notification.channel.register

Register a message channel and the SHAPE of its template (the fields the admin editor draws and the kernel validates). The channel key is open — the kernel never knows what ‘whatsapp’ means. Re-registering the same key updates the declaration, which is how a driver keeps its schema current across upgrades.

• Scope: extensions.write
• System: no
• Reachable from: POST /v1/commands/notification.channel.register (tenant credential) · MCP tool notification.channel.register · SDK client.call('notification.channel.register', …)
• Events: notification.config.updated

Input (JSON Schema)

{
  "properties": {
    "extension_id": {
      "anyOf": [
        {
          "minLength": 1,
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "key": {
      "pattern": "^[a-z][a-z0-9_]*$",
      "type": "string"
    },
    "label": {
      "maxLength": 80,
      "minLength": 1,
      "type": "string"
    },
    "notice": {
      "anyOf": [
        {
          "maxLength": 400,
          "minLength": 1,
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "variant_schema": {
      "items": {
        "properties": {
          "help": {
            "type": "string"
          },
          "label": {
            "minLength": 1,
            "type": "string"
          },
          "name": {
            "pattern": "^[a-z][a-z0-9_]*$",
            "type": "string"
          },
          "options": {
            "items": {
              "properties": {
                "label": {
                  "type": "string"
                },
                "value": {
                  "type": "string"
                }
              },
              "required": [
                "value",
                "label"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "required": {
            "type": "boolean"
          },
          "template": {
            "type": "boolean"
          },
          "type": {
            "enum": [
              "text",
              "multiline",
              "html",
              "select",
              "variable_list"
            ],
            "type": "string"
          }
        },
        "required": [
          "name",
          "label",
          "type"
        ],
        "type": "object"
      },
      "type": "array"
    }
  },
  "required": [
    "key",
    "label",
    "variant_schema"
  ],
  "type": "object"
}

Result (200)

{
  "additionalProperties": false,
  "properties": {
    "channel_key": {
      "type": "string"
    }
  },
  "required": [
    "channel_key"
  ],
  "type": "object"
}

Errors

validation_failed (400) · unauthorized (401) · forbidden (403) · conflict (409) · internal (500)