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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety and scope are covered. The description adds one genuinely useful piece of context, that the underlying current-regime score is 'experimental', which warns the agent the metric is not production-grade, but it says nothing about ordering, result size, or freshness.

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?

One tight sentence with the filter criterion front-loaded and no filler. The parenthetical default duplicates the schema, a small redundancy, but nothing is wasted overall.

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 output schema, the description should indicate what a result looks like (country names only, or names plus scores?) and clarify what the 'experimental current-regime score' actually measures. Neither is provided, leaving a meaningful gap for an agent that must interpret the output.

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% and the single threshold parameter is fully documented there, including its 0-1 range and default. The description repeats the 0.5 default and adds nothing about how the threshold is applied or what happens at boundaries, so baseline 3 applies.

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?

States a specific resource (countries) and the exact filter criterion (experimental current-regime score above a threshold), which is far more than a restatement of the name. It does not, however, distinguish itself from the many other risk-listing siblings such as get_shutdown_risk, get_isp_risk_index, or get_platform_risk, so the agent cannot tell which risk list it wants.

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?

There is no statement of when to use this tool rather than an alternative risk tool, nor any prerequisite or context. The only implicit guidance is the threshold itself, which does not route the agent among the crowded risk-related sibling set.

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