get_activity

Access and behavior

A Read-only, Write or Administrator OAuth grant can call this tool within the user’s current team role. Tools are listed and callable only when the current grant and role permit them.

Task and attachment changes are recorded; comment and reply events are excluded, including historical comment rows. Activity identifies the responsible actor and, on new records, connection type and request ID.

Arguments

Argument	Required	Type or meaning
`taskId`	Yes	Task UUID, not its human identifier such as ENG-1.
`limit`	No	integer
`cursor`	No	Opaque nextCursor from the preceding response with identical filters.

Complete input schema

{
  "type": "object",
  "properties": {
    "taskId": {
      "type": "string",
      "format": "uuid",
      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 100
    },
    "cursor": {
      "type": "string",
      "maxLength": 2048
    }
  },
  "required": ["taskId"],
  "additionalProperties": false
}

Example call

The client initializes the MCP connection before sending this JSON-RPC call. Example records are fictional.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_activity",
    "arguments": {
      "taskId": "22222222-2222-4222-8222-222222222222",
      "limit": 50
    }
  }
}

Example result

Mill returns this object in structuredContent and normally a JSON text content block (large responses may shorten the text block). A tool failure sets isError; never treat an error as a completed mutation.

{
  "items": [
    {
      "id": "77777777-7777-4777-8777-777777777777",
      "taskId": "22222222-2222-4222-8222-222222222222",
      "boardId": "11111111-1111-4111-8111-111111111111",
      "actorId": "66666666-6666-4666-8666-666666666666",
      "actorName": "Alex Morgan",
      "actorKind": "human",
      "action": "task.updated",
      "detail": {
        "fields": ["priority"],
        "connection": {
          "type": "session",
          "requestId": "example-request-001"
        }
      },
      "createdAt": "2027-01-18T09:30:00.000Z"
    }
  ],
  "hasMore": false,
  "nextCursor": null
}

Connect a client

MCP reference

API Reference

get_activity

Workflow

Access and behavior

Arguments

Example call

Example result

​Workflow

​Access and behavior

​Arguments

​Example call

​Example result

​Related reference

Workflow

Access and behavior

Arguments

Example call

Example result

Related reference