action botschaft_slack_post_slack_post { label: "Slack Post" provider: botschaft method: POST path: "/slack" encoding: json input: { type: "object" properties: { authorization: { type: "string" } base64_message: { type: "string" } channel: { type: "string" } message: { type: "string" } } required: ["channel"] additionalProperties: false } output: { type: "object" } }