diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d3e382e91..c00ea3040 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -19,14 +19,14 @@ repos:
 #    -   id: no-commit-to-branch
 #        args: ['--branch=main']
 
-# -   repo: https://github.com/Lucas-C/pre-commit-hooks
-#     rev: v1.5.4
-#     hooks:
-#     -   id: insert-license
-#         files: \.py$|\.sh$
-#         args:
-#         - --license-filepath
-#         - docs/license_header.txt
+-   repo: https://github.com/Lucas-C/pre-commit-hooks
+    rev: v1.5.4
+    hooks:
+    -   id: insert-license
+        files: \.py$|\.sh$
+        args:
+          - --license-filepath
+          - docs/license_header.txt
 
 -   repo: https://github.com/pycqa/flake8
     rev: 34cbf8ef3950f43d09b85e2e45c15ae5717dc37b
diff --git a/README.md b/README.md
index edf2dd054..cbba37408 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 This repo contains the API specifications for various parts of the Llama Stack.
-The Stack consists of toolchain-apis and agentic-apis. 
+The Stack consists of toolchain-apis and agentic-apis.
 
-The tool chain apis that are covered -- 
+The tool chain apis that are covered --
 - inference / batch inference
 - post training
 - reward model scoring
@@ -10,7 +10,7 @@ The tool chain apis that are covered --
 
 ## Running FP8
 
-You need `fbgemm-gpu` package which requires torch >= 2.4.0 (currently only in nightly, but releasing shortly...). 
+You need `fbgemm-gpu` package which requires torch >= 2.4.0 (currently only in nightly, but releasing shortly...).
 
 ```bash
 ENV=fp8_env
@@ -21,19 +21,19 @@ pip3 install -r fp8_requirements.txt
 ```
 
 
-### Generate OpenAPI specs 
+### Generate OpenAPI specs
 
-Set up virtual environment 
+Set up virtual environment
 
 ```
-python3 -m venv ~/.venv/toolchain/ 
+python3 -m venv ~/.venv/toolchain/
 source ~/.venv/toolchain/bin/activate
 
-with-proxy pip3 install -r requirements.txt 
+with-proxy pip3 install -r requirements.txt
 
 ```
 
-Run the generate.sh script 
+Run the generate.sh script
 
 ```
 cd source && sh generate.sh
diff --git a/docs/license_header.txt b/docs/license_header.txt
new file mode 100644
index 000000000..6b16f56db
--- /dev/null
+++ b/docs/license_header.txt
@@ -0,0 +1,5 @@
+Copyright (c) Meta Platforms, Inc. and affiliates.
+All rights reserved.
+
+This source code is licensed under the terms described found in the
+LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/__init__.py b/llama_toolchain/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/__init__.py
+++ b/llama_toolchain/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/cli/__init__.py b/llama_toolchain/cli/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/cli/__init__.py
+++ b/llama_toolchain/cli/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/cli/download.py b/llama_toolchain/cli/download.py
index ba5262c59..d96754c50 100644
--- a/llama_toolchain/cli/download.py
+++ b/llama_toolchain/cli/download.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import argparse
 import os
 import textwrap
diff --git a/llama_toolchain/cli/inference/__init__.py b/llama_toolchain/cli/inference/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/cli/inference/__init__.py
+++ b/llama_toolchain/cli/inference/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/cli/inference/configure.py b/llama_toolchain/cli/inference/configure.py
index 5d2596315..96ddad6ba 100644
--- a/llama_toolchain/cli/inference/configure.py
+++ b/llama_toolchain/cli/inference/configure.py
@@ -1,10 +1,17 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import argparse
 import os
-import pkg_resources
 import textwrap
 
 from pathlib import Path
 
+import pkg_resources
+
 from llama_toolchain.cli.subcommand import Subcommand
 from llama_toolchain.utils import DEFAULT_DUMP_DIR
 
@@ -36,21 +43,22 @@ class InferenceConfigure(Subcommand):
         pass
 
     def read_user_inputs(self):
-        checkpoint_dir = input("Enter the checkpoint directory for the model (e.g., ~/.llama/checkpoints/Meta-Llama-3-8B/): ")
-        model_parallel_size = input("Enter model parallel size (e.g., 1 for 8B / 8 for 70B and 405B): ")
-        assert model_parallel_size.isdigit() and int(model_parallel_size) in {1, 8}, "model parallel size must be 1 or 8"
+        checkpoint_dir = input(
+            "Enter the checkpoint directory for the model (e.g., ~/.llama/checkpoints/Meta-Llama-3-8B/): "
+        )
+        model_parallel_size = input(
+            "Enter model parallel size (e.g., 1 for 8B / 8 for 70B and 405B): "
+        )
+        assert model_parallel_size.isdigit() and int(model_parallel_size) in {
+            1,
+            8,
+        }, "model parallel size must be 1 or 8"
 
         return checkpoint_dir, model_parallel_size
 
-    def write_output_yaml(
-        self,
-        checkpoint_dir,
-        model_parallel_size,
-        yaml_output_path
-    ):
+    def write_output_yaml(self, checkpoint_dir, model_parallel_size, yaml_output_path):
         default_conf_path = pkg_resources.resource_filename(
-            'llama_toolchain',
-            'data/default_inference_config.yaml'
+            "llama_toolchain", "data/default_inference_config.yaml"
         )
         with open(default_conf_path, "r") as f:
             yaml_content = f.read()
@@ -60,7 +68,7 @@ class InferenceConfigure(Subcommand):
             model_parallel_size=model_parallel_size,
         )
 
-        with open(yaml_output_path, 'w') as yaml_file:
+        with open(yaml_output_path, "w") as yaml_file:
             yaml_file.write(yaml_content.strip())
 
         print(f"YAML configuration has been written to {yaml_output_path}")
@@ -69,8 +77,9 @@ class InferenceConfigure(Subcommand):
         checkpoint_dir, model_parallel_size = self.read_user_inputs()
         checkpoint_dir = os.path.expanduser(checkpoint_dir)
 
-        assert Path(checkpoint_dir).exists() and Path(checkpoint_dir).is_dir(), \
-            f"{checkpoint_dir} does not exist or it not a directory"
+        assert (
+            Path(checkpoint_dir).exists() and Path(checkpoint_dir).is_dir()
+        ), f"{checkpoint_dir} does not exist or it not a directory"
 
         os.makedirs(CONFIGS_BASE_DIR, exist_ok=True)
         yaml_output_path = Path(CONFIGS_BASE_DIR) / "inference.yaml"
diff --git a/llama_toolchain/cli/inference/inference.py b/llama_toolchain/cli/inference/inference.py
index b83cd5da8..361d5e221 100644
--- a/llama_toolchain/cli/inference/inference.py
+++ b/llama_toolchain/cli/inference/inference.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import argparse
 import textwrap
 
diff --git a/llama_toolchain/cli/inference/start.py b/llama_toolchain/cli/inference/start.py
index f14d4b7be..c79541fc6 100644
--- a/llama_toolchain/cli/inference/start.py
+++ b/llama_toolchain/cli/inference/start.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import argparse
 import textwrap
 
@@ -40,10 +46,7 @@ class InferenceStart(Subcommand):
             default=False,
         )
         self.parser.add_argument(
-            "--config",
-            type=str,
-            help="Path to config file",
-            default="inference"
+            "--config", type=str, help="Path to config file", default="inference"
         )
 
     def _run_inference_start_cmd(self, args: argparse.Namespace) -> None:
diff --git a/llama_toolchain/cli/llama.py b/llama_toolchain/cli/llama.py
index 52a98cfe1..6b7c331e4 100644
--- a/llama_toolchain/cli/llama.py
+++ b/llama_toolchain/cli/llama.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import argparse
 
 from llama_toolchain.cli.download import Download
@@ -27,9 +33,8 @@ class LlamaCLIParser:
 
         # Import sub-commands from agentic_system if they exist
         try:
-            from llama_agentic_system.cli.subcommand_modules import (
-                SUBCOMMAND_MODULES,
-            )
+            from llama_agentic_system.cli.subcommand_modules import SUBCOMMAND_MODULES
+
             for module in SUBCOMMAND_MODULES:
                 module.create(subparsers)
 
diff --git a/llama_toolchain/cli/model/__init__.py b/llama_toolchain/cli/model/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/cli/model/__init__.py
+++ b/llama_toolchain/cli/model/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/cli/model/model.py b/llama_toolchain/cli/model/model.py
index 6f9e2a2b3..a424d5990 100644
--- a/llama_toolchain/cli/model/model.py
+++ b/llama_toolchain/cli/model/model.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import argparse
 import textwrap
 
diff --git a/llama_toolchain/cli/model/template.py b/llama_toolchain/cli/model/template.py
index 90f109184..dc9a28182 100644
--- a/llama_toolchain/cli/model/template.py
+++ b/llama_toolchain/cli/model/template.py
@@ -1,8 +1,18 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import argparse
 import textwrap
 
+from llama_models.llama3_1.api.interface import (
+    list_jinja_templates,
+    render_jinja_template,
+)
+
 from llama_toolchain.cli.subcommand import Subcommand
-from llama_models.llama3_1.api.interface import render_jinja_template, list_jinja_templates
 
 
 class ModelTemplate(Subcommand):
diff --git a/llama_toolchain/cli/subcommand.py b/llama_toolchain/cli/subcommand.py
index 10bb6667d..34fc500ec 100644
--- a/llama_toolchain/cli/subcommand.py
+++ b/llama_toolchain/cli/subcommand.py
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
+
 class Subcommand:
     """All llama cli subcommands must inherit from this class"""
 
diff --git a/llama_toolchain/common/__init__.py b/llama_toolchain/common/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/common/__init__.py
+++ b/llama_toolchain/common/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/common/deployment_types.py b/llama_toolchain/common/deployment_types.py
index 5abd7d991..24397bfe4 100644
--- a/llama_toolchain/common/deployment_types.py
+++ b/llama_toolchain/common/deployment_types.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import Enum
 from typing import Dict, Optional
 
diff --git a/llama_toolchain/common/training_types.py b/llama_toolchain/common/training_types.py
index c500bc91c..8b59b083f 100644
--- a/llama_toolchain/common/training_types.py
+++ b/llama_toolchain/common/training_types.py
@@ -1,5 +1,11 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from llama_models.llama3_1.api.datatypes import URL
-from pydantic import BaseModel 
+from pydantic import BaseModel
 
 
 class Checkpoint(BaseModel):
diff --git a/llama_toolchain/dataset/api/__init__.py b/llama_toolchain/dataset/api/__init__.py
index 38413ff60..4c8d401c4 100644
--- a/llama_toolchain/dataset/api/__init__.py
+++ b/llama_toolchain/dataset/api/__init__.py
@@ -1,2 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .datatypes import *  # noqa: F401 F403
 from .endpoints import *  # noqa: F401 F403
diff --git a/llama_toolchain/dataset/api/datatypes.py b/llama_toolchain/dataset/api/datatypes.py
index 260e68acb..63e8d1610 100644
--- a/llama_toolchain/dataset/api/datatypes.py
+++ b/llama_toolchain/dataset/api/datatypes.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import Enum
 from typing import Any, Dict, Optional
 
diff --git a/llama_toolchain/dataset/api/endpoints.py b/llama_toolchain/dataset/api/endpoints.py
index 023f91259..f2d39600f 100644
--- a/llama_toolchain/dataset/api/endpoints.py
+++ b/llama_toolchain/dataset/api/endpoints.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import Protocol
 
 from pydantic import BaseModel
diff --git a/llama_toolchain/evaluations/api/__init__.py b/llama_toolchain/evaluations/api/__init__.py
index 38413ff60..4c8d401c4 100644
--- a/llama_toolchain/evaluations/api/__init__.py
+++ b/llama_toolchain/evaluations/api/__init__.py
@@ -1,2 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .datatypes import *  # noqa: F401 F403
 from .endpoints import *  # noqa: F401 F403
diff --git a/llama_toolchain/evaluations/api/datatypes.py b/llama_toolchain/evaluations/api/datatypes.py
index 692664846..fed41bc24 100644
--- a/llama_toolchain/evaluations/api/datatypes.py
+++ b/llama_toolchain/evaluations/api/datatypes.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import Enum
 
 from pydantic import BaseModel
diff --git a/llama_toolchain/evaluations/api/endpoints.py b/llama_toolchain/evaluations/api/endpoints.py
index b9b592313..ac320c923 100644
--- a/llama_toolchain/evaluations/api/endpoints.py
+++ b/llama_toolchain/evaluations/api/endpoints.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import List, Protocol
 
 from pydantic import BaseModel
diff --git a/llama_toolchain/inference/__init__.py b/llama_toolchain/inference/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/inference/__init__.py
+++ b/llama_toolchain/inference/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/inference/api/__init__.py b/llama_toolchain/inference/api/__init__.py
index 38413ff60..4c8d401c4 100644
--- a/llama_toolchain/inference/api/__init__.py
+++ b/llama_toolchain/inference/api/__init__.py
@@ -1,2 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .datatypes import *  # noqa: F401 F403
 from .endpoints import *  # noqa: F401 F403
diff --git a/llama_toolchain/inference/api/config.py b/llama_toolchain/inference/api/config.py
index 8c2f160f5..538345e1f 100644
--- a/llama_toolchain/inference/api/config.py
+++ b/llama_toolchain/inference/api/config.py
@@ -1,14 +1,20 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from dataclasses import dataclass
 from enum import Enum
 from typing import Literal, Optional, Union
 
 from hydra.core.config_store import ConfigStore
+from llama_models.llama3_1.api.datatypes import CheckpointQuantizationFormat
 
 from pydantic import BaseModel, Field
 from typing_extensions import Annotated
 
 from .datatypes import QuantizationConfig
-from llama_models.llama3_1.api.datatypes import CheckpointQuantizationFormat
 
 
 class ImplType(Enum):
diff --git a/llama_toolchain/inference/api/datatypes.py b/llama_toolchain/inference/api/datatypes.py
index 3141a108e..733fccc88 100644
--- a/llama_toolchain/inference/api/datatypes.py
+++ b/llama_toolchain/inference/api/datatypes.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import Enum
 from typing import List, Literal, Optional, Union
 
@@ -26,9 +32,7 @@ class Fp8QuantizationConfig(BaseModel):
 
 @json_schema_type
 class Bf16QuantizationConfig(BaseModel):
-    type: Literal[QuantizationType.bf16.value] = (
-        QuantizationType.bf16.value
-    )
+    type: Literal[QuantizationType.bf16.value] = QuantizationType.bf16.value
 
 
 QuantizationConfig = Annotated[
diff --git a/llama_toolchain/inference/api/endpoints.py b/llama_toolchain/inference/api/endpoints.py
index c148b0bff..e4467597d 100644
--- a/llama_toolchain/inference/api/endpoints.py
+++ b/llama_toolchain/inference/api/endpoints.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .datatypes import *  # noqa: F403
 from typing import Optional, Protocol
 
diff --git a/llama_toolchain/inference/api_instance.py b/llama_toolchain/inference/api_instance.py
index d39d642be..869a0dedf 100644
--- a/llama_toolchain/inference/api_instance.py
+++ b/llama_toolchain/inference/api_instance.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .api.config import ImplType, InferenceConfig
 
 
diff --git a/llama_toolchain/inference/client.py b/llama_toolchain/inference/client.py
index c798ed6fe..032e4f477 100644
--- a/llama_toolchain/inference/client.py
+++ b/llama_toolchain/inference/client.py
@@ -1,7 +1,15 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import asyncio
 import json
 from typing import AsyncGenerator
 
+from urllib.request import getproxies
+
 import fire
 import httpx
 
@@ -9,12 +17,16 @@ from .api import (
     ChatCompletionRequest,
     ChatCompletionResponseStreamChunk,
     CompletionRequest,
-    InstructModel,
     Inference,
+    InstructModel,
     UserMessage,
 )
 from .event_logger import EventLogger
 
+print(getproxies())
+# import sys
+# sys.exit(0)
+
 
 class InferenceClient(Inference):
     def __init__(self, base_url: str):
diff --git a/llama_toolchain/inference/event_logger.py b/llama_toolchain/inference/event_logger.py
index 71d472ee1..299d9c34e 100644
--- a/llama_toolchain/inference/event_logger.py
+++ b/llama_toolchain/inference/event_logger.py
@@ -1,8 +1,12 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
 
-from termcolor import cprint 
-from llama_toolchain.inference.api import (
-    ChatCompletionResponseEventType,
-)
+from termcolor import cprint
+
+from llama_toolchain.inference.api import ChatCompletionResponseEventType
 
 
 class LogEvent:
@@ -30,4 +34,3 @@ class EventLogger:
                 yield LogEvent(event.delta, color="yellow", end="")
             elif event.event_type == ChatCompletionResponseEventType.complete:
                 yield LogEvent("")
-
diff --git a/llama_toolchain/inference/generation.py b/llama_toolchain/inference/generation.py
index 6ca882892..6cfc1f04e 100644
--- a/llama_toolchain/inference/generation.py
+++ b/llama_toolchain/inference/generation.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 # Copyright (c) Meta Platforms, Inc. and affiliates.
 # This software may be used and distributed in accordance with the terms of the Llama 3 Community License Agreement.
 
diff --git a/llama_toolchain/inference/inference.py b/llama_toolchain/inference/inference.py
index 48d15cea1..1b0dbe018 100644
--- a/llama_toolchain/inference/inference.py
+++ b/llama_toolchain/inference/inference.py
@@ -1,16 +1,17 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import AsyncGenerator
 
 from llama_models.llama3_1.api.datatypes import StopReason
 
-from .api.config import (
-    CheckpointQuantizationFormat,
-    CheckpointType,
-    InlineImplConfig,
-)
+from .api.config import InlineImplConfig
 from .api.datatypes import (
     ChatCompletionResponseEvent,
     ChatCompletionResponseEventType,
-    QuantizationConfig,
     ToolCallDelta,
     ToolCallParseStatus,
 )
diff --git a/llama_toolchain/inference/model_parallel.py b/llama_toolchain/inference/model_parallel.py
index 42b7091c1..b6cd344e3 100644
--- a/llama_toolchain/inference/model_parallel.py
+++ b/llama_toolchain/inference/model_parallel.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from copy import deepcopy
 from dataclasses import dataclass
 from functools import partial
diff --git a/llama_toolchain/inference/parallel_utils.py b/llama_toolchain/inference/parallel_utils.py
index daa061792..cc8e2c6f2 100644
--- a/llama_toolchain/inference/parallel_utils.py
+++ b/llama_toolchain/inference/parallel_utils.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import multiprocessing
 import os
 import pickle
diff --git a/llama_toolchain/inference/quantization/fp8_impls.py b/llama_toolchain/inference/quantization/fp8_impls.py
index 9cac8bea0..26138c894 100644
--- a/llama_toolchain/inference/quantization/fp8_impls.py
+++ b/llama_toolchain/inference/quantization/fp8_impls.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 # Copyright (c) Meta Platforms, Inc. and affiliates.
 # This software may be used and distributed in accordance with the terms of the Llama 3 Community License Agreement.
 
@@ -8,7 +14,7 @@ try:
     import fbgemm_gpu.experimental.gen_ai  # noqa: F401
 
     print("Using efficient FP8 operators in FBGEMM.")
-except (ImportError, ModuleNotFoundError):
+except ImportError:
     print("No efficient FP8 operators. Please install FBGEMM in fp8_requirements.txt.")
     raise
 
@@ -57,8 +63,8 @@ def ffn_swiglu(
             x, w1, w3, w2, w1.activation_scale_ub, num_tokens, is_memory_bounded
         )
 
-    (B, T, D) = x.shape
-    (HD_L, D_) = w1.shape
+    (B, T, D) = x.shape  # noqa: N806
+    (HD_L, D_) = w1.shape  # noqa: N806
     assert D_ == D
 
     assert isinstance(w1, Tensor)
@@ -153,8 +159,8 @@ def ffn_swiglu_fp8_dynamic(
     num_tokens: Optional[Tensor] = None,
     is_memory_bounded: bool = False,
 ) -> Tensor:
-    (B, T, D) = x.shape
-    HD_L = w1.shape[0]
+    (B, T, D) = x.shape  # noqa: N806
+    HD_L = w1.shape[0]  # noqa: N806
     assert HD_L == w3.shape[0]
     x1 = fc_fp8_dynamic(
         x.view(B * T, D),
diff --git a/llama_toolchain/inference/quantization/loader.py b/llama_toolchain/inference/quantization/loader.py
index f1eccf79e..7279928b8 100644
--- a/llama_toolchain/inference/quantization/loader.py
+++ b/llama_toolchain/inference/quantization/loader.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 # Copyright (c) Meta Platforms, Inc. and affiliates.
 # This software may be used and distributed in accordance with the terms of the Llama 3 Community License Agreement.
 
@@ -9,13 +15,13 @@ import torch
 from fairscale.nn.model_parallel.mappings import reduce_from_model_parallel_region
 from llama_models.llama3_1.api.model import Transformer, TransformerBlock
 
-from termcolor import cprint
-
 from llama_toolchain.inference.api.config import (
     CheckpointQuantizationFormat,
     InlineImplConfig,
 )
 from llama_toolchain.inference.api.datatypes import QuantizationType
+
+from termcolor import cprint
 from torch import Tensor
 
 
@@ -24,7 +30,7 @@ def is_fbgemm_available() -> bool:
         import fbgemm_gpu.experimental.gen_ai  # noqa: F401
 
         return True
-    except (ImportError, ModuleNotFoundError):
+    except ImportError:
         return False
 
 
diff --git a/llama_toolchain/inference/quantization/scripts/quantize_checkpoint.py b/llama_toolchain/inference/quantization/scripts/quantize_checkpoint.py
index 6fe66e13f..da160f920 100644
--- a/llama_toolchain/inference/quantization/scripts/quantize_checkpoint.py
+++ b/llama_toolchain/inference/quantization/scripts/quantize_checkpoint.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 # Copyright (c) Meta Platforms, Inc. and affiliates.
 # This software may be used and distributed in accordance with the terms of the Llama 3 Community License Agreement.
 
diff --git a/llama_toolchain/inference/quantization/scripts/run_quantize_checkpoint.sh b/llama_toolchain/inference/quantization/scripts/run_quantize_checkpoint.sh
index a61180907..93d963261 100755
--- a/llama_toolchain/inference/quantization/scripts/run_quantize_checkpoint.sh
+++ b/llama_toolchain/inference/quantization/scripts/run_quantize_checkpoint.sh
@@ -1,5 +1,11 @@
 #!/bin/bash
 
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 set -euo pipefail
 set -x
 
diff --git a/llama_toolchain/inference/quantization/test_fp8.py b/llama_toolchain/inference/quantization/test_fp8.py
index 27b95f65c..435872514 100644
--- a/llama_toolchain/inference/quantization/test_fp8.py
+++ b/llama_toolchain/inference/quantization/test_fp8.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 # Copyright (c) Meta Platforms, Inc. and affiliates.
 # This software may be used and distributed in accordance with the terms of the Llama 3 Community License Agreement.
 
@@ -5,7 +11,7 @@ import unittest
 
 import torch
 
-from fp8_impls import ffn_swiglu_fp8_dynamic, quantize_fp8, FfnQuantizeMode
+from fp8_impls import ffn_swiglu_fp8_dynamic, FfnQuantizeMode, quantize_fp8
 from hypothesis import given, settings, strategies as st
 from torch import Tensor
 
@@ -26,29 +32,25 @@ class FP8Tests(unittest.TestCase):
     )
     def test_fp8_ffn(
         self,
-        D: int,
+        D: int,  # noqa
         HD_L: int,
         B: int,
         T: int,
         UB: float,
     ) -> None:
         x = torch.randn(size=(B, T, D), dtype=torch.bfloat16, device="cuda") * 0.1
-        w1 = (
-            torch.randn(size=(HD_L, D), dtype=torch.bfloat16, device="cuda") * 0.01
-        )
-        w3 = (
-            torch.randn(size=(HD_L, D), dtype=torch.bfloat16, device="cuda") * 0.01
-        )
+        w1 = torch.randn(size=(HD_L, D), dtype=torch.bfloat16, device="cuda") * 0.01
+        w3 = torch.randn(size=(HD_L, D), dtype=torch.bfloat16, device="cuda") * 0.01
         w2 = torch.randn(size=(D, HD_L), dtype=torch.bfloat16, device="cuda") * 0.1
 
-        x_q = quantize_fp8(x, UB, mode = FfnQuantizeMode.FP8_ROWWISE)
-        w1_q = quantize_fp8(w1, UB, mode = FfnQuantizeMode.FP8_ROWWISE)
-        w3_q = quantize_fp8(w3, UB, mode = FfnQuantizeMode.FP8_ROWWISE)
-        w2_q = quantize_fp8(w2, UB, mode = FfnQuantizeMode.FP8_ROWWISE)
+        x_q = quantize_fp8(x, UB, mode=FfnQuantizeMode.FP8_ROWWISE)
+        w1_q = quantize_fp8(w1, UB, mode=FfnQuantizeMode.FP8_ROWWISE)
+        w3_q = quantize_fp8(w3, UB, mode=FfnQuantizeMode.FP8_ROWWISE)
+        w2_q = quantize_fp8(w2, UB, mode=FfnQuantizeMode.FP8_ROWWISE)
 
         def ref_ffn(x: Tensor, w1: Tensor, w3: Tensor, w2: Tensor) -> Tensor:
-            (B, T, D) = x.shape
-            (HD_L, D_) = w1.shape
+            (B, T, D) = x.shape  # noqa: N806
+            (HD_L, D_) = w1.shape  # noqa: N806
             assert D_ == D
 
             x1 = x.view(B * T, D) @ w1.T
diff --git a/llama_toolchain/inference/server.py b/llama_toolchain/inference/server.py
index fcef995f1..c0bdfca03 100644
--- a/llama_toolchain/inference/server.py
+++ b/llama_toolchain/inference/server.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import asyncio
 import signal
 
diff --git a/llama_toolchain/memory/__init__.py b/llama_toolchain/memory/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/memory/__init__.py
+++ b/llama_toolchain/memory/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/memory/api/__init__.py b/llama_toolchain/memory/api/__init__.py
index 38413ff60..4c8d401c4 100644
--- a/llama_toolchain/memory/api/__init__.py
+++ b/llama_toolchain/memory/api/__init__.py
@@ -1,2 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .datatypes import *  # noqa: F401 F403
 from .endpoints import *  # noqa: F401 F403
diff --git a/llama_toolchain/memory/api/datatypes.py b/llama_toolchain/memory/api/datatypes.py
index 0969203f6..f88484b33 100644
--- a/llama_toolchain/memory/api/datatypes.py
+++ b/llama_toolchain/memory/api/datatypes.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import Any, Dict
 
 from pydantic import BaseModel
diff --git a/llama_toolchain/memory/api/endpoints.py b/llama_toolchain/memory/api/endpoints.py
index 441c1d777..c8d206562 100644
--- a/llama_toolchain/memory/api/endpoints.py
+++ b/llama_toolchain/memory/api/endpoints.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import List, Protocol
 
 from pyopenapi import webmethod
diff --git a/llama_toolchain/models/api/endpoints.py b/llama_toolchain/models/api/endpoints.py
index 432dc391e..44f19edc5 100644
--- a/llama_toolchain/models/api/endpoints.py
+++ b/llama_toolchain/models/api/endpoints.py
@@ -1,9 +1,14 @@
-from typing import Protocol 
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
 
-from pyopenapi import webmethod
+from typing import Protocol
 
-from pydantic import BaseModel
+from pydantic import BaseModel  # noqa: F401
+
+from pyopenapi import webmethod  # noqa: F401
 
 
-class Models(Protocol):
-    ...
+class Models(Protocol): ...
diff --git a/llama_toolchain/post_training/api/__init__.py b/llama_toolchain/post_training/api/__init__.py
index 38413ff60..4c8d401c4 100644
--- a/llama_toolchain/post_training/api/__init__.py
+++ b/llama_toolchain/post_training/api/__init__.py
@@ -1,2 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .datatypes import *  # noqa: F401 F403
 from .endpoints import *  # noqa: F401 F403
diff --git a/llama_toolchain/post_training/api/datatypes.py b/llama_toolchain/post_training/api/datatypes.py
index 50b491c73..b2841133a 100644
--- a/llama_toolchain/post_training/api/datatypes.py
+++ b/llama_toolchain/post_training/api/datatypes.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import Enum
 from typing import List
 
diff --git a/llama_toolchain/post_training/api/endpoints.py b/llama_toolchain/post_training/api/endpoints.py
index 3ec17e01f..7307701b7 100644
--- a/llama_toolchain/post_training/api/endpoints.py
+++ b/llama_toolchain/post_training/api/endpoints.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from datetime import datetime
 
 from typing import Any, Dict, List, Optional, Protocol
diff --git a/llama_toolchain/reward_scoring/api/__init__.py b/llama_toolchain/reward_scoring/api/__init__.py
index 38413ff60..4c8d401c4 100644
--- a/llama_toolchain/reward_scoring/api/__init__.py
+++ b/llama_toolchain/reward_scoring/api/__init__.py
@@ -1,2 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .datatypes import *  # noqa: F401 F403
 from .endpoints import *  # noqa: F401 F403
diff --git a/llama_toolchain/reward_scoring/api/datatypes.py b/llama_toolchain/reward_scoring/api/datatypes.py
index f53d22861..9356b4623 100644
--- a/llama_toolchain/reward_scoring/api/datatypes.py
+++ b/llama_toolchain/reward_scoring/api/datatypes.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import List
 
 from pydantic import BaseModel
diff --git a/llama_toolchain/reward_scoring/api/endpoints.py b/llama_toolchain/reward_scoring/api/endpoints.py
index 72de43498..bd51848b4 100644
--- a/llama_toolchain/reward_scoring/api/endpoints.py
+++ b/llama_toolchain/reward_scoring/api/endpoints.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import List, Protocol, Union
 from .datatypes import *  # noqa: F403
 
diff --git a/llama_toolchain/safety/__init__.py b/llama_toolchain/safety/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/safety/__init__.py
+++ b/llama_toolchain/safety/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/safety/api/__init__.py b/llama_toolchain/safety/api/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/safety/api/__init__.py
+++ b/llama_toolchain/safety/api/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/safety/api/config.py b/llama_toolchain/safety/api/config.py
index 4858bc53c..4236b06b2 100644
--- a/llama_toolchain/safety/api/config.py
+++ b/llama_toolchain/safety/api/config.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import List, Optional
 
 from pydantic import BaseModel
diff --git a/llama_toolchain/safety/api/datatypes.py b/llama_toolchain/safety/api/datatypes.py
index 27c52337c..47f2c6856 100644
--- a/llama_toolchain/safety/api/datatypes.py
+++ b/llama_toolchain/safety/api/datatypes.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import Enum
 from typing import Dict, Optional, Union
 
diff --git a/llama_toolchain/safety/shields/__init__.py b/llama_toolchain/safety/shields/__init__.py
index 4dae3b690..cc887050f 100644
--- a/llama_toolchain/safety/shields/__init__.py
+++ b/llama_toolchain/safety/shields/__init__.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 # supress warnings and spew of logs from hugging face
 import transformers
 
diff --git a/llama_toolchain/safety/shields/base.py b/llama_toolchain/safety/shields/base.py
index f3fb49bc7..a320c8005 100644
--- a/llama_toolchain/safety/shields/base.py
+++ b/llama_toolchain/safety/shields/base.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from abc import ABC, abstractmethod
 from typing import List, Union
 
diff --git a/llama_toolchain/safety/shields/code_scanner.py b/llama_toolchain/safety/shields/code_scanner.py
index 8e220b017..2607d5ffe 100644
--- a/llama_toolchain/safety/shields/code_scanner.py
+++ b/llama_toolchain/safety/shields/code_scanner.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from codeshield.cs import CodeShield
 from termcolor import cprint
 
diff --git a/llama_toolchain/safety/shields/contrib/__init__.py b/llama_toolchain/safety/shields/contrib/__init__.py
index e69de29bb..2cca4b083 100644
--- a/llama_toolchain/safety/shields/contrib/__init__.py
+++ b/llama_toolchain/safety/shields/contrib/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
diff --git a/llama_toolchain/safety/shields/contrib/third_party_shield.py b/llama_toolchain/safety/shields/contrib/third_party_shield.py
index 29e65dce8..051019792 100644
--- a/llama_toolchain/safety/shields/contrib/third_party_shield.py
+++ b/llama_toolchain/safety/shields/contrib/third_party_shield.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import sys
 from typing import List
 
@@ -5,7 +11,11 @@ from llama_models.llama3_1.api.datatypes import Message
 
 parent_dir = "../.."
 sys.path.append(parent_dir)
-from llama_toolchain.safety.shields.base import OnViolationAction, ShieldBase, ShieldResponse
+from llama_toolchain.safety.shields.base import (
+    OnViolationAction,
+    ShieldBase,
+    ShieldResponse,
+)
 
 _INSTANCE = None
 
diff --git a/llama_toolchain/safety/shields/llama_guard.py b/llama_toolchain/safety/shields/llama_guard.py
index 94be0e06c..a2b654afd 100644
--- a/llama_toolchain/safety/shields/llama_guard.py
+++ b/llama_toolchain/safety/shields/llama_guard.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import re
 
 from string import Template
@@ -100,7 +106,7 @@ class LlamaGuardShield(ShieldBase):
     def instance(
         on_violation_action=OnViolationAction.RAISE,
         model_dir: str = None,
-        excluded_categories: List[str] = [],
+        excluded_categories: List[str] = None,
         disable_input_check: bool = False,
         disable_output_check: bool = False,
     ) -> "LlamaGuardShield":
@@ -119,7 +125,7 @@ class LlamaGuardShield(ShieldBase):
         self,
         on_violation_action: OnViolationAction = OnViolationAction.RAISE,
         model_dir: str = None,
-        excluded_categories: List[str] = [],
+        excluded_categories: List[str] = None,
         disable_input_check: bool = False,
         disable_output_check: bool = False,
     ):
@@ -129,6 +135,8 @@ class LlamaGuardShield(ShieldBase):
 
         assert model_dir is not None, "Llama Guard model_dir is None"
 
+        if excluded_categories is None:
+            excluded_categories = []
         assert len(excluded_categories) == 0 or all(
             x in SAFETY_CATEGORIES_TO_CODE_MAP.values() for x in excluded_categories
         ), "Invalid categories in excluded categories. Expected format is ['S1', 'S2', ..]"
diff --git a/llama_toolchain/safety/shields/prompt_guard.py b/llama_toolchain/safety/shields/prompt_guard.py
index ff720da89..ac94a12b3 100644
--- a/llama_toolchain/safety/shields/prompt_guard.py
+++ b/llama_toolchain/safety/shields/prompt_guard.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import auto, Enum
 from typing import List
 
diff --git a/llama_toolchain/safety/shields/shield_runner.py b/llama_toolchain/safety/shields/shield_runner.py
index 27070d424..1d320e02b 100644
--- a/llama_toolchain/safety/shields/shield_runner.py
+++ b/llama_toolchain/safety/shields/shield_runner.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import asyncio
 from typing import List
 
@@ -6,7 +12,7 @@ from llama_models.llama3_1.api.datatypes import Message, Role
 from .base import OnViolationAction, ShieldBase, ShieldResponse
 
 
-class SafetyException(Exception):
+class SafetyException(Exception):  # noqa: N818
     def __init__(self, response: ShieldResponse):
         self.response = response
         super().__init__(response.violation_return_message)
diff --git a/llama_toolchain/spec/generate.py b/llama_toolchain/spec/generate.py
index 5f7095017..4841d9d05 100644
--- a/llama_toolchain/spec/generate.py
+++ b/llama_toolchain/spec/generate.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from datetime import datetime
 
 import yaml
diff --git a/llama_toolchain/spec/package.sh b/llama_toolchain/spec/package.sh
index 854af6ffd..e7d43a9d5 100644
--- a/llama_toolchain/spec/package.sh
+++ b/llama_toolchain/spec/package.sh
@@ -1,5 +1,11 @@
 #!/bin/bash
 
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 set -euo pipefail
 
 TMPDIR=$(mktemp -d)
diff --git a/llama_toolchain/spec/post_training_types.py b/llama_toolchain/spec/post_training_types.py
index fc7d963cf..3d773a0a9 100644
--- a/llama_toolchain/spec/post_training_types.py
+++ b/llama_toolchain/spec/post_training_types.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import Enum
 from typing import Any, Dict, List
 
diff --git a/llama_toolchain/spec/run_openapi_generator.sh b/llama_toolchain/spec/run_openapi_generator.sh
index bb0171fa3..0d78df3dd 100644
--- a/llama_toolchain/spec/run_openapi_generator.sh
+++ b/llama_toolchain/spec/run_openapi_generator.sh
@@ -1,5 +1,11 @@
 #!/bin/bash
 
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 set -x
 
 PYTHONPATH=/data/users/rsm/llama-models:/data/users/rsm/llama-toolchain:/data/users/rsm/llama-agentic-system:../../../oss-ops:../.. python -m toolchain.spec.generate
diff --git a/llama_toolchain/synthetic_data_generation/api/__init__.py b/llama_toolchain/synthetic_data_generation/api/__init__.py
index 38413ff60..4c8d401c4 100644
--- a/llama_toolchain/synthetic_data_generation/api/__init__.py
+++ b/llama_toolchain/synthetic_data_generation/api/__init__.py
@@ -1,2 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from .datatypes import *  # noqa: F401 F403
 from .endpoints import *  # noqa: F401 F403
diff --git a/llama_toolchain/synthetic_data_generation/api/datatypes.py b/llama_toolchain/synthetic_data_generation/api/datatypes.py
index fd53a74a3..a4dca466d 100644
--- a/llama_toolchain/synthetic_data_generation/api/datatypes.py
+++ b/llama_toolchain/synthetic_data_generation/api/datatypes.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from enum import Enum
 
 
diff --git a/llama_toolchain/synthetic_data_generation/api/endpoints.py b/llama_toolchain/synthetic_data_generation/api/endpoints.py
index 1fbec024a..71e255ecc 100644
--- a/llama_toolchain/synthetic_data_generation/api/endpoints.py
+++ b/llama_toolchain/synthetic_data_generation/api/endpoints.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import Any, Dict, List, Optional, Protocol
 
 from pydantic import BaseModel
diff --git a/llama_toolchain/utils.py b/llama_toolchain/utils.py
index dbc72b0c8..3d4616c24 100644
--- a/llama_toolchain/utils.py
+++ b/llama_toolchain/utils.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 import getpass
 import os
 from typing import Optional
diff --git a/setup.py b/setup.py
index a2fdd040f..364f4aec9 100644
--- a/setup.py
+++ b/setup.py
@@ -1,9 +1,15 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described found in the
+# LICENSE file in the root directory of this source tree.
+
 from setuptools import find_packages, setup
 
 
 # Function to read the requirements.txt file
 def read_requirements():
-    with open('requirements.txt') as req:
+    with open("requirements.txt") as req:
         content = req.readlines()
     return [line.strip() for line in content]
 
@@ -14,11 +20,7 @@ setup(
     author="Meta Llama",
     author_email="rsm@meta.com",
     description="Llama toolchain",
-    entry_points={
-        "console_scripts": [
-            'llama = llama_toolchain.cli.llama:main'
-        ]
-    },
+    entry_points={"console_scripts": ["llama = llama_toolchain.cli.llama:main"]},
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
     url="https://github.com/meta-llama/llama-toolchain",
@@ -26,5 +28,5 @@ setup(
     classifiers=[],
     python_requires=">=3.10",
     install_requires=read_requirements(),
-    include_package_data=True
+    include_package_data=True,
 )