list_continents

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

No annotations are supplied, so the description bears the full burden; it does signal read-only retrieval and names the data source (Statesman), which is useful. It leaves the return shape unaddressed beyond an implicit continent name plus a country count, and the phrase "with sovereign country counts" sits awkwardly beside the include_countries parameter defaulting to false, leaving unclear whether counts are always present or only on request.

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?

A single compact sentence with the purpose front-loaded and no filler. Every clause contributes scope information (domain source and the country-count dimension).

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, zero-required-parameter read listing with fully documented schema, the essentials for invoking it are present. With no annotations and no output schema, though, the description should do more to characterize what comes back and how the country count relates to include_countries.

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%, covering q, limit, offset, and include_countries, so the schema already documents all four parameters. The description adds no filtering or pagination semantics beyond that, which is the baseline-3 outcome when the schema does the heavy lifting.

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?

Uses a specific verb+resource ("List world continents") and adds a source qualifier ("registered in Statesman") plus a scoping detail ("with sovereign country counts"), which clearly separates it from get_continent, create_continent, or list_countries. It stops short of naming a sibling explicitly, so it is clear but not maximally differentiated.

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 read-only listing intent is implied by "List" against siblings like upsert_continents_batch, populate_continents, or create_continent, so an agent can infer when this applies. However, there is no explicit when/when-not statement and no guidance on choosing between this and get_continent or list_countries.

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