acedatacloud_get_invoice_download

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

With no annotations, the description carries the behavioral disclosure burden. It usefully reveals that the URL is short-lived and signed, and that the API does not follow redirects. However, it does not mention expiration duration, required permissions, or what the JSON response actually contains beyond a URL.

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 filler. Every word contributes meaning—short-lived, signed, URL, JSON, no redirects—making it highly efficient.

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 tool's low complexity (one parameter, output schema present), the description covers the essential behavioral aspects. It could be more complete by noting the URL's expiration timeframe or that it is intended for direct download, but for a simple URL-fetch tool, the description is largely sufficient.

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 covers 100% of the parameter with 'Issued invoice UUID,' so the baseline is 3. The description itself adds no additional meaning about invoice_id, instead relying entirely on the 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-resource pair ('Get a short-lived signed invoice URL') and clarifies the JSON response and non-redirect behavior. This clearly distinguishes it from sibling invoice tools like get_invoice or preview_invoice.

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 implies when to use it—when you need a download URL rather than invoice details—but does not explicitly state alternatives or exclusions. For example, it doesn't mention that get_invoice should be used for invoice metadata or that preview_invoice is for previews.

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