Add Vpn Account

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

No annotations are provided, so the description carries the full behavioral burden, yet it discloses nothing beyond the act of adding. It does not mention required permissions, side effects, prerequisite server configuration, or whether the new account takes effect immediately. Only the implicit 'add' mutation semantics are conveyed.

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

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

The single Chinese phrase is clean and front-loaded with no wasted words, but for a five-parameter mutation tool it is under-specified rather than genuinely concise. Brevity here reflects missing information rather than disciplined editing.

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

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

Given five parameters (three required), no annotations, and low schema coverage, the description is far too thin. An output schema exists so return values need not be explained, but the agent gains no understanding of prerequisites, parameter meaning, or behavioral expectations for this mutating tool.

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

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

Schema description coverage is only 20% (only vpn_type is documented), so the description must compensate for username, password, comment, and ip_type — but it says nothing about any parameter. It adds no meaning over the sparse schema, leaving four parameters effectively undocumented in both places.

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

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

The description states an add operation on a VPN resource, but 'VPN account' versus 'VPN client configuration' (客户端配置) is ambiguous, and the term overlaps confusingly with 'VPN client' tools like list_vpn_clients and get_pptp_client_config. It does not distinguish itself from the delete_vpn_account/list_vpn_accounts siblings or clarify whether this targets a server-side account or an outbound dialing profile.

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

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

There is no guidance on when to use this tool, what prerequisites exist (e.g., an existing VPN server of the matching vpn_type), or how it relates to alternatives. The agent is left to infer context entirely from the name and sibling list.

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