Caribooks (QuickBooks Online)

create attachable

create_attachable

Create a text note attached to a QuickBooks record. Does not upload a file or render a PDF.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "entity": "<entity>"
    },
    "name": "create_attachable"
  }
}

Input Schema

Name	Required	Description	Default
`entity`	Yes	The Attachable to create, as a QuickBooks Online API v3 Attachable object. Do not send government identifiers (SSN or tax IDs), birth dates or card-processing details. Manage those fields directly in QuickBooks. A note: Note (the text) plus AttachableRef: [{ EntityRef: { type: 'Bill', value: '<Id>' } }] to pin it to a record. Files are not created this way; attach_file uploads a file and attach_receipt renders receipt text as a PDF.
`company`	No	Which connected QuickBooks company to use (name, realm id, or connection id). Optional when only one company is connected.

Schema Changelog

Changes observed during successful MCP inspections.

First observedSep 21, 2026

TDQS

A4.5/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already indicate readOnlyHint=false and destructiveHint=false, so the description doesn't need to restate those. It adds a useful boundary ('does not upload a file or render a PDF') but does not disclose auth requirements or side effects. Adequate for a create operation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two short, front-loaded sentences, zero filler. The description earns its place by stating the core function and the key exclusion in the first sentence.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With a detailed schema and the boundary note about file vs. PDF, the agent has everything needed to call this tool correctly. No output schema exists, but a create operation's return value is not necessary for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, and the entity parameter description is rich enough to explain the required structure (Note plus AttachableRef). The tool description adds no extra parameter meaning, so the baseline of 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific action and resource: create a text note attached to a QuickBooks record, and explicitly differentiates from file upload and PDF rendering. This makes it immediately clear what the tool does and how it differs from attach_file and attach_receipt.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description says 'Does not upload a file or render a PDF,' implying the alternatives, and the input schema explicitly names attach_file and attach_receipt as the tools for those actions. An agent gets clear routing guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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