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mcp-server-smallinvoice

mcp-server-smallinvoice

by AIWerk
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

get_contact_address

Read-only

Get address data for a contact by specifying contact ID and address ID, with optional fields to include.

Instructions

Returns data of specified address

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": {
      "contact_id": "<contact_id>",
      "address_id": "<address_id>"
    },
    "name": "get_contact_address"
  }
}

Input Schema

NameRequiredDescriptionDefault
contact_idYescontact ID
address_idYesaddress ID
withNoComma separated, optional keys that should be included in the response.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.1/5.0
Behavior3/5

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

Annotations already indicate readOnlyHint=true and destructiveHint=false, which the description aligns with ('returns'). However, the description adds no additional behavioral context beyond the annotations (e.g., no mention of auth or rate limits).

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

Conciseness4/5

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

The description is a single sentence that is front-loaded and concise. It could be slightly expanded for clarity but is not overly verbose.

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

Completeness2/5

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

The description does not explain what 'data' includes, the relationship between contact_id and address_id, or the response format. With no output schema, more context is needed for a complete understanding.

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%, so each parameter is already documented. The tool description does not add extra meaning or usage notes beyond the schema.

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

Purpose4/5

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

The description clearly states the tool returns data for a specified address. It distinguishes from sibling tools like list_contact_addresses (listing) and update_contact_address (modification) implicitly, but does not explicitly differentiate.

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

Usage Guidelines2/5

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

No guidance is provided on when to use this tool versus alternatives such as list_contact_addresses or update_contact_address. The description lacks context for selecting this tool over siblings.

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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