> ## Documentation Index
> Fetch the complete documentation index at: https://www.traceloop.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Execute action-advancement evaluator

> Measure whether the assistant made progress toward at least one user goal in a conversation

**Request Body:**
- `input.messages` (string, required): JSON array of the conversation messages assembled from the trace



## OpenAPI

````yaml post /v2/evaluators/action-advancement/execute
openapi: 3.0.0
info:
  title: Traceloop API
  version: 1.0.0
  contact: {}
servers:
  - url: https://api.traceloop.com
security: []
paths:
  /v2/evaluators/action-advancement/execute:
    post:
      tags:
        - evaluators
      summary: Execute action-advancement evaluator
      description: >-
        Measure whether the assistant made progress toward at least one user
        goal in a conversation


        **Request Body:**

        - `input.messages` (string, required): JSON array of the conversation
        messages assembled from the trace
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/request.ActionAdvancementRequest'
        description: Request body
        required: true
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/response.ActionAdvancementResponse'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/response.ErrorResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/response.ErrorResponse'
      security:
        - BearerAuth: []
components:
  schemas:
    request.ActionAdvancementRequest:
      properties:
        input:
          $ref: '#/components/schemas/request.ActionAdvancementInput'
      required:
        - input
      type: object
    response.ActionAdvancementResponse:
      properties:
        pass:
          example: true
          type: boolean
        reason:
          example: >-
            The assistant advanced the user's goal by booking the requested
            flight
          type: string
      type: object
    response.ErrorResponse:
      description: Standard error response structure
      properties:
        error:
          example: error message
          type: string
      type: object
    request.ActionAdvancementInput:
      properties:
        messages:
          example: >-
            [{"role":"user","content":"Book me a flight to
            Paris"},{"role":"assistant","content":"I found 3 flights to Paris.
            Booking the cheapest one now."}]
          type: string
      required:
        - messages
      type: object
  securitySchemes:
    BearerAuth:
      description: Type "Bearer" followed by a space and JWT token.
      in: header
      name: Authorization
      type: apiKey

````