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

Annotations already indicate this is a non-read-only, idempotent, non-destructive operation. The description adds useful behavioral context beyond annotations: the 10 MiB limit and the fact that the upload avoids exposing a private storage URL. It does not contradict the annotations.

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 phrase contributes meaning: the action, the size limit, the platform, and the privacy rationale. It is appropriately concise for a tool with structured annotations and schema.

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 tool with 6 parameters, 0% schema description coverage, and no parameter-level guidance, the description is too sparse to support correct invocation. It does not explain idempotencyKey, folder placement, fileId reuse, or when to prefer this over sibling tools. The output schema reduces the need to describe return values, but the input side remains under-specified.

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%, and the description does not compensate by explaining any of the 6 parameters. While names like name, mimeType, and contentBase64 are somewhat self-explanatory, optional fileId/folderId and idempotencyKey semantics are left entirely undocumented, making correct invocation harder.

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 and resource: 'Upload up to 10 MiB through NotePom'. It clearly states what the tool does and adds a meaningful constraint (size limit) plus a privacy motivation. The 'upload' action distinguishes it from read/trash/move siblings without confusion.

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 gives clear context about when to use this tool: uploading files up to 10 MiB through NotePom when avoiding exposure of a private storage URL matters. It does not explicitly name alternatives or exclusion conditions, but the context is specific enough to guide tool selection.

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