diff --git a/hello_nexus/__init__.py b/hello_nexus/__init__.py
new file mode 100644
index 00000000..7919e866
--- /dev/null
+++ b/hello_nexus/__init__.py
@@ -0,0 +1,3 @@
+from rich.traceback import install
+
+install(show_locals=True)
diff --git a/hello_nexus/caller/app.py b/hello_nexus/caller/app.py
new file mode 100644
index 00000000..7097b7e9
--- /dev/null
+++ b/hello_nexus/caller/app.py
@@ -0,0 +1,72 @@
+import asyncio
+import sys
+from typing import Any, Type
+
+from temporalio.client import Client
+from temporalio.worker import UnsandboxedWorkflowRunner, Worker
+
+interrupt_event = asyncio.Event()
+
+
+async def execute_workflow(workflow_cls: Type[Any], input: Any) -> None:
+    client = await Client.connect(
+        "localhost:7233", namespace="my-caller-namespace-python"
+    )
+    task_queue = "my-caller-task-queue"
+
+    async with Worker(
+        client,
+        task_queue=task_queue,
+        workflows=[workflow_cls],
+        workflow_runner=UnsandboxedWorkflowRunner(),
+    ):
+        print("🟠 Caller worker started")
+        result = await client.execute_workflow(
+            workflow_cls.run,
+            input,
+            id="my-caller-workflow-id",
+            task_queue=task_queue,
+        )
+        print("🟢 workflow result:", result)
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 3:
+        print("Usage: python -m nexus.caller.app [echo|hello] [impl|interface]")
+        sys.exit(1)
+
+    [wf_name, impl_or_interface] = sys.argv[1:]
+
+    if impl_or_interface == "impl":
+        from hello_nexus.caller.workflows_via_impl import (
+            Echo2CallerWorkflow,
+            Echo3CallerWorkflow,
+            EchoCallerWorkflow,
+            Hello2CallerWorkflow,
+            HelloCallerWorkflow,
+        )
+    elif impl_or_interface == "interface":
+        from hello_nexus.caller.workflows_via_interface import (
+            Echo2CallerWorkflow,
+            Echo3CallerWorkflow,
+            EchoCallerWorkflow,
+            Hello2CallerWorkflow,
+            HelloCallerWorkflow,
+        )
+    else:
+        raise ValueError(f"Invalid impl_or_interface: {impl_or_interface}")
+
+    fn = {
+        "echo": lambda: execute_workflow(EchoCallerWorkflow, "hello"),
+        "echo2": lambda: execute_workflow(Echo2CallerWorkflow, "hello"),
+        "echo3": lambda: execute_workflow(Echo3CallerWorkflow, "hello"),
+        "hello": lambda: execute_workflow(HelloCallerWorkflow, "world"),
+        "hello2": lambda: execute_workflow(Hello2CallerWorkflow, "world"),
+    }[wf_name]
+
+    loop = asyncio.new_event_loop()
+    try:
+        loop.run_until_complete(fn())
+    except KeyboardInterrupt:
+        interrupt_event.set()
+        loop.run_until_complete(loop.shutdown_asyncgens())
diff --git a/hello_nexus/caller/workflows_via_impl.py b/hello_nexus/caller/workflows_via_impl.py
new file mode 100644
index 00000000..fa8c6aa2
--- /dev/null
+++ b/hello_nexus/caller/workflows_via_impl.py
@@ -0,0 +1,93 @@
+from datetime import timedelta
+
+import xray
+from temporalio import workflow
+from temporalio.exceptions import FailureError
+from temporalio.workflow import NexusClient
+
+from hello_nexus.handler.nexus_service import (
+    EchoInput,
+    EchoOutput,
+    HelloInput,
+    HelloOutput,
+    MyNexusService,
+)
+
+
+class CallerWorkflowBase:
+    def __init__(self):
+        self.nexus_client = NexusClient(
+            MyNexusService,  # or string name "my-nexus-service",
+            "my-nexus-endpoint-name-python",
+            schedule_to_close_timeout=timedelta(seconds=30),
+        )
+
+
+@workflow.defn
+class EchoCallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, message: str) -> EchoOutput:
+        op_output = await self.nexus_client.execute_operation(
+            MyNexusService.echo,
+            EchoInput(message),
+        )
+        return op_output
+
+
+@workflow.defn
+class Echo2CallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, message: str) -> EchoOutput:
+        op_output = await self.nexus_client.execute_operation(
+            MyNexusService.echo2,
+            EchoInput(message),
+        )
+        return op_output
+
+
+@workflow.defn
+class Echo3CallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, message: str) -> EchoOutput:
+        op_output = await self.nexus_client.execute_operation(
+            MyNexusService.echo3,
+            EchoInput(message),
+        )
+        return op_output
+
+
+@workflow.defn
+class HelloCallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, name: str) -> HelloOutput:
+        handle = await self.nexus_client.start_operation(
+            MyNexusService.hello,
+            HelloInput(name),
+        )
+        assert handle.cancel()
+        try:
+            await handle
+        except FailureError:
+            handle = await self.nexus_client.start_operation(
+                MyNexusService.hello,
+                HelloInput(name),
+            )
+            result = await handle
+            return result
+        raise AssertionError("Expected Nexus operation to be cancelled")
+
+
+@workflow.defn
+class Hello2CallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, name: str) -> HelloOutput:
+        handle = await self.nexus_client.start_operation(
+            MyNexusService.hello2,
+            HelloInput(name),
+        )
+        return await handle
diff --git a/hello_nexus/caller/workflows_via_interface.py b/hello_nexus/caller/workflows_via_interface.py
new file mode 100644
index 00000000..79915155
--- /dev/null
+++ b/hello_nexus/caller/workflows_via_interface.py
@@ -0,0 +1,93 @@
+from datetime import timedelta
+
+import xray
+from temporalio import workflow
+from temporalio.exceptions import FailureError
+from temporalio.workflow import NexusClient
+
+from hello_nexus.service.interface import (
+    EchoInput,
+    EchoOutput,
+    HelloInput,
+    HelloOutput,
+    MyNexusService,
+)
+
+
+class CallerWorkflowBase:
+    def __init__(self):
+        self.nexus_client = NexusClient(
+            MyNexusService,  # or string name "my-nexus-service",
+            "my-nexus-endpoint-name-python",
+            schedule_to_close_timeout=timedelta(seconds=30),
+        )
+
+
+@workflow.defn
+class EchoCallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, message: str) -> EchoOutput:
+        op_output = await self.nexus_client.execute_operation(
+            MyNexusService.echo,
+            EchoInput(message),
+        )
+        return op_output
+
+
+@workflow.defn
+class Echo2CallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, message: str) -> EchoOutput:
+        op_output = await self.nexus_client.execute_operation(
+            MyNexusService.echo2,
+            EchoInput(message),
+        )
+        return op_output
+
+
+@workflow.defn
+class Echo3CallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, message: str) -> EchoOutput:
+        op_output = await self.nexus_client.execute_operation(
+            MyNexusService.echo3,
+            EchoInput(message),
+        )
+        return op_output
+
+
+@workflow.defn
+class HelloCallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, name: str) -> HelloOutput:
+        handle = await self.nexus_client.start_operation(
+            MyNexusService.hello,
+            HelloInput(name),
+        )
+        assert handle.cancel()
+        try:
+            await handle
+        except FailureError:
+            handle = await self.nexus_client.start_operation(
+                MyNexusService.hello,
+                HelloInput(name),
+            )
+            result = await handle
+            return result
+        raise AssertionError("Expected Nexus operation to be cancelled")
+
+
+@workflow.defn
+class Hello2CallerWorkflow(CallerWorkflowBase):
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, name: str) -> HelloOutput:
+        handle = await self.nexus_client.start_operation(
+            MyNexusService.hello2,
+            HelloInput(name),
+        )
+        return await handle
diff --git a/hello_nexus/clean b/hello_nexus/clean
new file mode 100755
index 00000000..0fd588c3
--- /dev/null
+++ b/hello_nexus/clean
@@ -0,0 +1,14 @@
+temporal-delete-all my-target-namespace-python
+temporal-delete-all my-caller-namespace-python
+
+temporal operator namespace create --namespace my-target-namespace-python
+temporal operator namespace create --namespace my-caller-namespace-python
+
+sleep 1
+
+temporal operator nexus endpoint create \
+  --name my-nexus-endpoint-name-python \
+  --target-namespace my-target-namespace-python \
+  --target-task-queue my-target-task-queue-python \
+  --description-file ./hello_nexus/service/description.md
+  
\ No newline at end of file
diff --git a/hello_nexus/handler/activities.py b/hello_nexus/handler/activities.py
new file mode 100644
index 00000000..a43241eb
--- /dev/null
+++ b/hello_nexus/handler/activities.py
@@ -0,0 +1,14 @@
+import asyncio
+
+from temporalio import activity
+
+from hello_nexus.service.interface import (
+    HelloInput,
+    HelloOutput,
+)
+
+
+@activity.defn
+async def hello_activity(input: HelloInput) -> HelloOutput:
+    await asyncio.sleep(1)
+    return HelloOutput(message=f"hello {input.name}")
diff --git a/hello_nexus/handler/dbclient.py b/hello_nexus/handler/dbclient.py
new file mode 100644
index 00000000..22f22316
--- /dev/null
+++ b/hello_nexus/handler/dbclient.py
@@ -0,0 +1,3 @@
+class MyDBClient:
+    def execute(self, query: str) -> str:
+        return "<query result>"
diff --git a/hello_nexus/handler/nexus_service.py b/hello_nexus/handler/nexus_service.py
new file mode 100644
index 00000000..4aed7bf2
--- /dev/null
+++ b/hello_nexus/handler/nexus_service.py
@@ -0,0 +1,176 @@
+"""
+Notes:
+
+Sync operations:
+---------------
+Implementations are free to make arbitrary network calls, or perform CPU-bound
+computations such as this one. Total execution duration must not exceed 10s. To
+perform Temporal client calls such as signaling/querying/listing workflows, use
+self.client.
+
+
+Workflow operations:
+---------------------
+The task queue defaults to the task queue being used by the Nexus worker.
+"""
+
+from __future__ import annotations
+
+import nexusrpc.handler
+import temporalio.common
+import temporalio.nexus.handler
+
+from hello_nexus.handler.dbclient import MyDBClient
+from hello_nexus.handler.workflows import HelloWorkflow
+from hello_nexus.service import interface
+from hello_nexus.service.interface import (
+    EchoInput,
+    EchoOutput,
+    HelloInput,
+    HelloOutput,
+)
+
+
+# Inheriting from the protocol here is optional. Users who do it will get the
+# operation definition itself type-checked in situ against the interface (*).
+# Call-sites using instances of the operation are always type-checked.
+#
+# (*) However, in VSCode/Pyright this is done only when type-checking is set to
+# 'strict'.
+class EchoOperation(nexusrpc.handler.Operation[EchoInput, EchoOutput]):
+    def __init__(self, service: MyNexusService):
+        self.service = service
+
+    # TODO support non-async def
+    async def start(
+        self, input: EchoInput, options: nexusrpc.handler.StartOperationOptions
+    ) -> EchoOutput:
+        return EchoOutput(message=f"Echo {input.message}!")
+
+    async def cancel(
+        self, token: str, options: nexusrpc.handler.CancelOperationOptions
+    ) -> None:
+        raise NotImplementedError
+
+    async def fetch_info(
+        self, token: str, options: nexusrpc.handler.FetchOperationInfoOptions
+    ) -> nexusrpc.handler.OperationInfo:
+        raise NotImplementedError
+
+    async def fetch_result(
+        self, token: str, options: nexusrpc.handler.FetchOperationResultOptions
+    ) -> EchoOutput:
+        raise NotImplementedError
+
+
+# Inheriting from the protocol here is optional. Users who do it will get the
+# operation definition itself type-checked in situ against the interface (*).
+# Call-sites using instances of the operation are always type-checked.
+#
+# (*) However, in VSCode/Pyright this is done only when type-checking is set to
+# 'strict'.
+class HelloOperation:  # (nexusrpc.handler.Operation[HelloInput, HelloOutput]):
+    def __init__(self, service: "MyNexusService"):
+        self.service = service
+
+    async def start(
+        self, input: HelloInput, options: nexusrpc.handler.StartOperationOptions
+    ) -> temporalio.nexus.handler.StartWorkflowOperationResult[HelloOutput]:
+        self.service.db_client.execute("<some query>")
+        workflow_id = "default-workflow-id"
+        return await temporalio.nexus.handler.start_workflow(
+            HelloWorkflow.run,
+            input,
+            id=workflow_id,
+            options=options,
+        )
+
+    async def cancel(
+        self, token: str, options: nexusrpc.handler.CancelOperationOptions
+    ) -> None:
+        return await temporalio.nexus.handler.cancel_workflow(token, options)
+
+    async def fetch_info(
+        self, token: str, options: nexusrpc.handler.FetchOperationInfoOptions
+    ) -> nexusrpc.handler.OperationInfo:
+        return await temporalio.nexus.handler.fetch_workflow_info(token, options)
+
+    async def fetch_result(
+        self, token: str, options: nexusrpc.handler.FetchOperationResultOptions
+    ) -> HelloOutput:
+        return await temporalio.nexus.handler.fetch_workflow_result(token, options)
+
+
+class EchoOperation3(nexusrpc.handler.AbstractOperation[EchoInput, EchoOutput]):
+    async def start(
+        self, input: EchoInput, options: nexusrpc.handler.StartOperationOptions
+    ) -> EchoOutput:
+        return EchoOutput(message=f"Echo {input.message}! [from base class variant]")
+
+
+@nexusrpc.handler.service(interface=interface.MyNexusService)
+class MyNexusService:
+    def __init__(self, db_client: MyDBClient):
+        # An example of something that might be held by the service instance.
+        self.db_client = db_client
+
+    # --------------------------------------------------------------------------
+    # Operations defined by explicitly implementing the Operation interface.
+    #
+
+    @nexusrpc.handler.operation
+    def echo(self) -> nexusrpc.handler.Operation[EchoInput, EchoOutput]:
+        return EchoOperation(self)
+
+    @nexusrpc.handler.operation
+    def hello(self) -> nexusrpc.handler.Operation[HelloInput, HelloOutput]:
+        return HelloOperation(self)
+
+    @nexusrpc.handler.operation
+    def echo3(self) -> nexusrpc.handler.Operation[EchoInput, EchoOutput]:
+        return EchoOperation3()
+
+    # --------------------------------------------------------------------------
+    # Operations defined by providing the start method only, using the
+    # "shorthand" decorators.
+    #
+    # Note that a start method defined this way has access to the service
+    # instance, but not to the operation instance (users who need the latter
+    # should implement the Operation interface directly).
+
+    @nexusrpc.handler.sync_operation
+    async def echo2(
+        self, input: EchoInput, _: nexusrpc.handler.StartOperationOptions
+    ) -> EchoOutput:
+        return EchoOutput(message=f"Echo {input.message} [via shorthand]!")
+
+    # --------------------------------------------------------------------------
+    # Operations defined by providing the start method only, using the
+    # "shorthand" decorators.
+    #
+    # Note that a start method defined this way has access to the service
+    # instance, but not to the operation instance (users who need the latter
+    # should implement the Operation interface directly).
+
+    @temporalio.nexus.handler.workflow_run_operation
+    async def hello2(
+        self, input: HelloInput, options: nexusrpc.handler.StartOperationOptions
+    ) -> temporalio.nexus.handler.StartWorkflowOperationResult[HelloOutput]:
+        self.db_client.execute("<some query>")
+        workflow_id = "default-workflow-id"
+        input.name += " [via shorthand]"
+        return await temporalio.nexus.handler.start_workflow(
+            HelloWorkflow.run,
+            input,
+            id=workflow_id,
+            options=options,
+        )
+
+
+if __name__ == "__main__":
+    # Check run-time type annotations resulting from the decorators.
+    service = MyNexusService(MyDBClient())
+    print("echo:", temporalio.common._type_hints_from_func(service.echo2().start))
+    print(
+        "hello:", temporalio.common._type_hints_from_func(service.hello2().fetch_result)
+    )
diff --git a/hello_nexus/handler/worker.py b/hello_nexus/handler/worker.py
new file mode 100644
index 00000000..e3a8f4ef
--- /dev/null
+++ b/hello_nexus/handler/worker.py
@@ -0,0 +1,36 @@
+import asyncio
+
+from temporalio.client import Client
+from temporalio.worker import UnsandboxedWorkflowRunner, Worker
+
+from hello_nexus.handler.dbclient import MyDBClient
+from hello_nexus.handler.nexus_service import MyNexusService
+from hello_nexus.handler.workflows import HelloWorkflow
+
+interrupt_event = asyncio.Event()
+
+
+async def main():
+    client = await Client.connect(
+        "localhost:7233", namespace="my-target-namespace-python"
+    )
+    task_queue = "my-target-task-queue-python"
+
+    async with Worker(
+        client,
+        task_queue=task_queue,
+        workflows=[HelloWorkflow],
+        nexus_services=[MyNexusService(db_client=MyDBClient())],
+        workflow_runner=UnsandboxedWorkflowRunner(),
+    ):
+        print("Handler worker started")
+        await asyncio.Future()
+
+
+if __name__ == "__main__":
+    loop = asyncio.new_event_loop()
+    try:
+        loop.run_until_complete(main())
+    except KeyboardInterrupt:
+        interrupt_event.set()
+        loop.run_until_complete(loop.shutdown_asyncgens())
diff --git a/hello_nexus/handler/workflows.py b/hello_nexus/handler/workflows.py
new file mode 100644
index 00000000..bb22b742
--- /dev/null
+++ b/hello_nexus/handler/workflows.py
@@ -0,0 +1,27 @@
+import asyncio
+
+import xray
+from temporalio import workflow
+
+from hello_nexus.service.interface import (
+    HelloInput,
+    HelloOutput,
+)
+
+
+@workflow.defn
+class HelloWorkflow:
+    """
+    Workflow that backs the `hello` operation.
+    """
+
+    @xray.start_as_current_workflow_method_span()
+    @workflow.run
+    async def run(self, input: HelloInput) -> HelloOutput:
+        await asyncio.sleep(1)  # so that it can be cancelled
+        return HelloOutput(message=f"Hello {input.name}! [from workflow]")
+
+    @workflow.update
+    async def my_update(self, input: HelloInput) -> HelloOutput:
+        await asyncio.sleep(1)
+        return HelloOutput(message=f"Hello {input.name}! [from update]")
diff --git a/hello_nexus/service/description.md b/hello_nexus/service/description.md
new file mode 100644
index 00000000..c761f32f
--- /dev/null
+++ b/hello_nexus/service/description.md
@@ -0,0 +1,8 @@
+Service Name:
+	MyNexusService
+Operation Names:
+	echo
+	hello
+
+Input / Output arguments are in the following repository:
+https://github.com/temporalio/samples-python/blob/main/nexus/service/interface.py
diff --git a/hello_nexus/service/interface.py b/hello_nexus/service/interface.py
new file mode 100644
index 00000000..9d4e958d
--- /dev/null
+++ b/hello_nexus/service/interface.py
@@ -0,0 +1,34 @@
+from dataclasses import dataclass
+
+import nexusrpc
+
+
+@dataclass
+class HelloInput:
+    name: str
+
+
+@dataclass
+class HelloOutput:
+    message: str
+
+
+@dataclass
+class EchoInput:
+    message: str
+
+
+@dataclass
+class EchoOutput:
+    message: str
+
+
+# TODO(dan): for now, making interface explicit in imports to distinguish from handler
+# implementation. Final import scheme and names TBD.
+@nexusrpc.interface.service
+class MyNexusService:
+    echo: nexusrpc.interface.Operation[EchoInput, EchoOutput]
+    hello: nexusrpc.interface.Operation[HelloInput, HelloOutput]
+    echo2: nexusrpc.interface.Operation[EchoInput, EchoOutput]
+    hello2: nexusrpc.interface.Operation[HelloInput, HelloOutput]
+    echo3: nexusrpc.interface.Operation[EchoInput, EchoOutput]
diff --git a/hello_nexus/simple.py b/hello_nexus/simple.py
new file mode 100644
index 00000000..d0aa83e9
--- /dev/null
+++ b/hello_nexus/simple.py
@@ -0,0 +1,24 @@
+from datetime import timedelta
+
+import nexusrpc
+from temporalio import workflow
+from temporalio.workflow import NexusClient
+
+
+@nexusrpc.handler.service
+class MyNexusService:
+    @nexusrpc.handler.sync_operation
+    async def my_op(self, input: str, _: nexusrpc.handler.StartOperationOptions) -> str:
+        return f"{input}-result"
+
+
+@workflow.defn
+class Workflow:
+    @workflow.run
+    async def run(self, message: str) -> str:
+        nexus_client = NexusClient(
+            MyNexusService,
+            "my-endpoint",
+            schedule_to_close_timeout=timedelta(seconds=30),
+        )
+        return await nexus_client.execute_operation(MyNexusService.my_op, message)
diff --git a/pyproject.toml b/pyproject.toml
index a7e0921d..60325d96 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,11 @@ authors = [{ name = "Temporal Technologies Inc", email = "sdk@temporal.io" }]
 requires-python = "~=3.9"
 readme = "README.md"
 license = "MIT"
-dependencies = ["temporalio>=1.11.0,<2"]
+dependencies = [
+    "ipython>=8.18.1",
+    "rich>=13.9.4",
+    "temporalio",
+]
 
 [project.urls]
 Homepage = "https://github.com/temporalio/samples-python"
@@ -22,6 +26,8 @@ dev = [
     "pytest>=7.1.2,<8",
     "pytest-asyncio>=0.18.3,<0.19",
     "frozenlist>=1.4.0,<2",
+    "pdbpp>=0.10.3",
+    "pyright>=1.1.394",
     "types-pyyaml>=6.0.12.20241230,<7",
 ]
 bedrock = ["boto3>=1.34.92,<2"]
@@ -43,9 +49,12 @@ langchain = [
     "tqdm>=4.62.0,<5",
     "uvicorn[standard]>=0.24.0.post1,<0.25",
 ]
+nexus = [
+    "nexus-rpc",
+]
 open-telemetry = [
     "temporalio[opentelemetry]",
-    "opentelemetry-exporter-otlp-proto-grpc==1.18.0",
+    "opentelemetry-exporter-otlp-proto-grpc",
 ]
 pydantic-converter = ["pydantic>=2.10.6,<3"]
 sentry = ["sentry-sdk>=1.11.0,<2"]
@@ -68,12 +77,17 @@ default-groups = [
     "encryption",
     "gevent",
     "langchain",
+    "nexus",
     "open-telemetry",
     "pydantic-converter",
     "sentry",
     "trio-async",
 ]
 
+[tool.uv.sources]
+nexus-rpc = { path = "../nexus-sdk-python", editable = true }
+temporalio = { path = "../sdk-python", editable = true }
+
 [tool.hatch.build.targets.sdist]
 include = ["./**/*.py"]
 
@@ -91,6 +105,7 @@ packages = [
     "encryption",
     "gevent_async",
     "hello",
+    "hello_nexus",
     "langchain",
     "message_passing",
     "open_telemetry",
diff --git a/uv.lock b/uv.lock
index 3221e5e8..156d0fae 100644
--- a/uv.lock
+++ b/uv.lock
@@ -151,6 +151,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/19/24/44299477fe7dcc9cb58d0a57d5a7588d6af2ff403fdd2d47a246c91a3246/anyio-3.7.1-py3-none-any.whl", hash = "sha256:91dee416e570e92c64041bd18b900d1d6fa78dff7048769ce5ac5ddad004fbb5", size = 80896 },
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+[[package]]
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+version = "3.0.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/4a/e7/82da0a03e7ba5141f05cce0d302e6eed121ae055e0456ca228bf693984bc/asttokens-3.0.0.tar.gz", hash = "sha256:0dcd8baa8d62b0c1d118b399b2ddba3c4aff271d0d7a9e0d4c1681c79035bbc7", size = 61978 }
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 name = "async-timeout"
 version = "4.0.3"
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+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/43/fa/6d96a0978d19e17b68d634497769987b16c8f4cd0a7a05048bec693caa6b/decorator-5.2.1.tar.gz", hash = "sha256:65f266143752f734b0a7cc83c46f4618af75b8c5911b00ccb61d0ac9b6da0360", size = 56711 }
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 version = "1.2.18"
@@ -483,6 +501,28 @@ wheels = [
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+[[package]]
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+version = "0.11.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "pyreadline3", marker = "sys_platform == 'win32'" },
+    { name = "pyrepl", marker = "python_full_version < '3.13'" },
+]
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 version = "0.105.0"
@@ -840,6 +880,11 @@ wheels = [
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+version = "0.1.0"
+source = { editable = "../../hyperlinked/python" }
+
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 version = "3.10"
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+resolution-markers = [
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+    { name = "exceptiongroup", marker = "python_full_version < '3.10'" },
+    { name = "jedi", marker = "python_full_version < '3.10'" },
+    { name = "matplotlib-inline", marker = "python_full_version < '3.10'" },
+    { name = "pexpect", marker = "python_full_version < '3.10' and sys_platform != 'win32'" },
+    { name = "prompt-toolkit", marker = "python_full_version < '3.10'" },
+    { name = "pygments", marker = "python_full_version < '3.10'" },
+    { name = "stack-data", marker = "python_full_version < '3.10'" },
+    { name = "traitlets", marker = "python_full_version < '3.10'" },
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 opentelemetry = [
@@ -2254,11 +2589,51 @@ opentelemetry = [
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+[package.metadata]
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+    { name = "python-dateutil", marker = "python_full_version < '3.11'", specifier = ">=2.8.2,<3" },
+    { name = "temporalio-xray", editable = "../xray/sdks/python" },
+    { name = "types-protobuf", specifier = ">=3.20" },
+    { name = "typing-extensions", specifier = ">=4.2.0,<5" },
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+
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+    { name = "grpcio-tools", specifier = ">=1.48.2,<2" },
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+    { name = "ruff", specifier = ">=0.5.0,<0.6" },
+    { name = "toml", specifier = ">=0.10.2,<0.11" },
+    { name = "twine", specifier = ">=4.0.1,<5" },
+]
+
 [[package]]
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 version = "0.1a1"
 source = { editable = "." }
 dependencies = [
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+    { name = "ipython", version = "8.35.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version == '3.10.*'" },
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+    { name = "rich" },
     { name = "temporalio" },
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@@ -2277,6 +2652,8 @@ dev = [
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     { name = "isort" },
     { name = "mypy" },
+    { name = "pdbpp" },
+    { name = "pyright" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
     { name = "types-pyyaml" },
@@ -2301,6 +2678,9 @@ langchain = [
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 ]
+nexus = [
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+]
 open-telemetry = [
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     { name = "temporalio", extra = ["opentelemetry"] },
@@ -2317,7 +2697,11 @@ trio-async = [
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 [package.metadata]
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+requires-dist = [
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+    { name = "rich", specifier = ">=13.9.4" },
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@@ -2332,6 +2716,8 @@ dev = [
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@@ -2354,9 +2740,10 @@ langchain = [
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-    { name = "opentelemetry-exporter-otlp-proto-grpc", specifier = "==1.18.0" },
-    { name = "temporalio", extras = ["opentelemetry"] },
+    { name = "opentelemetry-exporter-otlp-proto-grpc" },
+    { name = "temporalio", extras = ["opentelemetry"], editable = "../sdk-python" },
 ]
 pydantic-converter = [{ name = "pydantic", specifier = ">=2.10.6,<3" }]
 sentry = [{ name = "sentry-sdk", specifier = ">=1.11.0,<2" }]
@@ -2365,6 +2752,25 @@ trio-async = [
     { name = "trio-asyncio", specifier = ">=0.15.0,<0.16" },
 ]
 
+[[package]]
+name = "temporalio-xray"
+version = "0.1.0"
+source = { editable = "../xray/sdks/python" }
+dependencies = [
+    { name = "opentelemetry-exporter-otlp-proto-grpc" },
+    { name = "opentelemetry-sdk" },
+    { name = "protobuf" },
+    { name = "temporalio" },
+]
+
+[package.metadata]
+requires-dist = [
+    { name = "opentelemetry-exporter-otlp-proto-grpc", specifier = ">=1.18" },
+    { name = "opentelemetry-sdk", specifier = ">=1.11.1,<2" },
+    { name = "protobuf", specifier = ">=3.20" },
+    { name = "temporalio", specifier = ">=1.10.0" },
+]
+
 [[package]]
 name = "tenacity"
 version = "8.5.0"
@@ -2467,6 +2873,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/d0/30/dc54f88dd4a2b5dc8a0279bdd7270e735851848b762aeb1c1184ed1f6b14/tqdm-4.67.1-py3-none-any.whl", hash = "sha256:26445eca388f82e72884e0d580d5464cd801a3ea01e63e5601bdff9ba6a48de2", size = 78540 },
 ]
 
+[[package]]
+name = "traitlets"
+version = "5.14.3"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/eb/79/72064e6a701c2183016abbbfedaba506d81e30e232a68c9f0d6f6fcd1574/traitlets-5.14.3.tar.gz", hash = "sha256:9ed0579d3502c94b4b3732ac120375cda96f923114522847de4b3bb98b96b6b7", size = 161621 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/00/c0/8f5d070730d7836adc9c9b6408dec68c6ced86b304a9b26a14df072a6e8c/traitlets-5.14.3-py3-none-any.whl", hash = "sha256:b74e89e397b1ed28cc831db7aea759ba6640cb3de13090ca145426688ff1ac4f", size = 85359 },
+]
+
 [[package]]
 name = "trio"
 version = "0.28.0"
@@ -2733,6 +3148,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/7a/e9/3cbcf4d70cd0b6d3f30631deae1bf37cc0be39887ca327a44462fe546bf5/watchfiles-1.0.4-pp39-pypy39_pp73-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:5e0227b8ed9074c6172cf55d85b5670199c99ab11fd27d2c473aa30aec67ee42", size = 452488 },
 ]
 
+[[package]]
+name = "wcwidth"
+version = "0.2.13"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/6c/63/53559446a878410fc5a5974feb13d31d78d752eb18aeba59c7fef1af7598/wcwidth-0.2.13.tar.gz", hash = "sha256:72ea0c06399eb286d978fdedb6923a9eb47e1c486ce63e9b4e64fc18303972b5", size = 101301 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/fd/84/fd2ba7aafacbad3c4201d395674fc6348826569da3c0937e75505ead3528/wcwidth-0.2.13-py2.py3-none-any.whl", hash = "sha256:3da69048e4540d84af32131829ff948f1e022c1c6bdb8d6102117aac784f6859", size = 34166 },
+]
+
 [[package]]
 name = "websockets"
 version = "15.0.1"