adcontextprotocol · BaiyuScope3 · Jan 9, 2026 · Jan 8, 2026 · Jan 8, 2026 · Jan 8, 2026
diff --git a/Makefile b/Makefile
@@ -47,7 +47,7 @@ regenerate-schemas: ## Download latest schemas and regenerate models
 	@echo "Fixing schema references..."
 	$(PYTHON) scripts/fix_schema_refs.py
 	@echo "Generating Pydantic models..."
-	$(PYTHON) scripts/generate_models_simple.py
+	$(PYTHON) scripts/generate_types.py
 	@echo "✓ Schemas regenerated successfully"
 
 validate-generated: ## Validate generated code (syntax and imports)
@@ -99,7 +99,7 @@ check-schema-drift: ## Check if schemas are out of sync with upstream
 	@echo "Checking for schema drift..."
 	@$(PYTHON) scripts/sync_schemas.py
 	@$(PYTHON) scripts/fix_schema_refs.py
-	@$(PYTHON) scripts/generate_models_simple.py
+	@$(PYTHON) scripts/generate_types.py
 	@if git diff --exit-code src/adcp/types/generated.py schemas/cache/; then \
 		echo "✓ Schemas are up-to-date"; \
 	else \

diff --git a/schemas/cache/.hashes.json b/schemas/cache/.hashes.json
diff --git a/schemas/cache/adagents.json b/schemas/cache/adagents.json
@@ -3,12 +3,12 @@
   "description": "Declaration of authorized sales agents for advertising inventory. Hosted at /.well-known/adagents.json on publisher domains. Can either contain the full structure inline or reference an authoritative URL.",
   "examples": [
     {
-      "$schema": "/schemas/latest/adagents.json",
+      "$schema": "/schemas/2.6.0/adagents.json",
       "authoritative_location": "https://cdn.example.com/adagents/v2/adagents.json",
       "last_updated": "2025-01-15T10:00:00Z"
     },
     {
-      "$schema": "/schemas/latest/adagents.json",
+      "$schema": "/schemas/2.6.0/adagents.json",
       "authorized_agents": [
         {
           "authorization_type": "property_tags",
@@ -41,7 +41,7 @@
       }
     },
     {
-      "$schema": "/schemas/latest/adagents.json",
+      "$schema": "/schemas/2.6.0/adagents.json",
       "authorized_agents": [
         {
           "authorization_type": "property_tags",
@@ -135,7 +135,7 @@
       }
     },
     {
-      "$schema": "/schemas/latest/adagents.json",
+      "$schema": "/schemas/2.6.0/adagents.json",
       "authorized_agents": [
         {
           "authorization_type": "property_tags",
@@ -174,7 +174,7 @@
       }
     },
     {
-      "$schema": "/schemas/latest/adagents.json",
+      "$schema": "/schemas/2.6.0/adagents.json",
       "authorized_agents": [
         {
           "authorization_type": "publisher_properties",
@@ -222,7 +222,7 @@
   ],
   "oneOf": [
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "description": "URL reference variant - points to the authoritative location of the adagents.json file",
       "properties": {
         "$schema": {
@@ -247,7 +247,7 @@
       "type": "object"
     },
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "description": "Inline structure variant - contains full agent authorization data",
       "properties": {
         "$schema": {
@@ -259,7 +259,7 @@
           "items": {
             "oneOf": [
               {
-                "additionalProperties": false,
+                "additionalProperties": true,
                 "properties": {
                   "authorization_type": {
                     "const": "property_ids",
@@ -295,7 +295,7 @@
                 "type": "object"
               },
               {
-                "additionalProperties": false,
+                "additionalProperties": true,
                 "properties": {
                   "authorization_type": {
                     "const": "property_tags",
@@ -331,7 +331,7 @@
                 "type": "object"
               },
               {
-                "additionalProperties": false,
+                "additionalProperties": true,
                 "properties": {
                   "authorization_type": {
                     "const": "inline_properties",
@@ -367,7 +367,7 @@
                 "type": "object"
               },
               {
-                "additionalProperties": false,
+                "additionalProperties": true,
                 "properties": {
                   "authorization_type": {
                     "const": "publisher_properties",
@@ -408,7 +408,7 @@
           "type": "array"
         },
         "contact": {
-          "additionalProperties": false,
+          "additionalProperties": true,
           "description": "Contact information for the entity managing this adagents.json file (may be publisher or third-party operator)",
           "properties": {
             "domain": {
@@ -462,7 +462,7 @@
         },
         "tags": {
           "additionalProperties": {
-            "additionalProperties": false,
+            "additionalProperties": true,
             "properties": {
               "description": {
                 "description": "Description of what this tag represents",

diff --git a/schemas/cache/core/activation-key.json b/schemas/cache/core/activation-key.json
@@ -3,7 +3,7 @@
   "description": "Universal identifier for using a signal on a destination platform. Can be either a segment ID or a key-value pair depending on the platform's targeting mechanism.",
   "oneOf": [
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "properties": {
         "segment_id": {
           "description": "The platform-specific segment identifier to use in campaign targeting",
@@ -21,7 +21,7 @@
       ]
     },
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "properties": {
         "key": {
           "description": "The targeting parameter key",

diff --git a/schemas/cache/core/assets/audio-asset.json b/schemas/cache/core/assets/audio-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Audio asset with URL and specifications",
   "properties": {
     "bitrate_kbps": {

diff --git a/schemas/cache/core/assets/css-asset.json b/schemas/cache/core/assets/css-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "CSS stylesheet asset",
   "properties": {
     "content": {

diff --git a/schemas/cache/core/assets/daast-asset.json b/schemas/cache/core/assets/daast-asset.json
@@ -3,7 +3,7 @@
   "description": "DAAST (Digital Audio Ad Serving Template) tag for third-party audio ad serving",
   "oneOf": [
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "properties": {
         "companion_ads": {
           "description": "Whether companion display ads are included",
@@ -43,7 +43,7 @@
       "type": "object"
     },
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "properties": {
         "companion_ads": {
           "description": "Whether companion display ads are included",

diff --git a/schemas/cache/core/assets/html-asset.json b/schemas/cache/core/assets/html-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "HTML content asset",
   "properties": {
     "content": {

diff --git a/schemas/cache/core/assets/image-asset.json b/schemas/cache/core/assets/image-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Image asset with URL and dimensions",
   "properties": {
     "alt_text": {

diff --git a/schemas/cache/core/assets/javascript-asset.json b/schemas/cache/core/assets/javascript-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "JavaScript code asset",
   "properties": {
     "content": {

diff --git a/schemas/cache/core/assets/text-asset.json b/schemas/cache/core/assets/text-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Text content asset",
   "properties": {
     "content": {

diff --git a/schemas/cache/core/assets/url-asset.json b/schemas/cache/core/assets/url-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "URL reference asset",
   "properties": {
     "description": {

diff --git a/schemas/cache/core/assets/vast-asset.json b/schemas/cache/core/assets/vast-asset.json
@@ -3,7 +3,7 @@
   "description": "VAST (Video Ad Serving Template) tag for third-party video ad serving",
   "oneOf": [
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "properties": {
         "delivery_type": {
           "const": "url",
@@ -43,7 +43,7 @@
       "type": "object"
     },
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "properties": {
         "content": {
           "description": "Inline VAST XML content",

diff --git a/schemas/cache/core/assets/video-asset.json b/schemas/cache/core/assets/video-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Video asset with URL and specifications",
   "properties": {
     "bitrate_kbps": {

diff --git a/schemas/cache/core/assets/webhook-asset.json b/schemas/cache/core/assets/webhook-asset.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Webhook for server-side dynamic content rendering (DCO)",
   "properties": {
     "method": {

diff --git a/schemas/cache/core/brand-manifest.json b/schemas/cache/core/brand-manifest.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Standardized brand information manifest for creative generation and media buying. Enables low-friction creative workflows by providing brand context that can be easily cached and shared across requests.",
   "examples": [
     {
@@ -117,7 +117,7 @@
     "assets": {
       "description": "Brand asset library with explicit assets and tags. Assets are referenced inline with URLs pointing to CDN-hosted files.",
       "items": {
-        "additionalProperties": false,
+        "additionalProperties": true,
         "properties": {
           "asset_id": {
             "description": "Unique identifier for this asset",
@@ -336,7 +336,7 @@
       "type": "string"
     },
     "product_catalog": {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "description": "Product catalog information for e-commerce advertisers. Enables SKU-level creative generation and product selection.",
       "properties": {
         "categories": {

diff --git a/schemas/cache/core/creative-asset.json b/schemas/cache/core/creative-asset.json
@@ -1,14 +1,14 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Creative asset for upload to library - supports static assets, generative formats, and third-party snippets",
   "properties": {
     "approved": {
       "description": "For generative creatives: set to true to approve and finalize, false to request regeneration with updated assets/message. Omit for non-generative creatives.",
       "type": "boolean"
     },
     "assets": {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "description": "Assets required by the format, keyed by asset_role",
       "patternProperties": {
         "^[a-zA-Z0-9_-]+$": {
@@ -62,7 +62,7 @@
     "inputs": {
       "description": "Preview contexts for generative formats - defines what scenarios to generate previews for",
       "items": {
-        "additionalProperties": false,
+        "additionalProperties": true,
         "properties": {
           "context_description": {
             "description": "Natural language description of the context for AI-generated content",

diff --git a/schemas/cache/core/creative-assignment.json b/schemas/cache/core/creative-assignment.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Assignment of a creative asset to a package with optional placement targeting. Used in create_media_buy and update_media_buy requests. Note: sync_creatives does not support placement_ids - use create/update_media_buy for placement-level targeting.",
   "properties": {
     "creative_id": {

diff --git a/schemas/cache/core/creative-filters.json b/schemas/cache/core/creative-filters.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Filter criteria for querying creative assets from the centralized library",
   "properties": {
     "assigned_to_package": {

diff --git a/schemas/cache/core/creative-manifest.json b/schemas/cache/core/creative-manifest.json
@@ -1,10 +1,10 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Complete specification of a creative with all assets needed for rendering in a specific format. Each asset is typed according to its asset_role from the format specification and contains the actual content/URL that fulfills the format requirements.",
   "properties": {
     "assets": {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "description": "Map of asset IDs to actual asset content. Each key MUST match an asset_id from the format's assets_required array (e.g., 'banner_image', 'clickthrough_url', 'video_file', 'vast_tag'). The asset_id is the technical identifier used to match assets to format requirements.\n\nIMPORTANT: Creative manifest validation MUST be performed in the context of the format specification. The format defines what type each asset_id should be, which eliminates any validation ambiguity.",
       "patternProperties": {
         "^[a-z0-9_]+$": {

diff --git a/schemas/cache/core/creative-policy.json b/schemas/cache/core/creative-policy.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "description": "Creative requirements and restrictions for a product",
   "properties": {
     "co_branding": {

diff --git a/schemas/cache/core/delivery-metrics.json b/schemas/cache/core/delivery-metrics.json
@@ -31,7 +31,7 @@
       "type": "number"
     },
     "dooh_metrics": {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "description": "DOOH-specific metrics (only included for DOOH campaigns)",
       "properties": {
         "calculation_notes": {
@@ -62,7 +62,7 @@
         "venue_breakdown": {
           "description": "Per-venue performance breakdown",
           "items": {
-            "additionalProperties": false,
+            "additionalProperties": true,
             "properties": {
               "impressions": {
                 "description": "Impressions delivered at this venue",

diff --git a/schemas/cache/core/deployment.json b/schemas/cache/core/deployment.json
@@ -3,7 +3,7 @@
   "description": "A signal deployment to a specific deployment target with activation status and key",
   "oneOf": [
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "properties": {
         "account": {
           "description": "Account identifier if applicable",
@@ -45,7 +45,7 @@
       "type": "object"
     },
     {
-      "additionalProperties": false,
+      "additionalProperties": true,
       "properties": {
         "account": {
           "description": "Account identifier if applicable",