Post a test message to verify delivery

veryfront__check_channel

Requires project.channels.write.

Access

Requires a user connection for slack.

Call type: Can change resources.

Arguments

FieldTypeRequiredDescription and constraints
project_referencestringNoProject ID or slug. Requires a person's credential; agent, run, and service-account callers are forbidden.
channel_idstringYesChannel ID from list_channels Format: uuid.
slack_channel_idstringYesSlack channel for the test message. Slack refusals return status failed with a failure code. A missing Slack connection returns validation-failed; a transient connection refresh failure returns external-service-error. Minimum length: 1. Maximum length: 255.
textstringNoMessage text, 1-4000 characters; default 'Veryfront Slack connection test' Minimum length: 1. Maximum length: 4000.

Example request

Send this JSON-RPC request through an initialized MCP client. Replace sample identifiers and values before calling the tool. See MCP client setup.

json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "veryfront__check_channel",
    "arguments": {
      "channel_id": "00000000-0000-4000-8000-000000000000",
      "slack_channel_id": "example"
    }
  }
}

Result

The published output shape is summarized below. Inspect both the MCP response content and isError when handling a call.

FieldTypeRequiredDescription and constraints
channel_idstringYesThe channel id returned by the tool. Format: uuid.
slack_channel_idstringYesThe slack channel id returned by the tool.
statusstringYesLifecycle status for the returned record. Values: "delivered", "failed".
message_idstring or nullYesThe message id returned by the tool.
failure_codestring or nullYesThe failure code returned by the tool.
retryablebooleanYesThe retryable returned by the tool.
checked_atstringYesThe checked at returned by the tool.

Full schemas

json
{
  "type": "object",
  "properties": {
    "project_reference": {
      "type": "string",
      "description": "Project ID or slug. Requires a person's credential; agent, run, and service-account callers are forbidden."
    },
    "channel_id": {
      "type": "string",
      "format": "uuid",
      "description": "Channel ID from list_channels"
    },
    "slack_channel_id": {
      "type": "string",
      "minLength": 1,
      "maxLength": 255,
      "description": "Slack channel for the test message. Slack refusals return status failed with a failure code. A missing Slack connection returns validation-failed; a transient connection refresh failure returns external-service-error."
    },
    "text": {
      "type": "string",
      "minLength": 1,
      "maxLength": 4000,
      "description": "Message text, 1-4000 characters; default 'Veryfront Slack connection test'"
    }
  },
  "required": [
    "channel_id",
    "slack_channel_id"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#",
  "description": "Arguments for the check_channel tool."
}
json
{
  "type": "object",
  "properties": {
    "channel_id": {
      "type": "string",
      "format": "uuid",
      "description": "The channel id returned by the tool."
    },
    "slack_channel_id": {
      "type": "string",
      "description": "The slack channel id returned by the tool."
    },
    "status": {
      "type": "string",
      "enum": [
        "delivered",
        "failed"
      ],
      "description": "Lifecycle status for the returned record."
    },
    "message_id": {
      "type": [
        "string",
        "null"
      ],
      "description": "The message id returned by the tool."
    },
    "failure_code": {
      "anyOf": [
        {
          "type": "string",
          "enum": [
            "not_in_channel",
            "channel_not_found",
            "needs_reauth",
            "rate_limited",
            "provider_error"
          ],
          "description": "The failure code returned by the tool."
        },
        {
          "type": "null",
          "description": "The failure code returned by the tool."
        }
      ],
      "description": "The failure code returned by the tool."
    },
    "retryable": {
      "type": "boolean",
      "description": "The retryable returned by the tool."
    },
    "checked_at": {
      "type": "string",
      "description": "The checked at returned by the tool."
    }
  },
  "required": [
    "channel_id",
    "slack_channel_id",
    "status",
    "message_id",
    "failure_code",
    "retryable",
    "checked_at"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#",
  "description": "Structured result returned by the check_channel tool."
}