Restructure the agent_sdks folder (#711)

The code is reorganized with the following structure
```
agent_sdks/python
- src/a2ui
  - a2a.py
  - basic_catalog
    - provider.py
  - core
    - schema
      - manager.py
      - validation.py
      - payload_fixer.py
      - ...
    - template
      - ...
    - inference_stategy.py
  - adk
    - a2a_extension
      - send_a2ui_to_client_toolset.py
```

Tested:
- [x] All individual sample ADKs are working with connected client.
- [x] The orchestrator sample is also working with all sub-agents.

Author: nan-yu

.gemini/GEMINI.md

@@ -20,8 +20,8 @@ The A2UI repository is organized into several key directories:
         -   `lit/`: Clients using Lit and Vite (e.g., `contact`, `shell`).
         -   `angular/`: Clients using Angular.
     -   `mcp/`: MCP server samples (e.g., `flight_booking`).
--   `a2a_agents/`: Contains source code for A2A extension integrations.
-    -   `python/a2ui_agent/`: Python implementation of the A2UI agent library.
+-   `agent_sdks/`: Contains source code for Agent integrations.
+    -   `python/`: Python implementation of the A2UI agent library.
     -   `java/`: Java implementation of the A2UI agent library.
 -   `renderers/`: Contains renderer libraries.
     -   `lit/`: The shared Lit renderer library used by the Lit clients.

.github/CODEOWNERS

@@ -15,7 +15,7 @@
 * @dmandar @gspencergoog @jacobsimionato @nan-yu @ditman @zeroasterisk @yjbanov
 
 # Agents
-/a2a_agents/ @nan-yu @dmandar @gspencergoog
+/agent_sdks/ @nan-yu @dmandar @gspencergoog
 
 # Renderers
 /renderers/angular/ @ditman @ava-cassiopeia  @crisbeto

.github/workflows/java_build_and_test.yml

@@ -19,11 +19,11 @@ on:
     branches:
       - main
     paths:
-      - 'a2a_agents/java/**'
+      - 'agent_sdks/java/**'
       - 'specification/**/json/**'
   pull_request:
     paths:
-      - 'a2a_agents/java/**'
+      - 'agent_sdks/java/**'
       - 'specification/**/json/**'
 
 jobs:
@@ -42,9 +42,9 @@ jobs:
           distribution: 'temurin'
 
       - name: Build with Maven
-        working-directory: a2a_agents/java
+        working-directory: agent_sdks/java
         run: mvn clean install
 
       - name: Run Tests
-        working-directory: a2a_agents/java
+        working-directory: agent_sdks/java
         run: mvn test

…ows/python_a2ui_agent_build_and_test.yml …lows/python_agent_sdk_build_and_test.yml.github/workflows/python_a2ui_agent_build_and_test.yml renamed to .github/workflows/python_agent_sdk_build_and_test.yml .github/workflows/python_a2ui_agent_build_and_test.yml renamed to .github/workflows/python_agent_sdk_build_and_test.yml

@@ -19,11 +19,11 @@ on:
     branches:
       - '*'
     paths:
-      - 'a2a_agents/python/a2ui_agent/**'
+      - 'agent_sdks/python/**'
       - 'specification/**/json/**'
   pull_request:
     paths:
-      - 'a2a_agents/python/a2ui_agent/**'
+      - 'agent_sdks/python/**'
       - 'specification/**/json/**'
 
 jobs:
@@ -45,17 +45,17 @@ jobs:
           pip install uv
 
       - name: Check Formatting
-        working-directory: a2a_agents/python/a2ui_agent
+        working-directory: agent_sdks/python
         run: uv run pyink --check .
 
       - name: Run unit tests
-        working-directory: a2a_agents/python/a2ui_agent
+        working-directory: agent_sdks/python
         run: uv run --with pytest pytest tests/
 
       - name: Build the python SDK
-        working-directory: a2a_agents/python/a2ui_agent
+        working-directory: agent_sdks/python
         run: uv build .
 
       - name: Run validation scripts on assets packing
-        working-directory: a2a_agents/python/a2ui_agent
+        working-directory: agent_sdks/python
         run: uv run python tests/integration/verify_load_real.py

.github/workflows/python_samples_build.yml

@@ -20,12 +20,12 @@ on:
       - main
     paths:
       - 'samples/agent/adk/**'
-      - 'a2a_agents/python/a2ui_agent/**'
+      - 'agent_sdks/python/**'
       - 'specification/**/json/**'
   pull_request:
     paths:
       - 'samples/agent/adk/**'
-      - 'a2a_agents/python/a2ui_agent/**'
+      - 'agent_sdks/python/**'
       - 'specification/**/json/**'
 
 jobs:

a2a_agents/python/a2ui_agent/src/a2ui/extension/a2ui_schema_utils.py

@@ -1,10 +1,10 @@
 # A2A Agent Development Guide
 
-This guide explains how to build AI agents that generate A2UI interfaces using the `a2ui_agent` SDK. The SDK simplifies schema management, prompt engineering, and message validation for A2A (Agent-to-Agent/Agent-to-Client) communication.
+This guide explains how to build AI agents that generate A2UI interfaces using `agent_sdk`. The SDK simplifies schema management, prompt engineering, and message validation for A2A (Agent-to-Agent/Agent-to-Client) communication.
 
 ## Core Concepts
 
-The `a2ui_agent` SDK revolves around three main classes:
+The `agent_sdk` revolves around three main classes:
 
 *   **`CatalogConfig`**: Defines the metadata for a component catalog (name, schema path, examples path).
 *   **`A2uiCatalog`**: Represents a processed catalog, providing methods for validation and LLM instruction rendering.
@@ -17,9 +17,9 @@ The `a2ui_agent` SDK revolves around three main classes:
 The first step in any A2UI-enabled agent is initializing the `A2uiSchemaManager`.
 
 ```python
-from a2ui.inference.schema.constants import VERSION_0_8
-from a2ui.inference.schema.manager import A2uiSchemaManager, CatalogConfig
-from a2ui.inference.basic_catalog.provider import BasicCatalog
+from a2ui.core.schema.constants import VERSION_0_8
+from a2ui.core.schema.manager import A2uiSchemaManager, CatalogConfig
+from a2ui.basic_catalog.provider import BasicCatalog
 
 schema_manager = A2uiSchemaManager(
     version=VERSION_0_8,
@@ -118,7 +118,7 @@ After parsing and validating the A2UI JSON payloads, wrap them in an A2A DataPar
 
 To ensure the A2UI Renderers on the frontend recognize the data, add `{"mimeType": "application/json+a2ui"}` to the DataPart's metadata.
 
-**Recommendation:** Use the [create_a2ui_datapart](src/a2ui/extension/a2ui_extension.py#L37-L54) helper method to convert A2UI JSON payloads into an A2A DataPart.
+**Recommendation:** Use the [create_a2ui_datapart](src/a2ui/a2a.py#L37-L54) helper method to convert A2UI JSON payloads into an A2A DataPart.
 
 ## Use Cases