Why should tool descriptions be precise?
Why B is the answer
The model uses them to choose and call tools
The description is what the model reads when it decides.
In detail
- The model reads the description to decide.
- The description is the interface for a model.
Use case
An illustrative scenario, not a real incident.
Two tools have vague names, and the agent picks wrongly. Better descriptions fix it.
See it in different ways
sequenceDiagram participant M as Model participant A as Application participant T as Tool M->>A: Tool name and arguments A->>A: Validate arguments A->>T: Call T-->>A: Result or error A-->>M: Result as context
sequenceDiagram participant M as Model participant A as Application participant T as Tool M->>A: Tool name and arguments A->>A: Validate against the schema A->>T: Run, with an idempotency key T-->>A: Short result or clear error A-->>M: Result as context
flowchart LR S0["Model reads descriptions"] --> S1["Chooses a tool"] --> S2["Fills arguments"]
Key point: Models read tool descriptions.
Why the other options are wrong
- A. They are only displayed to the end users
- The model reads them too.
- C. They reduce the model's GPU memory requirement
- They do not change GPU memory.
- D. They replace the need to validate the arguments
- You still validate.