Class CallToolResponse

Namespace

ModelContextProtocol.Protocol.Types

Assembly

ModelContextProtocol.dll

The server's response to a tool call.

Any errors that originate from the tool SHOULD be reported inside the result object, with isError set to true, not as an MCP protocol-level error response. Otherwise, the LLM would not be able to see that an error occurred and self-correct.

However, any errors in finding the tool, an error indicating that the server does not support tool calls, or any other exceptional conditions, should be reported as an MCP error response. See the schema for details

public class CallToolResponse

Inheritance

object

CallToolResponse

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Properties

Content

The server's response to a tools/call request from the client.

[JsonPropertyName("content")]
public List<Content> Content { get; set; }

Property Value

List<Content>

IsError

Whether the tool call was unsuccessful. If true, the call was unsuccessful.

[JsonPropertyName("isError")]
public bool IsError { get; set; }

Property Value

bool