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

No annotations are provided, so the description carries the full behavioral burden. It indicates that the tool resolves a country and returns posts, but it does not say whether the operation is read-only, how pagination behaves, what happens when q is omitted, or what the response includes.

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 a single front-loaded sentence with no filler. However, its brevity leaves important gaps rather than being fully optimized for correct invocation.

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 no annotations, no output schema, and only 33% parameter description coverage, the description is not complete enough. It omits optional-q behavior, pagination semantics, and any indication of return structure.

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 only 33%: q is documented as a country-name search, while limit and offset are undocumented in both schema and description. The description mentions country name but adds no meaning for pagination parameters and barely goes beyond the existing q schema text.

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 action and resource: resolving a country name to its ISO code and listing its posts. It is clear enough to distinguish a country-resolution tool from calculators and per-diem tools, but it does not explicitly differentiate itself from the sibling get_country tool.

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 implies usage when a country name needs resolving, but it gives no explicit when-to-use guidance, exclusions, or comparison to alternatives such as get_country. An agent must infer the selection criteria entirely.

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