# ToolEffect

> Tracon documentation. Tracon is a .NET package family that adds a control
> plane on Microsoft Agent Framework, published as NuGet packages that run
> inside your own ASP.NET Core application.
>
> Page: https://tracon.dev/http-api/schemas/tooleffect/
> Summary: OpenAPI request or response schema for ToolEffect, including required fields, defaults, constraints, and linked nested types.

[← All HTTP schemas](/http-api/schemas/)

Classifies the blast radius of a tool call.

**Shape:** enum: `Read`, `Write`, `Destructive`, `External`

**Allowed values:** `Read`, `Write`, `Destructive`, `External`