List my short links

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

Annotations already include readOnlyHint=true, so the description correctly aligns by describing a read-only listing operation. It adds the API key requirement and clarifies the scope (authenticated account). However, it does not mention pagination, result limits, or other behavioral details, but this is a reasonable amount given the simple 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 only two sentences, front-loaded with the action and resource. The second sentence about requiring an API key is useful authentication context. No filler or redundant wording.

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?

For a zero-parameter tool with simple functionality, the description adequately covers what the tool does, the data returned (destinations and redirect counts), and the API key requirement. It lacks explicit return format or pagination details, but those are not critical for this simple list operation.

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 has zero parameters, so the baseline is 4. The description does not need to add parameter-level detail because the schema is empty and there are no inputs to explain.

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 uses a specific verb ('List') with a resource ('short links on the authenticated account') and states what is included (destinations and total redirect counts). This clearly distinguishes it from sibling mutation tools like shorten_link, update_link, and delete_link, as well as the more specific get_link_stats.

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?

The description gives clear context: this lists the short links on the authenticated account. It implies this is the account-level listing tool and differentiates from creating/updating/deleting links, but does not explicitly state when to use it over get_link_stats or mention exclusions.

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