upload-file-from-url

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

No annotations are provided, so the description carries the full behavioral burden. It usefully discloses the server-side fetch model (the wiki server, not the client, downloads the file), but says nothing about authentication or permission requirements, overwrite behavior when the filename already exists, size limits, or failure modes for unreachable URLs.

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?

Two short sentences, front-loaded with the action and resource, with the second sentence adding only the mechanism that distinguishes it from the sibling tool. No 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 6-parameter mutation tool with no annotations and no output schema, the definition is adequate but thin: it omits conflict/overwrite semantics, permission needs, and any notion of what the call returns (e.g., the created file reference). The schema covers the inputs, so the remaining gap is behavioral rather than structural.

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 100%, so all six parameters are already documented in the schema, including the attribution note on 'user' and the wikitext hint on 'description'. The description adds no parameter-level detail beyond that, so the baseline of 3 applies.

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?

States a specific verb and resource ('Upload a file to the wiki') and adds the distinguishing mechanism ('by fetching it from a URL'), which separates it from the sibling upload-file. It never names that sibling explicitly, so an agent must infer the routing, but the purpose itself is unambiguous.

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?

Usage is only implied: the 'fetching it from a URL' clause suggests this is for remote sources rather than local files, but there is no explicit when-to-use statement, no mention of the alternative upload-file, and no prerequisites or exclusions.

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