as

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

With no annotations, the description carries full burden. It reveals the internal adapter pattern that maps flat params to SDK's positional calls, which is useful. However, it lacks details on side effects, authentication needs, or rate limits, which would help an agent anticipate behavior.

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 adequately structured but slightly verbose, especially the explanation of the adapter mapping. It front-loads the purpose and usage pattern, but each sentence could be tightened. A more concise version would improve scannability.

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?

Given the complexity of a multi-method tool with no output schema, the description covers usage and internal mapping well. However, it omits return values or error handling, which would be necessary for completeness. The 'list' method partially compensates.

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 coverage is 100%, so baseline is 3. The description adds value beyond the schema by specifying method values (camelCase verbs like uploadMedia, getMediaUrl) and explaining that params is a flat arguments object. It also guides users to 'list' for per-method schemas.

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 clearly states the tool's function as an artifact store for upload/download media, URI resolution, and presigned URLs, using verbs like uploadMedia, getMediaUrl, etc. It distinguishes itself from sibling tools (tm, comm, etc.) by its specific domain, though it could explicitly state 'not for communication or knowledge base operations'.

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 provides explicit usage instructions: call with {"method":"<verb>","params":{...}} and use {"method":"list"} for full method schemas. It clarifies the adapter's mapping to avoid positional argument construction. However, it does not specify when not to use this tool or mention alternatives.

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