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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds nothing beyond that: it does not say whether the URL is time-limited/presigned, whether a failure occurs if the SDK hasn't been generated, or how the artifact choice affects the response.

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?

A single front-loaded sentence with zero filler, appropriate for a simple read tool. It is lean to the point of omitting useful context, but nothing is wasted.

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 simple two-parameter read with full schema coverage and annotations, the essential mechanics are covered. However, missing prerequisites (SDK must exist/be generated) and URL lifetime/link behavior leave the agent guessing about failure modes.

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%, including the artifact enum with its 'wheel' default and the sdk_uuid description, so the schema does the heavy lifting. The description contributes no additional parameter meaning, which matches the baseline 3.

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 — 'Get download URL for an SDK' — which is clearly distinct from siblings like sdk_generate, sdk_list and sdk_status. It does not, however, explicitly say how it differs from those siblings or what artifact types it can return.

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?

There is no guidance on when to use this tool versus alternatives, and no stated prerequisites. An agent must infer that the SDK must already exist or have been generated before a download URL is obtainable.

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