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

With no annotations provided, the description carries the behavioral disclosure burden. It discloses the publication cadence (every Monday), the content granularity (score movements and driving dimensions), and the access condition (free to read). For a zero-parameter read tool, this is meaningful context beyond the tool's name.

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 sentences, no wasted words. The main purpose is front-loaded, followed by detail on content and availability. Every clause 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 simple, no-argument informational tool, the description fully covers what the briefing contains, when it is available, and that it is free. No output schema or parameters exist, so nothing essential is missing.

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?

The tool has zero parameters and the schema confirms an empty object, so there are no parameter semantics to document. The baseline of 4 applies because there is nothing the description needs to compensate for.

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 names a specific resource (current weekly briefing) and a clear action (get in full), then elaborates exactly what the briefing contains: which sovereign credibility scores moved, by how much, and which dimension drove each move. This clearly differentiates it from siblings get_country and list_countries.

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 gives clear usage context: the briefing is weekly, published every Monday, and free to read. It implies when the tool is useful and that no special access is needed, though it does not explicitly name alternative tools or say when not to use it.

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