Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

ListSpans

Retrieves AI agent execution traces for a session, providing granular visibility into agent orchestration flows, LLM interactions, and tool invocations.

Request Syntax


GET /assistants/assistantId/sessions/sessionId/spans?maxResults=maxResults&nextToken=nextToken HTTP/1.1

URI Request Parameters

The request uses the following URI parameters.

assistantId

UUID or ARN of the Connect AI Assistant resource

Pattern: [a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$|^arn:[a-z-]*?:wisdom:[a-z0-9-]*?:[0-9]{12}:[a-z-]*?/[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}(?:/[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}){0,2}

Required: Yes

maxResults

Maximum number of spans to return per page

Valid Range: Minimum value of 1. Maximum value of 100.

nextToken

Pagination token for retrieving the next page of results

Length Constraints: Minimum length of 1. Maximum length of 2048.

sessionId

UUID or ARN of the Connect AI Session resource

Required: Yes

Request Body

The request does not have a request body.

Response Syntax


HTTP/1.1 200
Content-type: application/json

{
   "nextToken": "string",
   "spans": [ 
      { 
         "assistantId": "string",
         "attributes": { 
            "agentId": "string",
            "aiAgentArn": "string",
            "aiAgentId": "string",
            "aiAgentInvoker": "string",
            "aiAgentName": "string",
            "aiAgentOrchestratorUseCase": "string",
            "aiAgentType": "string",
            "aiAgentVersion": number,
            "cacheReadInputTokens": number,
            "cacheWriteInputTokens": number,
            "contactId": "string",
            "errorType": "string",
            "initialContactId": "string",
            "inputMessages": [ 
               { 
                  "messageId": "string",
                  "participant": "string",
                  "timestamp": number,
                  "values": [ 
                     { ... }
                  ]
               }
            ],
            "instanceArn": "string",
            "operationName": "string",
            "outputMessages": [ 
               { 
                  "messageId": "string",
                  "participant": "string",
                  "timestamp": number,
                  "values": [ 
                     { ... }
                  ]
               }
            ],
            "promptArn": "string",
            "promptId": "string",
            "promptName": "string",
            "promptType": "string",
            "promptVersion": number,
            "providerName": "string",
            "requestMaxTokens": number,
            "requestModel": "string",
            "responseFinishReasons": [ "string" ],
            "responseModel": "string",
            "sessionName": "string",
            "systemInstructions": [ 
               { ... }
            ],
            "temperature": number,
            "topP": number,
            "usageInputTokens": number,
            "usageOutputTokens": number,
            "usageTotalTokens": number
         },
         "endTimestamp": number,
         "parentSpanId": "string",
         "requestId": "string",
         "sessionId": "string",
         "spanId": "string",
         "spanName": "string",
         "spanType": "string",
         "startTimestamp": number,
         "status": "string"
      }
   ]
}

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

nextToken

Pagination token for retrieving additional results

Type: String

Length Constraints: Minimum length of 1. Maximum length of 2048.

spans

Array of span objects for the session

Type: Array of Span objects

Array Members: Minimum number of 0 items. Maximum number of 100 items.

Errors

For information about the errors that are common to all actions, see Common Errors.

AccessDeniedException

You do not have sufficient access to perform this action.

HTTP Status Code: 403

ResourceNotFoundException

The specified resource does not exist.

resourceName: The specified resource name.

HTTP Status Code: 404

ValidationException

The input fails to satisfy the constraints specified by a service.

HTTP Status Code: 400