> ## 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. # Add a brand rule > One per key and context; 409 when it exists. `value` must match `type`. `?brand=` picks the brand; the default otherwise. Every change to rules lands in the brand's history. Scope: `write`. ## OpenAPI ````yaml /openapi.json post /api/v1/brand/rules 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 `: 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/brand/rules: post: summary: Add a brand rule description: >- One per key and context; 409 when it exists. `value` must match `type`. `?brand=` picks the brand; the default otherwise. Every change to rules lands in the brand's history. Scope: `write`. parameters: - name: brand in: query schema: type: string description: A brand's slug requestBody: required: true content: application/json: schema: oneOf: - type: object properties: key: type: string maxLength: 120 pattern: ^[a-z][a-zA-Z0-9]*(\.[a-z][a-zA-Z0-9]*)*$ context: description: Only in this context; omit for the default anyOf: - type: string maxLength: 64 pattern: ^[a-z0-9]+(-[a-z0-9]+)*$ - type: 'null' type: type: string const: color value: type: string pattern: ^#([0-9a-fA-F]{6}|[0-9a-fA-F]{8})$ usage: description: How and when to use it, in Markdown (GFM) anyOf: - type: string maxLength: 10000 - type: 'null' assets: description: >- Assets it points at, in order: an id, or { id, rendition }. Replaces the list maxItems: 24 type: array items: anyOf: - 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)$ - 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: anyOf: - description: >- A rendition spec, e.g. w_512,f_png; null for the original type: string maxLength: 120 - type: 'null' required: - id required: - key - type - value additionalProperties: false - type: object properties: key: type: string maxLength: 120 pattern: ^[a-z][a-zA-Z0-9]*(\.[a-z][a-zA-Z0-9]*)*$ context: description: Only in this context; omit for the default anyOf: - type: string maxLength: 64 pattern: ^[a-z0-9]+(-[a-z0-9]+)*$ - type: 'null' type: type: string const: text value: type: string minLength: 1 maxLength: 20000 description: Markdown (GFM) usage: description: How and when to use it, in Markdown (GFM) anyOf: - type: string maxLength: 10000 - type: 'null' assets: description: >- Assets it points at, in order: an id, or { id, rendition }. Replaces the list maxItems: 24 type: array items: anyOf: - 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)$ - 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: anyOf: - description: >- A rendition spec, e.g. w_512,f_png; null for the original type: string maxLength: 120 - type: 'null' required: - id required: - key - type - value additionalProperties: false - type: object properties: key: type: string maxLength: 120 pattern: ^[a-z][a-zA-Z0-9]*(\.[a-z][a-zA-Z0-9]*)*$ context: description: Only in this context; omit for the default anyOf: - type: string maxLength: 64 pattern: ^[a-z0-9]+(-[a-z0-9]+)*$ - type: 'null' type: type: string const: number value: type: number usage: description: How and when to use it, in Markdown (GFM) anyOf: - type: string maxLength: 10000 - type: 'null' assets: description: >- Assets it points at, in order: an id, or { id, rendition }. Replaces the list maxItems: 24 type: array items: anyOf: - 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)$ - 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: anyOf: - description: >- A rendition spec, e.g. w_512,f_png; null for the original type: string maxLength: 120 - type: 'null' required: - id required: - key - type - value additionalProperties: false - type: object properties: key: type: string maxLength: 120 pattern: ^[a-z][a-zA-Z0-9]*(\.[a-z][a-zA-Z0-9]*)*$ context: description: Only in this context; omit for the default anyOf: - type: string maxLength: 64 pattern: ^[a-z0-9]+(-[a-z0-9]+)*$ - type: 'null' type: type: string const: list value: minItems: 1 maxItems: 100 type: array items: anyOf: - type: string minLength: 1 maxLength: 500 - type: number usage: description: How and when to use it, in Markdown (GFM) anyOf: - type: string maxLength: 10000 - type: 'null' assets: description: >- Assets it points at, in order: an id, or { id, rendition }. Replaces the list maxItems: 24 type: array items: anyOf: - 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)$ - 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: anyOf: - description: >- A rendition spec, e.g. w_512,f_png; null for the original type: string maxLength: 120 - type: 'null' required: - id required: - key - type - value additionalProperties: false - type: object properties: key: type: string maxLength: 120 pattern: ^[a-z][a-zA-Z0-9]*(\.[a-z][a-zA-Z0-9]*)*$ context: description: Only in this context; omit for the default anyOf: - type: string maxLength: 64 pattern: ^[a-z0-9]+(-[a-z0-9]+)*$ - type: 'null' type: type: string const: font value: anyOf: - type: string minLength: 1 maxLength: 120 - type: object properties: family: type: string minLength: 1 maxLength: 120 size: description: Pixels type: number exclusiveMinimum: 0 maximum: 1000 weight: description: 400 regular, 700 bold type: integer minimum: 1 maximum: 1000 required: - family additionalProperties: false usage: description: How and when to use it, in Markdown (GFM) anyOf: - type: string maxLength: 10000 - type: 'null' assets: description: >- Assets it points at, in order: an id, or { id, rendition }. Replaces the list maxItems: 24 type: array items: anyOf: - 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)$ - 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: anyOf: - description: >- A rendition spec, e.g. w_512,f_png; null for the original type: string maxLength: 120 - type: 'null' required: - id required: - key - type - value additionalProperties: false responses: '201': description: Created content: application/json: schema: type: object properties: data: 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)$ brand: type: string description: The brand's slug key: type: string description: Dotted, e.g. color.primary context: description: 'null: the default' type: - string - 'null' type: type: string enum: - color - text - number - list - font value: anyOf: - type: string - type: number - type: array items: type: - string - number - type: object properties: family: type: string minLength: 1 maxLength: 120 size: description: Pixels type: number exclusiveMinimum: 0 maximum: 1000 weight: description: 400 regular, 700 bold type: integer minimum: 1 maximum: 1000 required: - family additionalProperties: false usage: type: - string - 'null' 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' title: type: - string - 'null' filename: type: string mime: type: string width: anyOf: - type: integer minimum: -9007199254740991 maximum: 9007199254740991 - type: 'null' height: anyOf: - type: integer minimum: -9007199254740991 maximum: 9007199254740991 - type: 'null' required: - id - rendition - title - filename - mime - width - height additionalProperties: false description: >- Assets it points at, in order: /a/{id}, or /a/{id}/{rendition} when it names one 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)))$ required: - id - brand - key - context - type - value - usage - assets - updatedAt 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 ````