diff --git a/README.md b/README.md
index f819ff7..7ea5032 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ cd cadence-python-client
    ```bash
    # macOS
    brew install protobuf@29
-   
+
    # Linux/Other
    # Install protobuf 29.x via your package manager
    ```
@@ -35,7 +35,7 @@ cd cadence-python-client
    ```bash
    # macOS
    brew install uv
-   
+
    # Linux/Other
    curl -LsSf https://astral.sh/uv/install.sh | sh
    source $HOME/.local/bin/env  # Add to your shell profile for persistence
@@ -59,6 +59,7 @@ cd cadence-python-client
 Run the generation script:
 ```bash
 # Using uv (recommended)
+uv sync --extra dev
 uv run python scripts/generate_proto.py
 
 # Or using traditional Python
diff --git a/cadence/api/__init__.py b/cadence/api/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/cadence/api/v1/__init__.py b/cadence/api/v1/__init__.py
index a243798..700288a 100644
--- a/cadence/api/v1/__init__.py
+++ b/cadence/api/v1/__init__.py
@@ -1,92 +1,92 @@
 # Auto-generated __init__.py file
-# Import all generated protobuf and gRPC modules
+# Import all generated protobuf modules
 from . import common_pb2
-from . import decision_pb2
-from . import domain_pb2
-from . import error_pb2
-from . import history_pb2
-from . import query_pb2
-from . import service_domain_pb2
-from . import service_meta_pb2
-from . import service_visibility_pb2
-from . import service_worker_pb2
-from . import service_workflow_pb2
-from . import tasklist_pb2
-from . import visibility_pb2
-from . import workflow_pb2
 from . import common_pb2_grpc
+from . import decision_pb2
 from . import decision_pb2_grpc
+from . import domain_pb2
 from . import domain_pb2_grpc
+from . import error_pb2
 from . import error_pb2_grpc
+from . import history_pb2
 from . import history_pb2_grpc
+from . import query_pb2
 from . import query_pb2_grpc
+from . import service_domain_pb2
 from . import service_domain_pb2_grpc
+from . import service_meta_pb2
 from . import service_meta_pb2_grpc
+from . import service_visibility_pb2
 from . import service_visibility_pb2_grpc
+from . import service_worker_pb2
 from . import service_worker_pb2_grpc
+from . import service_workflow_pb2
 from . import service_workflow_pb2_grpc
+from . import tasklist_pb2
 from . import tasklist_pb2_grpc
+from . import visibility_pb2
 from . import visibility_pb2_grpc
+from . import workflow_pb2
 from . import workflow_pb2_grpc
 
 # Create cleaner aliases for easier imports
 common = common_pb2
-decision = decision_pb2
-domain = domain_pb2
-error = error_pb2
-history = history_pb2
-query = query_pb2
-service_domain = service_domain_pb2
-service_meta = service_meta_pb2
-service_visibility = service_visibility_pb2
-service_worker = service_worker_pb2
-service_workflow = service_workflow_pb2
-tasklist = tasklist_pb2
-visibility = visibility_pb2
-workflow = workflow_pb2
 common_grpc = common_pb2_grpc
+decision = decision_pb2
 decision_grpc = decision_pb2_grpc
+domain = domain_pb2
 domain_grpc = domain_pb2_grpc
+error = error_pb2
 error_grpc = error_pb2_grpc
+history = history_pb2
 history_grpc = history_pb2_grpc
+query = query_pb2
 query_grpc = query_pb2_grpc
+service_domain = service_domain_pb2
 service_domain_grpc = service_domain_pb2_grpc
+service_meta = service_meta_pb2
 service_meta_grpc = service_meta_pb2_grpc
+service_visibility = service_visibility_pb2
 service_visibility_grpc = service_visibility_pb2_grpc
+service_worker = service_worker_pb2
 service_worker_grpc = service_worker_pb2_grpc
+service_workflow = service_workflow_pb2
 service_workflow_grpc = service_workflow_pb2_grpc
+tasklist = tasklist_pb2
 tasklist_grpc = tasklist_pb2_grpc
+visibility = visibility_pb2
 visibility_grpc = visibility_pb2_grpc
+workflow = workflow_pb2
 workflow_grpc = workflow_pb2_grpc
 
-# Only expose clean module names
+# Only expose clean module names (no _pb2)
 __all__ = [
     'common',
-    'decision',
-    'domain',
-    'error',
-    'history',
-    'query',
-    'service_domain',
-    'service_meta',
-    'service_visibility',
-    'service_worker',
-    'service_workflow',
-    'tasklist',
-    'visibility',
-    'workflow',
     'common_grpc',
+    'decision',
     'decision_grpc',
+    'domain',
     'domain_grpc',
+    'error',
     'error_grpc',
+    'history',
     'history_grpc',
+    'query',
     'query_grpc',
+    'service_domain',
     'service_domain_grpc',
+    'service_meta',
     'service_meta_grpc',
+    'service_visibility',
     'service_visibility_grpc',
+    'service_worker',
     'service_worker_grpc',
+    'service_workflow',
     'service_workflow_grpc',
+    'tasklist',
     'tasklist_grpc',
+    'visibility',
     'visibility_grpc',
+    'workflow',
     'workflow_grpc',
 ]
diff --git a/cadence/api/v1/common_pb2.py b/cadence/api/v1/common_pb2.py
index 03f7e46..b7e3f12 100644
--- a/cadence/api/v1/common_pb2.py
+++ b/cadence/api/v1/common_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/common.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/common.proto'
 )
diff --git a/cadence/api/v1/decision_pb2.py b/cadence/api/v1/decision_pb2.py
index 3e8f815..36a1bf0 100644
--- a/cadence/api/v1/decision_pb2.py
+++ b/cadence/api/v1/decision_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/decision.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/decision.proto'
 )
diff --git a/cadence/api/v1/domain_pb2.py b/cadence/api/v1/domain_pb2.py
index 811282a..bc73e08 100644
--- a/cadence/api/v1/domain_pb2.py
+++ b/cadence/api/v1/domain_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/domain.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/domain.proto'
 )
diff --git a/cadence/api/v1/error_pb2.py b/cadence/api/v1/error_pb2.py
index e915ea0..09fdd1c 100644
--- a/cadence/api/v1/error_pb2.py
+++ b/cadence/api/v1/error_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/error.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/error.proto'
 )
diff --git a/cadence/api/v1/history_pb2.py b/cadence/api/v1/history_pb2.py
index 1c61ab4..e1427ea 100644
--- a/cadence/api/v1/history_pb2.py
+++ b/cadence/api/v1/history_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/history.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/history.proto'
 )
diff --git a/cadence/api/v1/query_pb2.py b/cadence/api/v1/query_pb2.py
index 34d36ba..8d492e0 100644
--- a/cadence/api/v1/query_pb2.py
+++ b/cadence/api/v1/query_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/query.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/query.proto'
 )
diff --git a/cadence/api/v1/service_domain_pb2.py b/cadence/api/v1/service_domain_pb2.py
index 6262755..50679a4 100644
--- a/cadence/api/v1/service_domain_pb2.py
+++ b/cadence/api/v1/service_domain_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/service_domain.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/service_domain.proto'
 )
diff --git a/cadence/api/v1/service_meta_pb2.py b/cadence/api/v1/service_meta_pb2.py
index 4229a74..2103aff 100644
--- a/cadence/api/v1/service_meta_pb2.py
+++ b/cadence/api/v1/service_meta_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/service_meta.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/service_meta.proto'
 )
diff --git a/cadence/api/v1/service_visibility_pb2.py b/cadence/api/v1/service_visibility_pb2.py
index ad18302..828a23d 100644
--- a/cadence/api/v1/service_visibility_pb2.py
+++ b/cadence/api/v1/service_visibility_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/service_visibility.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/service_visibility.proto'
 )
diff --git a/cadence/api/v1/service_worker_pb2.py b/cadence/api/v1/service_worker_pb2.py
index 1fe34a3..106300b 100644
--- a/cadence/api/v1/service_worker_pb2.py
+++ b/cadence/api/v1/service_worker_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/service_worker.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/service_worker.proto'
 )
diff --git a/cadence/api/v1/service_workflow_pb2.py b/cadence/api/v1/service_workflow_pb2.py
index a6bc922..6b4d026 100644
--- a/cadence/api/v1/service_workflow_pb2.py
+++ b/cadence/api/v1/service_workflow_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/service_workflow.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/service_workflow.proto'
 )
diff --git a/cadence/api/v1/tasklist_pb2.py b/cadence/api/v1/tasklist_pb2.py
index e4c5051..96db2a5 100644
--- a/cadence/api/v1/tasklist_pb2.py
+++ b/cadence/api/v1/tasklist_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/tasklist.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/tasklist.proto'
 )
diff --git a/cadence/api/v1/visibility_pb2.py b/cadence/api/v1/visibility_pb2.py
index 2f92971..7fba6d8 100644
--- a/cadence/api/v1/visibility_pb2.py
+++ b/cadence/api/v1/visibility_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/visibility.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/visibility.proto'
 )
diff --git a/cadence/api/v1/workflow_pb2.py b/cadence/api/v1/workflow_pb2.py
index 8a55a8b..9794605 100644
--- a/cadence/api/v1/workflow_pb2.py
+++ b/cadence/api/v1/workflow_pb2.py
@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: cadence/api/v1/workflow.proto
-# Protobuf Python Version: 5.29.1
+# Protobuf Python Version: 5.29.0
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -13,7 +13,7 @@
     _runtime_version.Domain.PUBLIC,
     5,
     29,
-    1,
+    0,
     '',
     'cadence/api/v1/workflow.proto'
 )
diff --git a/pyproject.toml b/pyproject.toml
index c154d3e..de3ecc2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,8 +26,7 @@ classifiers = [
 ]
 requires-python = ">=3.11,<3.14"
 dependencies = [
-    "grpcio>=1.50.0",
-    "grpcio-tools>=1.50.0",
+    "grpcio==1.71.2",
     "msgspec>=0.19.0",
     "protobuf==5.29.1",
     "typing-extensions>=4.0.0",
@@ -35,6 +34,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
+    "grpcio-tools==1.71.2",
     "pytest>=8.4.1",
     "pytest-cov>=4.0.0",
     "pytest-asyncio>=0.21.0",
diff --git a/scripts/generate_proto.py b/scripts/generate_proto.py
index 096392e..e50efd5 100644
--- a/scripts/generate_proto.py
+++ b/scripts/generate_proto.py
@@ -6,203 +6,29 @@
 
 import subprocess
 import sys
-import os
 from pathlib import Path
 import shutil
-import platform
-import urllib.request
-import zipfile
+import runpy
 
-
-def check_grpc_tools():
-    """Check if grpc_tools is installed, install if not."""
-    try:
-        print("✓ grpc_tools is already installed")
-        return True
-    except ImportError:
-        print("Installing grpc_tools...")
-        try:
-            subprocess.run(["uv", "pip", "install", "grpcio-tools"],
-                         check=True, capture_output=True, text=True)
-            print("✓ grpc_tools installed successfully")
-            return True
-        except subprocess.CalledProcessError as e:
-            print(f"✗ Failed to install grpc_tools: {e}")
-            return False
-
-
-def find_grpc_python_plugin():
-    """Find the grpc_python_plugin binary."""
-    try:
-        # Try to find it in the current Python environment using uv
-        result = subprocess.run(["uv", "run", "python", "-m", "grpc_tools.protoc", "--help"],
-                              capture_output=True, text=True, timeout=5)
-        if result.returncode == 0:
-            # The plugin is available through grpc_tools.protoc
-            return "grpc_tools.protoc"
-    except (subprocess.TimeoutExpired, FileNotFoundError):
-        pass
-
-    # Try to find it as a standalone binary
+def get_project_root() -> Path:
     try:
-        result = subprocess.run(["grpc_python_plugin", "--help"],
-                              capture_output=True, text=True, timeout=5)
-        if result.returncode == 0:
-            return "grpc_python_plugin"
-    except (subprocess.TimeoutExpired, FileNotFoundError):
-        pass
-
-    return None
-
-
-def download_protoc_29_1(project_root: Path) -> str:
-    """Download protoc 29.1 from GitHub releases to .bin directory like the cadence-idl Makefile."""
-    bin_dir = project_root / ".bin"
-    bin_dir.mkdir(exist_ok=True)
-
-    # Determine OS and architecture
-    os_name = platform.system().lower()
-    arch = platform.machine().lower()
-
-    # Normalize architecture names for protobuf releases (like the Makefile)
-    if arch in ['arm64', 'aarch64']:
-        arch = 'aarch_64'
-    elif arch == 'x86_64':
-        arch = 'x86_64'
-
-    # Normalize OS names
-    if os_name == 'darwin':
-        os_name = 'osx'
-    elif os_name == 'linux':
-        os_name = 'linux'
-    elif os_name == 'windows':
-        os_name = 'windows'
-
-    protoc_version = "29.1"
-    protoc_bin = bin_dir / f"protoc-{protoc_version}"
-
-    # Check if already downloaded
-    if protoc_bin.exists():
-        try:
-            result = subprocess.run([str(protoc_bin), "--version"],
-                                  capture_output=True, text=True, timeout=5)
-            if result.returncode == 0 and "29.1" in result.stdout:
-                print(f"Using existing .bin protoc 29.1: {result.stdout.strip()}")
-                return str(protoc_bin)
-        except (subprocess.TimeoutExpired, FileNotFoundError, PermissionError):
-            pass
-
-    # Download URL (same as Makefile)
-    url = f"https://github.com/protocolbuffers/protobuf/releases/download/v{protoc_version}/protoc-{protoc_version}-{os_name}-{arch}.zip"
-    zip_path = bin_dir / "protoc.zip"
-    unzip_dir = bin_dir / f"protoc-{protoc_version}-zip"
-
-    print(f"Downloading protoc {protoc_version} to .bin directory from {url}")
-
-    try:
-        # Download
-        urllib.request.urlretrieve(url, zip_path)
-
-        # Clean up any existing unzip directory
-        if unzip_dir.exists():
-            shutil.rmtree(unzip_dir)
-
-        # Unzip
-        with zipfile.ZipFile(zip_path, 'r') as zip_ref:
-            zip_ref.extractall(unzip_dir)
-
-        # Copy protoc binary to standard location
-        source_protoc = unzip_dir / "bin" / "protoc"
-        if source_protoc.exists():
-            shutil.copy2(source_protoc, protoc_bin)
-            protoc_bin.chmod(0o755)  # Make executable
-
-            # Also copy the include directory with Google protobuf standard library files
-            source_include = unzip_dir / "include"
-            if source_include.exists():
-                target_include = project_root / ".bin" / "include"
-                if target_include.exists():
-                    shutil.rmtree(target_include)
-                shutil.copytree(source_include, target_include)
-                print(f"✓ Copied protobuf include files to {target_include}")
-
-            # Clean up
-            shutil.rmtree(unzip_dir)
-            zip_path.unlink()
-
-            print(f"Successfully downloaded and installed protoc {protoc_version} to .bin directory")
-            return str(protoc_bin)
-        else:
-            raise FileNotFoundError(f"protoc binary not found in {source_protoc}")
-
-    except Exception as e:
-        print(f"Failed to download protoc 29.1: {e}")
-        # Clean up on failure
-        if zip_path.exists():
-            zip_path.unlink()
-        if unzip_dir.exists():
-            shutil.rmtree(unzip_dir)
-        raise
-
-
-def find_protoc() -> str:
-    """Find the protoc binary, preferring .bin/protoc-29.1, then download it if not available."""
-    script_dir = Path(__file__).parent
-    project_root = script_dir.parent
-
-    # First, check for protoc-29.1 in .bin directory (preferred)
-    bin_protoc = project_root / ".bin" / "protoc-29.1"
-    if bin_protoc.exists():
-        try:
-            result = subprocess.run([str(bin_protoc), "--version"],
-                                  capture_output=True, text=True, timeout=5)
-            if result.returncode == 0 and "29.1" in result.stdout:
-                print(f"Using .bin protoc-29.1: {result.stdout.strip()}")
-                return str(bin_protoc)
-        except (subprocess.TimeoutExpired, FileNotFoundError, PermissionError) as e:
-            print(f"Warning: .bin protoc-29.1 failed: {e}")
-
-    # Download protoc 29.1 to .bin directory if not available
-    try:
-        protoc_29_1_path = download_protoc_29_1(project_root)
-        return protoc_29_1_path
-    except Exception as e:
-        print(f"Error: Could not download protoc 29.1: {e}")
-        raise RuntimeError(
-            f"Failed to download protoc 29.1 to .bin directory: {e}\n"
-            "Please check your internet connection and try again."
+        return Path(
+            subprocess.check_output(
+                ["git", "rev-parse", "--show-toplevel"], text=True
+            ).strip()
         )
-
-
-def find_proto_files(proto_dir: Path) -> list[Path]:
-    """Find all .proto files in the given directory, excluding admin files."""
-    proto_files = []
-    for proto_file in proto_dir.rglob("*.proto"):
-        # Skip admin proto files
-        if "admin" in str(proto_file):
-            continue
-        proto_files.append(proto_file)
-    return sorted(proto_files)
-
-
-def create_init_files(output_dir: Path) -> None:
-    """Create __init__.py files for all subdirectories."""
-    for subdir in output_dir.rglob("*"):
-        if subdir.is_dir():
-            init_file = subdir / "__init__.py"
-            if not init_file.exists():
-                init_file.touch()
-                print(f"  ✓ Created {init_file}")
-
+    except Exception as e:
+        raise RuntimeError("Error: Could not determine project root from git:", e)
 
 def generate_init_file(output_dir: Path) -> None:
     """Generate the __init__.py file for cadence/api/v1 with clean imports."""
-    v1_dir = output_dir / "api" / "v1"
+    v1_dir = output_dir / "cadence" / "api" / "v1"
     init_file = v1_dir / "__init__.py"
+    init_file.touch()
 
     # Find all _pb2.py files in the v1 directory
     pb2_files = []
-    for file in v1_dir.glob("*_pb2.py"):
+    for file in v1_dir.glob("*_pb2*.py"):
         module_name = file.stem  # e.g., "common_pb2" -> "common_pb2"
         clean_name = module_name.replace("_pb2", "")  # e.g., "common_pb2" -> "common"
         pb2_files.append((module_name, clean_name))
@@ -239,118 +65,18 @@ def generate_init_file(output_dir: Path) -> None:
 
     print(f"  ✓ Generated {init_file} with {len(pb2_files)} modules")
 
-
-def find_protobuf_include(project_root: Path) -> str:
-    """Find the protobuf include directory, preferring downloaded protoc 29.1, then system installations."""
-    # First, check if we have downloaded protoc 29.1 and use its include directory
-    protoc_29_1_bin = project_root / ".bin" / "protoc-29.1"
-    if protoc_29_1_bin.exists():
-        # The downloaded protoc includes the well-known types in the zip
-        # Check for the include directory in .bin first
-        bin_include = project_root / ".bin" / "include"
-        if bin_include.exists():
-            print(f"Using .bin protobuf include directory: {bin_include}")
-            return str(bin_include)
-
-        # Fallback to local include directory
-        local_include = project_root / "include"
-        if local_include.exists():
-            print(f"Using local include directory: {local_include}")
-            return str(local_include)
-
-    # Check if we're on macOS (using brew)
-    if platform.system().lower() == 'darwin':
-        try:
-            # Try to find main brew protobuf installation (version 29.3)
-            result = subprocess.run(["brew", "--prefix", "protobuf"],
-                                  capture_output=True, text=True, timeout=5)
-            if result.returncode == 0:
-                brew_prefix = result.stdout.strip()
-                include_path = f"{brew_prefix}/include"
-                if os.path.exists(include_path):
-                    print(f"Using main protobuf include: {include_path}")
-                    return include_path
-        except (subprocess.TimeoutExpired, FileNotFoundError):
-            pass
-
-        # Check protobuf@29 second (version 29.4)
-        protobuf_29_include = "/opt/homebrew/opt/protobuf@29/include"
-        if os.path.exists(protobuf_29_include):
-            print(f"Using protobuf@29 include: {protobuf_29_include}")
-            return protobuf_29_include
-
-        # Fallback to common brew location
-        common_paths = [
-            "/opt/homebrew/include",
-            "/usr/local/include",
-            "/opt/homebrew/Cellar/protobuf/*/include"
-        ]
-
-        for path_pattern in common_paths:
-            if "*" in path_pattern:
-                # Handle wildcard pattern
-                import glob
-                matches = glob.glob(path_pattern)
-                if matches:
-                    # Use the latest version
-                    latest = sorted(matches)[-1]
-                    if os.path.exists(latest):
-                        print(f"Using brew protobuf include: {latest}")
-                        return latest
-            else:
-                if os.path.exists(path_pattern):
-                    print(f"Using brew protobuf include: {path_pattern}")
-                    return path_pattern
-
-    # Linux paths
-    elif platform.system().lower() == 'linux':
-        # Common Linux protobuf include paths
-        linux_paths = [
-            "/usr/include",
-            "/usr/local/include",
-            "/opt/protobuf/include",
-            "/usr/share/protobuf/include"
-        ]
-
-        for path in linux_paths:
-            if os.path.exists(path):
-                print(f"Using Linux protobuf include: {path}")
-                return path
-
-    return None
-
-
 def setup_temp_proto_structure(proto_dir: Path, temp_dir: Path) -> None:
     """Create a temporary directory with proto files in the proper structure for cadence.api.v1 imports."""
     print("Setting up temporary proto structure...")
 
-    # Find all proto files (excluding admin)
-    proto_files = find_proto_files(proto_dir)
-
-    if not proto_files:
-        print("No .proto files found!")
-        return
-
-    print(f"Found {len(proto_files)} .proto files (excluding admin):")
-    for proto_file in proto_files:
-        print(f"  - {proto_file}")
+    proto_file_dir = proto_dir / "uber" / "cadence" / "api" / "v1"
+    output_dir = temp_dir / "cadence" / "api" / "v1"
 
-    # Copy proto files to temp directory with proper structure
-    for proto_file in proto_files:
-        # Get relative path from proto directory
-        rel_path = proto_file.relative_to(proto_dir)
-
-        # Create target path in temp directory
-        # We want to transform: uber/cadence/api/v1/file.proto -> cadence/api/v1/file.proto
-        parts = list(rel_path.parts)
-
-        # Remove 'uber' from the path to get cadence.api.v1 structure
-        if parts[0] == 'uber':
-            parts = parts[1:]  # Remove 'uber'
-
-        target_path = temp_dir / Path(*parts)
-        target_path.parent.mkdir(parents=True, exist_ok=True)
+    # Create the cadence/api/v1 directory structure in temp_dir
+    output_dir.mkdir(parents=True, exist_ok=True)
 
+    # Copy all proto files from proto_dir to temp_dir
+    for proto_file in proto_file_dir.glob("*.proto"):
         # Copy the proto file and update import statements
         with open(proto_file, 'r') as src_file:
             content = src_file.read()
@@ -360,249 +86,63 @@ def setup_temp_proto_structure(proto_dir: Path, temp_dir: Path) -> None:
         updated_content = content.replace('import "uber/cadence/api/v1/', 'import "cadence/api/v1/')
 
         # Write the updated content to the target file
-        with open(target_path, 'w') as dst_file:
+        with open(output_dir / proto_file.name, 'w') as dst_file:
             dst_file.write(updated_content)
 
-        print(f"  ✓ Copied and updated {rel_path} -> {target_path}")
+        print(f"  ✓ Copied and updated {proto_file.name}")
 
+def delete_temp_dir(temp_dir: Path):
+    if temp_dir.exists():
+        shutil.rmtree(temp_dir)
+        print(f"Deleted temp directory: {temp_dir}")
 
-def generate_protobuf_files(temp_proto_dir: Path, output_dir: Path, project_root: Path) -> None:
-    """Generate Python protobuf files and gRPC code from .proto files in temp directory."""
-    proto_files = list(temp_proto_dir.rglob("*.proto"))
+def generate_protobuf_files(temp_dir: Path, gen_dir: Path) -> None:
+    # Find all .proto files in the cadence/api/v1 directory
+    proto_files = list((temp_dir / "cadence/api/v1").glob("*.proto"))
 
     if not proto_files:
-        print("No .proto files found in temp directory!")
-        return
+        print("No .proto files found in temp_dir/cadence/api/v1/")
+        delete_temp_dir(temp_dir)
+        sys.exit(1)
 
-    print(f"Generating Python files from {len(proto_files)} .proto files...")
+    # Convert Path objects to strings for sys.argv
+    proto_file_paths = [str(f) for f in proto_files]
 
-    # Create output directory if it doesn't exist
-    output_dir.mkdir(parents=True, exist_ok=True)
+    # Save original argv and set up new argv for grpc_tools.protoc
+    original_argv = sys.argv
+    sys.argv = [
+        "grpc_tools.protoc",
+        "--proto_path", str(temp_dir),
+        "--python_out", str(gen_dir),
+        "--pyi_out", str(gen_dir),
+        "--grpc_python_out", str(gen_dir)
+    ] + proto_file_paths
 
-    # Find protoc binary - always use the downloaded protoc 29.1
-    protoc_path = find_protoc()
-    print(f"Using protoc: {protoc_path}")
-
-    # Check for gRPC tools
-    if not check_grpc_tools():
-        print("Warning: grpc_tools not available, skipping gRPC code generation")
-        grpc_plugin = None
-    else:
-        grpc_plugin = find_grpc_python_plugin()
-        if grpc_plugin:
-            print(f"✓ Found gRPC plugin: {grpc_plugin}")
+    try:
+        runpy.run_module("grpc_tools.protoc", run_name="__main__", alter_sys=True)
+        print(f"Successfully generated protobuf files using runpy for {len(proto_files)} files")
+    except SystemExit as e:
+        if e.code == 0:
+            print(f"Successfully generated protobuf files using runpy for {len(proto_files)} files")
         else:
-            print("Warning: grpc_python_plugin not found, skipping gRPC code generation")
-
-    # Generate Python files for each proto file
-    for proto_file in proto_files:
-        # Get relative path from temp proto directory
-        rel_path = proto_file.relative_to(temp_proto_dir)
-
-        # Build command with appropriate include paths
-        cmd = [
-            protoc_path,
-            f"--python_out={output_dir}",
-            f"--pyi_out={output_dir}",
-            f"--proto_path={temp_proto_dir}",
-        ]
-
-        cmd.append(f"--proto_path={project_root}/include")
-
-        cmd.append(str(proto_file))
-
-        try:
-            subprocess.run(cmd, check=True, capture_output=True, text=True)
-            print(f"  ✓ Generated .py and .pyi files for {rel_path}")
-        except subprocess.CalledProcessError as e:
-            print(f"  ✗ Failed to generate .py and .pyi files for {rel_path}: {e}")
-            print(f"  stderr: {e.stderr}")
-            continue
-
-        # Add gRPC generation if plugin is available
-        if grpc_plugin and grpc_plugin == "grpc_tools.protoc":
-            # For grpc_tools.protoc, only generate gRPC files (not _pb2.py)
-            grpc_cmd = [
-                "uv", "run", "python", "-m", "grpc_tools.protoc",
-                f"--grpc_python_out={output_dir}",
-                f"--proto_path={temp_proto_dir}",
-            ]
-
-            grpc_cmd.append(f"--proto_path={project_root}/include")
-
-            grpc_cmd.append(str(proto_file))
-
-            try:
-                subprocess.run(grpc_cmd, check=True, capture_output=True, text=True)
-                print(f"  ✓ Generated gRPC files for {rel_path}")
-            except subprocess.CalledProcessError as e:
-                print(f"  ✗ Failed to generate gRPC files for {rel_path}: {e}")
-                print(f"  stderr: {e.stderr}")
-
-        elif grpc_plugin and grpc_plugin != "grpc_tools.protoc":
-            # Use standalone protoc with grpc_python_plugin
-            grpc_cmd = [
-                protoc_path,
-                f"--grpc_python_out={output_dir}",
-                f"--proto_path={temp_proto_dir}",
-            ]
-
-            grpc_cmd.append(f"--proto_path={project_root}/include")
-
-            grpc_cmd.append(str(proto_file))
-
-            try:
-                subprocess.run(grpc_cmd, check=True, capture_output=True, text=True)
-                print(f"  ✓ Generated gRPC files for {rel_path}")
-            except subprocess.CalledProcessError as e:
-                print(f"  ✗ Failed to generate gRPC files for {rel_path}: {e}")
-                print(f"  stderr: {e.stderr}")
-
-    # Move files from nested structure to correct structure
-    print("Moving files to correct structure...")
-    nested_cadence_dir = output_dir / "cadence"
-    if nested_cadence_dir.exists():
-        # Move all contents from cadence/cadence/api/v1/ to cadence/api/v1/
-        nested_api_dir = nested_cadence_dir / "api"
-        if nested_api_dir.exists():
-            target_api_dir = output_dir / "api"
-            target_api_dir.mkdir(parents=True, exist_ok=True)
-
-            # Move api/v1 directory
-            nested_v1_dir = nested_api_dir / "v1"
-            target_v1_dir = target_api_dir / "v1"
-
-            if nested_v1_dir.exists():
-                # Remove target if it exists
-                if target_v1_dir.exists():
-                    shutil.rmtree(target_v1_dir)
-
-                # Move the v1 directory
-                shutil.move(str(nested_v1_dir), str(target_v1_dir))
-                print("  ✓ Moved api/v1 directory to correct location")
-
-            # Move api/__init__.py if it exists
-            nested_init = nested_api_dir / "__init__.py"
-            target_init = target_api_dir / "__init__.py"
-            if nested_init.exists():
-                shutil.move(str(nested_init), str(target_init))
-                print("  ✓ Moved api/__init__.py to correct location")
-
-            # Remove the nested cadence directory
-            shutil.rmtree(nested_cadence_dir)
-            print("  ✓ Cleaned up nested cadence directory")
-
-
-def generate_grpc_init_file(output_dir: Path) -> None:
-    """Generate the __init__.py file for cadence/api/v1 with gRPC imports."""
-    v1_dir = output_dir / "api" / "v1"
-    init_file = v1_dir / "__init__.py"
-
-    # Find all _pb2.py and _pb2_grpc.py files in the v1 directory
-    pb2_files = []
-    grpc_files = []
-
-    for file in v1_dir.glob("*_pb2.py"):
-        module_name = file.stem  # e.g., "common_pb2" -> "common_pb2"
-        clean_name = module_name.replace("_pb2", "")  # e.g., "common_pb2" -> "common"
-        pb2_files.append((module_name, clean_name))
-
-    for file in v1_dir.glob("*_pb2_grpc.py"):
-        module_name = file.stem  # e.g., "service_workflow_pb2_grpc" -> "service_workflow_pb2_grpc"
-        clean_name = module_name.replace("_pb2_grpc", "_grpc")  # e.g., "service_workflow_pb2_grpc" -> "service_workflow_grpc"
-        grpc_files.append((module_name, clean_name))
-
-    # Sort for consistent ordering
-    pb2_files.sort()
-    grpc_files.sort()
-
-    # Generate the __init__.py content
-    content = "# Auto-generated __init__.py file\n"
-    content += "# Import all generated protobuf and gRPC modules\n"
-
-    # Add protobuf imports
-    for module_name, clean_name in pb2_files:
-        content += f"from . import {module_name}\n"
-
-    # Add gRPC imports
-    for module_name, clean_name in grpc_files:
-        content += f"from . import {module_name}\n"
-
-    content += "\n# Create cleaner aliases for easier imports\n"
-
-    # Add protobuf aliases
-    for module_name, clean_name in pb2_files:
-        content += f"{clean_name} = {module_name}\n"
-
-    # Add gRPC aliases
-    for module_name, clean_name in grpc_files:
-        content += f"{clean_name} = {module_name}\n"
-
-    content += "\n# Only expose clean module names\n"
-    content += "__all__ = [\n"
-
-    # Add __all__ list
-    for module_name, clean_name in pb2_files:
-        content += f"    '{clean_name}',\n"
-    for module_name, clean_name in grpc_files:
-        content += f"    '{clean_name}',\n"
-
-    content += "]\n"
-
-    # Write the file
-    with open(init_file, 'w') as f:
-        f.write(content)
-
-    print(f"  ✓ Generated {init_file} with {len(pb2_files)} protobuf and {len(grpc_files)} gRPC modules")
-
+            print("Error running grpc_tools.protoc via runpy {}", e)
+            raise e
+    finally:
+        # Restore original argv
+        sys.argv = original_argv
 
 def main():
-    """Main function."""
-    # Get the script directory
-    script_dir = Path(__file__).parent
-    project_root = script_dir.parent
+    project_root = get_project_root()
 
-    # Define paths
     proto_dir = project_root / "idls" / "proto"
-    output_dir = project_root / "cadence"  # This will be the cadence folder directly
     temp_dir = project_root / ".temp_proto"
+    gen_dir = project_root
 
-    print(f"Proto directory: {proto_dir}")
-    print(f"Output directory: {output_dir}")
-    print(f"Temp directory: {temp_dir}")
-
-    # Check if proto directory exists
-    if not proto_dir.exists():
-        print(f"Error: Proto directory not found: {proto_dir}")
-        sys.exit(1)
-
-    # Clean up temp directory if it exists
-    if temp_dir.exists():
-        shutil.rmtree(temp_dir)
-
-    try:
-        # Step 1: Create temp directory and copy proto files in proper structure
-        temp_dir.mkdir(exist_ok=True)
-        setup_temp_proto_structure(proto_dir, temp_dir)
-
-        # Step 2: Generate Python files in the cadence directory
-        generate_protobuf_files(temp_dir, output_dir, project_root)
-
-        # Step 3: Create __init__.py files for all generated directories
-        create_init_files(output_dir)
-        generate_grpc_init_file(output_dir)
-
-        print(f"\nProtobuf and gRPC generation complete. Files generated in {output_dir}")
-        print("Files can now be imported as:")
-        print("  - cadence.api.v1.workflow (protobuf messages)")
-        print("  - cadence.api.v1.service_workflow_grpc (gRPC services)")
-
-    finally:
-        # Step 4: Clean up temp directory
-        if temp_dir.exists():
-            shutil.rmtree(temp_dir)
-            print(f"Cleaned up temp directory: {temp_dir}")
+    setup_temp_proto_structure(proto_dir, temp_dir)
 
+    generate_protobuf_files(temp_dir, gen_dir)
+    generate_init_file(gen_dir)
+    delete_temp_dir(temp_dir)
 
 if __name__ == "__main__":
     main()
diff --git a/uv.lock b/uv.lock
index fe3f9e0..cf85812 100644
--- a/uv.lock
+++ b/uv.lock
@@ -153,7 +153,6 @@ version = "0.1.0"
 source = { editable = "." }
 dependencies = [
     { name = "grpcio" },
-    { name = "grpcio-tools" },
     { name = "msgspec" },
     { name = "protobuf" },
     { name = "typing-extensions" },
@@ -163,6 +162,7 @@ dependencies = [
 dev = [
     { name = "black" },
     { name = "flake8" },
+    { name = "grpcio-tools" },
     { name = "isort" },
     { name = "mypy" },
     { name = "pre-commit" },
@@ -185,8 +185,8 @@ requires-dist = [
     { name = "aiohttp", marker = "extra == 'examples'", specifier = ">=3.8.0" },
     { name = "black", marker = "extra == 'dev'", specifier = ">=23.0.0" },
     { name = "flake8", marker = "extra == 'dev'", specifier = ">=6.0.0" },
-    { name = "grpcio", specifier = ">=1.50.0" },
-    { name = "grpcio-tools", specifier = ">=1.50.0" },
+    { name = "grpcio", specifier = "==1.71.2" },
+    { name = "grpcio-tools", marker = "extra == 'dev'", specifier = "==1.71.2" },
     { name = "isort", marker = "extra == 'dev'", specifier = ">=5.12.0" },
     { name = "msgspec", specifier = ">=0.19.0" },
     { name = "mypy", marker = "extra == 'dev'", specifier = ">=1.0.0" },
@@ -468,40 +468,40 @@ wheels = [
 
 [[package]]
 name = "grpcio"
-version = "1.74.0"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/38/b4/35feb8f7cab7239c5b94bd2db71abb3d6adb5f335ad8f131abb6060840b6/grpcio-1.74.0.tar.gz", hash = "sha256:80d1f4fbb35b0742d3e3d3bb654b7381cd5f015f8497279a1e9c21ba623e01b1", size = 12756048, upload-time = "2025-07-24T18:54:23.039Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/e7/77/b2f06db9f240a5abeddd23a0e49eae2b6ac54d85f0e5267784ce02269c3b/grpcio-1.74.0-cp311-cp311-linux_armv7l.whl", hash = "sha256:69e1a8180868a2576f02356565f16635b99088da7df3d45aaa7e24e73a054e31", size = 5487368, upload-time = "2025-07-24T18:53:03.548Z" },
-    { url = "https://files.pythonhosted.org/packages/48/99/0ac8678a819c28d9a370a663007581744a9f2a844e32f0fa95e1ddda5b9e/grpcio-1.74.0-cp311-cp311-macosx_11_0_universal2.whl", hash = "sha256:8efe72fde5500f47aca1ef59495cb59c885afe04ac89dd11d810f2de87d935d4", size = 10999804, upload-time = "2025-07-24T18:53:05.095Z" },
-    { url = "https://files.pythonhosted.org/packages/45/c6/a2d586300d9e14ad72e8dc211c7aecb45fe9846a51e558c5bca0c9102c7f/grpcio-1.74.0-cp311-cp311-manylinux_2_17_aarch64.whl", hash = "sha256:a8f0302f9ac4e9923f98d8e243939a6fb627cd048f5cd38595c97e38020dffce", size = 5987667, upload-time = "2025-07-24T18:53:07.157Z" },
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