create_short_url

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

With no annotations conveying safety or idempotency, the description carries the full burden of behavioral disclosure. It merely states 'Create' with no details about potential side effects, such as whether an existing customSlug causes failure or if a random slug is generated. The lack of behavioral nuance is a significant gap for a mutation 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, front-loaded sentence with no wasted words, which is concise. However, given the tool's complexity (11 parameters, no schema descriptions), it is under-specified rather than effectively concise. It does not provide the minimal contextual scaffolding needed for a tool with many optional settings.

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?

The tool has 11 parameters, no output schema, and no annotations, so the description must shoulder the explanatory burden. The one-sentence description is entirely inadequate for understanding the tool's full behavior, options, and return values. It offers no guidance on how the many parameters affect the resulting short URL.

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 0%, and the description mentions none of the 11 parameters. The description adds no meaning beyond the schema, leaving the agent without any hints about the purpose or usage of parameters like customSlug, maxVisits, or validUntil. This fails to compensate for the sparse schema.

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 (create) and resource (Shlink short URL), which clearly distinguishes it from sibling tools like edit_short_url, delete_short_url, and get_short_url. It is unambiguous about the tool's primary function.

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 provides no context on when to use this tool versus alternatives. It does not mention prerequisites, such as required domains or valid URL formats, nor does it explain scenarios where editing an existing short URL might be more appropriate. The usage is only implied by the tool's name.

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