TablesWriteDo not retry automatically

Post a message on a row

post_row_message

Write a message on one row’s thread. A message is not a cell: it changes no value, and it appears in the row’s history as a `message` event authored by the acting user. A mentioned member is told in their notification tray. Internal notes cannot be written on BankSync tables.

Parameters

Parameter	Type	Required	Description
`tableId`	string	required	Table ID
`rowId`	string	required	Row ID — get from query_table_rows
`body`	string	required	The message, plain text. Mention a workspace member with an @person:user:<userId> token (user ids from list_workspace_members); a mention of anyone who is not an active member of this workspace is refused.
`idempotencyKey`	string	optional	Send the same key again and the message is not written twice
`attachmentIds`	string[]	optional	Files staged with POST /v1/tables/{tableId}/attachments (no fieldKey) to send with the message, at most 10. An inline image in the body (![alt](attachment:<id>)) must name one of them.

Example call

The tool call an MCP client sends (required arguments shown with placeholder values).

{
  "tool": "post_row_message",
  "arguments": {
    "tableId": "tableId_123",
    "rowId": "rowId_123",
    "body": "value"
  }
}

Use this tool in

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List tableslist_tablesList the tables in the workspace (id, name, kind — typed or custom — resource type, fields, row count, schema/revision versions).Get tableget_tableGet one table by id: its full field set (key, label, kind, display format, select options, whether the field is feed-owned and whether it can be written), the fields that form row identity, the promoted primary/date/amount bindings, row count, and its schema badge.Create tablecreate_tableCreate a table in the workspace.Update tableupdate_tableUpdate a table’s METADATA — name, icon, retention policy.

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