file_manager

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

With no annotations, the description carries the full burden of disclosing behavior. It only states that files are sent to the server, with no mention of side effects, authentication needs, file handling limits, overwrite behavior, or return values. "Manage files" is too vague to convey behavioral implications.

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 very short and front-loaded with the core purpose. Both sentences earn their place: one states the high-level function and the other clarifies the input mechanism. It could be tightened by replacing the vague "manage" with specific operations, but it is not bloated.

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 output schema and only an empty parameter schema, so the description must provide nearly all context. It does not explain how an agent should invoke the tool, what happens after upload, or what the response contains. This is insufficient for reliable tool selection and 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 input schema has zero parameters and 100% schema description coverage by default. The description adds a hint that the tool accepts files as a drop input, which is relevant context, though it does not define any programmatic parameter.

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 states a specific action, "Upload and manage files," and clarifies with "send them to the server." It identifies the resource as files, but "manage" is broad and does not fully differentiate from sibling tools like list_files and read_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?

No guidance is given about when to use this tool versus alternatives such as list_files, read_file, or vtable_drop_files. The phrase "Drop files here" suggests a user-facing drag-and-drop context but does not help an agent decide when to select this tool.

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