11.1 carrier format, A2A metadata example - Normative specs: EVIDENCE-CARRIER-CONTRACT.md, A2A-RECEIPT-PROFILE.md, MCP-EVIDENCE-PROFILE.md - Registry: a2a, ucp, stripe entries (version 0.10.0) - Spec fixes: embed-only HTTP in v0.11.1, MCP dual-legacy wording, softened RFC 9711 analogy, DD-129 producer/consumer split, Node >= 20 runtime vs >= 22 dev baseline, fixture description clarity, removed duplicate UCP registry entry PRs: #414-#421 (8 merged) Design decisions: DD-124 through DD-131
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Summary
PeacEvidenceCarrierpure types in@peac/kernel(Layer 0, zero runtime) and Zod schemas + shared helpers in@peac/schema(Layer 1)computeReceiptRef()(SHA-256 of compact JWS via WebCrypto) with runtime portability guard (Node >= 20, CF Workers, Deno, Bun)validateCarrierConstraints()for transport-aware size enforcement andverifyReceiptRefConsistency()for DD-129 tamper detectionspecs/conformance/fixtures/carrier/PEAC_RECEIPT_HEADERcanonical constant ("PEAC-Receipt") per DD-127Design Decisions
PeacEvidenceCarrier,CarrierAdapter<T,U>,CarrierMetatypes in kernel; Zod schemas + helpers in schemaCARRIER_TRANSPORT_LIMITSper-transport size constants (MCP 64KB, A2A 64KB, HTTP 8KB headers)verifyReceiptRefConsistency()async check:sha256(receipt_jws) === receipt_refKey Types
Test plan
computeReceiptRef()produces deterministicsha256:<hex64>outputvalidateCarrierConstraints()enforces transport size limits from CarrierMetaverifyReceiptRefConsistency()detects tampered JWS (DD-129)crypto.subtlepnpm build && pnpm lint && pnpm typecheck:core && pnpm testpasses (77/77 build, 4246 tests)guard.shandcheck-planning-leak.shpass