> ## Documentation Index
> Fetch the complete documentation index at: https://agno-v2.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Agent with Tools

> Give a Vertex AI Claude agent a web search tool and let Agno run the tool-use loop.

Attach `WebSearchTools` to a Vertex AI Claude agent to answer questions with current web results.

## Code

```python tool_use.py theme={null}
from agno.agent import Agent
from agno.models.vertexai.claude import Claude
from agno.tools.websearch import WebSearchTools

agent = Agent(
    model=Claude(id="claude-sonnet-4@20250514"),
    tools=[WebSearchTools()],
    markdown=True,
)
agent.print_response("Whats happening in France?")
```

## Usage

<Snippet file="create-venv-step.mdx" />

**1. Set your environment variables**

```bash Mac theme={null}
export CLOUD_ML_REGION=xxx
export GOOGLE_CLOUD_PROJECT=xxx
```

```bash Windows theme={null}
setx CLOUD_ML_REGION xxx
setx GOOGLE_CLOUD_PROJECT xxx
```

**2. Authenticate your CLI session**

```bash theme={null}
gcloud auth application-default login
```

> [!NOTE]
>
> You don't need to authenticate your CLI every time.

**3. Install dependencies**

```bash theme={null}
uv pip install -U 'anthropic[vertex]' ddgs agno
```

**4. Run Agent**

Save the code above as `tool_use.py`, then run:

```bash theme={null}
python tool_use.py
```


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