fix(compliance): correct creative storyboard capability assertions

.changeset/fix-creative-storyboard-capability-assertions.md

@@ -0,0 +1,9 @@
+---
+"adcontextprotocol": patch
+---
+
+Fix false failures in creative compliance storyboards (canonical_supported_formats, evaluator_auth).
+
+`canonical_supported_formats`: removes the hardcoded `capability_id: "training_image_generation"` assertion (capability_id is agent-local; any valid value must pass) and the `field_absent` check on `supported_formats[1]` (agents may advertise multiple canonical formats). Fixes `context_outputs` field name from `key:` to `name:`.
+
+`evaluator_auth`: adds `requires_capability` guards to all five optional phases so agents that correctly declare `creative.supports_evaluator: false` receive `not_applicable` instead of failing the evaluator track. Guards evaluate against the raw capabilities response, bypassing a runner-side boolean-false accumulator bug. Fixes `context_outputs` field name from `key:` to `name:`.

static/compliance/source/protocols/creative/scenarios/canonical_supported_formats.yaml

@@ -1,5 +1,5 @@
 id: creative/canonical_supported_formats
-version: "1.0.0"
+version: "1.0.1"
 title: "Creative canonical supported formats"
 category: creative
 summary: "Verifies the 3.1 creative-agent canonical path: targetable supported_formats capability IDs, build_creative routing, and unsupported target rejection."
@@ -69,18 +69,17 @@ phases:
           context:
             correlation_id: "creative_canonical_supported_formats--get_capabilities"
         context_outputs:
-          - key: "image_build_capability_id"
+          - name: "image_build_capability_id"
             path: "creative.supported_formats[0].capability_id"
         validations:
           - check: response_schema
             description: "Response matches get-adcp-capabilities-response.json schema"
           - check: field_present
             path: "creative.supported_formats"
             description: "Creative canonical supported formats are advertised"
-          - check: field_value
+          - check: field_present
             path: "creative.supported_formats[0].capability_id"
-            value: "training_image_generation"
-            description: "The image build path has a stable local capability_id"
+            description: "The advertised canonical format entry carries a capability_id for build routing"
           - check: field_value
             path: "creative.supported_formats[0].format.format_kind"
             value: "image"
@@ -91,9 +90,6 @@ phases:
           - check: field_absent
             path: "creative.supported_formats[0].format.format_option_id"
             description: "Creative-agent build routing uses capability_id, not product format_option_id"
-          - check: field_absent
-            path: "creative.supported_formats[1].capability_id"
-            description: "Storyboard fixture only advertises implemented canonical build paths"
           - check: field_value
             path: "context.correlation_id"
             value: "creative_canonical_supported_formats--get_capabilities"

static/compliance/source/protocols/creative/scenarios/evaluator_auth.yaml

@@ -1,5 +1,5 @@
 id: creative/evaluator_auth
-version: "1.0.0"
+version: "1.0.1"
 title: "Creative evaluator authentication boundary"
 category: creative
 summary: "Verifies that build_creative evaluator pointers use the verifier allowlist, keep credentials out of payloads, and invoke accepted evaluator agents through get_creative_features."
@@ -94,11 +94,11 @@ phases:
           context:
             correlation_id: "creative_evaluator_auth--get_capabilities"
         context_outputs:
-          - key: "supports_evaluator"
+          - name: "supports_evaluator"
             path: "creative.supports_evaluator"
-          - key: "build_capability_id"
+          - name: "build_capability_id"
             path: "creative.supported_formats[0].capability_id"
-          - key: "creative_feature_id"
+          - name: "creative_feature_id"
             path: "governance.creative_features[0].feature_id"
         validations:
           - check: response_schema
@@ -111,6 +111,9 @@ phases:
   - id: evaluator_capability_contract
     title: "Confirm experimental feature declaration"
     optional: true
+    requires_capability:
+      path: "creative.supports_evaluator"
+      equals: true
     skip_if: "context.supports_evaluator != true"
     narrative: |
       Because evaluator support is experimental, agents that set
@@ -162,6 +165,9 @@ phases:
   - id: reject_off_list_evaluator
     title: "Reject an off-list evaluator URL"
     optional: true
+    requires_capability:
+      path: "creative.supports_evaluator"
+      equals: true
     skip_if: "context.supports_evaluator != true || !context.build_capability_id || !context.creative_feature_id"
     narrative: |
       The buyer supplies a well-formed external evaluator URL that is not in the
@@ -219,6 +225,9 @@ phases:
   - id: reject_off_list_feature_agent
     title: "Reject an off-list feature_agent URL"
     optional: true
+    requires_capability:
+      path: "creative.supports_evaluator"
+      equals: true
     skip_if: "context.supports_evaluator != true || !context.build_capability_id || !context.creative_feature_id"
     narrative: |
       The buyer supplies a well-formed `feature_agent.agent_url` alongside an
@@ -281,6 +290,9 @@ phases:
   - id: payload_credentials_advisory
     title: "Keep evaluator credentials out of the payload"
     optional: true
+    requires_capability:
+      path: "creative.supports_evaluator"
+      equals: true
     skip_if: "context.supports_evaluator != true || !context.build_capability_id || !context.creative_feature_id"
     narrative: |
       The buyer attempts to pass an evaluator API key inside the evaluator
@@ -356,6 +368,9 @@ phases:
   - id: accepted_evaluator_invocation
     title: "Invoke an accepted evaluator"
     optional: true
+    requires_capability:
+      path: "creative.supports_evaluator"
+      equals: true
     skip_if: "context.supports_evaluator != true || !context.build_capability_id || !context.creative_feature_id"
     narrative: |
       The buyer supplies an accepted external evaluator URL. The creative agent
@@ -433,6 +448,9 @@ phases:
   - id: accepted_evaluator_unavailable_degrades
     title: "Degrade when an accepted evaluator is unavailable"
     optional: true
+    requires_capability:
+      path: "creative.supports_evaluator"
+      equals: true
     skip_if: "context.supports_evaluator != true || !context.build_capability_id || !context.creative_feature_id"
     narrative: |
       An accepted evaluator can be unreachable or can reject the producing