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vocweb

synology-office-mcp

by vocweb

mailplus_list_folders

Lists all email folders in your MailPlus account hierarchy. Specify an email address or use the default account.

Instructions

List all mail folders (IMAP-like folder tree) for the MailPlus account.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
accountNoEmail account address. If omitted, uses the authenticated user's primary account.
Behavior3/5

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

Without annotations, the description carries the full burden. It correctly implies a read-only operation by saying 'List', adding 'IMAP-like folder tree' suggests hierarchical structure. However, it omits details like whether all subfolders are included, authentication requirements, or side effects.

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 a single concise sentence that immediately conveys the tool's purpose, with no wasted words. It is front-loaded and efficient.

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?

Given the tool's simplicity (one optional parameter, no output schema), the description is largely complete. It indicates that folders are listed as a tree-like structure, which suffices for an agent. A minor omission is whether the response includes nested paths, but overall adequate.

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% for the single optional parameter 'account', which is already well-documented. The description adds no additional meaning beyond the schema, so the baseline score 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?

The description clearly states the verb 'List', the resource 'mail folders', and adds 'IMAP-like folder tree' to indicate structure. It distinguishes itself from sibling mail tools like mailplus_list_messages by specifying that it lists folders, not messages.

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 mailplus_list_messages or other folder-related operations. It does not mention prerequisites or context like 'use this to view folder hierarchy before moving messages.'

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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