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TheSameAbramovych

qmailing MCP server

List mailboxes

qmailing_list_mailboxes
Read-only

List all mailboxes in your qmailing account to get an overview of email count, unread count, and mailbox size. Useful for retrieving a mailbox ID or checking inbox volume.

Instructions

List all mailboxes belonging to the authenticated qmailing account. Use when the user asks "what mailboxes do I have?", needs a mailbox id before another action, or wants a quick inbox-volume overview (emailCount / unreadCount / sizeBytes are populated).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

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

Annotations already declare readOnlyHint=true, confirming safe read access. The description adds that it populates emailCount, unreadCount, and sizeBytes, providing concrete behavioral details beyond annotations. No contradictions.

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?

The description is extremely concise: one sentence for purpose and one sentence for usage guidance. It is front-loaded with the key action and avoids unnecessary detail.

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

Completeness4/5

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

For a simple list tool with no parameters and no output schema, the description provides sufficient context: it lists all mailboxes and highlights the populated fields. No obvious gaps for the tool's complexity.

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?

There are no parameters, and schema coverage is trivially 100%. The description adds no parameter-specific semantics, which is expected. Baseline 3 is appropriate.

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 it lists all mailboxes for the authenticated qmailing account. It is specific about the resource and action, but does not explicitly differentiate from sibling list tools. However, the sibling context (list_domains, list_emails, list_webhooks) makes the scope clear.

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?

The description gives explicit usage scenarios: when the user asks about mailboxes, needs a mailbox ID, or wants volume overview. It does not provide negative examples or alternatives, but the scenarios are practical and 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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