Agent design
Tool schemas are product interfaces for agents
An agent can only choose tools well when names, descriptions, and input requirements make actions understandable.
Aryan (@istmX)3 min read
Start with a clear boundary
Name tools by intent and give each one a clear outcome. A large generic tool with many unrelated arguments makes the model’s choice harder.
Handle failure deliberately
Validate inputs and permissions in application code. A model may propose a call, but the service must decide whether it is allowed.
Make the result understandable
Small composable tools are easier to observe and retry. Return structured errors that help correct a call without exposing internals.