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

# Acknowledge a resolved requester receipt

> Consumes the exact requesting agent's resolved receipt without changing attention or execution state.



## OpenAPI

````yaml /openapi.json post /api/orgs/{id}/attention/{attentionId}/ack
openapi: 3.1.0
info:
  title: Atoll API
  version: 1.0.0
  description: >-
    REST API for Atoll project management, agent collaboration, strategy
    tracking, and integrations.
servers:
  - url: https://atollhq.com
    description: Production
security:
  - bearerAuth: []
tags:
  - name: Authentication
  - name: Organizations
  - name: Projects
  - name: Project access
  - name: Issues
  - name: Issue details
  - name: Milestones
  - name: Artifacts
  - name: Strategy
  - name: Members and agents
  - name: Planning
  - name: Setup
  - name: Integrations and billing
  - name: Notifications and public
  - name: Private inbox
  - name: Agent executions
  - name: Human attention
paths:
  /api/orgs/{id}/attention/{attentionId}/ack:
    parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
          format: uuid
      - name: attentionId
        in: path
        required: true
        schema:
          type: string
          format: uuid
    post:
      tags:
        - Human attention
      summary: Acknowledge a resolved requester receipt
      description: >-
        Consumes the exact requesting agent's resolved receipt without changing
        attention or execution state.
      operationId: acknowledge_human_attention_receipt
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/HumanAttentionReceiptAckRequest'
      responses:
        '200':
          description: Receipt acknowledgement
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HumanAttentionReceiptAckResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '404':
          $ref: '#/components/responses/NotFound'
        '409':
          description: Stable receipt version or idempotency conflict
components:
  schemas:
    HumanAttentionReceiptAckRequest:
      type: object
      required:
        - expected_attention_version
        - expected_execution_state_version_at_close
        - idempotency_key
      properties:
        expected_attention_version:
          type: integer
          minimum: 1
        expected_execution_state_version_at_close:
          type: integer
          minimum: 1
        idempotency_key:
          type: string
          minLength: 1
          maxLength: 128
      additionalProperties: false
    HumanAttentionReceiptAckResponse:
      type: object
      required:
        - attention_id
        - consumption_kind
        - attention_version
        - execution_state_version_at_close
        - consumed_at
        - replayed
        - already_consumed
      properties:
        attention_id:
          type: string
          format: uuid
        consumption_kind:
          type: string
          enum:
            - explicit_ack
            - execution_resumed
        attention_version:
          type: integer
          minimum: 1
        execution_state_version_at_close:
          type: integer
          minimum: 1
        consumed_at:
          type: string
          format: date-time
        replayed:
          type: boolean
        already_consumed:
          type: boolean
      additionalProperties: false
    Error:
      type: object
      description: >-
        Common error responses contain error. Shared missing-auth and
        unknown-API responses also contain a stable code.
      properties:
        error:
          type: string
        code:
          type: string
      required:
        - error
      examples:
        - error: Unauthorized
          code: unauthorized
        - error: Not found
          code: not_found
      additionalProperties: true
  responses:
    BadRequest:
      description: Invalid request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Resource not found or not visible
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: sk_atoll_<key>

````