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

# One version, and what changed

> The rules as they were. `diff` goes from the version before (or `against`) to this one; with `against=current`, from this one to now.

Scope: `read`.



## OpenAPI

````yaml /openapi.json get /api/v1/brands/{slug}/versions/{number}
openapi: 3.1.0
info:
  title: artbucket
  version: '1'
  description: >-
    Agent-first asset management. The web UI is built on this API and nothing
    else, beside signing in at /api/auth. Send `Authorization: Bearer <key>`: a
    key works in one workspace with one scope, and scopes are a ladder: read <
    propose < write < admin. People signed in to the app carry a session cookie
    instead, and their scope is what their grants add up to: on the
    organization, the workspace, or single collections and assets. A scope shown
    as needed on the workspace is also enough on the one collection or asset a
    route acts on. Agents (MCP at POST /api/v1/mcp) usually get `propose`: what
    they add waits for a human.
servers:
  - url: http://localhost:3000
security:
  - bearer: []
  - session: []
  - {}
paths:
  /api/v1/brands/{slug}/versions/{number}:
    parameters:
      - name: slug
        in: path
        required: true
        description: Brand slug
        schema:
          type: string
      - name: number
        in: path
        required: true
        description: Version number
        schema:
          type: string
    get:
      summary: One version, and what changed
      description: >-
        The rules as they were. `diff` goes from the version before (or
        `against`) to this one; with `against=current`, from this one to now.


        Scope: `read`.
      parameters:
        - name: against
          in: query
          schema:
            type: string
          description: A version number, or "current"
      responses:
        '200':
          description: The version
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      number:
                        type: integer
                        minimum: -9007199254740991
                        maximum: 9007199254740991
                      kind:
                        type: string
                        enum:
                          - baseline
                          - edit
                          - restore
                      name:
                        type:
                          - string
                          - 'null'
                      actor:
                        type: string
                        description: >-
                          Who: a person's name, an API key's name, or "web" for
                          the app without an account
                      changed:
                        type: array
                        items:
                          type: string
                        description: Keys touched
                      restoredFrom:
                        anyOf:
                          - type: integer
                            minimum: -9007199254740991
                            maximum: 9007199254740991
                          - type: 'null'
                        description: 'For a restore: the version it put back'
                      summary:
                        type: string
                      rules:
                        type: array
                        items:
                          type: object
                          properties:
                            key:
                              type: string
                            context:
                              type:
                                - string
                                - 'null'
                            type:
                              type: string
                              enum:
                                - color
                                - text
                                - number
                                - list
                                - font
                            value: {}
                            usage:
                              type:
                                - string
                                - 'null'
                            position:
                              type: integer
                              minimum: -9007199254740991
                              maximum: 9007199254740991
                            assets:
                              type: array
                              items:
                                type: object
                                properties:
                                  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)$
                                  rendition:
                                    type:
                                      - string
                                      - 'null'
                                required:
                                  - id
                                  - rendition
                                additionalProperties: false
                          required:
                            - key
                            - context
                            - type
                            - value
                            - usage
                            - position
                            - assets
                          additionalProperties: false
                      createdAt:
                        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)))$
                      updatedAt:
                        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)))$
                        description: >-
                          Edits close together extend a version; this is its
                          last
                      against:
                        anyOf:
                          - anyOf:
                              - type: integer
                                minimum: -9007199254740991
                                maximum: 9007199254740991
                              - type: string
                                const: current
                          - type: 'null'
                      diff:
                        type: array
                        items:
                          type: object
                          propertyNames:
                            type: string
                          additionalProperties: {}
                        description: >-
                          added, removed, changed (field by field) or moved, per
                          rule
                    required:
                      - number
                      - kind
                      - name
                      - actor
                      - changed
                      - restoredFrom
                      - summary
                      - rules
                      - createdAt
                      - updatedAt
                      - against
                      - diff
                    additionalProperties: false
                required:
                  - data
                additionalProperties: false
        default:
          description: An error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      detail: {}
                    required:
                      - code
                      - message
                    additionalProperties: false
                required:
                  - error
                additionalProperties: false
components:
  securitySchemes:
    bearer:
      type: http
      scheme: bearer
      description: 'An API key: ab_...'
    session:
      type: apiKey
      in: cookie
      name: better-auth.session_token
      description: Signed in, at /api/auth

````