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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so safety behavior is well covered. The description adds useful return behavior by stating it returns a short answer, check date, and URL, though it does not discuss auth, rate limits, or no-match behavior.

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?

Front-loads the country scope with 'ITALY.' and packs purpose, topic coverage, and return payload into a single efficient sentence. Every phrase contributes and there is no repetition or filler.

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 one-parameter guide lookup with no output schema, the description is mostly complete: it states the country, topical scope, and returned fields. It omits only edge-case behavior such as what happens if no guide matches, which is a minor gap for this complexity level.

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%, with the single query parameter already described as 'The question or keywords.' The description adds topical scope for what the query should concern, but does not add query syntax, formatting guidance, or handling details beyond the schema. Baseline 3 is appropriate when the schema already documents the parameter.

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 verb (Finds), a clear resource (the Payotte guide), and a precise scope (ITALY, buying/financing/selling/renting/renovating/owning a home). The country scope clearly distinguishes it from sibling country guides such as guide_es or guide_de.

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?

Provides clear context: use when seeking an Italian home guide answer about buying, financing, selling, renting, renovating or owning. It does not explicitly state when not to use it or name alternative sibling tools, but the Italy scope makes the correct routing obvious.

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