diff --git a/pyproject.toml b/pyproject.toml
index 17e758d54..ab746b262 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,6 +49,8 @@ dependencies = [
     "claude-agent-sdk>=0.1.0",
     "anthropic>=0.40.0",
     "langgraph-checkpoint>=2.0.0",
+    "opentelemetry-sdk>=1.20.0",
+    "opentelemetry-api>=1.20.0",
 ]
 
 requires-python = ">= 3.12,<4"
diff --git a/src/agentex/lib/cli/templates/sync-openai-agents/project/acp.py.j2 b/src/agentex/lib/cli/templates/sync-openai-agents/project/acp.py.j2
index 20b31caf3..1a7d5ca5d 100644
--- a/src/agentex/lib/cli/templates/sync-openai-agents/project/acp.py.j2
+++ b/src/agentex/lib/cli/templates/sync-openai-agents/project/acp.py.j2
@@ -9,8 +9,9 @@ from agentex.lib.core.tracing.tracing_processor_manager import add_tracing_proce
 from agentex.lib.types.tracing import SGPTracingProcessorConfig
 from agentex.lib.utils.model_utils import BaseModel
 
-from agentex.types.task_message_update import TaskMessageUpdate
+from agentex.types.task_message_update import TaskMessageUpdate, StreamTaskMessageFull
 from agentex.types.task_message_content import TaskMessageContent
+from agentex.types.text_content import TextContent
 from agentex.lib.utils.logging import make_logger
 from agents import Agent, Runner, RunConfig, function_tool
 
@@ -83,6 +84,7 @@ async def handle_message_send(
                 content="Hey, sorry I'm unable to respond to your message because you're running this example without an OpenAI API key. Please set the OPENAI_API_KEY environment variable to run this example. Do this by either by adding a .env file to the project/ directory or by setting the environment variable in your terminal.",
             ),
         )
+        return
 
     user_prompt = params.content.content
 
diff --git a/src/agentex/lib/core/clients/temporal/utils.py b/src/agentex/lib/core/clients/temporal/utils.py
index 9be7cf5c4..991e7cd1c 100644
--- a/src/agentex/lib/core/clients/temporal/utils.py
+++ b/src/agentex/lib/core/clients/temporal/utils.py
@@ -6,7 +6,6 @@
 from temporalio.worker import Interceptor
 from temporalio.runtime import Runtime, TelemetryConfig, OpenTelemetryConfig
 from temporalio.contrib.pydantic import pydantic_data_converter
-from temporalio.contrib.openai_agents import OpenAIAgentsPlugin
 
 # class DateTimeJSONEncoder(AdvancedJSONEncoder):
 #     def default(self, o: Any) -> Any:
@@ -97,6 +96,8 @@ async def get_temporal_client(temporal_address: str, metrics_url: str | None = N
         validate_client_plugins(plugins)
 
     # Check if OpenAI plugin is present - it needs to configure its own data converter
+    # Lazy import to avoid pulling in opentelemetry.sdk for non-Temporal agents
+    from temporalio.contrib.openai_agents import OpenAIAgentsPlugin
     has_openai_plugin = any(
         isinstance(p, OpenAIAgentsPlugin) for p in (plugins or [])
     )
diff --git a/uv.lock b/uv.lock
index 828726620..ed3d0a690 100644
--- a/uv.lock
+++ b/uv.lock
@@ -8,7 +8,7 @@ resolution-markers = [
 
 [[package]]
 name = "agentex-sdk"
-version = "0.9.3"
+version = "0.9.4"
 source = { editable = "." }
 dependencies = [
     { name = "aiohttp" },
@@ -32,6 +32,8 @@ dependencies = [
     { name = "mcp", extra = ["cli"] },
     { name = "openai" },
     { name = "openai-agents" },
+    { name = "opentelemetry-api" },
+    { name = "opentelemetry-sdk" },
     { name = "pydantic" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
@@ -94,6 +96,8 @@ requires-dist = [
     { name = "mcp", extras = ["cli"], specifier = ">=1.4.1" },
     { name = "openai", specifier = ">=2.2,<3" },
     { name = "openai-agents", specifier = "==0.4.2" },
+    { name = "opentelemetry-api", specifier = ">=1.20.0" },
+    { name = "opentelemetry-sdk", specifier = ">=1.20.0" },
     { name = "pydantic", specifier = ">=2.0.0,<3" },
     { name = "pytest", specifier = ">=8.4.0" },
     { name = "pytest-asyncio", specifier = ">=1.0.0" },
@@ -1489,6 +1493,33 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/91/48/28ed9e55dcf2f453128df738210a980e09f4e468a456fa3c763dbc8be70a/opentelemetry_api-1.37.0-py3-none-any.whl", hash = "sha256:accf2024d3e89faec14302213bc39550ec0f4095d1cf5ca688e1bfb1c8612f47", size = 65732, upload-time = "2025-09-11T10:28:41.826Z" },
 ]
 
+[[package]]
+name = "opentelemetry-sdk"
+version = "1.37.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "opentelemetry-api" },
+    { name = "opentelemetry-semantic-conventions" },
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/f4/62/2e0ca80d7fe94f0b193135375da92c640d15fe81f636658d2acf373086bc/opentelemetry_sdk-1.37.0.tar.gz", hash = "sha256:cc8e089c10953ded765b5ab5669b198bbe0af1b3f89f1007d19acd32dc46dda5", size = 170404, upload-time = "2025-09-11T10:29:11.779Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/9f/62/9f4ad6a54126fb00f7ed4bb5034964c6e4f00fcd5a905e115bd22707e20d/opentelemetry_sdk-1.37.0-py3-none-any.whl", hash = "sha256:8f3c3c22063e52475c5dbced7209495c2c16723d016d39287dfc215d1771257c", size = 131941, upload-time = "2025-09-11T10:28:57.83Z" },
+]
+
+[[package]]
+name = "opentelemetry-semantic-conventions"
+version = "0.58b0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "opentelemetry-api" },
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/aa/1b/90701d91e6300d9f2fb352153fb1721ed99ed1f6ea14fa992c756016e63a/opentelemetry_semantic_conventions-0.58b0.tar.gz", hash = "sha256:6bd46f51264279c433755767bb44ad00f1c9e2367e1b42af563372c5a6fa0c25", size = 129867, upload-time = "2025-09-11T10:29:12.597Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/07/90/68152b7465f50285d3ce2481b3aec2f82822e3f52e5152eeeaf516bab841/opentelemetry_semantic_conventions-0.58b0-py3-none-any.whl", hash = "sha256:5564905ab1458b96684db1340232729fce3b5375a06e140e8904c78e4f815b28", size = 207954, upload-time = "2025-09-11T10:28:59.218Z" },
+]
+
 [[package]]
 name = "orjson"
 version = "3.11.7"