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

# Assign a weekly pattern or rotation

> Assigns a weekly pattern, rotation or historical fixed rotation with a retained anchor week. Daily patterns are not assignable. An unchanged retry returns the recorded assignment.



## OpenAPI

````yaml /api-reference/workforce/openapi.json post /api/v1/workforce/rotation-assignments
openapi: 3.1.0
info:
  title: Atlas workforce API
  version: 2026-10-preview
  description: >-
    Authenticated workforce staffing-to-draft operations. Released together with
    matching MCP operations. Deploy the reviewed native guard migrations before
    enabling this feature.
servers:
  - url: /
security:
  - AtlasIntegrationBearer: []
paths:
  /api/v1/workforce/rotation-assignments:
    post:
      summary: Assign a weekly pattern or rotation
      description: >-
        Assigns a weekly pattern, rotation or historical fixed rotation with a
        retained anchor week. Daily patterns are not assignable. An unchanged
        retry returns the recorded assignment.
      operationId: assign_rotation
      parameters:
        - name: X-Workspace-Id
          in: header
          required: true
          schema:
            type: string
            format: uuid
          description: >-
            Selector within saved grants and current issuer authority; never
            grants authority.
        - name: Idempotency-Key
          in: header
          required: true
          schema:
            type: string
            format: uuid
          description: >-
            Stable native operation key. Reuse it as request_key through MCP; a
            changed body under the same key conflicts.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WorkforceRotationAssignmentCreate'
      responses:
        '200':
          description: Native typed result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WorkforcePlanningResult'
        '400':
          description: Missing or malformed transport fields
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Missing, invalid or expired bearer
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Saved grant or current authority denied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Scoped resource not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '409':
          description: Stale source/revision or conflicting request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '413':
          description: Body exceeds 64 KiB
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '415':
          description: Content-Type must be application/json
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '422':
          description: Invalid or unsupported input
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Concurrent compute limit; retry after 5 seconds
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '503':
          description: Required evidence or service unavailable
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    WorkforceRotationAssignmentCreate:
      type: object
      properties:
        template_id:
          type: string
          format: uuid
          pattern: >-
            ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
        subject:
          oneOf:
            - type: object
              properties:
                kind:
                  type: string
                  const: person
                id:
                  type: string
                  format: uuid
                  pattern: >-
                    ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
              required:
                - kind
                - id
              additionalProperties: false
            - type: object
              properties:
                kind:
                  type: string
                  const: assignment
                id:
                  type: string
                  format: uuid
                  pattern: >-
                    ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
              required:
                - kind
                - id
              additionalProperties: false
        anchor_week_start:
          type: string
        valid_from:
          type: string
        valid_to:
          default: null
          anyOf:
            - type: string
            - type: 'null'
        reason:
          type: string
          minLength: 1
          maxLength: 2000
      required:
        - template_id
        - subject
        - anchor_week_start
        - valid_from
        - reason
      additionalProperties: false
    WorkforcePlanningResult:
      type: object
      description: >-
        Native typed outcome. Depending on the operation: records and effective
        revisions, `issues` with code, field path, severity and source
        references, applied constraints, soft preference effects, affected
        drafts and future published commitments with `complete`, missing or
        unsupported evidence, `replayed` for an exact retry and verified effect
        references. Authored availability, preference and pattern bodies
        round-trip unchanged.
      additionalProperties: true
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            details: {}
          required:
            - code
            - message
          additionalProperties: false
      required:
        - error
      additionalProperties: false
  securitySchemes:
    AtlasIntegrationBearer:
      type: http
      scheme: bearer
      bearerFormat: atlas_mcp_
      description: >-
        Existing Atlas integration connection with explicit api:connect plus
        appropriate native domain grants. atlas_ingest_ and browser cookies are
        not accepted.

````

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