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

With no annotations, the description carries the behavioral burden. It usefully discloses that the tool is free and returns only the top 5 results with fields such as licence number, first licensed, and end date, but it does not explain matching behavior, ordering, or what happens when no results are found.

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 extremely concise and front-loads the most important attributes: free, what it finds, how, and the top-5 limitation. There is no wasted text.

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 one-parameter search tool, the description covers the core purpose, cost, result limit, and some returned fields. However, with no annotations or output schema and 0% schema description coverage, more detail on matching semantics and result ordering would be needed for full completeness.

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 0%, so the description needs to clarify the single required parameter. It does so minimally by saying 'by trade name,' which is more meaningful than the bare schema property 'name,' but it does not specify exact vs partial matching or formatting expectations.

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 states a specific verb and resource: find Health Canada-licensed medical devices by trade name. It also discloses the result scope (top 5), which helps distinguish it from device_search_full, though it does not name that sibling explicitly.

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 mention of 'FREE' and 'Top 5' implies this is the quick limited lookup, but the description never explicitly says when to use it instead of device_search_full, licence_detail, or batch_licence_check. Usage is inferable but not guided.

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