fixes with latest changes in dependencies

Author: fredjoonpark

sample_apps/python/multiagent_observability/Dockerfile

@@ -6,6 +6,6 @@ RUN apt-get update && \
 WORKDIR /app
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt && \
-	pip install awslabs.aws-api-mcp-server==0.1.4
+	pip install awslabs.aws-api-mcp-server
 COPY . .
 EXPOSE 9000

sample_apps/python/multiagent_observability/maestro_agent.py

@@ -12,6 +12,7 @@
 import sys
 import time
 from typing import List, Optional
+import httpx
 
 from strands import Agent
 from strands.telemetry import StrandsTelemetry
@@ -107,8 +108,8 @@ def parse_arguments() -> argparse.Namespace:
         "--agent-urls",
         nargs="+",
         default=[
-            "http://aws-agent:9001",
-            "http://cfn-agent:9002",
+            "http://host.docker.internal:9001",
+            "http://host.docker.internal:9002",
         ],
         help="List of known agent URLs"
     )

sample_apps/python/multiagent_observability/requirements.txt

@@ -1,3 +1,3 @@
-uv==0.8.3
-strands-agents[ a2a, otel ]==1.1.0
-strands-agents-tools==0.2.2
+uv
+strands-agents[ a2a, otel ]
+strands-agents-tools

sample_apps/python/multiagent_observability/strands_mcp_agent.py

@@ -74,6 +74,7 @@
         )
         a2a_server = A2AServer(
             agent=agent,
+            host="0.0.0.0",
             port=agent_port,
             http_url=http_url
         )