ftp_list_sites

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

With no annotations, the description carries the full burden. It implies a read-only operation and states the output is a list of saved profiles. However, it does not disclose details such as whether the list includes full connection credentials, whether authentication is required, or if there are any side effects. This is minimal but adequate for a simple listing tool.

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 description is a single, concise sentence that immediately communicates the purpose. Every word earns its place, with no filler or redundant phrasing.

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 the absence of an output schema, the description should explain what the returned list contains (e.g., names only, full host/port details). It only says 'list all saved connection profiles,' which is somewhat incomplete for an agent that needs to use the results. The simplicity of the tool balances this, but more return-format detail would improve completeness.

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?

The tool takes zero parameters, and the schema is empty, so there is no parameter information to provide. Per the guidelines, zero-parameter tools receive a baseline of 4. The description correctly adds no extraneous parameter details.

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 clearly states the tool's action ('List') and resource ('all saved connection profiles'). It distinguishes itself from siblings like ftp_list_connections (which likely lists active connections) and ftp_list (which lists files in a directory) by specifying 'saved connection profiles'.

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 versus alternatives like ftp_list_connections or ftp_connection_info. The description provides no context, prerequisites, or exclusions, leaving the agent to infer the appropriate use case.

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