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

Annotations already declare readOnly, idempotent, non-destructive and closed-world, so the safety profile needs no description. The description does add one real signal — results are limited to published/public records — but says nothing about what happens for an unpublished or unknown id, which is the salient failure mode.

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?

One sentence, front-loaded with the verb and resource, with zero filler. Nothing to remove and nothing buried.

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?

With an output schema covering return values and annotations covering safety, the definition is nearly self-sufficient for a one-parameter lookup. The remaining gap is tool routing: no guidance distinguishes it from search_products or the get_artist/get_editor siblings.

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?

Only one parameter and the schema already documents it at 100% coverage, so the baseline of 3 applies and the description adds mild redundancy by repeating 'numeric id'. The added qualifier that the id identifies a *published* product gives it slightly more than the schema alone, so a 4 rather than a flat baseline.

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 ('Fetch full public details for a single published product') plus the lookup key. The single-vs-search distinction is implicit in 'single', but no sibling is named, so it falls short of a 5.

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?

No explicit when-to-use or when-not; the agent must infer that the nearby search_products tool is for discovery and this one is for a known id. 'Published' hints that drafts are out of scope, but that boundary is never stated as a condition.

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