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

No annotations exist, so the description carries the full behavioral burden. It does disclose useful traits — the underlying transport, that the result is a ULID registered in public_id_map, and that heavy uploads are isolated from job submission — but says nothing about auth requirements, size limits, overwrite behavior on name collision, or failure modes, which matter for an upload 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?

Three short sentences, front-loaded with the action and endpoint, then the return contract. Dense and free of filler, though the heavy inline code formatting adds little for the reader.

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?

A write/upload tool with no annotations and 0% schema coverage needs more support than this. The output schema exists so return values are reasonably covered, but with three undocumented parameters and no stated constraints, limits, or collision behavior, the definition is only minimally sufficient.

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 never mentions file_path, file_name, or file_type. The distinction between file_path and file_name, and the meaning/accepted values of the optional file_type (default empty string), are left entirely undocumented in both schema and description.

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 with implementation detail ("Upload a file to legacy NAS via was-util /uploadNAS (port 5000)"), which distinguishes it from the encryption and billing siblings. It does not explicitly contrast with the closely-named sibling upload_file_content, so an agent must infer the path-vs-content distinction from the parameter names.

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?

Gives clear workflow context: the returned asset_id is "for use with submit_encrypt_job," which tells the agent this is a prerequisite step in the encryption pipeline. It offers no exclusions or explicit statement of when to prefer upload_file_content instead.

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