Python port of the JS examples/mcp/tool-filter-example.ts. It shows how to:

• Run the filesystem MCP server locally via npx.
• Apply a static tool filter so only specific tools are exposed to the model.
• Observe that blocked tools are not available.
• Enable require_approval="always" and auto-approve interruptions in code so the HITL path is exercised.

Run it with:

uv run python examples/mcp/tool_filter_example/main.py

Prerequisites:

• npx available on your PATH.
• OPENAI_API_KEY set for the model calls.