HostedToolKind

Namespace Tracon · Assembly Tracon.Abstractions.dll

The kinds of tool a model provider runs on its own side, which a host registers in code with AddHostedTool.

[JsonConverter(typeof(JsonStringEnumConverter<HostedToolKind>))]
public enum HostedToolKind

Fields

CodeInterpreter = 1

The provider runs code in its own sandbox. Maps to HostedCodeInterpreterTool.

FileSearch = 2

The provider searches a vector store of the caller’s account. Maps to HostedFileSearchTool.

WebSearch = 0

The provider searches the web. Maps to HostedWebSearchTool.

Remarks

A hosted tool is not a function Tracon calls: the provider runs it inside the model call and the response carries the call and its outcome. Tracon therefore has no timeout, approval or permission to put in front of it, and the data it works on goes to the provider the model call already goes to.

Image generation and hosted MCP servers are not kinds here. Generated images enter the history as bytes, which Tracon turns into an attachment through its own generate_image tool, and a hosted MCP server has security questions of its own.

Written as a name in JSON, the same convention ToolEffect follows.