operations:
  create:
    description: "Create new page"
    input:
      required: [slug, title, level, layout]
      optional: [description, is_active]
    output: PageView
    acl_required: ["page:create"]
    validation:
      - slug_unique: "Page slug must be unique"
      - slug_format: "Slug must be URL-safe"
      - level_valid: "Level must be 1-5"
    errors:
      - CONFLICT: "Page with this slug already exists"
      - VALIDATION_ERROR: "Invalid input"
      
  read:
    description: "Get page by ID or slug"
    input:
      optional: [id, slug]
    output: PageView
    acl_required: []
    public: true
    errors:
      - NOT_FOUND: "Page not found"
      - VALIDATION_ERROR: "Must provide id or slug"
      
  update:
    description: "Update page"
    input:
      required: [id]
      optional: [slug, title, description, level, layout, is_active]
    output: PageView
    acl_required: ["page:update"]
    errors:
      - NOT_FOUND: "Page not found"
      - CONFLICT: "Slug already in use"
      
  delete:
    description: "Delete page"
    input:
      required: [id]
    output: boolean
    acl_required: ["page:delete"]
    cascade: true
    errors:
      - NOT_FOUND: "Page not found"
      
  list:
    description: "List pages with filtering"
    input:
      optional: [level, is_active, page, limit, sort]
    output: PageView[]
    acl_required: []
    public: true
    pagination: true
    errors: []
      
  get_by_level:
    description: "Get all pages for a specific level"
    input:
      required: [level]
    output: PageView[]
    acl_required: []
    public: true
    errors: []