examples/object_store/user_report/README.md (1)

240-247: Fix user ID typo in Expected Output.

“678901” looks accidental; align with earlier “6789”.

-User report for 678901 with date latest added successfully
+User report for 6789 with date latest added successfully

packages/nvidia_nat_redis/src/nat/plugins/redis/memory.py (1)

33-59: Add docstrings, return type, and ensure the Redis client is closed.

• Public APIs require return type hints and Google-style docstrings.
• Close the Redis client after use to avoid connection leaks in long-lived processes.

Apply:

-@register_memory(config_type=RedisMemoryClientConfig)
-async def redis_memory_client(config: RedisMemoryClientConfig, builder: Builder):
+@register_memory(config_type=RedisMemoryClientConfig)
+async def redis_memory_client(config: RedisMemoryClientConfig, builder: Builder) -> "AsyncIterator[RedisEditor]":
+    """Create and yield a Redis-backed memory editor.
+
+    Args:
+        config: Redis memory client configuration.
+        builder: NAT builder used to resolve embedders and dependencies.
+
+    Yields:
+        A configured RedisEditor instance bound to the provided Redis connection.
+    """
@@
-    redis_client = redis.Redis(host=config.host,
+    redis_client = redis.Redis(host=config.host,
                                port=config.port,
                                db=config.db,
                                decode_responses=True,
                                socket_timeout=5.0,
                                socket_connect_timeout=5.0)
@@
-    memory_editor = RedisEditor(redis_client=redis_client, key_prefix=config.key_prefix, embedder=embedder)
-
-    yield memory_editor
+    memory_editor = RedisEditor(redis_client=redis_client, key_prefix=config.key_prefix, embedder=embedder)
+    try:
+        yield memory_editor
+    finally:
+        try:
+            await redis_client.aclose()
+        except Exception:  # best-effort close
+            pass

Add the import at top of file (or use collections.abc if preferred):

+from collections.abc import AsyncIterator

packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py (4)

63-74: Add return type hints and brief method docstrings to satisfy public-API standards.

-    async def __aenter__(self):
+    async def __aenter__(self) -> "S3ObjectStore":
+        """Open an S3 client context and ensure the bucket exists."""
@@
-    async def __aexit__(self, exc_type, exc_value, traceback):
+    async def __aexit__(self, exc_type, exc_value, traceback) -> None:
+        """Close the S3 client context."""

---

75-82: Bucket creation: handle AccessDenied and non-us-east-1 regions.

• Trying to create on 403 (AccessDenied) is misleading; re-raise instead.
• For AWS regions other than us-east-1, CreateBucketConfiguration with LocationConstraint is required.

Apply:

-        try:
-            await self._client.head_bucket(Bucket=self.bucket_name)
-        except ClientError as e:
-            if e.response['Error']['Code'] == '404':
-                await self._client.create_bucket(Bucket=self.bucket_name)
-                logger.info("Created bucket %s", self.bucket_name)
+        try:
+            await self._client.head_bucket(Bucket=self.bucket_name)
+        except ClientError as e:
+            code = e.response.get("Error", {}).get("Code")
+            if code in ("404", "NoSuchBucket"):
+                create_args = {"Bucket": self.bucket_name}
+                # For AWS S3 outside us-east-1, LocationConstraint is required
+                region_name = self._client_args.get("region_name")
+                if region_name and region_name != "us-east-1":
+                    create_args["CreateBucketConfiguration"] = {"LocationConstraint": region_name}
+                await self._client.create_bucket(**create_args)
+                logger.info("Created bucket %s", self.bucket_name)
+            elif code in ("403", "AccessDenied"):
+                logger.error("Access denied to bucket %s; cannot create or verify.", self.bucket_name)
+                raise
+            else:
+                raise

---

110-124: Precondition mapping: also match the S3 error code name.

Some providers set Error.Code to PreconditionFailed instead of relying on HTTP 412. Handle both.

-            http_status_code = e.response.get("ResponseMetadata", {}).get("HTTPStatusCode", None)
-            if http_status_code == 412:
+            http_status_code = e.response.get("ResponseMetadata", {}).get("HTTPStatusCode")
+            error_code = e.response.get("Error", {}).get("Code")
+            if http_status_code == 412 or error_code == "PreconditionFailed":
                 raise KeyAlreadyExistsError(
                     key=key,
                     additional_message=f"S3 object {self.bucket_name}/{key} already exists",
                 ) from e
             # Other errors — rethrow or handle accordingly
             raise

---

156-171: Delete semantics: avoid GET, use HEAD; don’t treat DeleteMarker as an error.

• Using get_object to test existence is costly; head_object is cheaper.
• Raising on DeleteMarker=True is incorrect for versioned buckets; it indicates a successful delete marker creation.

Apply:

-        try:
-            await self._client.get_object(Bucket=self.bucket_name, Key=key)
-        except ClientError as e:
-            if e.response['Error']['Code'] == 'NoSuchKey':
-                raise NoSuchKeyError(key=key, additional_message=str(e)) from e
-            raise
-
-        results = await self._client.delete_object(Bucket=self.bucket_name, Key=key)
-
-        if results.get('DeleteMarker', False):
-            raise NoSuchKeyError(key=key, additional_message="Object was a delete marker")
+        try:
+            await self._client.head_object(Bucket=self.bucket_name, Key=key)
+        except ClientError as e:
+            if e.response.get('Error', {}).get('Code') in ('404', 'NoSuchKey', 'NotFound'):
+                raise NoSuchKeyError(key=key, additional_message=str(e)) from e
+            raise
+
+        await self._client.delete_object(Bucket=self.bucket_name, Key=key)

examples/object_store/user_report/pyproject.toml (1)

1-1: Add missing SPDX Apache-2.0 header to pyproject.toml

The file examples/object_store/user_report/pyproject.toml does not include the required SPDX header and will fail our CI policy check in ci/scripts/github/checks.sh.

• File to update:
• examples/object_store/user_report/pyproject.toml

Please prepend the following standard header at the very top of that file:

# SPDX-FileCopyrightText: Copyright (c) 2024-2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

docs/source/store-and-retrieve/object-store.md (2)

18-18: Heading violates product naming guidance.

Per docs guidelines, headings should use “NeMo Agent Toolkit” (without “NVIDIA”). Update to:

• “Object Store for NeMo Agent Toolkit”.

-# Object Store for NVIDIA NeMo Agent Toolkit
+# Object Store for NeMo Agent Toolkit

---

145-149: metadata uses a set literal; should be a dict.

This will not serialize as intended and contradicts the stated metadata type.

-    await object_store.upsert_object("greeting.txt", ObjectStoreItem(
-        data=b"Goodbye, World!",
-        content_type="text/plain",
-        metadata={"author", "user123"}
-    ))
+    await object_store.upsert_object(
+        "greeting.txt",
+        ObjectStoreItem(
+            data=b"Goodbye, World!",
+            content_type="text/plain",
+            metadata={"author": "user123"},
+        ),
+    )

packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py (1)

34-41: Annotate the factory’s return type and document it (pyright treats missing annotations as errors).

The factory is a public API; add a return type and a short docstring.

Apply this diff:

-@register_object_store(config_type=RedisObjectStoreClientConfig)
-async def redis_object_store_client(config: RedisObjectStoreClientConfig, _builder: Builder):
+@register_object_store(config_type=RedisObjectStoreClientConfig)
+async def redis_object_store_client(
+    config: RedisObjectStoreClientConfig,
+    _builder: Builder,
+) -> AsyncIterator[ObjectStore]:
+    """Create and yield a Redis-backed ObjectStore client for the given config."""
@@
-    async with RedisObjectStore(**config.model_dump(exclude={"type"})) as store:
+    async with RedisObjectStore(**config.model_dump(exclude={"type"})) as store:
         yield store

packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py (1)

101-112: Type-annotate aexit with standard signature.

Explicit types avoid pyright/flake warnings.

Apply this diff (add from types import TracebackType to imports):

-    async def __aexit__(self, exc_type, exc_value, traceback):
+    async def __aexit__(
+        self,
+        exc_type: type[BaseException] | None,
+        exc_value: BaseException | None,
+        traceback: TracebackType | None,
+    ) -> None:

docs/source/extend/object-store.md (1)

231-244: Add missing imports in the “Minimal Skeleton” object_store.py snippet.

Readers will otherwise copy a snippet that references names that aren’t imported.

Apply this diff:

-```python
-from nat.data_models.object_store import ObjectStoreBaseConfig
+```python
+from nat.builder.builder import Builder
+from nat.cli.register_workflow import register_object_store
+from nat.data_models.object_store import ObjectStoreBaseConfig
@@
-@register_object_store(config_type=MyCustomObjectStoreConfig)
+@register_object_store(config_type=MyCustomObjectStoreConfig)
 async def my_custom_object_store(config: MyCustomObjectStoreConfig, _builder: Builder):
@@
     from .my_custom_object_store import MyCustomObjectStore
     yield MyCustomObjectStore(**config.model_dump(exclude={"type"}))

</blockquote></details>

</blockquote></details>

🧹 Nitpick comments (38)

src/nat/cli/commands/object_store/__init__.py (1)

1-15: Add a minimal module docstring (public module requirement) and optionally define explicit exports.

Per coding guidelines, every public Python module should have a concise Google‑style docstring. Since this initializer intentionally has no functional code, a short docstring and empty __all__ keeps API surface clear and satisfies docs linting.

Apply:

 # SPDX-License-Identifier: Apache-2.0
 # limitations under the License.
 
+"""Initializer for the object-store CLI command package.
+
+This module exists to mark the object_store command directory as a package and
+enable plugin discovery/wiring via nat's CLI entrypoints. No public API is
+intentionally exported from here.
+"""
+
+__all__: list[str] = []

examples/object_store/user_report/configs/config_mysql.yml (1)

29-29: Confirm env-var interpolation semantics for default values in application config loader.

${MYSQL_ROOT_PASSWORD:-my_password} is shell-style expansion. Ensure the NAT config loader expands the :- default operator; otherwise this will be treated as a literal string and authentication will fail at runtime. If your loader only supports simple ${VAR} or ${env:VAR,default} patterns, adjust accordingly and mirror the docs.

If needed, consider switching to a supported pattern (example):

-    password: ${MYSQL_ROOT_PASSWORD:-my_password}
+    # Use the interpolation syntax supported by the NAT config loader:
+    password: ${env:MYSQL_ROOT_PASSWORD,my_password}

examples/deploy/docker-compose.minio.yml (1)

31-35: Healthcheck uses curl inside the container; verify it exists or switch to a shell-based wget check.

Some MinIO images don’t include curl by default. If curl is missing, the container will report unhealthy despite being up. Consider a CMD-SHELL wget probe or confirm curl availability for your tag.

Option A — keep curl but use CMD-SHELL (if curl available):

-    healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
+    healthcheck:
+      test: ["CMD-SHELL", "curl -fsS http://localhost:9000/minio/health/live || exit 1"]
       interval: 30s
       timeout: 10s
       retries: 3
       start_period: 30s

Option B — switch to wget (often present in minimal images):

-    healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
+    healthcheck:
+      test: ["CMD-SHELL", "wget -qO- http://localhost:9000/minio/health/live >/dev/null 2>&1 || exit 1"]
       interval: 30s
       timeout: 10s
       retries: 3
       start_period: 30s

examples/deploy/README.md (4)

35-39: Tighten phrasing and articles in Key Features.

Minor grammar/readability tweaks:

• Add missing articles.
• Prefer “observability server” phrasing.

Apply:

-**Phoenix Observability:** Includes `docker-compose.phoenix.yml` for running Phoenix observability server to monitor and debug workflows.
+**Phoenix Observability:** Includes `docker-compose.phoenix.yml` for running a Phoenix observability server to monitor and debug workflows.

-**Redis Service:** Includes `docker-compose.redis.yml` for running Redis memory backend with Redis Insight for memory-based examples.
+**Redis Service:** Includes `docker-compose.redis.yml` for running a Redis memory backend with Redis Insight for memory-based examples.

---

65-73: Optional: cue first-time users that this creates the MinIO data volume.

A small hint can reduce questions about persistence:

-To start MinIO (for object store examples):
+To start MinIO (for object store examples; this also creates a local data volume):

---

80-84: Clarify Redis usage contexts.

Add “(and Redis-backed object store if selected)” to avoid confusion that Redis is only for memory:

-To start Redis (required for memory and object store examples):
+To start Redis (required for memory examples and for the Redis-backed object store):

---

87-106: Add a note on data persistence when stopping services.

New users might unintentionally expect data to be cleared. Consider:

-To stop the MinIO service:
+To stop the MinIO service (data persists; use `-v` to remove volumes if you want a clean slate):

Likewise for MySQL and Redis:

-docker compose -f examples/deploy/docker-compose.mysql.yml down
+docker compose -f examples/deploy/docker-compose.mysql.yml down
+# To also remove the MySQL data volume (destructive):
+# docker compose -f examples/deploy/docker-compose.mysql.yml down -v

examples/object_store/user_report/README.md (5)

71-83: MinIO section: grammar fixes and clarity.

• Use “on your local machine”.
• Add article “a” in “a drop‑in replacement”.
• Fix “should not to be used” → “should not be used”.

Apply:

-If you want to run this example in a local setup without creating a bucket in AWS, you can set up MinIO in your local machine. MinIO is an object storage system and acts as drop-in replacement for AWS S3.
+If you want to run this example in a local setup without creating a bucket in AWS, you can set up MinIO on your local machine. MinIO is an object storage system and acts as a drop-in replacement for AWS S3.

-> This is not a secure configuration and should not to be used in production systems.
+> This is not a secure configuration and should not be used in production systems.

---

84-102: MySQL section: security note grammar + tiny wording tweak.

-You should first specify the `MYSQL_ROOT_PASSWORD` environment variable.
+First, set the `MYSQL_ROOT_PASSWORD` environment variable.

-> This is not a secure configuration and should not to be used in production systems.
+> This is not a secure configuration and should not be used in production systems.

---

103-113: Redis section: security note grammar.

-> This is not a secure configuration and should not to be used in production systems.
+> This is not a secure configuration and should not be used in production systems.

---

118-133: Clarify “my-bucket” semantics across providers and credentials handling.

• For MySQL/Redis, “my-bucket” maps to a logical namespace/prefix rather than an actual bucket. Consider adding a one-liner to prevent confusion.
• Passing secrets via CLI can leak into shell history. Suggest env vars or interactive prompt.

Proposed additions (after the code block):

+Note:
+- For MySQL and Redis, `my-bucket` is a logical namespace (key prefix), not a physical bucket.
+- Avoid passing secrets on the command line when possible (they may be saved in shell history). Prefer environment variables or a prompt.

---

153-159: Cross-reference available configs to reduce guesswork.

Add explicit pointers:

-The above command will use the S3-compatible object store. Other configuration files are available in the `configs` directory for the different object stores.
+The above command uses the S3-compatible object store. Alternative configs: `configs/config_mysql.yml` and `configs/config_redis.yml`.

examples/object_store/user_report/pyproject.toml (1)

12-16: Remove trailing comma in the TOML array.

Some TOML parsers in tooling still choke on trailing commas in arrays. Safer to drop the trailing comma after the last dependency.

Apply:

 dependencies = [
     "nvidia-nat[mysql]~=1.3",
     "nvidia-nat[redis]~=1.3",
-    "nvidia-nat[s3]~=1.3",
+    "nvidia-nat[s3]~=1.3"
 ]

docs/source/store-and-retrieve/object-store.md (3)

20-23: Fix first-use product name in body text.

First mention in body should be “NVIDIA NeMo Agent toolkit”; subsequent mentions “NeMo Agent toolkit”.

-The NeMo Agent toolkit Object Store subsystem provides a standardized interface...
+The NVIDIA NeMo Agent toolkit Object Store subsystem provides a standardized interface...

---

182-183: Prefer --data-binary (or -T) for raw file uploads and address MD014.

-curl -d defaults to application/x-www-form-urlencoded; use --data-binary to send bytes as-is. Also drop the leading “$” to satisfy markdownlint MD014.

-  $ curl -X PUT -d @data.txt http://localhost:9000/static/folder/data.txt
+  curl -X PUT --data-binary @data.txt http://localhost:9000/static/folder/data.txt

Also apply the same “no $ prompt” style to the other curl examples in this section.

---

190-191: Use --data-binary for POST and align prompt style.

Same rationale as PUT; avoids content-type surprises and MD014 lints.

-  $ curl -X POST -d @data_new.txt http://localhost:9000/static/folder/data.txt
+  curl -X POST --data-binary @data_new.txt http://localhost:9000/static/folder/data.txt

src/nat/cli/entrypoint.py (1)

116-116: Avoid broad type: ignore if possible.

If feasible, add precise typing to start_command.get_command or cast to click.Command at the call site to remove the blanket ignore.

-cli.add_command(start_command.get_command(None, "mcp"), name="mcp")  # type: ignore
+from typing import cast
+cli.add_command(cast(click.Command, start_command.get_command(None, "mcp")), name="mcp")

packages/nvidia_nat_s3/src/nat/plugins/s3/object_store.py (1)

44-49: Constructor kwargs and relative import are correct; add return type + docstring.

Good switch to keyword unpacking and avoiding an unused builder. To meet API typing/docstring guidelines, add a return type and concise docstring.

-async def s3_object_store_client(config: S3ObjectStoreClientConfig, _builder: Builder):
+async def s3_object_store_client(
+    config: S3ObjectStoreClientConfig,
+    _builder: Builder,
+) -> "AsyncIterator[S3ObjectStore]":
+    """Yield an async S3ObjectStore client constructed from the provided config."""
@@
-    async with S3ObjectStore(**config.model_dump(exclude={"type"})) as store:
+    async with S3ObjectStore(**config.model_dump(exclude={"type"})) as store:
         yield store

Add these imports at the top of the file:

# at top-level (outside selected range)
from __future__ import annotations
from collections.abc import AsyncIterator

packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py (1)

61-66: Mirror S3 improvements: add return type + docstring.

Signature update to _builder and kwargs is good. Add typing and a docstring to satisfy public API requirements.

-async def mysql_object_store_client(config: MySQLObjectStoreClientConfig, _builder: Builder):
+async def mysql_object_store_client(
+    config: MySQLObjectStoreClientConfig,
+    _builder: Builder,
+) -> "AsyncIterator[MySQLObjectStore]":
+    """Yield an async MySQLObjectStore client constructed from the provided config."""
@@
-    async with MySQLObjectStore(**config.model_dump(exclude={"type"})) as store:
+    async with MySQLObjectStore(**config.model_dump(exclude={"type"})) as store:
         yield store

Add these imports at the top of the file:

# at top-level (outside selected range)
from __future__ import annotations
from collections.abc import AsyncIterator

packages/nvidia_nat_redis/tests/test_redis_object_store.py (1)

32-41: Isolate test buckets to avoid key collisions across runs.

Using a static bucket_name (“test”) can create cross-run interference. Prefer a unique bucket per run.

Apply this diff:

@@
-from contextlib import asynccontextmanager
+from contextlib import asynccontextmanager
+from uuid import uuid4
@@
-                RedisObjectStoreClientConfig(bucket_name="test", host="localhost", port=6379, db=0),
+                RedisObjectStoreClientConfig(
+                    bucket_name=f"test-{uuid4().hex}",
+                    host="localhost",
+                    port=6379,
+                    db=0,
+                ),

packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py (1)

16-22: Add a module docstring and missing imports for types to satisfy pyright and docs.

Public modules require a concise docstring; we also need typing for the factory’s return type.

Apply this diff:

@@
-from pydantic import Field
+"""Redis object store config and factory for nat plugins."""
+
+from typing import AsyncIterator
+
+from pydantic import Field
@@
-from nat.data_models.object_store import ObjectStoreBaseConfig
+from nat.data_models.object_store import ObjectStoreBaseConfig
+from nat.object_store.interfaces import ObjectStore

packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py (3)

113-137: Annotate return type for put_object.

Interface returns None on success; add annotation to match.

Apply this diff:

-    async def put_object(self, key: str, item: ObjectStoreItem):
+    async def put_object(self, key: str, item: ObjectStoreItem) -> None:

---

139-164: Annotate return type for upsert_object.

Apply this diff:

-    async def upsert_object(self, key: str, item: ObjectStoreItem):
+    async def upsert_object(self, key: str, item: ObjectStoreItem) -> None:

---

188-213: Annotate return type for delete_object.

Apply this diff:

-    async def delete_object(self, key: str):
+    async def delete_object(self, key: str) -> None:

packages/nvidia_nat_redis/src/nat/plugins/redis/redis_object_store.py (5)

29-35: Docstring phrasing: stored JSON, not “binary value.”

You are storing JSON produced by model_dump_json(). Adjust wording for accuracy.

Apply this diff:

@@
-    Each object is stored as a single binary value at key "nat:object_store:bucket:{bucket_name}:{object_key}".
+    Each object is stored as a single JSON-encoded value at key
+    "nat:object_store:bucket:{bucket_name}:{object_key}".

---

80-96: Annotate return type for put_object.

Match interface’s None-returning contract.

Apply this diff:

-    async def put_object(self, key: str, item: ObjectStoreItem):
+    async def put_object(self, key: str, item: ObjectStoreItem) -> None:

---

94-103: Annotate return type for upsert_object.

Apply this diff:

-    async def upsert_object(self, key: str, item: ObjectStoreItem):
+    async def upsert_object(self, key: str, item: ObjectStoreItem) -> None:

---

117-128: Annotate return type for delete_object.

Apply this diff:

-    async def delete_object(self, key: str):
+    async def delete_object(self, key: str) -> None:

---

16-26: Add a brief module docstring and types import.

Keep modules documented and add TracebackType import to support the annotations above.

Apply this diff:

@@
-import logging
+"""Redis-backed ObjectStore implementation for nat."""
+import logging
@@
-import redis.asyncio as redis
+import redis.asyncio as redis
+from types import TracebackType

docs/source/extend/object-store.md (1)

18-21: Fix first-use product naming per style guide.

First body use should be “NVIDIA NeMo Agent toolkit”; keep headings as “NeMo Agent Toolkit”.

Apply this diff:

-This documentation presumes familiarity with the NeMo Agent toolkit plugin architecture, the concept of "function registration" using `@register_function`, and how we define tool/workflow configurations in the NeMo Agent toolkit config described in the [Creating a New Tool and Workflow](../tutorials/create-a-new-workflow.md) tutorial.
+This documentation presumes familiarity with the NVIDIA NeMo Agent toolkit plugin architecture, the concept of "function registration" using `@register_function`, and how we define tool/workflow configurations in the NeMo Agent toolkit config described in the [Creating a New Tool and Workflow](../tutorials/create-a-new-workflow.md) tutorial.

src/nat/cli/commands/object_store/object_store.py (6)

131-136: Normalize keys to POSIX-style paths for cross-platform consistency.

On Windows, str(relative_path) uses backslashes, which can fragment keys across platforms. Use as_posix().

-                key = str(file_path.relative_to(local_dir))
+                key = file_path.relative_to(local_dir).as_posix()

---

83-91: Decorator should preserve metadata and add type hints.

Use functools.wraps to preserve the original function’s metadata (useful for Click/help) and annotate types. Also, it’s safe to ensure a context object here as an extra guard.

-def object_store_command_decorator(async_func):
+from collections.abc import Awaitable, Callable
+from functools import wraps
+
+def object_store_command_decorator(async_func: Callable[..., Awaitable[int]]) -> Callable[..., int]:
@@
-    @click.pass_context
-    def wrapper(ctx: click.Context, **kwargs):
+    @wraps(async_func)
+    @click.pass_context
+    def wrapper(ctx: click.Context, **kwargs) -> int:
-        config = ctx.obj["store_config"]
+        ctx.ensure_object(dict)
+        config = ctx.obj["store_config"]

---

112-126: Add return type hints and align docstrings with Google style.

These are public CLI entrypoints; per guidelines, add return annotations and ensure “Args:” blocks match parameter order.

-async def upload_command(store: ObjectStore, local_dir: Path, **_kwargs):
+async def upload_command(store: ObjectStore, local_dir: Path, **_kwargs) -> int:

---

145-157: Broaden type for keys and add return type.

Click passes a tuple for variadic arguments. Using Sequence[str] better reflects accepted inputs and keeps static typing happy.

-from nat.object_store.interfaces import ObjectStore
+from collections.abc import Sequence
+from nat.object_store.interfaces import ObjectStore
@@
-async def delete_command(store: ObjectStore, keys: list[str], **_kwargs):
+async def delete_command(store: ObjectStore, keys: Sequence[str], **_kwargs) -> int:

---

31-41: Consider validating STORE_CONFIGS lookups for better error messages.

KeyErrors from unknown store_type will be cryptic. Wrap lookup with a clear ClickException message.

-    config = STORE_CONFIGS[store_type]
+    try:
+        config = STORE_CONFIGS[store_type]
+    except KeyError as e:
+        raise click.ClickException(f"Unknown object store type: {store_type}") from e

---

213-221: Optional: log missing providers instead of silent pass.

Swallowing ImportError makes it hard to discover why a provider is absent. Consider logging at debug/info.

-        except ImportError:
-            pass
+        except ImportError as e:
+            logger.debug("Object store provider '%s' not available: %s", store_type, e)

examples/object_store/user_report/configs/config_redis.yml (2)

20-21: Avoid wildcard CORS in production.

allow_origins: ['*'] is fine for examples, but should be tightened in real deployments to specific origins.

If this example is used beyond local dev, consider parameterizing CORS via environment vars and documenting safe values.

---

69-79: Nit: minor copy edits for function descriptions.

E.g., “Deletes user diagnostic report from the bucket” → “Deletes a user diagnostic report from the bucket.”

Suggested wording improvements (no functional impact):

• “Deletes a user diagnostic report from the bucket...”
• “Do not run delete_user_report without the explicit intention to delete an existing report...”

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📥 Commits

Reviewing files that changed from the base of the PR and between d031954 and b99a122.

⛔ Files ignored due to path filters (1)

• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (24)

• docs/source/extend/object-store.md (4 hunks)
• docs/source/store-and-retrieve/object-store.md (3 hunks)
• examples/deploy/README.md (2 hunks)
• examples/deploy/docker-compose.minio.yml (1 hunks)
• examples/deploy/docker-compose.mysql.yml (1 hunks)
• examples/memory/redis/configs/config.yml (1 hunks)
• examples/object_store/user_report/README.md (5 hunks)
• examples/object_store/user_report/configs/config_mysql.yml (1 hunks)
• examples/object_store/user_report/configs/config_redis.yml (1 hunks)
• examples/object_store/user_report/pyproject.toml (1 hunks)
• examples/object_store/user_report/upload_to_minio.sh (0 hunks)
• examples/object_store/user_report/upload_to_mysql.sh (0 hunks)
• packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py (5 hunks)
• packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py (1 hunks)
• packages/nvidia_nat_redis/src/nat/plugins/redis/memory.py (1 hunks)
• packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py (1 hunks)
• packages/nvidia_nat_redis/src/nat/plugins/redis/redis_object_store.py (1 hunks)
• packages/nvidia_nat_redis/src/nat/plugins/redis/register.py (1 hunks)
• packages/nvidia_nat_redis/tests/test_redis_object_store.py (1 hunks)
• packages/nvidia_nat_s3/src/nat/plugins/s3/object_store.py (1 hunks)
• packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py (4 hunks)
• src/nat/cli/commands/object_store/__init__.py (1 hunks)
• src/nat/cli/commands/object_store/object_store.py (1 hunks)
• src/nat/cli/entrypoint.py (2 hunks)

💤 Files with no reviewable changes (2)

• examples/object_store/user_report/upload_to_minio.sh
• examples/object_store/user_report/upload_to_mysql.sh

🧰 Additional context used

📓 Path-based instructions (4)

**/*.py

📄 CodeRabbit inference engine (.cursor/rules/general.mdc)

**/*.py: In code comments, use abbreviations: NAT (informal/comments), nat (API namespace/CLI), nvidia-nat (package). Do not use these abbreviations in documentation.
Run isort first with line_length=120, multi_line_output=3, include_trailing_comma=true, force_single_line=true.
Run yapf second with PEP8 base and column_limit=120.
Respect Python naming: snake_case for functions and variables, PascalCase for classes, UPPER_CASE for constants.
Fix flake8 (pflake8) warnings unless explicitly ignored in pyproject.toml.
All public Python APIs require type hints (Python 3.11+) on parameters and return values.
Prefer typing/collections.abc abstractions (e.g., Sequence over list).
Use typing.Annotated to express units or extra metadata when useful.
Treat pyright warnings as errors during development (configured via pyproject.toml).
Provide Google‑style docstrings for every public module, class, function, and CLI command.
Docstring first line must be a concise description ending with a period.
Do not hard‑code version numbers in Python code; versions are derived by setuptools‑scm.
Prefer httpx with SSL verification enabled by default for HTTP calls; follow OWASP Top‑10.
Use async/await for I/O‑bound work (HTTP, DB, file reads).
Cache expensive computations with functools.lru_cache or an external cache when appropriate.
Leverage NumPy vectorized operations when beneficial and feasible.

Files:

• packages/nvidia_nat_s3/src/nat/plugins/s3/object_store.py
• src/nat/cli/commands/object_store/__init__.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py
• src/nat/cli/commands/object_store/object_store.py
• packages/nvidia_nat_redis/tests/test_redis_object_store.py
• src/nat/cli/entrypoint.py
• packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/redis_object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/register.py
• packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/memory.py
• packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py

{src/**/*.py,packages/*/src/**/*.py}

📄 CodeRabbit inference engine (.cursor/rules/general.mdc)

All importable Python code must live under src/ or packages//src/.

Files:

• packages/nvidia_nat_s3/src/nat/plugins/s3/object_store.py
• src/nat/cli/commands/object_store/__init__.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py
• src/nat/cli/commands/object_store/object_store.py
• src/nat/cli/entrypoint.py
• packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/redis_object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/register.py
• packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/memory.py
• packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py

**/*

📄 CodeRabbit inference engine (.cursor/rules/general.mdc)

**/*: Every file must start with the standard SPDX Apache‑2.0 header.
All source files must include the SPDX Apache‑2.0 header template; CI verifies via ci/scripts/github/checks.sh.

Files:

• packages/nvidia_nat_s3/src/nat/plugins/s3/object_store.py
• examples/memory/redis/configs/config.yml
• examples/deploy/docker-compose.mysql.yml
• src/nat/cli/commands/object_store/__init__.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py
• src/nat/cli/commands/object_store/object_store.py
• examples/object_store/user_report/configs/config_mysql.yml
• docs/source/store-and-retrieve/object-store.md
• examples/object_store/user_report/pyproject.toml
• examples/deploy/docker-compose.minio.yml
• packages/nvidia_nat_redis/tests/test_redis_object_store.py
• src/nat/cli/entrypoint.py
• packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/redis_object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/register.py
• packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py
• packages/nvidia_nat_redis/src/nat/plugins/redis/memory.py
• examples/deploy/README.md
• examples/object_store/user_report/README.md
• examples/object_store/user_report/configs/config_redis.yml
• packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py
• docs/source/extend/object-store.md

docs/source/**/*.md

📄 CodeRabbit inference engine (.cursor/rules/general.mdc)

docs/source/**/*.md: Use the exact product naming in documentation: first use “NVIDIA NeMo Agent toolkit”; subsequent references “NeMo Agent toolkit”; in headings use “NeMo Agent Toolkit” (capital T).
Never use deprecated names (Agent Intelligence toolkit, aiqtoolkit, AgentIQ, AIQ/aiq) in documentation unless explicitly referring to deprecated names or compatibility layers.
Use the intended name “AIQ Blueprint” and do not change it in docs.
Documentation sources must be Markdown files under docs/source.
Surround code entities with backticks in documentation to avoid Vale false positives.
Keep documentation in sync with code; Sphinx build must be error‑free with no broken links.
Do not hard‑code project version numbers in documentation; versions are derived by setuptools‑scm.

Files:

• docs/source/store-and-retrieve/object-store.md
• docs/source/extend/object-store.md

🧬 Code graph analysis (8)

packages/nvidia_nat_s3/src/nat/plugins/s3/object_store.py (1)

packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py (1)

• S3ObjectStore (30-170)

packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py (1)

packages/nvidia_nat_redis/src/nat/plugins/redis/redis_object_store.py (1)

• RedisObjectStore (29-127)

src/nat/cli/commands/object_store/object_store.py (3)

examples/object_store/user_report/tests/test_user_report_tool.py (2)

• builder (33-49)
• object_store (53-55)

src/nat/object_store/models.py (1)

• ObjectStoreItem (21-38)

packages/nvidia_nat_redis/src/nat/plugins/redis/redis_object_store.py (2)

• upsert_object (95-102)
• delete_object (118-127)

packages/nvidia_nat_redis/tests/test_redis_object_store.py (2)

examples/object_store/user_report/tests/test_user_report_tool.py (2)

• builder (33-49)
• object_store (53-55)

packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py (1)

• RedisObjectStoreClientConfig (23-31)

src/nat/cli/entrypoint.py (1)

src/nat/cli/commands/object_store/object_store.py (1)

• object_store_command (174-176)

packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py (1)

packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py (1)

• MySQLObjectStore (30-212)

packages/nvidia_nat_redis/src/nat/plugins/redis/redis_object_store.py (2)

src/nat/object_store/models.py (1)

• ObjectStoreItem (21-38)

packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py (2)

• put_object (114-136)
• get_object (166-185)

packages/nvidia_nat_redis/src/nat/plugins/redis/register.py (1)

examples/object_store/user_report/tests/test_user_report_tool.py (1)

• object_store (53-55)

🪛 markdownlint-cli2 (0.17.2)

docs/source/store-and-retrieve/object-store.md

182-182: Dollar signs used before commands without showing output

(MD014, commands-show-output)

---

186-186: Dollar signs used before commands without showing output

(MD014, commands-show-output)

---

190-190: Dollar signs used before commands without showing output

(MD014, commands-show-output)

🪛 LanguageTool

examples/deploy/README.md

[grammar] ~37-~37: There might be a mistake here.
Context: ...cludes docker-compose.phoenix.yml for running Phoenix observability server to monitor...

(QB_NEW_EN)

---

[grammar] ~37-~37: There might be a mistake here.
Context: ...y server to monitor and debug workflows. - Redis Service: Includes `docker-compos...

(QB_NEW_EN)

---

[grammar] ~43-~43: There might be a mistake here.
Context: ... ## Available Services - minio: docker-compose.minio.yml - mysql: docker-compose.mysql.yml - **`phoeni...

(QB_NEW_EN)

---

[grammar] ~44-~44: There might be a mistake here.
Context: ...ocker-compose.minio.yml - **mysql**: docker-compose.mysql.yml - **phoenix**: docker-compose.phoenix.yml - **redi...

(QB_NEW_EN)

examples/object_store/user_report/README.md

[grammar] ~28-~28: There might be a mistake here.
Context: ...up-api-keys) - Choose an Object Store - Setting up MinIO ...

(QB_NEW_EN)

---

[grammar] ~29-~29: There might be a mistake here.
Context: ...an-object-store) - Setting up MinIO - Setting up MySQL ...

(QB_NEW_EN)

---

[grammar] ~30-~30: There might be a mistake here.
Context: ...etting-up-minio) - Setting up MySQL - Setting up Redis -...

(QB_NEW_EN)

---

[grammar] ~31-~31: There might be a mistake here.
Context: ...etting-up-mysql) - Setting up Redis - Loading Mock Data -...

(QB_NEW_EN)

---

[grammar] ~32-~32: There might be a mistake here.
Context: ...setting-up-redis) - Loading Mock Data - [NeMo Agent Toolkit File Server](#nemo-ag...

(QB_NEW_EN)

---

[style] ~73-~73: Consider replacing this word to strengthen your wording.
Context: ...hine. MinIO is an object storage system and acts as drop-in replacement for AWS S3....

(AND_THAT)

---

[grammar] ~73-~73: There might be a mistake here.
Context: ...IO is an object storage system and acts as drop-in replacement for AWS S3. You ca...

(QB_NEW_EN)

---

[grammar] ~81-~81: There might be a mistake here.
Context: ...r-compose.minio.yml up -d ``` > [!NOTE] > This is not a secure configuration and...

(QB_NEW_EN)

---

[grammar] ~100-~100: There might be a mistake here.
Context: ...r-compose.mysql.yml up -d ``` > [!NOTE] > This is not a secure configuration and...

(QB_NEW_EN)

---

[grammar] ~111-~111: There might be a mistake here.
Context: ...r-compose.redis.yml up -d ``` > [!NOTE] > This is not a secure configuration and...

(QB_NEW_EN)

---

[grammar] ~165-~165: There might be a mistake here.
Context: ...erver (Optional) - Download an object: curl -X GET http://<hostname>:<port>/static/{file_path} -o {filename} - Upload an object: `curl -X POST http://<...

(QB_NEW_EN)

---

[grammar] ~166-~166: There might be a mistake here.
Context: ...ath} -o {filename}- Upload an object:curl -X POST http://:/static/{file_path} -d @{filename}- Upsert an object:curl -X PUT http://<h...

(QB_NEW_EN)

---

[grammar] ~167-~167: There might be a mistake here.
Context: ...th} -d @{filename}- Upsert an object:curl -X PUT http://:/static/{file_path} -d @{filename}- Delete an object:curl -X DELETE http:/...

(QB_NEW_EN)

---

[grammar] ~179-~179: There might be a mistake here.
Context: ... three options for running the workflow: 1. Using the S3-compatible object store (`c...

(QB_NEW_EN)

---

[grammar] ~180-~180: There might be a mistake here.
Context: ...ompatible object store (config_s3.yml) 2. Using the MySQL object store (`config_my...

(QB_NEW_EN)

---

[grammar] ~181-~181: There might be a mistake here.
Context: ... MySQL object store (config_mysql.yml) 3. Using the Redis object store (`config_re...

(QB_NEW_EN)

---

[grammar] ~184-~184: There might be a mistake here.
Context: ...hich uses an S3-compatible object store. You can change the configuration file by...

(QB_NEW_EN)

---

[grammar] ~185-~185: There might be a mistake here.
Context: ... config_mysql.yml for the MySQL server or config_redis.yml for the Redis serv...

(QB_NEW_EN)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: CI Pipeline / Check

🔇 Additional comments (15)

examples/memory/redis/configs/config.yml (1)

42-43: LGTM: numeric Redis db/port align with updated config types.

Changing db and port to integers matches the Redis config model updates and prevents accidental string-to-int coercion issues.

examples/deploy/docker-compose.mysql.yml (1)

18-18: Remove invalid tag concern

The Docker Hub manifest list for mysql:9.3 confirms that the tag exists and supports Linux on both AMD64 and ARM64 platforms. The earlier warning about an invalid or unavailable tag is therefore not applicable; no change to the image reference is required.

Likely an incorrect or invalid review comment.

examples/object_store/user_report/README.md (1)

179-187: Nice clarity on backend options.

This list and the follow-up guidance make backend switching explicit. Looks good.

packages/nvidia_nat_redis/src/nat/plugins/redis/memory.py (2)

24-29: Config field type tightening is correct and consistent with CLI/registry.

Switching to concrete types for host/port/db/key_prefix improves validation and aligns with the breaking-change note. Good change.

---

36-39: Lazy imports reduce optional-dependency pressure.

Deferring redis.asyncio and LLMFrameworkEnum import avoids import-time failures and circulars. Good practice here.

packages/nvidia_nat_redis/src/nat/plugins/redis/register.py (1)

22-24: Redis object-store registration and lazy imports verified ✅

• Confirmed the @register_object_store(config_type=RedisObjectStoreClientConfig) decorator is present in packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py (line 34), ensuring the provider registers at import time.
• Verified that object_store.py only performs lightweight imports at the top level and defers any Redis client imports (import redis.asyncio) to runtime within the redis_object_store_client function, keeping module import cheap.

No further changes required—LGTM.

examples/object_store/user_report/pyproject.toml (1)

12-16: Extras Declaration Verified – Please Confirm Packaging Publication

I’ve confirmed that the root pyproject.toml includes the following under [project.optional-dependencies] (lines 72–74):

• mysql = ["nvidia-nat-mysql"]
• redis = ["nvidia-nat-redis"]
• s3 = ["nvidia-nat-s3"]

These map exactly to the example’s nvidia-nat[mysql], nvidia-nat[redis], and nvidia-nat[s3] extras.

• Please ensure that your CI/build pipeline publishes the corresponding nvidia-nat-mysql, nvidia-nat-redis, and nvidia-nat-s3 distributions from the monorepo (so that users installing these extras will receive the correct packages).

docs/source/store-and-retrieve/object-store.md (2)

74-74: Redis provider addition reads clearly.

Good addition and path reference; consistent with other providers.

---

206-207: Link target and toctree entry validated

The file docs/source/extend/object-store.md is present and already referenced in the toctree:

• File exists at docs/source/extend/object-store.md
• Included in the toctree in docs/source/index.md:117

The link to ../extend/object-store.md in docs/source/store-and-retrieve/object-store.md is therefore valid, and no Sphinx build breakages will occur.

src/nat/cli/entrypoint.py (2)

111-111: Wiring the new object-store command into the CLI looks good.

Nice, this exposes nat object-store … subcommands alongside the existing groups.

---

36-36: object_store_command is properly decorated as a Click group

Verified that object_store_command in src/nat/cli/commands/object_store/object_store.py is decorated with @click.group, fulfilling the requirement for use with cli.add_command. No changes are needed.

• Location: src/nat/cli/commands/object_store/object_store.py, lines 173–174

@click.group(name="object-store", invoke_without_command=False, help="Manage object store operations.")
def object_store_command(**_kwargs):
    """Manage object store operations including uploading files and directories."""
    pass

packages/nvidia_nat_s3/src/nat/plugins/s3/object_store.py (1)

48-49: LGTM on context-managed lifecycle.

Using async context manager to guarantee connect/teardown is consistent with other stores.

packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py (1)

65-66: LGTM on async context management.

Consistent with the MySQLObjectStore implementation lifecycle.

packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py (1)

148-155: Confirm server compatibility for row aliasing in ON DUPLICATE KEY UPDATE.

The VALUES (... ) AS new ... UPDATE size=new.size pattern requires a server that supports row aliasing in INSERT. Please verify your minimum MySQL version in CI/prod and adjust if needed.

src/nat/cli/commands/object_store/object_store.py (1)

31-41: All provider module paths and config classes verified

• Confirmed nat.plugins.s3.object_store exists and defines S3ObjectStoreClientConfig in packages/nvidia_nat_s3/src/nat/plugins/s3/object_store.py:26.
• Confirmed nat.plugins.mysql.object_store exists and defines MySQLObjectStoreClientConfig in packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py:26.
• Confirmed nat.plugins.redis.object_store exists and defines RedisObjectStoreClientConfig in packages/nvidia_nat_redis/src/nat/plugins/redis/object_store.py:23.

No mismatches detected—no changes required.

docs/source/store-and-retrieve/object-store.md (1)

145-149: Fix Python snippet: metadata is a set, not a dict.

{"author", "user123"} creates a set; should be a dict {"author": "user123"}.

-    await object_store.upsert_object("greeting.txt", ObjectStoreItem(
-        data=b"Goodbye, World!",
-        content_type="text/plain",
-        metadata={"author", "user123"}
-    ))
+    await object_store.upsert_object("greeting.txt", ObjectStoreItem(
+        data=b"Goodbye, World!",
+        content_type="text/plain",
+        metadata={"author": "user123"}
+    ))

examples/object_store/user_report/README.md (2)

18-21: Apply product naming guide in heading and fix opening sentence grammar.

• Headings must use “NeMo Agent Toolkit” (capital T) without NVIDIA prefix.
• First body mention should use “NVIDIA NeMo Agent toolkit”.
• Fix “And example” → “An example”.

-# Report Tool for NVIDIA NeMo Agent Toolkit
+# Report Tool for NeMo Agent Toolkit
@@
-And example tool in the NeMo Agent toolkit that makes use of an Object Store to retrieve data.
+An example tool in the NVIDIA NeMo Agent toolkit that makes use of an Object Store to retrieve data.

---

238-243: Fix user ID typo in expected output (“678901” → “6789”).

This mismatches the earlier request and can confuse readers.

-User report for 678901 with date latest added successfully
+User report for 6789 with date latest added successfully

examples/object_store/user_report/README.md (1)

240-243: Fix user_id typo in expected output (678901 → 6789).

The tool response should match the requested user_id.

Apply this diff:

-User report for 678901 with date latest added successfully
+User report for 6789 with date latest added successfully

packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py (3)

119-121: Add return type hints and short Google‑style docstrings for public methods.

Guidelines require return annotations for all public APIs and docstrings.

Apply this diff:

 @override
-async def put_object(self, key: str, item: ObjectStoreItem):
+async def put_object(self, key: str, item: ObjectStoreItem) -> None:
+    """Create a new object; fail if the key already exists."""
@@
 @override
-async def upsert_object(self, key: str, item: ObjectStoreItem):
+async def upsert_object(self, key: str, item: ObjectStoreItem) -> None:
+    """Create or replace an object at the given key."""
@@
 @override
-async def delete_object(self, key: str):
+async def delete_object(self, key: str) -> None:
+    """Delete the object at the given key; raise if the key does not exist."""

Additionally, consider adding a brief module-level docstring at the top of the file describing the MySQL-backed object store (per docs requirement).

Also applies to: 145-145, 194-194

---

129-141: Avoid INSERT IGNORE; it can mask data issues. Detect duplicates explicitly via IntegrityError.

INSERT IGNORE may swallow non-duplicate errors (e.g., data truncation), leading to silent corruption. Use a plain INSERT and translate duplicate-key errors to KeyAlreadyExistsError.

Apply this diff:

                 try:
-                    await cur.execute("START TRANSACTION;")
-                    await cur.execute("INSERT IGNORE INTO object_meta (path, size) VALUES (%s, %s)",
-                                      (key, len(item.data)))
-                    if cur.rowcount == 0:
-                        raise KeyAlreadyExistsError(
-                            key=key, additional_message=f"MySQL table {self._bucket_name} already has key {key}")
+                    await cur.execute("START TRANSACTION;")
+                    await cur.execute("INSERT INTO object_meta (path, size) VALUES (%s, %s)", (key, len(item.data)))
                     await cur.execute("SELECT id FROM object_meta WHERE path=%s FOR UPDATE;", (key, ))
                     (obj_id, ) = await cur.fetchone()
                     blob = item.model_dump_json()
                     await cur.execute("INSERT INTO object_data (id, data) VALUES (%s, %s)", (obj_id, blob))
                     await conn.commit()
-                except Exception:
+                except aiomysql.IntegrityError as e:
+                    await conn.rollback()
+                    # 1062 = ER_DUP_ENTRY
+                    if e.args and e.args[0] == 1062:
+                        raise KeyAlreadyExistsError(
+                            key=key, additional_message=f"MySQL table {self._bucket_name} already has key {key}"
+                        ) from e
+                    raise
+                except Exception:
                     await conn.rollback()
                     raise

---

203-214: Delete by object_meta only; current JOIN prevents cleanup if object_data row is missing.

If a partial write left object_meta without object_data, the current inner-join delete won’t match and will wrongly raise NoSuchKeyError. Deleting from object_meta suffices; the FK cascade cleans up object_data when present.

Apply this diff:

-                    await cur.execute(
-                        """
-                        DELETE m, d
-                        FROM object_meta m
-                        JOIN object_data d USING(id)
-                        WHERE m.path=%s
-                    """, (key, ))
+                    await cur.execute(
+                        """
+                        DELETE FROM object_meta
+                        WHERE path=%s
+                        """,
+                        (key,),
+                    )

packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py (1)

72-78: Mandate: Explicitly set bucket region on creation and handle us-east-1 correctly

To avoid cross-region errors (IllegalLocationConstraintException), you must pass a CreateBucketConfiguration when the client’s region isn’t us-east-1. Please update the logic in packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py (around lines 75–78) as follows:

• Detect the configured region from self._client_args["region_name"].
• If it’s set and not "us-east-1", call create_bucket with CreateBucketConfiguration={'LocationConstraint': region}.
• Otherwise (or for us-east-1), call create_bucket without the configuration block.

Suggested diff:

-           await self._client.create_bucket(Bucket=self.bucket_name)
+           region = self._client_args.get("region_name")
+           if region and region != "us-east-1":
+               await self._client.create_bucket(
+                   Bucket=self.bucket_name,
+                   CreateBucketConfiguration={'LocationConstraint': region}
+               )
+           else:
+               await self._client.create_bucket(Bucket=self.bucket_name)

Additionally, ensure that the IAM policy attached to the client’s credentials grants both:

• s3:HeadBucket (to check for bucket existence), and
• s3:CreateBucket (to create the bucket).

packages/nvidia_nat_s3/src/nat/plugins/s3/s3_object_store.py (2)

71-79: Bucket creation: handle non-us-east-1 regions.

AWS requires CreateBucketConfiguration outside us-east-1. Without it, create may fail on AWS (MinIO ignores region, so tests can pass locally).

         # Ensure the bucket exists
         try:
             await self._client.head_bucket(Bucket=self.bucket_name)
         except ClientError as e:
-            if e.response['Error']['Code'] == '404':
-                await self._client.create_bucket(Bucket=self.bucket_name)
+            if e.response['Error']['Code'] in ('404', 'NoSuchBucket', 'NotFound'):
+                create_args = {"Bucket": self.bucket_name}
+                # Only required on AWS when region != us-east-1
+                if (region := self._client.meta.config.region_name) and region != "us-east-1":
+                    create_args["CreateBucketConfiguration"] = {"LocationConstraint": region}
+                await self._client.create_bucket(**create_args)
                 logger.info("Created bucket %s", self.bucket_name)

---

152-167: Delete semantics: skip pre-fetch of object body and don’t raise on DeleteMarker.

• get_object just to check existence is expensive; use head_object.
• Raising NoSuchKeyError when DeleteMarker is True is incorrect for versioned buckets—S3 returns a marker on successful deletes. Treat that as success.

-    async def delete_object(self, key: str) -> None:
+    async def delete_object(self, key: str) -> None:
         if self._client is None:
             raise RuntimeError("Connection not established")
 
-        try:
-            await self._client.get_object(Bucket=self.bucket_name, Key=key)
-        except ClientError as e:
-            if e.response['Error']['Code'] == 'NoSuchKey':
-                raise NoSuchKeyError(key=key, additional_message=str(e)) from e
-            raise
-
-        results = await self._client.delete_object(Bucket=self.bucket_name, Key=key)
-
-        if results.get('DeleteMarker', False):
-            raise NoSuchKeyError(key=key, additional_message="Object was a delete marker")
+        # Check existence cheaply
+        try:
+            await self._client.head_object(Bucket=self.bucket_name, Key=key)
+        except ClientError as e:
+            if e.response['Error']['Code'] in ('NoSuchKey', '404', 'NotFound'):
+                raise NoSuchKeyError(key=key, additional_message=str(e)) from e
+            raise
+
+        # Proceed with deletion; treat DeleteMarker as success in versioned buckets
+        await self._client.delete_object(Bucket=self.bucket_name, Key=key)

packages/nvidia_nat_mysql/src/nat/plugins/mysql/object_store.py (2)

41-49: Avoid import-time int coercion and fix env var placeholders in descriptions

• Import-time int(os.environ.get(...)) can raise on malformed env values at import. Prefer default_factory to defer evaluation.
• Use f-strings so {HOST_ENV}/{DEFAULT_HOST} are interpolated, not shown literally.

Apply:

-    host: str = Field(
-        default=os.environ.get(HOST_ENV, DEFAULT_HOST),
-        description="The host of the MySQL server"
-        " (uses {HOST_ENV} if unspecified; falls back to {DEFAULT_HOST})",
-    )
-    port: int = Field(
-        default=int(os.environ.get(PORT_ENV, DEFAULT_PORT)),
-        description="The port of the MySQL server"
-        " (uses {PORT_ENV} if unspecified; falls back to {DEFAULT_PORT})",
-    )
+    host: str = Field(
+        default=os.environ.get(HOST_ENV, DEFAULT_HOST),
+        description=f"The host of the MySQL server (uses {HOST_ENV} if unspecified; falls back to {DEFAULT_HOST})",
+    )
+    port: int = Field(
+        default_factory=lambda: int(os.environ.get(PORT_ENV, DEFAULT_PORT)),
+        description=f"The port of the MySQL server (uses {PORT_ENV} if unspecified; falls back to {DEFAULT_PORT})",
+    )

---

50-57: Fix typos and interpolation inconsistencies in username/password descriptions

Correct “unspecifed” → “unspecified” and interpolate {PASSWORD_ENV}.

Apply:

-    username: str | None = Field(
-        default=os.environ.get(USERNAME_ENV),
-        description=f"The username used to connect to the MySQL server (uses {USERNAME_ENV} if unspecifed)",
-    )
-    password: str | None = Field(
-        default=os.environ.get(PASSWORD_ENV),
-        description="The password used to connect to the MySQL server (uses {PASSWORD_ENV} if unspecifed)",
-    )
+    username: str | None = Field(
+        default=os.environ.get(USERNAME_ENV),
+        description=f"The username used to connect to the MySQL server (uses {USERNAME_ENV} if unspecified)",
+    )
+    password: str | None = Field(
+        default=os.environ.get(PASSWORD_ENV),
+        description=f"The password used to connect to the MySQL server (uses {PASSWORD_ENV} if unspecified)",
+    )

examples/object_store/user_report/README.md (2)

20-20: Fix grammar (“And example tool” → “An example tool”).

User-facing doc.

-And example tool in the NeMo Agent toolkit that makes use of an Object Store to retrieve data.
+An example tool in the NeMo Agent toolkit that makes use of an Object Store to retrieve data.

---

238-244: Fix inconsistent user ID in example output (6789 vs 678901).

This mismatch can confuse readers.

-User report for 678901 with date latest added successfully
+User report for 6789 with date latest added successfully

packages/nvidia_nat_mysql/src/nat/plugins/mysql/mysql_object_store.py (1)

137-139: Ensure BLOB is bytes: encode JSON before insert.

model_dump_json() returns str; encode to UTF-8 to guarantee driver sends bytes to LONGBLOB and decode() on read is valid.

-                    blob = item.model_dump_json()
+                    blob = item.model_dump_json().encode("utf-8")
                     await cur.execute("INSERT INTO object_data (id, data) VALUES (%s, %s)", (obj_id, blob))

Apply the same change in upsert_object below.