Relay proto: well-known endpoint resolver + RAMP* prefix purge

conformance/corpus/cases.json

@@ -103,6 +103,23 @@
       ]
     }
   },
+  {
+    "id": "AgentAcceptance/signature/too_short",
+    "message": "AgentAcceptance",
+    "valid": false,
+    "rules": [
+      "string.min_len"
+    ],
+    "json": {}
+  },
+  {
+    "id": "AgentAcceptance/valid",
+    "message": "AgentAcceptance",
+    "valid": true,
+    "json": {
+      "signature": "x"
+    }
+  },
   {
     "id": "AuthorizedExchange/relationship/not_in",
     "message": "AuthorizedExchange",
@@ -1615,13 +1632,17 @@
     ],
     "json": {
       "idempotencyKey": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      "offer": {
-        "offerId": "offer-seed",
-        "pricing": {
-          "model": "PRICING_MODEL_FREE",
-          "rate": "0"
+      "items": [
+        {
+          "offer": {
+            "offerId": "offer-seed",
+            "pricing": {
+              "model": "PRICING_MODEL_FREE",
+              "rate": "0"
+            }
+          }
         }
-      }
+      ]
     }
   },
   {
@@ -1632,13 +1653,17 @@
       "string.min_len"
     ],
     "json": {
-      "offer": {
-        "offerId": "offer-seed",
-        "pricing": {
-          "model": "PRICING_MODEL_FREE",
-          "rate": "0"
+      "items": [
+        {
+          "offer": {
+            "offerId": "offer-seed",
+            "pricing": {
+              "model": "PRICING_MODEL_FREE",
+              "rate": "0"
+            }
+          }
         }
-      }
+      ]
     }
   },
   {
@@ -1647,13 +1672,17 @@
     "valid": true,
     "json": {
       "idempotencyKey": "idem-tx",
-      "offer": {
-        "offerId": "offer-seed",
-        "pricing": {
-          "model": "PRICING_MODEL_FREE",
-          "rate": "0"
+      "items": [
+        {
+          "offer": {
+            "offerId": "offer-seed",
+            "pricing": {
+              "model": "PRICING_MODEL_FREE",
+              "rate": "0"
+            }
+          }
         }
-      }
+      ]
     }
   },
   {

conformance/corpus/crossfield.json

@@ -105,16 +105,5 @@
         "ai-train"
       ]
     }
-  },
-  {
-    "id": "TransactionRequest/cel/offer_xor_items",
-    "message": "TransactionRequest",
-    "valid": false,
-    "rules": [
-      "transaction_request.offer_xor_items"
-    ],
-    "json": {
-      "idempotencyKey": "idem-tx"
-    }
   }
 ]

conformance/corpusgen/main.go

@@ -77,12 +77,12 @@ func seeds() map[string]proto.Message {
 		"LicenseTerm":           &rampv1.LicenseTerm{Semantics: rampv1.TermSemantics_TERM_SEMANTICS_ENUMERATED, Pricing: pricing()},
 		"AcceptableRestriction": &rampv1.AcceptableRestriction{Axis: rampv1.RestrictionKind_RESTRICTION_KIND_FUNCTION, Values: []string{"ai-train"}},
 		"DisputeRequest":        &rampv1.DisputeRequest{IdempotencyKey: "idem-dr", Reason: rampv1.DisputeReason_DISPUTE_REASON_CONTENT_MISMATCH},
-		// Reflected-Offer execute contract (RAMP-103): Offer is the required
-		// sub-message of TransactionItem (auto-fill needs its seed), and
-		// TransactionRequest needs a valid single-mode baseline because its
-		// offer_xor_items message-CEL rejects the empty auto-fill baseline.
+		// Reflected-Offer execute contract (RAMP-103 / items-only 6afpc): Offer is
+		// the required sub-message of TransactionItem (auto-fill needs its seed),
+		// and TransactionRequest needs a valid 1-item items[] baseline because its
+		// items field is now repeated.min_items=1 (single-offer mode removed).
 		"Offer":              offer(),
-		"TransactionRequest": &rampv1.TransactionRequest{IdempotencyKey: "idem-tx", Offer: offer()},
+		"TransactionRequest": &rampv1.TransactionRequest{IdempotencyKey: "idem-tx", Items: []*rampv1.TransactionItem{{Offer: offer()}}},
 	}
 }
 
@@ -152,7 +152,7 @@ func main() {
 // verdict. This is kept SEPARATE from cases.json on purpose — cases.json is the
 // FIELD-level corpus the generated Pydantic/Zod clients are tested against today,
 // and those clients do not yet enforce cross-field CEL (the symmetric gap noted
-// in ramp-sdk-api.md). The SDK L1 validator (ramphelpers.Validate) is tested
+// in ramp-sdk-api.md). The SDK L1 validator (helpers.Validate) is tested
 // against THIS file, and a future TS/Python L1 that authors the cross-field rules
 // by hand consumes it as their oracle — without breaking the field-level parity.
 func writeCrossField(v protovalidate.Validator) {
@@ -191,9 +191,6 @@ func writeCrossField(v protovalidate.Validator) {
 				},
 			},
 			"license_term.one_restriction_per_kind"},
-		{"TransactionRequest/cel/offer_xor_items",
-			&rampv1.TransactionRequest{IdempotencyKey: "idem-tx"},
-			"transaction_request.offer_xor_items"},
 	}
 
 	var cases []Case

conformance/descriptor_invariants_test.go

@@ -78,7 +78,6 @@ var zeroAllowed = map[string]string{
 	"OfferGroup.absence_reason":                    "output — set only when a group yields no offers",
 	"OfferGroup.discovery_method":                  "output — informational; how the group was discovered",
 	"DiscoveryResponse.absence_reason":             "output — set only when the broker yields no offers; absent on success",
-	"TransactionResponse.delivery_method":          "output — populated on a completed transaction",
 	"TransactionResultItem.delivery_method":        "output — per-item delivery on a completed batch item",
 	"TransactionResultItem.denial_reason":          "output — set only on a denied batch item",
 	"TransactionResultItem.restriction_mismatches": "output — axes a denied batch item failed",

conformance/reachability_test.go

@@ -34,6 +34,7 @@ var outOfBandRoots = map[string]string{
 	"WBAFile":           "served at /.well-known/http-message-signatures-directory — the pure WBA JWK Set (identity keys + revocation_url)",
 	"ErrorDetail":       "the transport-error envelope; carries the seven typed failure reasons",
 	"KeyRevocationList": "served key-revocation document (thumbprint list), fetched out of band from WBAFile.revocation_url",
+	"AgentAcceptancePayload": "canonical signing structure for AgentAcceptance (RAMP-102 §1); never sent on the wire — the signer and verifier deterministically marshal it to derive byte-identical signed bytes",
 }
 
 // refFields visits the message/enum each of md's fields references (following the

conformance/validate_test.go

@@ -190,9 +190,9 @@ func TestIdempotencyKeyRequired(t *testing.T) {
 
 func idempotencyCases() []validationCase {
 	return []validationCase{
-		{"transaction empty key rejected", &rampv1.TransactionRequest{IdempotencyKey: ""}, false, "string.min_len"},
-		{"transaction key ok", &rampv1.TransactionRequest{IdempotencyKey: "idem-tx-1", Offer: &rampv1.Offer{OfferId: "of_1", Pricing: freePricing()}}, true, ""},
-		{"transaction neither offer nor items rejected", &rampv1.TransactionRequest{IdempotencyKey: "idem-tx-xor"}, false, "transaction_request.offer_xor_items"},
+		{"transaction empty key rejected", &rampv1.TransactionRequest{IdempotencyKey: "", Items: []*rampv1.TransactionItem{{Offer: &rampv1.Offer{OfferId: "of_1", Pricing: freePricing()}}}}, false, "string.min_len"},
+		{"transaction key ok", &rampv1.TransactionRequest{IdempotencyKey: "idem-tx-1", Items: []*rampv1.TransactionItem{{Offer: &rampv1.Offer{OfferId: "of_1", Pricing: freePricing()}}}}, true, ""},
+		{"transaction empty items rejected", &rampv1.TransactionRequest{IdempotencyKey: "idem-tx-empty"}, false, "repeated.min_items"},
 		{"usage report empty key rejected", &rampv1.UsageReport{IdempotencyKey: ""}, false, "string.min_len"},
 		{"usage report key ok", &rampv1.UsageReport{IdempotencyKey: "idem-ur-1"}, true, ""},
 		{"dispute empty key rejected", &rampv1.DisputeRequest{IdempotencyKey: "", Reason: rampv1.DisputeReason_DISPUTE_REASON_CONTENT_MISMATCH}, false, "string.min_len"},
@@ -260,6 +260,7 @@ var standardRuleIDs = map[string]bool{
 	"string.pattern":     true,
 	"required":           true,
 	"repeated.max_items": true,
+	"repeated.min_items": true,
 	"int64.gte":          true,
 	"string.min_len":     true,
 	"enum.not_in":        true,