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

No annotations are provided, so the description carries the full burden. It usefully discloses that the tool is 'FREE, no API key needed,' that it resolves links 'without opening it,' and that it only supports ShareCut links. This gives an agent a solid safety and scope picture, though it does not describe rate limits or detailed output behavior.

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 compact and well-structured: it leads with the most operationally important facts (free, no key), states the core behavior, gives a practical use case, and ends with a scope limitation. Every sentence adds value and there is no redundancy or filler.

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 single-parameter tool with no output schema, the description conveys what the tool returns conceptually — the destination and usage count — and covers authentication and scope. It does not specify error behavior or exact response format, but the core usage context is sufficiently complete for correct invocation.

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 schema already fully documents the single parameter, including that shortCode can be 'The short code, or a full https://sharecut.site/... URL.' The description adds no further parameter-specific meaning, 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.

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

The description clearly states a specific action — resolving where a sharecut.site short link goes and how many times it has been used — with a clear resource and scope. It does not explicitly compare itself to sibling tools such as check_short_code or get_link, but the stated purpose is specific enough to distinguish itself functionally.

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 a concrete use case: 'Useful before following or forwarding a link someone sent.' It also provides an exclusion with 'Only resolves ShareCut links.' However, it does not mention alternatives or when not to use this tool in favor of a sibling, so it falls short of fully explicit when/when-not guidance.

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