upload_from_url

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

With no annotations provided, the description carries the full burden. It adds the http/https URL constraint and overwrite behavior, but does not disclose whether the operation is asynchronous, what it returns, or how errors are handled. This is moderate transparency 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 clear sentence followed by a structured list of arguments. Every line earns its place, no fluff, and the main idea is front-loaded.

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?

There is no output schema, so the agent cannot infer return values; the description does not mention whether it returns a job ID, succeeds silently, or throws errors. It also omits size limits or authentication details, leaving gaps for a mutation tool. However, it covers the basic usage adequately.

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%, so the description fully compensates by explaining each parameter: url specifies source and scheme, path gives an example, and overwrite explains the boolean's effect. It adds meaning beyond the raw schema, though it does not detail failure behavior when overwrite is false.

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 ('Upload') with a resource ('file to Yandex Disk') and the method ('by downloading it from a remote URL'). It clearly distinguishes itself from sibling tools like upload_local_file by specifying the remote URL source.

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 clearly implies this tool is for uploading files from a remote URL, giving context for when to use it. However, it does not explicitly mention alternatives or when not to use it, such as using upload_local_file for local files.

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