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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds useful behavioral context: it returns a catalog with htmlUrl and jsonUrl per board, and explains the sorting logic for each board type. This goes beyond the annotations without contradicting them.

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?

Three sentences with no filler. The core purpose is front-loaded, the board-type distinction is explained in the second sentence, and the return format is stated in the third. Every sentence earns 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?

For a read-only list tool with no required parameters and full schema coverage, the description is nearly complete. It states the return format (catalog with htmlUrl + jsonUrl) and the sorting semantics. It does not explain what the track filter values map to explicitly, but the board-type explanation makes this inferable.

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%, so the schema already documents both parameters. The description adds the distinction between 'trust' and 'market' tracks implicitly via the board types, but does not explicitly map the track values to board categories. Baseline 3 is appropriate since the schema carries the parameter documentation burden.

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 ('List') and resource ('Trusgent ranking boards'), and immediately distinguishes the two board types (merchant vs. rate boards) with concrete examples. It also names the sibling tool 'get_ranking' implicitly by describing the catalog-level return, making it clear this is the list-level counterpart.

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 description explains what the tool returns and the two board categories, which gives clear context for when to use it. It does not explicitly name alternatives or exclusions, but the sibling list (get_ranking, search_registry) and the catalog-level wording make the intended use reasonably clear.

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