diff --git a/.env.example b/.env.example
index a826f74b4..e88b43a2b 100644
--- a/.env.example
+++ b/.env.example
@@ -7,7 +7,7 @@ LOG_LEVEL=info
 # Sales Agents Configuration (JSON string)
 # Replace with your actual agent endpoints and authentication tokens
 # For local testing, you can use the test MCP server:
-SALES_AGENTS_CONFIG='{"agents": [{"id": "test_mcp_local", "name": "Local Test MCP Server", "agent_uri": "http://127.0.0.1:3001/mcp", "protocol": "mcp", "requiresAuth": false}, {"id": "demo_agent_a2a", "name": "Demo A2A Agent", "agent_uri": "https://your-agent-endpoint.com", "protocol": "a2a", "auth_token_env": "your-actual-auth-token-here", "requiresAuth": true}, {"id": "demo_agent_mcp", "name": "Demo MCP Agent", "agent_uri": "https://your-agent-endpoint.com/mcp", "protocol": "mcp", "auth_token_env": "your-actual-auth-token-here", "requiresAuth": true}]}'
+SALES_AGENTS_CONFIG='{"agents": [{"id": "test_mcp_local", "name": "Local Test MCP Server", "agent_uri": "http://127.0.0.1:3001/mcp", "protocol": "mcp", "requiresAuth": false}, {"id": "demo_agent_a2a", "name": "Demo A2A Agent", "agent_uri": "https://test-agent.adcontextprotocol.org", "protocol": "a2a", "auth_token_env": "your-actual-auth-token-here", "requiresAuth": true}, {"id": "demo_agent_mcp", "name": "Demo MCP Agent", "agent_uri": "https://test-agent.adcontextprotocol.org/mcp", "protocol": "mcp", "auth_token_env": "your-actual-auth-token-here", "requiresAuth": true}]}'
 
 # Test MCP Server Configuration
 MCP_SERVER_PORT=3001
diff --git a/CLAUDE.md b/CLAUDE.md
index d5d07cd23..9dca5ac4a 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -241,7 +241,7 @@ The production `SALES_AGENTS_CONFIG` should contain:
     {
       "id": "principal_3bd0d4a8_a2a",
       "name": "AdCP Test Agent",
-      "agent_uri": "https://adcp-sales-agent.fly.dev",
+      "agent_uri": "https://test-agent.adcontextprotocol.org",
       "protocol": "a2a",
       "auth_token_env": "<AUTH_TOKEN>",
       "requiresAuth": true
@@ -249,7 +249,7 @@ The production `SALES_AGENTS_CONFIG` should contain:
     {
       "id": "principal_3bd0d4a8_mcp", 
       "name": "AdCP Test Agent",
-      "agent_uri": "https://adcp-sales-agent.fly.dev/mcp/",
+      "agent_uri": "https://test-agent.adcontextprotocol.org/mcp/",
       "protocol": "mcp",
       "auth_token_env": "<AUTH_TOKEN>",
       "requiresAuth": true
@@ -265,7 +265,7 @@ When you need to change agents, auth tokens, or URIs:
 
 ```bash
 # Single line format for terminal (replace <AUTH_TOKEN> with actual token)
-fly secrets set SALES_AGENTS_CONFIG='{"agents":[{"id":"principal_3bd0d4a8_a2a","name":"AdCP Test Agent","agent_uri":"https://adcp-sales-agent.fly.dev","protocol":"a2a","auth_token_env":"<AUTH_TOKEN>","requiresAuth":true},{"id":"principal_3bd0d4a8_mcp","name":"AdCP Test Agent","agent_uri":"https://adcp-sales-agent.fly.dev/mcp/","protocol":"mcp","auth_token_env":"<AUTH_TOKEN>","requiresAuth":true}]}'
+fly secrets set SALES_AGENTS_CONFIG='{"agents":[{"id":"principal_3bd0d4a8_a2a","name":"AdCP Test Agent","agent_uri":"https://test-agent.adcontextprotocol.org","protocol":"a2a","auth_token_env":"<AUTH_TOKEN>","requiresAuth":true},{"id":"principal_3bd0d4a8_mcp","name":"AdCP Test Agent","agent_uri":"https://test-agent.adcontextprotocol.org/mcp/","protocol":"mcp","auth_token_env":"<AUTH_TOKEN>","requiresAuth":true}]}'
 ```
 
 #### Toggle Real vs Demo Agents
@@ -299,8 +299,8 @@ fly logs -n | grep "Configured agents"
 Should show:
 ```
 📡 Configured agents: 2
-  - AdCP Test Agent (A2A) at https://adcp-sales-agent.fly.dev  
-  - AdCP Test Agent (MCP) at https://adcp-sales-agent.fly.dev/mcp/
+  - AdCP Test Agent (A2A) at https://test-agent.adcontextprotocol.org  
+  - AdCP Test Agent (MCP) at https://test-agent.adcontextprotocol.org/mcp/
 🔧 Real agents mode: ENABLED
 ```
 
@@ -322,8 +322,8 @@ Should show:
 
 3. **Agent not responding**: Check agent health:
    ```bash
-   curl -I https://adcp-sales-agent.fly.dev
-   curl -I https://adcp-sales-agent.fly.dev/mcp/
+   curl -I https://test-agent.adcontextprotocol.org
+   curl -I https://test-agent.adcontextprotocol.org/mcp/
    ```
 
 4. **Authentication issues**: Verify auth token in agent config and ensure `requiresAuth: true`
diff --git a/PRODUCTION-READY.md b/PRODUCTION-READY.md
index bc3399957..b89ed4071 100644
--- a/PRODUCTION-READY.md
+++ b/PRODUCTION-READY.md
@@ -3,8 +3,8 @@
 ## ✅ What's Configured for Production
 
 ### **Real Agent Integration**
-- **Test A2A Agent**: `https://adcp-sales-agent.fly.dev`
-- **Test MCP Agent**: `https://adcp-sales-agent.fly.dev/mcp`
+- **Test A2A Agent**: `https://test-agent.adcontextprotocol.org`
+- **Test MCP Agent**: `https://test-agent.adcontextprotocol.org/mcp`
 - **Protocol Support**: Both A2A and MCP protocols with real HTTP requests
 
 ### **Deployment Configuration**
@@ -30,14 +30,14 @@ fly secrets set 'SALES_AGENTS_CONFIG={
     {
       "id": "test_agent_a2a",
       "name": "Test A2A Agent",
-      "agent_uri": "https://adcp-sales-agent.fly.dev",
+      "agent_uri": "https://test-agent.adcontextprotocol.org",
       "protocol": "a2a",
       "requiresAuth": false
     },
     {
       "id": "test_agent_mcp",
       "name": "Test MCP Agent",
-      "agent_uri": "https://adcp-sales-agent.fly.dev/mcp",
+      "agent_uri": "https://test-agent.adcontextprotocol.org/mcp",
       "protocol": "mcp",
       "requiresAuth": false
     }
@@ -56,14 +56,14 @@ fly certs add testing.adcontextprotocol.org
 ### A2A Agent
 - **ID**: `test_agent_a2a`
 - **Name**: `Test A2A Agent`
-- **Endpoint**: `https://adcp-sales-agent.fly.dev`
+- **Endpoint**: `https://test-agent.adcontextprotocol.org`
 - **Protocol**: `a2a`
 - **Auth**: No authentication required for testing
 
 ### MCP Agent
 - **ID**: `test_agent_mcp` 
 - **Name**: `Test MCP Agent`
-- **Endpoint**: `https://adcp-sales-agent.fly.dev/mcp`
+- **Endpoint**: `https://test-agent.adcontextprotocol.org/mcp`
 - **Protocol**: `mcp`
 - **Auth**: No authentication required for testing
 
@@ -85,7 +85,7 @@ curl -X POST https://testing.adcontextprotocol.org/api/test \
       {
         "id": "test_agent_a2a",
         "name": "Test A2A Agent",
-        "agent_uri": "https://adcp-sales-agent.fly.dev",
+        "agent_uri": "https://test-agent.adcontextprotocol.org",
         "protocol": "a2a",
         "requiresAuth": false
       }
diff --git a/src/a2a-client.ts b/src/a2a-client.ts
index cbdfc1349..2f04d42f3 100644
--- a/src/a2a-client.ts
+++ b/src/a2a-client.ts
@@ -37,11 +37,14 @@ export async function callA2ATool(
       messageId: `msg_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,
       role: "user",
       parts: [{
-        kind: "text",
-        text: `Please execute ${toolName} with the following parameters: ${JSON.stringify({
-          brief,
-          ...(promotedOffering && { promoted_offering: promotedOffering })
-        })}`
+        kind: "data",
+        data: {
+          skill: toolName,
+          parameters: {
+            brief,
+            ...(promotedOffering && { promoted_offering: promotedOffering })
+          }
+        }
       }]
     },
     configuration: {