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shipmail-mcp

shipmail-mcp

by shipmail-to
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

List Domains

shipmail_list_domains
Read-only

List domains in your ShipMail organization to prepare for mailbox creation or DNS configuration.

Instructions

List domains in the authenticated ShipMail organization. Use this before creating mailboxes or changing DNS-related settings.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "shipmail_list_domains"
  }
}

Input Schema

NameRequiredDescriptionDefault
limitNoMaximum results to return.
cursorNoPagination cursor returned by the previous call.

Output Schema

NameRequiredDescriptionDefault
dataYes
paginationYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changedv0.1.10
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • addedInput schema / properties / cursor / maxLength
      Added value: +8192
    • changedInput schema / properties / cursor / pattern
      Previous value: -"^[A-Za-z0-9_\\-=.+/]{1,512}$"New value: +"^[A-Za-z0-9_\\-=.+/]+$"
    • changedOutput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • changedOutput schema / properties / data / items / properties / managed_by / enum
      Previous value: -[
-  "external",
-  "namecom"
-]New value: +[
+  "external",
+  "shipmail"
+]
  2. First observedv0.1.9

TDQS

A4.3/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false, covering safety profile. Description adds no behavioral details beyond that, but given annotation coverage, the bar is lower and there's no contradiction.

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 concise sentences: first states function, second gives usage guidance. No unnecessary words.

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?

Given low complexity, annotations covering safety, and presence of output schema (indicated by context), description adequately informs an AI agent about the tool's purpose and when to use it.

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 coverage is 100% with clear descriptions for 'limit' and 'cursor'. Description adds no additional parameter meaning, so baseline of 3 is appropriate.

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?

Description clearly states 'List domains in the authenticated ShipMail organization,' using specific verb+resource. Among many domain-related siblings (e.g., create_domain, delete_domain, verify_domain, search_domains), this tool's purpose is distinct.

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

Usage Guidelines4/5

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

Explicitly advises 'Use this before creating mailboxes or changing DNS-related settings,' providing clear context. Lacks direct mention of when not to use it or alternatives, but the usage guidance is helpful.

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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