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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so the safety profile is fully carried by structured data. The description adds only that it returns 'full' metadata, with no note on what happens for unknown IDs or how the optional catalog context alters results.

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?

Two short sentences, front-loaded with the core action, and the example is compact and useful. Nothing is padded, though a sentence on sibling differentiation would earn its place.

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?

An output schema exists, so return values need not be described. Still, with a nested 'catalog' parameter, a near-identical sibling (get_product_details), and zero required parameters, the definition leaves real gaps for correct selection and 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%, setting the baseline at 3. The inline example supplies a concrete product_id format ('agd-pass-2000'), which is a mild addition, but the 'catalog' object parameter is never explained or given a usage condition.

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?

It states a specific verb and resource ('Retrieve full product or API pass metadata by product_id'), which is clear enough on its own. However, the sibling tool set contains get_product_details, and the description does nothing to distinguish the two, leaving the agent unable to tell which one to pick.

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 when-to-use guidance is given, no prerequisites, and no mention of when not to use it. The obvious alternative (get_product_details) is never referenced, so the agent must infer the split from names alone.

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