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 and largely fails it: no mention of authentication, rate limits, whether results are cached or live, or what the response looks like. 'To improve success of results' hints at result variability but discloses nothing concrete.

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 short sentences, front-loaded with the purpose before the formatting advice. Minor waste in re-declaring 'Args: address: string', which duplicates the schema, and in the grammatical slip 'informations'.

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 and no output schema, the description should ideally describe the returned data and error behavior for a simple single-param tool. The input-format hint is helpful, but the output side is entirely unspecified, leaving a real gap.

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% for the single address parameter, so the description must compensate, and it does: it specifies a concrete format '[street], [city] [postal code] [country]'. This is meaningful guidance beyond the bare 'type: string' schema, though it does not explain how malformed input is handled.

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 verb ('Retrieve informations') and resource ('about a place'), which is clearer than a tautology, but it is vague about what is actually returned — coordinates, formatted address, administrative data — and it never distinguishes itself from the sibling 'reverse_geocode'. An agent must guess what 'informations' means.

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 versus alternatives; notably the sibling 'reverse_geocode' (the inverse operation) is never mentioned. The only guidance is about input formatting for better results, which is input semantics rather than usage routing.

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