get_download_url

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

Without annotations, the description carries the full burden of behavioral disclosure. It mentions the URL is 'temporary,' which is a useful trait. However, it does not explicitly state that this is a read-only operation, nor does it describe what happens if the path does not exist or whether special permissions are required. The verb 'get' implies safety, but the description does not elaborate.

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 extremely concise, consisting of a single declarative sentence followed by one line of parameter explanation. It front-loads the core purpose and contains no filler or redundant information.

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 no annotations and no output schema, so the description must convey return value behavior and constraints. It successfully notes the URL is temporary, but it does not specify the response format, error handling, or whether the path must point to an existing file. For a simple single-parameter tool, this is minimally adequate but leaves some gaps.

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 description's Args section explains 'path' as 'Path on Yandex Disk (e.g. "/Documents/report.pdf")'. This adds substantial meaning beyond the input schema, which only labels the parameter 'path' as a string. The example clarifies the expected format and semantic context, fully compensating for the 0% schema description coverage.

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 purpose: 'Get a temporary direct download URL for a file.' The verb 'get' plus the specific resource 'temporary direct download URL' makes the action unambiguous and distinct from sibling tools like list_files or upload_local_file.

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. The description does not mention circumstances that would favor this over list_files, get_metadata, or publish, nor does it provide exclusions or prerequisites. The phrase 'temporary direct download URL' only implies usage for obtaining a link, but no explicit direction is given.

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