> ## 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. # Create a dated member atomically > Requires workforce write and current manage_workforce_roster. Subject is nested and never identifies the acting principal. Enforce mode requires employment_assignment_id. Validates current assignment, person, overlap and FTE; any needed Agent slot rolls back with a failed membership. ## OpenAPI ````yaml /api-reference/workforce/openapi.json post /api/v1/workforce/scheduling-groups/{groupId}/members 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/scheduling-groups/{groupId}/members: post: summary: Create a dated member atomically description: >- Requires workforce write and current manage_workforce_roster. Subject is nested and never identifies the acting principal. Enforce mode requires employment_assignment_id. Validates current assignment, person, overlap and FTE; any needed Agent slot rolls back with a failed membership. operationId: create_scheduling_group_member 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: groupId in: path required: true schema: type: string format: uuid - name: Idempotency-Key in: header required: true schema: type: string format: uuid description: Retain the exact key and body across retries and transports. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/SchedulingMemberCreate' responses: '200': description: >- Authorized native result. Configuration success does not establish operational readiness. content: application/json: schema: $ref: '#/components/schemas/ConfigurationReceipt' '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' '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: $ref: '#/components/schemas/Error' components: schemas: SchedulingMemberCreate: type: object properties: request_key: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ subject: anyOf: - type: object properties: 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: - person_id additionalProperties: false - type: object properties: employment_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: - employment_assignment_id additionalProperties: false valid_from: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$ valid_to: default: null anyOf: - type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$ - type: 'null' is_primary: default: false type: boolean fte_weight: default: 1 type: number exclusiveMinimum: 0 maximum: 1 member_state: default: active type: string enum: - active - on_leave - in_training - ramping reason: type: string minLength: 1 maxLength: 2000 required: - subject - valid_from - reason additionalProperties: false ConfigurationReceipt: type: object properties: outcome: const: committed replayed: type: boolean request_key: type: string format: uuid record_id: type: string format: uuid request: type: object description: >- Immutable original actor, person, kind, parent and configuration evidence. record: type: object description: >- Current native group or membership row; the original request is retained separately. required: - outcome - replayed - request_key - record_id - request - record 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. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.