Unsplash User Statistics

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

Annotations already declare readOnlyHint=true and openWorldHint=true, and the description simply repeats 'Read-only' without adding anything beyond the schema. The description does not mention clamping of quantity to a max of 30, which the schema notes, nor any response behavior. Since annotations cover the safety profile, this is acceptable but adds no extra value.

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 efficient sentence followed by 'Read-only'. Every token contributes to communicating the core purpose, and there is no fluff or repetition beyond the harmless echo of the annotation.

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 low-complexity, read-only operation with two well-documented parameters, the description is nearly complete. It does not mention the clamp behavior or implicit maximum of 30 days, but the schema covers that, so nothing critical is missing for a safe and correct 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?

Schema description coverage is 100%, with both properties thoroughly documented, including defaults, limits, and the '@' instruction. The description only adds 'default N days (default 30)' which mirrors the schema, so it does not meaningfully increase understanding beyond the structured data.

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 a specific action ('Get') and a specific resource ('a user's download and view totals'), and clarifies the time window with a default. It distinguishes itself from related tools like photo statistics or total stats by focusing on per-user totals.

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 explicit when-to-use guidance or comparison against sibling tools such as unsplash_photo_statistics, unsplash_total_stats, or unsplash_month_stats. The context is implied by 'a user's' as opposed to 'photo' or 'total', but an agent is given no explicit instruction on when to choose this tool over alternatives.

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