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

Annotations already declare readOnlyHint and idempotentHint, so the safety profile is covered. The description adds domain context (geopolitical, per-country) but does not disclose operational behavior such as how days_back affects results or any time-sensitivity.

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, front-loaded sentence with no wasted words. The essential scope and input format are conveyed compactly.

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 output schema and read-only/idempotent annotations present, return values and safety are reasonably covered. However, the description omits days_back semantics and does not explicitly route the agent away from sibling brief tools, leaving moderate ambiguity.

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 0%, but the description adds that iso2 is an ISO-2 country code, which is useful. It does not explain days_back, whose semantics are only inferable from the parameter name and default value.

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 identifies a specific resource scope (per-country) and content area (geopolitical drilldown), with the ISO-2 format anchoring the input. It is clear enough to distinguish from generic siblings like get_brief and get_today_brief, though it does not name them explicitly.

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 'per-country' phrasing implies the tool should be used for country-level geopolitical briefs, but there is no explicit guidance on when to choose this over alternatives such as get_brief or get_today_brief, and no exclusions are stated.

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