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

# List contingency schedule changes

> The operator-recorded contingency schedule changes, keyset-paged newest announced first. Each row is an out-of-band-received Núclea announcement (OP002 §14 = telephone/e-mail) recorded verbatim by an operator (decision #1); br-siloc parses no Núclea schedule wire and computes no schedule (D-4). Read-only — the feed is projected, never mutated through this surface.



## OpenAPI

````yaml en/openapi/v3-current/siloc.yaml get /api/v1/siloc/schedule/changes
openapi: 3.1.0
info:
  description: >-
    OpenAPI 3.1 surface for Lerian SILOC, the participant-side rail connecting
    the institution to Núclea's SILOC deferred-net interbank settlement. It
    covers settlement-coverage capabilities, participant registry and
    operational status, regulated-certificate lifecycle, the card-domain message
    relay and its status, administrative replay of parked relay failures, OT
    settlement cycles and recálculo rounds, settlement instructions, ROC
    ingestion, operational alerts, contingency schedule changes, business-day
    calendar reads, and the audit trail.
  title: Lerian SILOC API
  version: 1.0.0
servers:
  - url: http://localhost:9820
security: []
paths:
  /api/v1/siloc/schedule/changes:
    get:
      tags:
        - Schedule
      summary: List contingency schedule changes
      description: >-
        The operator-recorded contingency schedule changes, keyset-paged newest
        announced first. Each row is an out-of-band-received Núclea announcement
        (OP002 §14 = telephone/e-mail) recorded verbatim by an operator
        (decision #1); br-siloc parses no Núclea schedule wire and computes no
        schedule (D-4). Read-only — the feed is projected, never mutated through
        this surface.
      operationId: listScheduleChanges
      parameters:
        - description: Opaque pagination cursor.
          explode: false
          in: query
          name: cursor
          schema:
            description: Opaque pagination cursor.
            type: string
        - description: Page size (default 50, max 200).
          explode: false
          in: query
          name: limit
          schema:
            default: 50
            description: Page size (default 50, max 200).
            format: int64
            maximum: 200
            minimum: 1
            type: integer
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ScheduleChangeListResponse'
          description: OK
        default:
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/Detail'
          description: Error
      security:
        - BearerAuth: []
components:
  schemas:
    ScheduleChangeListResponse:
      additionalProperties: false
      properties:
        hasMore:
          description: Whether more schedule changes exist beyond this page.
          type: boolean
        items:
          description: The page of schedule changes (never null; empty when none).
          items:
            $ref: '#/components/schemas/ScheduleChangeResponse'
          type:
            - array
            - 'null'
        nextCursor:
          description: Opaque cursor for the next page; omitted when the feed is exhausted.
          type: string
      required:
        - items
        - hasMore
      type: object
    Detail:
      additionalProperties: false
      properties:
        code:
          description: >-
            Stable, machine-readable domain error code scoped to the emitting
            service (format: <SERVICE>-NNNN).
          examples:
            - ERR-0001
          type: string
        detail:
          description: >-
            A human-readable explanation specific to this occurrence of the
            problem.
          examples:
            - Property foo is required but is missing.
          type: string
        errors:
          description: Optional list of individual error details
          items:
            $ref: '#/components/schemas/ErrorDetail'
          type:
            - array
            - 'null'
        instance:
          description: >-
            A URI reference that identifies the specific occurrence of the
            problem.
          examples:
            - https://example.com/error-log/abc123
          format: uri
          type: string
        status:
          description: HTTP status code
          examples:
            - 400
          format: int64
          type: integer
        title:
          description: >-
            A short, human-readable summary of the problem type. This value
            should not change between occurrences of the error.
          examples:
            - Bad Request
          type: string
        type:
          default: about:blank
          description: A URI reference to human-readable documentation for the error.
          examples:
            - https://example.com/errors/example
          format: uri
          type: string
      type: object
    ScheduleChangeResponse:
      additionalProperties: false
      properties:
        announcedAt:
          description: When the change was recorded (intake instant).
          format: date-time
          type: string
        effectiveAt:
          description: >-
            The announced instant the change takes effect, recorded verbatim
            (for a window prorrogação, the announced new close).
          format: date-time
          type: string
        id:
          description: Schedule change id.
          format: uuid
          type: string
        origin:
          description: >-
            Auditable origin — the announcing channel / upstream reference (e.g.
            "Núclea e-mail ref X").
          type: string
        reason:
          description: Why the schedule changed, as recorded by the operator.
          type: string
        windowSeq:
          description: >-
            The affected canonical window's grid sequence; omitted for a
            non-window-specific note.
          format: int64
          type: integer
      required:
        - id
        - reason
        - effectiveAt
        - origin
        - announcedAt
      type: object
    ErrorDetail:
      additionalProperties: false
      properties:
        location:
          description: >-
            Where the error occurred, e.g. 'body.items[3].tags' or
            'path.thing-id'
          type: string
        message:
          description: Error message text
          type: string
        value:
          description: The value at the given location
      type: object
  securitySchemes:
    BearerAuth:
      bearerFormat: JWT
      description: JWT bearer token issued by the identity provider.
      scheme: bearer
      type: http

````