action netlify_create_site_asset { label: "createSiteAsset" provider: netlify method: POST path: "/sites/{site_id}/assets" encoding: json input: { type: "object" properties: { content_type: { type: "string" } name: { type: "string" } size: { type: "string" } visibility: { type: "string" } } required: ["content_type", "name", "size"] additionalProperties: false } output: { type: "object" additionalProperties: true } }