The documentation on Toolsets does not render working code

[agherasim]

Describe the Bug:
The documentation at https://adk.dev/tools-custom/#using-toolsets-with-agents, describing how to define Toolsets does not result in working code. A few problems:

• there is no name attribute to FunctionTool declaration, as the name is derived from the function or class __name__;
• the toolset is never called by the agent, and no get_tools method calls happen. This causes in the tools defined in toolset to not be found by agent and results in a fatal error.

Steps to Reproduce:
Please provide a numbered list of steps to reproduce the behavior:

1. Install google-akd
2. Create a new toolset, as described in the example
3. Create a new agent using agent.yaml definition, load agent in runner using from_config;
4. Import the toolset in the agent, using agent.yaml for definition

Expected Behavior:
The tools in the Toolset should be accessible to the agent defined in an agent.yaml.

Observed Behavior:
The tools defined in the Toolset cannot be found. When imported individually, the tools can be found and work as expected.

Environment Details:

• ADK Library Version (pip show google-adk): 1.31.1
• Desktop OS: macOS
• Python Version (python -V): Python 3.13.5

Model Information:

• Are you using LiteLLM: Yes
• Which model is being used: gemini-3.1-flash-lite-preview

---

🟡 Optional Information

Providing this information greatly speeds up the resolution process.

Minimal Reproduction Code:
Please provide a code snippet or a link to a Gist/repo that isolates the issue.

• see https://adk.dev/tools-custom/#example-a-simple-math-toolset

How often has this issue occurred?:

• Always (100%)