a2ui-project · yjbanov · Jun 10, 2026
diff --git a/..._sdks/kotlin/src/main/kotlin/com/google/a2ui/adk/a2a_extension/SendA2uiToClientToolset.kt b/..._sdks/kotlin/src/main/kotlin/com/google/a2ui/adk/a2a_extension/SendA2uiToClientToolset.kt
@@ -38,7 +38,7 @@ typealias A2uiCatalogProvider = (ReadonlyContext) -> A2uiCatalog
 typealias A2uiExamplesProvider = (ReadonlyContext) -> String
 
 /**
- * A toolset that furnishes ADK agents with A2UI (Agent-to-UI) functional tools.
+ * A toolset that furnishes ADK agents with A2UI functional tools.
  *
  * This allows an agent to explicitly decide to render UI components based on the configured schemas
  * and current catalog capabilities. Features dynamic enablement, pulling localized components on

diff --git a/docs/index.md b/docs/index.md
@@ -15,7 +15,7 @@ hide:
 # A Protocol for Agent-Driven Interfaces
 
 <p style="font-size: 1.2rem; max-width: 800px; margin: 0 auto 1rem auto; opacity: 0.9; line-height: 1.6;">
-A2UI enables AI agents to generate rich, interactive user interfaces that render natively across web, mobile, and desktop—without executing arbitrary code.
+A2UI (Agent to User Interface) enables AI agents to generate rich, interactive user interfaces that render natively across web, mobile, and desktop—without executing arbitrary code.
 </p>
 
 </div>

diff --git a/docs/introduction/what-is-a2ui.md b/docs/introduction/what-is-a2ui.md
@@ -1,6 +1,6 @@
 # What is A2UI?
 
-**A2UI (Agent to UI) is a declarative UI protocol for agent-driven interfaces.** AI agents generate rich, interactive UIs that render natively across platforms (web, mobile, desktop) without executing arbitrary code.
+**A2UI (Agent to User Interface) is a declarative UI protocol for agent-driven interfaces.** AI agents generate rich, interactive UIs that render natively across platforms (web, mobile, desktop) without executing arbitrary code.
 
 ## The Problem
 

diff --git a/renderers/web_core/src/v0_8/schema/server-to-client.ts b/renderers/web_core/src/v0_8/schema/server-to-client.ts
@@ -260,7 +260,7 @@ export const A2uiMessageSchema = z
     }
   })
   .describe(
-    "Describes a JSON payload for an A2UI (Agent to UI) message, which is used to dynamically construct and update user interfaces. A message MUST contain exactly ONE of the action properties: 'beginRendering', 'surfaceUpdate', 'dataModelUpdate', or 'deleteSurface'.",
+    "Describes a JSON payload for an A2UI message, which is used to dynamically construct and update user interfaces. A message MUST contain exactly ONE of the action properties: 'beginRendering', 'surfaceUpdate', 'dataModelUpdate', or 'deleteSurface'.",
   );
 
 export type A2uiMessage = z.infer<typeof A2uiMessageSchema>;
diff --git a/specification/v0_8/docs/a2ui_extension_specification.md b/specification/v0_8/docs/a2ui_extension_specification.md
@@ -1,8 +1,8 @@
-# A2UI (Agent-to-Agent UI) Extension spec
+# A2UI Extension spec
 
 ## Overview
 
-This extension implements the A2UI (Agent-to-Agent UI) spec, a format for agents to send streaming, interactive user interfaces to clients.
+This extension implements the A2UI spec, a format for agents to send streaming, interactive user interfaces to clients.
 
 ## Extension URI
 

diff --git a/specification/v0_8/docs/a2ui_protocol.md b/specification/v0_8/docs/a2ui_protocol.md
@@ -3,7 +3,7 @@
 <div style="text-align: center;">
   <div class="centered-logo-text-group">
     <img src="../../../assets/A2UI_dark.svg" alt="A2UI Protocol Logo" width="100">
-    <h1>A2UI (Agent to UI) Protocol</h1>
+    <h1>A2UI Protocol</h1>
   </div>
 </div>
 
@@ -14,7 +14,7 @@ Updated: Nov 12, 2025
 
 ## Design requirements
 
-The A2UI (Agent to UI) protocol should be a system where an LLM can stream a platform-agnostic, abstract UI definition to a client, which then renders it progressively using a native widget set. Every major design choice is traced back to the core challenges of LLM generation, perceived performance, and platform independence.
+The A2UI protocol should be a system where an LLM can stream a platform-agnostic, abstract UI definition to a client, which then renders it progressively using a native widget set. Every major design choice is traced back to the core challenges of LLM generation, perceived performance, and platform independence.
 
 ### Requirement: The protocol must be easily generated by a Transformer Large Language Model (LLM)
 

diff --git a/specification/v0_8/json/client_to_server.json b/specification/v0_8/json/client_to_server.json
@@ -1,5 +1,5 @@
 {
-  "title": "A2UI (Agent to UI) Client-to-Server Event Schema",
+  "title": "A2UI Client-to-Server Event Schema",
   "description": "Describes a JSON payload for a client-to-server event message.",
   "type": "object",
   "minProperties": 1,

diff --git a/specification/v0_8/json/server_to_client.json b/specification/v0_8/json/server_to_client.json
@@ -1,6 +1,6 @@
 {
   "title": "A2UI Message Schema",
-  "description": "Describes a JSON payload for an A2UI (Agent to UI) message, which is used to dynamically construct and update user interfaces. A message MUST contain exactly ONE of the action properties: 'beginRendering', 'surfaceUpdate', 'dataModelUpdate', or 'deleteSurface'.",
+  "description": "Describes a JSON payload for an A2UI message, which is used to dynamically construct and update user interfaces. A message MUST contain exactly ONE of the action properties: 'beginRendering', 'surfaceUpdate', 'dataModelUpdate', or 'deleteSurface'.",
   "type": "object",
   "additionalProperties": false,
   "properties": {

diff --git a/specification/v0_8/json/server_to_client_with_standard_catalog.json b/specification/v0_8/json/server_to_client_with_standard_catalog.json
@@ -1,6 +1,6 @@
 {
   "title": "A2UI Message Schema",
-  "description": "Describes a JSON payload for an A2UI (Agent to UI) message, which is used to dynamically construct and update user interfaces. A message MUST contain exactly ONE of the action properties: 'beginRendering', 'surfaceUpdate', 'dataModelUpdate', or 'deleteSurface'.",
+  "description": "Describes a JSON payload for an A2UI message, which is used to dynamically construct and update user interfaces. A message MUST contain exactly ONE of the action properties: 'beginRendering', 'surfaceUpdate', 'dataModelUpdate', or 'deleteSurface'.",
   "type": "object",
   "additionalProperties": false,
   "properties": {

diff --git a/specification/v0_9/docs/a2ui_extension_specification.md b/specification/v0_9/docs/a2ui_extension_specification.md
@@ -1,8 +1,8 @@
-# A2UI (Agent-to-Agent UI) Extension spec v0.9
+# A2UI Extension spec v0.9
 
 ## Overview
 
-This extension implements the A2UI (Agent-to-Agent UI) spec v0.9, a format for agents to send streaming, interactive user interfaces to clients.
+This extension implements the A2UI spec v0.9, a format for agents to send streaming, interactive user interfaces to clients.
 
 ## Extension URI
 

diff --git a/specification/v0_9/docs/a2ui_protocol.md b/specification/v0_9/docs/a2ui_protocol.md
@@ -4,7 +4,7 @@
 <div style="text-align: center;">
   <div class="centered-logo-text-group">
     <img src="../../../assets/A2UI_dark.svg" alt="A2UI Protocol Logo" width="100">
-    <h1>A2UI (Agent to UI) Protocol v0.9</h1>
+    <h1>A2UI Protocol v0.9</h1>
   </div>
 </div>
 

diff --git a/specification/v0_9/json/client_to_server.json b/specification/v0_9/json/client_to_server.json
@@ -1,5 +1,5 @@
 {
-  "title": "A2UI (Agent to UI) Client-to-Server Event Schema",
+  "title": "A2UI Client-to-Server Event Schema",
   "description": "Describes a JSON payload for a client-to-server event message.",
   "type": "object",
   "minProperties": 2,

diff --git a/specification/v0_9/json/server_to_client.json b/specification/v0_9/json/server_to_client.json
@@ -2,7 +2,7 @@
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "$id": "https://a2ui.org/specification/v0_9/server_to_client.json",
   "title": "A2UI Message Schema",
-  "description": "Describes a JSON payload for an A2UI (Agent to UI) message, which is used to dynamically construct and update user interfaces.",
+  "description": "Describes a JSON payload for an A2UI message, which is used to dynamically construct and update user interfaces.",
   "type": "object",
   "oneOf": [
     {"$ref": "#/$defs/CreateSurfaceMessage"},

diff --git a/specification/v0_9_1/docs/a2ui_extension_specification.md b/specification/v0_9_1/docs/a2ui_extension_specification.md
@@ -1,8 +1,8 @@
-# A2UI (Agent-to-Agent UI) Extension spec v0.9.1
+# A2UI Extension spec v0.9.1
 
 ## Overview
 
-This extension implements the A2UI (Agent-to-Agent UI) spec v0.9.1, a format for agents to send streaming, interactive user interfaces to clients.
+This extension implements the A2UI spec v0.9.1, a format for agents to send streaming, interactive user interfaces to clients.
 
 ## Extension URI
 

diff --git a/specification/v0_9_1/docs/a2ui_protocol.md b/specification/v0_9_1/docs/a2ui_protocol.md
@@ -4,7 +4,7 @@
 <div style="text-align: center;">
   <div class="centered-logo-text-group">
     <img src="../../../assets/A2UI_dark.svg" alt="A2UI Protocol Logo" width="100">
-    <h1>A2UI (Agent to UI) Protocol v0.9</h1>
+    <h1>A2UI Protocol v0.9.1</h1>
   </div>
 </div>
 

diff --git a/specification/v0_9_1/json/client_to_server.json b/specification/v0_9_1/json/client_to_server.json
@@ -1,5 +1,5 @@
 {
-  "title": "A2UI (Agent to UI) Client-to-Server Event Schema",
+  "title": "A2UI Client-to-Server Event Schema",
   "description": "Describes a JSON payload for a client-to-server event message.",
   "type": "object",
   "minProperties": 2,

diff --git a/specification/v0_9_1/json/server_to_client.json b/specification/v0_9_1/json/server_to_client.json
@@ -2,7 +2,7 @@
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "$id": "https://a2ui.org/specification/v0_9/server_to_client.json",
   "title": "A2UI Message Schema",
-  "description": "Describes a JSON payload for an A2UI (Agent to UI) message, which is used to dynamically construct and update user interfaces.",
+  "description": "Describes a JSON payload for an A2UI message, which is used to dynamically construct and update user interfaces.",
   "type": "object",
   "oneOf": [
     {"$ref": "#/$defs/CreateSurfaceMessage"},

diff --git a/specification/v1_0/docs/a2ui_extension_specification.md b/specification/v1_0/docs/a2ui_extension_specification.md
@@ -1,8 +1,8 @@
-# A2UI (Agent-to-Agent UI) Extension spec v1.0
+# A2UI Extension spec v1.0
 
 ## Overview
 
-This extension implements the A2UI (Agent-to-Agent UI) spec v1.0, a format for agents to send streaming, interactive user interfaces to clients.
+This extension implements the A2UI spec v1.0, a format for agents to send streaming, interactive user interfaces to clients.
 
 ## Extension URI
 

diff --git a/specification/v1_0/docs/a2ui_protocol.md b/specification/v1_0/docs/a2ui_protocol.md
@@ -4,7 +4,7 @@
 <div style="text-align: center;">
   <div class="centered-logo-text-group">
     <img src="../../../assets/A2UI_dark.svg" alt="A2UI Protocol Logo" width="100">
-    <h1>A2UI (Agent to UI) Protocol v1.0</h1>
+    <h1>A2UI Protocol v1.0</h1>
   </div>
 </div>
 

diff --git a/specification/v1_0/json/client_to_server.json b/specification/v1_0/json/client_to_server.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "$id": "https://a2ui.org/specification/v1_0/client_to_server.json",
-  "title": "A2UI (Agent to UI) Client-to-Server Event Schema",
+  "title": "A2UI Client-to-Server Event Schema",
   "description": "Describes a JSON payload for a client-to-server event message.",
   "type": "object",
   "minProperties": 2,

diff --git a/specification/v1_0/json/server_to_client.json b/specification/v1_0/json/server_to_client.json
@@ -2,7 +2,7 @@
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "$id": "https://a2ui.org/specification/v1_0/server_to_client.json",
   "title": "A2UI Message Schema",
-  "description": "Describes a JSON payload for an A2UI (Agent to UI) message, which is used to dynamically construct and update user interfaces.",
+  "description": "Describes a JSON payload for an A2UI message, which is used to dynamically construct and update user interfaces.",
   "type": "object",
   "oneOf": [
     {"$ref": "#/$defs/CreateSurfaceMessage"},