docs: evidence carrier contract spec, registry, and AGENTS.md#415
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jithinraj merged 3 commits intofeat/evidence-carrier-typesfrom Feb 23, 2026
Merged
docs: evidence carrier contract spec, registry, and AGENTS.md#415jithinraj merged 3 commits intofeat/evidence-carrier-typesfrom
jithinraj merged 3 commits intofeat/evidence-carrier-typesfrom
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…-124) Add normative EVIDENCE-CARRIER-CONTRACT.md spec covering PeacEvidenceCarrier type definitions, CarrierAdapter interface, transport size limits (DD-127), receipt_ref integrity (DD-129), and ASI-04 extraction defense (DD-131). - spec: EVIDENCE-CARRIER-CONTRACT.md with RFC 2119 keywords - registry: bump version 0.9.19 -> 0.10.0; add a2a, ucp, stripe entries - AGENTS.md: update A2A Agent Card to v0.3.0 capabilities.extensions[] array - AGENTS.md: update MCP _meta to carrier format (receipt_ref + receipt_jws) - AGENTS.md: add peac-issuer.json and agent-card.json to discovery table
Transport table: remove stale body-embed rows for ACP and x402. Both use PEAC-Receipt header (compact JWS, 8 KB limit) in v0.11.1. Sections 7.3 and 7.5 rewritten to match shipped adapter behavior.
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Summary
EVIDENCE-CARRIER-CONTRACT.mdspec covering the universal evidence carry interface (DD-124, DD-127, DD-129, DD-131)registries.json(version 0.9.19 -> 0.10.0): addsa2a(Linux Foundation),ucp, andstripeentriesAGENTS.mdfor A2A v0.3.0:capabilities.extensions[]array format, carrier metadata layout, updated discovery pathsKey Changes
Evidence Carrier Contract Spec
Normative specification covering:
PeacEvidenceCarrierfield definitions (MUST/SHOULD/MAY per field)CarrierAdapter<TInput, TOutput>interface with extract/attach/validateConstraintscomputeReceiptRef()algorithm (SHA-256 of UTF-8 JWS bytes via WebCrypto)verifyReceiptRefConsistency()tamper detection (DD-129)_meta, A2Ametadata[URI], ACP/UCP/x402/HTTPPEAC-Receiptheader spellingRegistry Updates
agent_protocols:a2a(Agent-to-Agent Protocol, Linux Foundation),ucp(Universal Commerce Protocol)payment_rails:stripe(Stripe payment processing)AGENTS.md
extensionsobject to v0.3.0capabilities.extensions[]arrayorg.peacprotocol/receiptto carrier format (receipt_ref+receipt_jws)peac-issuer.json, updatedagent.jsontoagent-card.jsonTest plan
pnpm buildpasses (77/77, cached)pnpm lintpassespnpm format:checkpassesguard.shpassescheck-planning-leak.shpassesStacked on: PR #414 (
feat/evidence-carrier-types)